4049 lines
102 KiB
Perl
4049 lines
102 KiB
Perl
#!/usr/bin/env perl
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#
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# ====================================================================
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# Written by Andy Polyakov <appro@openssl.org> for the OpenSSL
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# project. The module is, however, dual licensed under OpenSSL and
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# CRYPTOGAMS licenses depending on where you obtain it. For further
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# details see http://www.openssl.org/~appro/cryptogams/.
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# ====================================================================
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#
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# This module implements support for Intel AES-NI extension. In
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# OpenSSL context it's used with Intel engine, but can also be used as
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# drop-in replacement for crypto/aes/asm/aes-x86_64.pl [see below for
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# details].
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#
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# Performance.
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#
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# Given aes(enc|dec) instructions' latency asymptotic performance for
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# non-parallelizable modes such as CBC encrypt is 3.75 cycles per byte
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# processed with 128-bit key. And given their throughput asymptotic
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# performance for parallelizable modes is 1.25 cycles per byte. Being
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# asymptotic limit it's not something you commonly achieve in reality,
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# but how close does one get? Below are results collected for
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# different modes and block sized. Pairs of numbers are for en-/
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# decryption.
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#
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# 16-byte 64-byte 256-byte 1-KB 8-KB
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# ECB 4.25/4.25 1.38/1.38 1.28/1.28 1.26/1.26 1.26/1.26
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# CTR 5.42/5.42 1.92/1.92 1.44/1.44 1.28/1.28 1.26/1.26
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# CBC 4.38/4.43 4.15/1.43 4.07/1.32 4.07/1.29 4.06/1.28
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# CCM 5.66/9.42 4.42/5.41 4.16/4.40 4.09/4.15 4.06/4.07
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# OFB 5.42/5.42 4.64/4.64 4.44/4.44 4.39/4.39 4.38/4.38
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# CFB 5.73/5.85 5.56/5.62 5.48/5.56 5.47/5.55 5.47/5.55
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#
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# ECB, CTR, CBC and CCM results are free from EVP overhead. This means
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# that otherwise used 'openssl speed -evp aes-128-??? -engine aesni
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# [-decrypt]' will exhibit 10-15% worse results for smaller blocks.
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# The results were collected with specially crafted speed.c benchmark
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# in order to compare them with results reported in "Intel Advanced
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# Encryption Standard (AES) New Instruction Set" White Paper Revision
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# 3.0 dated May 2010. All above results are consistently better. This
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# module also provides better performance for block sizes smaller than
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# 128 bytes in points *not* represented in the above table.
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#
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# Looking at the results for 8-KB buffer.
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#
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# CFB and OFB results are far from the limit, because implementation
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# uses "generic" CRYPTO_[c|o]fb128_encrypt interfaces relying on
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# single-block aesni_encrypt, which is not the most optimal way to go.
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# CBC encrypt result is unexpectedly high and there is no documented
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# explanation for it. Seemingly there is a small penalty for feeding
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# the result back to AES unit the way it's done in CBC mode. There is
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# nothing one can do and the result appears optimal. CCM result is
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# identical to CBC, because CBC-MAC is essentially CBC encrypt without
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# saving output. CCM CTR "stays invisible," because it's neatly
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# interleaved wih CBC-MAC. This provides ~30% improvement over
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# "straghtforward" CCM implementation with CTR and CBC-MAC performed
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# disjointly. Parallelizable modes practically achieve the theoretical
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# limit.
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#
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# Looking at how results vary with buffer size.
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#
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# Curves are practically saturated at 1-KB buffer size. In most cases
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# "256-byte" performance is >95%, and "64-byte" is ~90% of "8-KB" one.
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# CTR curve doesn't follow this pattern and is "slowest" changing one
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# with "256-byte" result being 87% of "8-KB." This is because overhead
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# in CTR mode is most computationally intensive. Small-block CCM
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# decrypt is slower than encrypt, because first CTR and last CBC-MAC
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# iterations can't be interleaved.
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#
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# Results for 192- and 256-bit keys.
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#
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# EVP-free results were observed to scale perfectly with number of
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# rounds for larger block sizes, i.e. 192-bit result being 10/12 times
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# lower and 256-bit one - 10/14. Well, in CBC encrypt case differences
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# are a tad smaller, because the above mentioned penalty biases all
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# results by same constant value. In similar way function call
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# overhead affects small-block performance, as well as OFB and CFB
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# results. Differences are not large, most common coefficients are
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# 10/11.7 and 10/13.4 (as opposite to 10/12.0 and 10/14.0), but one
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# observe even 10/11.2 and 10/12.4 (CTR, OFB, CFB)...
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# January 2011
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#
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# While Westmere processor features 6 cycles latency for aes[enc|dec]
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# instructions, which can be scheduled every second cycle, Sandy
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# Bridge spends 8 cycles per instruction, but it can schedule them
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# every cycle. This means that code targeting Westmere would perform
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# suboptimally on Sandy Bridge. Therefore this update.
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#
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# In addition, non-parallelizable CBC encrypt (as well as CCM) is
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# optimized. Relative improvement might appear modest, 8% on Westmere,
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# but in absolute terms it's 3.77 cycles per byte encrypted with
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# 128-bit key on Westmere, and 5.07 - on Sandy Bridge. These numbers
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# should be compared to asymptotic limits of 3.75 for Westmere and
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# 5.00 for Sandy Bridge. Actually, the fact that they get this close
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# to asymptotic limits is quite amazing. Indeed, the limit is
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# calculated as latency times number of rounds, 10 for 128-bit key,
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# and divided by 16, the number of bytes in block, or in other words
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# it accounts *solely* for aesenc instructions. But there are extra
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# instructions, and numbers so close to the asymptotic limits mean
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# that it's as if it takes as little as *one* additional cycle to
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# execute all of them. How is it possible? It is possible thanks to
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# out-of-order execution logic, which manages to overlap post-
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# processing of previous block, things like saving the output, with
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# actual encryption of current block, as well as pre-processing of
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# current block, things like fetching input and xor-ing it with
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# 0-round element of the key schedule, with actual encryption of
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# previous block. Keep this in mind...
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#
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# For parallelizable modes, such as ECB, CBC decrypt, CTR, higher
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# performance is achieved by interleaving instructions working on
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# independent blocks. In which case asymptotic limit for such modes
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# can be obtained by dividing above mentioned numbers by AES
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# instructions' interleave factor. Westmere can execute at most 3
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# instructions at a time, meaning that optimal interleave factor is 3,
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# and that's where the "magic" number of 1.25 come from. "Optimal
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# interleave factor" means that increase of interleave factor does
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# not improve performance. The formula has proven to reflect reality
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# pretty well on Westmere... Sandy Bridge on the other hand can
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# execute up to 8 AES instructions at a time, so how does varying
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# interleave factor affect the performance? Here is table for ECB
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# (numbers are cycles per byte processed with 128-bit key):
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#
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# instruction interleave factor 3x 6x 8x
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# theoretical asymptotic limit 1.67 0.83 0.625
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# measured performance for 8KB block 1.05 0.86 0.84
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#
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# "as if" interleave factor 4.7x 5.8x 6.0x
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#
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# Further data for other parallelizable modes:
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#
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# CBC decrypt 1.16 0.93 0.74
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# CTR 1.14 0.91 0.74
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#
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# Well, given 3x column it's probably inappropriate to call the limit
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# asymptotic, if it can be surpassed, isn't it? What happens there?
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# Rewind to CBC paragraph for the answer. Yes, out-of-order execution
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# magic is responsible for this. Processor overlaps not only the
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# additional instructions with AES ones, but even AES instuctions
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# processing adjacent triplets of independent blocks. In the 6x case
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# additional instructions still claim disproportionally small amount
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# of additional cycles, but in 8x case number of instructions must be
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# a tad too high for out-of-order logic to cope with, and AES unit
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# remains underutilized... As you can see 8x interleave is hardly
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# justifiable, so there no need to feel bad that 32-bit aesni-x86.pl
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# utilizies 6x interleave because of limited register bank capacity.
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#
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# Higher interleave factors do have negative impact on Westmere
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# performance. While for ECB mode it's negligible ~1.5%, other
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# parallelizables perform ~5% worse, which is outweighed by ~25%
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# improvement on Sandy Bridge. To balance regression on Westmere
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# CTR mode was implemented with 6x aesenc interleave factor.
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# April 2011
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#
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# Add aesni_xts_[en|de]crypt. Westmere spends 1.25 cycles processing
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# one byte out of 8KB with 128-bit key, Sandy Bridge - 0.90. Just like
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# in CTR mode AES instruction interleave factor was chosen to be 6x.
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######################################################################
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# Current large-block performance in cycles per byte processed with
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# 128-bit key (less is better).
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#
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# CBC en-/decrypt CTR XTS ECB
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# Westmere 3.77/1.25 1.25 1.25 1.26
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# * Bridge 5.07/0.74 0.75 0.90 0.85
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# Haswell 4.44/0.63 0.63 0.73 0.63
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# Silvermont 5.75/3.54 3.56 4.12 3.87(*)
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# Bulldozer 5.77/0.70 0.72 0.90 0.70
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#
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# (*) Atom Silvermont ECB result is suboptimal because of penalties
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# incurred by operations on %xmm8-15. As ECB is not considered
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# critical, nothing was done to mitigate the problem.
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$PREFIX="aesni"; # if $PREFIX is set to "AES", the script
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# generates drop-in replacement for
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# crypto/aes/asm/aes-x86_64.pl:-)
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$flavour = shift;
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$output = shift;
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if ($flavour =~ /\./) { $output = $flavour; undef $flavour; }
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$win64=0; $win64=1 if ($flavour =~ /[nm]asm|mingw64/ || $output =~ /\.asm$/);
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$0 =~ m/(.*[\/\\])[^\/\\]+$/; $dir=$1;
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( $xlate="${dir}x86_64-xlate.pl" and -f $xlate ) or
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( $xlate="${dir}../../perlasm/x86_64-xlate.pl" and -f $xlate) or
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die "can't locate x86_64-xlate.pl";
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open OUT,"| \"$^X\" $xlate $flavour $output";
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*STDOUT=*OUT;
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$movkey = $PREFIX eq "aesni" ? "movups" : "movups";
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@_4args=$win64? ("%rcx","%rdx","%r8", "%r9") : # Win64 order
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("%rdi","%rsi","%rdx","%rcx"); # Unix order
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$code=".text\n";
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$code.=".extern OPENSSL_ia32cap_P\n";
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$rounds="%eax"; # input to and changed by aesni_[en|de]cryptN !!!
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# this is natural Unix argument order for public $PREFIX_[ecb|cbc]_encrypt ...
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$inp="%rdi";
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$out="%rsi";
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$len="%rdx";
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$key="%rcx"; # input to and changed by aesni_[en|de]cryptN !!!
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$ivp="%r8"; # cbc, ctr, ...
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$rnds_="%r10d"; # backup copy for $rounds
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$key_="%r11"; # backup copy for $key
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# %xmm register layout
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$rndkey0="%xmm0"; $rndkey1="%xmm1";
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$inout0="%xmm2"; $inout1="%xmm3";
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$inout2="%xmm4"; $inout3="%xmm5";
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$inout4="%xmm6"; $inout5="%xmm7";
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$inout6="%xmm8"; $inout7="%xmm9";
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$in2="%xmm6"; $in1="%xmm7"; # used in CBC decrypt, CTR, ...
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$in0="%xmm8"; $iv="%xmm9";
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# Inline version of internal aesni_[en|de]crypt1.
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#
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# Why folded loop? Because aes[enc|dec] is slow enough to accommodate
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# cycles which take care of loop variables...
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{ my $sn;
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sub aesni_generate1 {
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my ($p,$key,$rounds,$inout,$ivec)=@_; $inout=$inout0 if (!defined($inout));
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++$sn;
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$code.=<<___;
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$movkey ($key),$rndkey0
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$movkey 16($key),$rndkey1
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___
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$code.=<<___ if (defined($ivec));
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xorps $rndkey0,$ivec
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lea 32($key),$key
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xorps $ivec,$inout
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___
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$code.=<<___ if (!defined($ivec));
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lea 32($key),$key
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xorps $rndkey0,$inout
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___
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$code.=<<___;
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.Loop_${p}1_$sn:
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aes${p} $rndkey1,$inout
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dec $rounds
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$movkey ($key),$rndkey1
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lea 16($key),$key
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jnz .Loop_${p}1_$sn # loop body is 16 bytes
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aes${p}last $rndkey1,$inout
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___
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}}
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# void $PREFIX_[en|de]crypt (const void *inp,void *out,const AES_KEY *key);
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#
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{ my ($inp,$out,$key) = @_4args;
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$code.=<<___;
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.globl ${PREFIX}_encrypt
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.type ${PREFIX}_encrypt,\@abi-omnipotent
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.align 16
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${PREFIX}_encrypt:
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movups ($inp),$inout0 # load input
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mov 240($key),$rounds # key->rounds
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___
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&aesni_generate1("enc",$key,$rounds);
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$code.=<<___;
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pxor $rndkey0,$rndkey0 # clear register bank
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pxor $rndkey1,$rndkey1
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movups $inout0,($out) # output
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pxor $inout0,$inout0
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ret
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.size ${PREFIX}_encrypt,.-${PREFIX}_encrypt
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.globl ${PREFIX}_decrypt
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.type ${PREFIX}_decrypt,\@abi-omnipotent
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.align 16
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${PREFIX}_decrypt:
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movups ($inp),$inout0 # load input
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mov 240($key),$rounds # key->rounds
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___
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&aesni_generate1("dec",$key,$rounds);
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$code.=<<___;
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pxor $rndkey0,$rndkey0 # clear register bank
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pxor $rndkey1,$rndkey1
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movups $inout0,($out) # output
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pxor $inout0,$inout0
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ret
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.size ${PREFIX}_decrypt, .-${PREFIX}_decrypt
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___
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}
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# _aesni_[en|de]cryptN are private interfaces, N denotes interleave
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# factor. Why 3x subroutine were originally used in loops? Even though
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# aes[enc|dec] latency was originally 6, it could be scheduled only
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# every *2nd* cycle. Thus 3x interleave was the one providing optimal
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# utilization, i.e. when subroutine's throughput is virtually same as
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# of non-interleaved subroutine [for number of input blocks up to 3].
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# This is why it originally made no sense to implement 2x subroutine.
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# But times change and it became appropriate to spend extra 192 bytes
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# on 2x subroutine on Atom Silvermont account. For processors that
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# can schedule aes[enc|dec] every cycle optimal interleave factor
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# equals to corresponding instructions latency. 8x is optimal for
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# * Bridge and "super-optimal" for other Intel CPUs...
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sub aesni_generate2 {
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my $dir=shift;
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# As already mentioned it takes in $key and $rounds, which are *not*
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# preserved. $inout[0-1] is cipher/clear text...
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$code.=<<___;
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.type _aesni_${dir}rypt2,\@abi-omnipotent
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.align 16
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_aesni_${dir}rypt2:
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$movkey ($key),$rndkey0
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shl \$4,$rounds
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$movkey 16($key),$rndkey1
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xorps $rndkey0,$inout0
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xorps $rndkey0,$inout1
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$movkey 32($key),$rndkey0
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lea 32($key,$rounds),$key
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neg %rax # $rounds
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add \$16,%rax
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.L${dir}_loop2:
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aes${dir} $rndkey1,$inout0
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aes${dir} $rndkey1,$inout1
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$movkey ($key,%rax),$rndkey1
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add \$32,%rax
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aes${dir} $rndkey0,$inout0
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aes${dir} $rndkey0,$inout1
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$movkey -16($key,%rax),$rndkey0
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jnz .L${dir}_loop2
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aes${dir} $rndkey1,$inout0
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aes${dir} $rndkey1,$inout1
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aes${dir}last $rndkey0,$inout0
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aes${dir}last $rndkey0,$inout1
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ret
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.size _aesni_${dir}rypt2,.-_aesni_${dir}rypt2
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___
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}
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sub aesni_generate3 {
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my $dir=shift;
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# As already mentioned it takes in $key and $rounds, which are *not*
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# preserved. $inout[0-2] is cipher/clear text...
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$code.=<<___;
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.type _aesni_${dir}rypt3,\@abi-omnipotent
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.align 16
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_aesni_${dir}rypt3:
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$movkey ($key),$rndkey0
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shl \$4,$rounds
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$movkey 16($key),$rndkey1
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xorps $rndkey0,$inout0
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xorps $rndkey0,$inout1
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xorps $rndkey0,$inout2
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$movkey 32($key),$rndkey0
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lea 32($key,$rounds),$key
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neg %rax # $rounds
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add \$16,%rax
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.L${dir}_loop3:
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aes${dir} $rndkey1,$inout0
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aes${dir} $rndkey1,$inout1
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aes${dir} $rndkey1,$inout2
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$movkey ($key,%rax),$rndkey1
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add \$32,%rax
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aes${dir} $rndkey0,$inout0
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aes${dir} $rndkey0,$inout1
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aes${dir} $rndkey0,$inout2
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$movkey -16($key,%rax),$rndkey0
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jnz .L${dir}_loop3
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aes${dir} $rndkey1,$inout0
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aes${dir} $rndkey1,$inout1
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aes${dir} $rndkey1,$inout2
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aes${dir}last $rndkey0,$inout0
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aes${dir}last $rndkey0,$inout1
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aes${dir}last $rndkey0,$inout2
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ret
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.size _aesni_${dir}rypt3,.-_aesni_${dir}rypt3
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___
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}
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# 4x interleave is implemented to improve small block performance,
|
||
# most notably [and naturally] 4 block by ~30%. One can argue that one
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# should have implemented 5x as well, but improvement would be <20%,
|
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# so it's not worth it...
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sub aesni_generate4 {
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my $dir=shift;
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# As already mentioned it takes in $key and $rounds, which are *not*
|
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# preserved. $inout[0-3] is cipher/clear text...
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$code.=<<___;
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.type _aesni_${dir}rypt4,\@abi-omnipotent
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.align 16
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_aesni_${dir}rypt4:
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$movkey ($key),$rndkey0
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shl \$4,$rounds
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$movkey 16($key),$rndkey1
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xorps $rndkey0,$inout0
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xorps $rndkey0,$inout1
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xorps $rndkey0,$inout2
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xorps $rndkey0,$inout3
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$movkey 32($key),$rndkey0
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lea 32($key,$rounds),$key
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neg %rax # $rounds
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.byte 0x0f,0x1f,0x00
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add \$16,%rax
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|
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.L${dir}_loop4:
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aes${dir} $rndkey1,$inout0
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aes${dir} $rndkey1,$inout1
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aes${dir} $rndkey1,$inout2
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aes${dir} $rndkey1,$inout3
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$movkey ($key,%rax),$rndkey1
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add \$32,%rax
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aes${dir} $rndkey0,$inout0
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aes${dir} $rndkey0,$inout1
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aes${dir} $rndkey0,$inout2
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aes${dir} $rndkey0,$inout3
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$movkey -16($key,%rax),$rndkey0
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jnz .L${dir}_loop4
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|
||
aes${dir} $rndkey1,$inout0
|
||
aes${dir} $rndkey1,$inout1
|
||
aes${dir} $rndkey1,$inout2
|
||
aes${dir} $rndkey1,$inout3
|
||
aes${dir}last $rndkey0,$inout0
|
||
aes${dir}last $rndkey0,$inout1
|
||
aes${dir}last $rndkey0,$inout2
|
||
aes${dir}last $rndkey0,$inout3
|
||
ret
|
||
.size _aesni_${dir}rypt4,.-_aesni_${dir}rypt4
|
||
___
|
||
}
|
||
sub aesni_generate6 {
|
||
my $dir=shift;
|
||
# As already mentioned it takes in $key and $rounds, which are *not*
|
||
# preserved. $inout[0-5] is cipher/clear text...
|
||
$code.=<<___;
|
||
.type _aesni_${dir}rypt6,\@abi-omnipotent
|
||
.align 16
|
||
_aesni_${dir}rypt6:
|
||
$movkey ($key),$rndkey0
|
||
shl \$4,$rounds
|
||
$movkey 16($key),$rndkey1
|
||
xorps $rndkey0,$inout0
|
||
pxor $rndkey0,$inout1
|
||
pxor $rndkey0,$inout2
|
||
aes${dir} $rndkey1,$inout0
|
||
lea 32($key,$rounds),$key
|
||
neg %rax # $rounds
|
||
aes${dir} $rndkey1,$inout1
|
||
pxor $rndkey0,$inout3
|
||
pxor $rndkey0,$inout4
|
||
aes${dir} $rndkey1,$inout2
|
||
pxor $rndkey0,$inout5
|
||
$movkey ($key,%rax),$rndkey0
|
||
add \$16,%rax
|
||
jmp .L${dir}_loop6_enter
|
||
.align 16
|
||
.L${dir}_loop6:
|
||
aes${dir} $rndkey1,$inout0
|
||
aes${dir} $rndkey1,$inout1
|
||
aes${dir} $rndkey1,$inout2
|
||
.L${dir}_loop6_enter:
|
||
aes${dir} $rndkey1,$inout3
|
||
aes${dir} $rndkey1,$inout4
|
||
aes${dir} $rndkey1,$inout5
|
||
$movkey ($key,%rax),$rndkey1
|
||
add \$32,%rax
|
||
aes${dir} $rndkey0,$inout0
|
||
aes${dir} $rndkey0,$inout1
|
||
aes${dir} $rndkey0,$inout2
|
||
aes${dir} $rndkey0,$inout3
|
||
aes${dir} $rndkey0,$inout4
|
||
aes${dir} $rndkey0,$inout5
|
||
$movkey -16($key,%rax),$rndkey0
|
||
jnz .L${dir}_loop6
|
||
|
||
aes${dir} $rndkey1,$inout0
|
||
aes${dir} $rndkey1,$inout1
|
||
aes${dir} $rndkey1,$inout2
|
||
aes${dir} $rndkey1,$inout3
|
||
aes${dir} $rndkey1,$inout4
|
||
aes${dir} $rndkey1,$inout5
|
||
aes${dir}last $rndkey0,$inout0
|
||
aes${dir}last $rndkey0,$inout1
|
||
aes${dir}last $rndkey0,$inout2
|
||
aes${dir}last $rndkey0,$inout3
|
||
aes${dir}last $rndkey0,$inout4
|
||
aes${dir}last $rndkey0,$inout5
|
||
ret
|
||
.size _aesni_${dir}rypt6,.-_aesni_${dir}rypt6
|
||
___
|
||
}
|
||
sub aesni_generate8 {
|
||
my $dir=shift;
|
||
# As already mentioned it takes in $key and $rounds, which are *not*
|
||
# preserved. $inout[0-7] is cipher/clear text...
|
||
$code.=<<___;
|
||
.type _aesni_${dir}rypt8,\@abi-omnipotent
|
||
.align 16
|
||
_aesni_${dir}rypt8:
|
||
$movkey ($key),$rndkey0
|
||
shl \$4,$rounds
|
||
$movkey 16($key),$rndkey1
|
||
xorps $rndkey0,$inout0
|
||
xorps $rndkey0,$inout1
|
||
pxor $rndkey0,$inout2
|
||
pxor $rndkey0,$inout3
|
||
pxor $rndkey0,$inout4
|
||
lea 32($key,$rounds),$key
|
||
neg %rax # $rounds
|
||
aes${dir} $rndkey1,$inout0
|
||
pxor $rndkey0,$inout5
|
||
pxor $rndkey0,$inout6
|
||
aes${dir} $rndkey1,$inout1
|
||
pxor $rndkey0,$inout7
|
||
$movkey ($key,%rax),$rndkey0
|
||
add \$16,%rax
|
||
jmp .L${dir}_loop8_inner
|
||
.align 16
|
||
.L${dir}_loop8:
|
||
aes${dir} $rndkey1,$inout0
|
||
aes${dir} $rndkey1,$inout1
|
||
.L${dir}_loop8_inner:
|
||
aes${dir} $rndkey1,$inout2
|
||
aes${dir} $rndkey1,$inout3
|
||
aes${dir} $rndkey1,$inout4
|
||
aes${dir} $rndkey1,$inout5
|
||
aes${dir} $rndkey1,$inout6
|
||
aes${dir} $rndkey1,$inout7
|
||
.L${dir}_loop8_enter:
|
||
$movkey ($key,%rax),$rndkey1
|
||
add \$32,%rax
|
||
aes${dir} $rndkey0,$inout0
|
||
aes${dir} $rndkey0,$inout1
|
||
aes${dir} $rndkey0,$inout2
|
||
aes${dir} $rndkey0,$inout3
|
||
aes${dir} $rndkey0,$inout4
|
||
aes${dir} $rndkey0,$inout5
|
||
aes${dir} $rndkey0,$inout6
|
||
aes${dir} $rndkey0,$inout7
|
||
$movkey -16($key,%rax),$rndkey0
|
||
jnz .L${dir}_loop8
|
||
|
||
aes${dir} $rndkey1,$inout0
|
||
aes${dir} $rndkey1,$inout1
|
||
aes${dir} $rndkey1,$inout2
|
||
aes${dir} $rndkey1,$inout3
|
||
aes${dir} $rndkey1,$inout4
|
||
aes${dir} $rndkey1,$inout5
|
||
aes${dir} $rndkey1,$inout6
|
||
aes${dir} $rndkey1,$inout7
|
||
aes${dir}last $rndkey0,$inout0
|
||
aes${dir}last $rndkey0,$inout1
|
||
aes${dir}last $rndkey0,$inout2
|
||
aes${dir}last $rndkey0,$inout3
|
||
aes${dir}last $rndkey0,$inout4
|
||
aes${dir}last $rndkey0,$inout5
|
||
aes${dir}last $rndkey0,$inout6
|
||
aes${dir}last $rndkey0,$inout7
|
||
ret
|
||
.size _aesni_${dir}rypt8,.-_aesni_${dir}rypt8
|
||
___
|
||
}
|
||
&aesni_generate2("enc") if ($PREFIX eq "aesni");
|
||
&aesni_generate2("dec");
|
||
&aesni_generate3("enc") if ($PREFIX eq "aesni");
|
||
&aesni_generate3("dec");
|
||
&aesni_generate4("enc") if ($PREFIX eq "aesni");
|
||
&aesni_generate4("dec");
|
||
&aesni_generate6("enc") if ($PREFIX eq "aesni");
|
||
&aesni_generate6("dec");
|
||
&aesni_generate8("enc") if ($PREFIX eq "aesni");
|
||
&aesni_generate8("dec");
|
||
|
||
if ($PREFIX eq "aesni") {
|
||
########################################################################
|
||
# void aesni_ecb_encrypt (const void *in, void *out,
|
||
# size_t length, const AES_KEY *key,
|
||
# int enc);
|
||
$code.=<<___;
|
||
.globl aesni_ecb_encrypt
|
||
.type aesni_ecb_encrypt,\@function,5
|
||
.align 16
|
||
aesni_ecb_encrypt:
|
||
___
|
||
$code.=<<___ if ($win64);
|
||
lea -0x58(%rsp),%rsp
|
||
movaps %xmm6,(%rsp) # offload $inout4..7
|
||
movaps %xmm7,0x10(%rsp)
|
||
movaps %xmm8,0x20(%rsp)
|
||
movaps %xmm9,0x30(%rsp)
|
||
.Lecb_enc_body:
|
||
___
|
||
$code.=<<___;
|
||
and \$-16,$len # if ($len<16)
|
||
jz .Lecb_ret # return
|
||
|
||
mov 240($key),$rounds # key->rounds
|
||
$movkey ($key),$rndkey0
|
||
mov $key,$key_ # backup $key
|
||
mov $rounds,$rnds_ # backup $rounds
|
||
test %r8d,%r8d # 5th argument
|
||
jz .Lecb_decrypt
|
||
#--------------------------- ECB ENCRYPT ------------------------------#
|
||
cmp \$0x80,$len # if ($len<8*16)
|
||
jb .Lecb_enc_tail # short input
|
||
|
||
movdqu ($inp),$inout0 # load 8 input blocks
|
||
movdqu 0x10($inp),$inout1
|
||
movdqu 0x20($inp),$inout2
|
||
movdqu 0x30($inp),$inout3
|
||
movdqu 0x40($inp),$inout4
|
||
movdqu 0x50($inp),$inout5
|
||
movdqu 0x60($inp),$inout6
|
||
movdqu 0x70($inp),$inout7
|
||
lea 0x80($inp),$inp # $inp+=8*16
|
||
sub \$0x80,$len # $len-=8*16 (can be zero)
|
||
jmp .Lecb_enc_loop8_enter
|
||
.align 16
|
||
.Lecb_enc_loop8:
|
||
movups $inout0,($out) # store 8 output blocks
|
||
mov $key_,$key # restore $key
|
||
movdqu ($inp),$inout0 # load 8 input blocks
|
||
mov $rnds_,$rounds # restore $rounds
|
||
movups $inout1,0x10($out)
|
||
movdqu 0x10($inp),$inout1
|
||
movups $inout2,0x20($out)
|
||
movdqu 0x20($inp),$inout2
|
||
movups $inout3,0x30($out)
|
||
movdqu 0x30($inp),$inout3
|
||
movups $inout4,0x40($out)
|
||
movdqu 0x40($inp),$inout4
|
||
movups $inout5,0x50($out)
|
||
movdqu 0x50($inp),$inout5
|
||
movups $inout6,0x60($out)
|
||
movdqu 0x60($inp),$inout6
|
||
movups $inout7,0x70($out)
|
||
lea 0x80($out),$out # $out+=8*16
|
||
movdqu 0x70($inp),$inout7
|
||
lea 0x80($inp),$inp # $inp+=8*16
|
||
.Lecb_enc_loop8_enter:
|
||
|
||
call _aesni_encrypt8
|
||
|
||
sub \$0x80,$len
|
||
jnc .Lecb_enc_loop8 # loop if $len-=8*16 didn't borrow
|
||
|
||
movups $inout0,($out) # store 8 output blocks
|
||
mov $key_,$key # restore $key
|
||
movups $inout1,0x10($out)
|
||
mov $rnds_,$rounds # restore $rounds
|
||
movups $inout2,0x20($out)
|
||
movups $inout3,0x30($out)
|
||
movups $inout4,0x40($out)
|
||
movups $inout5,0x50($out)
|
||
movups $inout6,0x60($out)
|
||
movups $inout7,0x70($out)
|
||
lea 0x80($out),$out # $out+=8*16
|
||
add \$0x80,$len # restore real remaining $len
|
||
jz .Lecb_ret # done if ($len==0)
|
||
|
||
.Lecb_enc_tail: # $len is less than 8*16
|
||
movups ($inp),$inout0
|
||
cmp \$0x20,$len
|
||
jb .Lecb_enc_one
|
||
movups 0x10($inp),$inout1
|
||
je .Lecb_enc_two
|
||
movups 0x20($inp),$inout2
|
||
cmp \$0x40,$len
|
||
jb .Lecb_enc_three
|
||
movups 0x30($inp),$inout3
|
||
je .Lecb_enc_four
|
||
movups 0x40($inp),$inout4
|
||
cmp \$0x60,$len
|
||
jb .Lecb_enc_five
|
||
movups 0x50($inp),$inout5
|
||
je .Lecb_enc_six
|
||
movdqu 0x60($inp),$inout6
|
||
xorps $inout7,$inout7
|
||
call _aesni_encrypt8
|
||
movups $inout0,($out) # store 7 output blocks
|
||
movups $inout1,0x10($out)
|
||
movups $inout2,0x20($out)
|
||
movups $inout3,0x30($out)
|
||
movups $inout4,0x40($out)
|
||
movups $inout5,0x50($out)
|
||
movups $inout6,0x60($out)
|
||
jmp .Lecb_ret
|
||
.align 16
|
||
.Lecb_enc_one:
|
||
___
|
||
&aesni_generate1("enc",$key,$rounds);
|
||
$code.=<<___;
|
||
movups $inout0,($out) # store one output block
|
||
jmp .Lecb_ret
|
||
.align 16
|
||
.Lecb_enc_two:
|
||
call _aesni_encrypt2
|
||
movups $inout0,($out) # store 2 output blocks
|
||
movups $inout1,0x10($out)
|
||
jmp .Lecb_ret
|
||
.align 16
|
||
.Lecb_enc_three:
|
||
call _aesni_encrypt3
|
||
movups $inout0,($out) # store 3 output blocks
|
||
movups $inout1,0x10($out)
|
||
movups $inout2,0x20($out)
|
||
jmp .Lecb_ret
|
||
.align 16
|
||
.Lecb_enc_four:
|
||
call _aesni_encrypt4
|
||
movups $inout0,($out) # store 4 output blocks
|
||
movups $inout1,0x10($out)
|
||
movups $inout2,0x20($out)
|
||
movups $inout3,0x30($out)
|
||
jmp .Lecb_ret
|
||
.align 16
|
||
.Lecb_enc_five:
|
||
xorps $inout5,$inout5
|
||
call _aesni_encrypt6
|
||
movups $inout0,($out) # store 5 output blocks
|
||
movups $inout1,0x10($out)
|
||
movups $inout2,0x20($out)
|
||
movups $inout3,0x30($out)
|
||
movups $inout4,0x40($out)
|
||
jmp .Lecb_ret
|
||
.align 16
|
||
.Lecb_enc_six:
|
||
call _aesni_encrypt6
|
||
movups $inout0,($out) # store 6 output blocks
|
||
movups $inout1,0x10($out)
|
||
movups $inout2,0x20($out)
|
||
movups $inout3,0x30($out)
|
||
movups $inout4,0x40($out)
|
||
movups $inout5,0x50($out)
|
||
jmp .Lecb_ret
|
||
#--------------------------- ECB DECRYPT ------------------------------#
|
||
.align 16
|
||
.Lecb_decrypt:
|
||
cmp \$0x80,$len # if ($len<8*16)
|
||
jb .Lecb_dec_tail # short input
|
||
|
||
movdqu ($inp),$inout0 # load 8 input blocks
|
||
movdqu 0x10($inp),$inout1
|
||
movdqu 0x20($inp),$inout2
|
||
movdqu 0x30($inp),$inout3
|
||
movdqu 0x40($inp),$inout4
|
||
movdqu 0x50($inp),$inout5
|
||
movdqu 0x60($inp),$inout6
|
||
movdqu 0x70($inp),$inout7
|
||
lea 0x80($inp),$inp # $inp+=8*16
|
||
sub \$0x80,$len # $len-=8*16 (can be zero)
|
||
jmp .Lecb_dec_loop8_enter
|
||
.align 16
|
||
.Lecb_dec_loop8:
|
||
movups $inout0,($out) # store 8 output blocks
|
||
mov $key_,$key # restore $key
|
||
movdqu ($inp),$inout0 # load 8 input blocks
|
||
mov $rnds_,$rounds # restore $rounds
|
||
movups $inout1,0x10($out)
|
||
movdqu 0x10($inp),$inout1
|
||
movups $inout2,0x20($out)
|
||
movdqu 0x20($inp),$inout2
|
||
movups $inout3,0x30($out)
|
||
movdqu 0x30($inp),$inout3
|
||
movups $inout4,0x40($out)
|
||
movdqu 0x40($inp),$inout4
|
||
movups $inout5,0x50($out)
|
||
movdqu 0x50($inp),$inout5
|
||
movups $inout6,0x60($out)
|
||
movdqu 0x60($inp),$inout6
|
||
movups $inout7,0x70($out)
|
||
lea 0x80($out),$out # $out+=8*16
|
||
movdqu 0x70($inp),$inout7
|
||
lea 0x80($inp),$inp # $inp+=8*16
|
||
.Lecb_dec_loop8_enter:
|
||
|
||
call _aesni_decrypt8
|
||
|
||
$movkey ($key_),$rndkey0
|
||
sub \$0x80,$len
|
||
jnc .Lecb_dec_loop8 # loop if $len-=8*16 didn't borrow
|
||
|
||
movups $inout0,($out) # store 8 output blocks
|
||
pxor $inout0,$inout0 # clear register bank
|
||
mov $key_,$key # restore $key
|
||
movups $inout1,0x10($out)
|
||
pxor $inout1,$inout1
|
||
mov $rnds_,$rounds # restore $rounds
|
||
movups $inout2,0x20($out)
|
||
pxor $inout2,$inout2
|
||
movups $inout3,0x30($out)
|
||
pxor $inout3,$inout3
|
||
movups $inout4,0x40($out)
|
||
pxor $inout4,$inout4
|
||
movups $inout5,0x50($out)
|
||
pxor $inout5,$inout5
|
||
movups $inout6,0x60($out)
|
||
pxor $inout6,$inout6
|
||
movups $inout7,0x70($out)
|
||
pxor $inout7,$inout7
|
||
lea 0x80($out),$out # $out+=8*16
|
||
add \$0x80,$len # restore real remaining $len
|
||
jz .Lecb_ret # done if ($len==0)
|
||
|
||
.Lecb_dec_tail:
|
||
movups ($inp),$inout0
|
||
cmp \$0x20,$len
|
||
jb .Lecb_dec_one
|
||
movups 0x10($inp),$inout1
|
||
je .Lecb_dec_two
|
||
movups 0x20($inp),$inout2
|
||
cmp \$0x40,$len
|
||
jb .Lecb_dec_three
|
||
movups 0x30($inp),$inout3
|
||
je .Lecb_dec_four
|
||
movups 0x40($inp),$inout4
|
||
cmp \$0x60,$len
|
||
jb .Lecb_dec_five
|
||
movups 0x50($inp),$inout5
|
||
je .Lecb_dec_six
|
||
movups 0x60($inp),$inout6
|
||
$movkey ($key),$rndkey0
|
||
xorps $inout7,$inout7
|
||
call _aesni_decrypt8
|
||
movups $inout0,($out) # store 7 output blocks
|
||
pxor $inout0,$inout0 # clear register bank
|
||
movups $inout1,0x10($out)
|
||
pxor $inout1,$inout1
|
||
movups $inout2,0x20($out)
|
||
pxor $inout2,$inout2
|
||
movups $inout3,0x30($out)
|
||
pxor $inout3,$inout3
|
||
movups $inout4,0x40($out)
|
||
pxor $inout4,$inout4
|
||
movups $inout5,0x50($out)
|
||
pxor $inout5,$inout5
|
||
movups $inout6,0x60($out)
|
||
pxor $inout6,$inout6
|
||
pxor $inout7,$inout7
|
||
jmp .Lecb_ret
|
||
.align 16
|
||
.Lecb_dec_one:
|
||
___
|
||
&aesni_generate1("dec",$key,$rounds);
|
||
$code.=<<___;
|
||
movups $inout0,($out) # store one output block
|
||
pxor $inout0,$inout0 # clear register bank
|
||
jmp .Lecb_ret
|
||
.align 16
|
||
.Lecb_dec_two:
|
||
call _aesni_decrypt2
|
||
movups $inout0,($out) # store 2 output blocks
|
||
pxor $inout0,$inout0 # clear register bank
|
||
movups $inout1,0x10($out)
|
||
pxor $inout1,$inout1
|
||
jmp .Lecb_ret
|
||
.align 16
|
||
.Lecb_dec_three:
|
||
call _aesni_decrypt3
|
||
movups $inout0,($out) # store 3 output blocks
|
||
pxor $inout0,$inout0 # clear register bank
|
||
movups $inout1,0x10($out)
|
||
pxor $inout1,$inout1
|
||
movups $inout2,0x20($out)
|
||
pxor $inout2,$inout2
|
||
jmp .Lecb_ret
|
||
.align 16
|
||
.Lecb_dec_four:
|
||
call _aesni_decrypt4
|
||
movups $inout0,($out) # store 4 output blocks
|
||
pxor $inout0,$inout0 # clear register bank
|
||
movups $inout1,0x10($out)
|
||
pxor $inout1,$inout1
|
||
movups $inout2,0x20($out)
|
||
pxor $inout2,$inout2
|
||
movups $inout3,0x30($out)
|
||
pxor $inout3,$inout3
|
||
jmp .Lecb_ret
|
||
.align 16
|
||
.Lecb_dec_five:
|
||
xorps $inout5,$inout5
|
||
call _aesni_decrypt6
|
||
movups $inout0,($out) # store 5 output blocks
|
||
pxor $inout0,$inout0 # clear register bank
|
||
movups $inout1,0x10($out)
|
||
pxor $inout1,$inout1
|
||
movups $inout2,0x20($out)
|
||
pxor $inout2,$inout2
|
||
movups $inout3,0x30($out)
|
||
pxor $inout3,$inout3
|
||
movups $inout4,0x40($out)
|
||
pxor $inout4,$inout4
|
||
pxor $inout5,$inout5
|
||
jmp .Lecb_ret
|
||
.align 16
|
||
.Lecb_dec_six:
|
||
call _aesni_decrypt6
|
||
movups $inout0,($out) # store 6 output blocks
|
||
pxor $inout0,$inout0 # clear register bank
|
||
movups $inout1,0x10($out)
|
||
pxor $inout1,$inout1
|
||
movups $inout2,0x20($out)
|
||
pxor $inout2,$inout2
|
||
movups $inout3,0x30($out)
|
||
pxor $inout3,$inout3
|
||
movups $inout4,0x40($out)
|
||
pxor $inout4,$inout4
|
||
movups $inout5,0x50($out)
|
||
pxor $inout5,$inout5
|
||
|
||
.Lecb_ret:
|
||
xorps $rndkey0,$rndkey0 # %xmm0
|
||
pxor $rndkey1,$rndkey1
|
||
___
|
||
$code.=<<___ if ($win64);
|
||
movaps (%rsp),%xmm6
|
||
movaps %xmm0,(%rsp) # clear stack
|
||
movaps 0x10(%rsp),%xmm7
|
||
movaps %xmm0,0x10(%rsp)
|
||
movaps 0x20(%rsp),%xmm8
|
||
movaps %xmm0,0x20(%rsp)
|
||
movaps 0x30(%rsp),%xmm9
|
||
movaps %xmm0,0x30(%rsp)
|
||
lea 0x58(%rsp),%rsp
|
||
.Lecb_enc_ret:
|
||
___
|
||
$code.=<<___;
|
||
ret
|
||
.size aesni_ecb_encrypt,.-aesni_ecb_encrypt
|
||
___
|
||
|
||
{
|
||
######################################################################
|
||
# void aesni_ccm64_[en|de]crypt_blocks (const void *in, void *out,
|
||
# size_t blocks, const AES_KEY *key,
|
||
# const char *ivec,char *cmac);
|
||
#
|
||
# Handles only complete blocks, operates on 64-bit counter and
|
||
# does not update *ivec! Nor does it finalize CMAC value
|
||
# (see engine/eng_aesni.c for details)
|
||
#
|
||
{
|
||
my $cmac="%r9"; # 6th argument
|
||
|
||
my $increment="%xmm9";
|
||
my $iv="%xmm6";
|
||
my $bswap_mask="%xmm7";
|
||
|
||
$code.=<<___;
|
||
.globl aesni_ccm64_encrypt_blocks
|
||
.type aesni_ccm64_encrypt_blocks,\@function,6
|
||
.align 16
|
||
aesni_ccm64_encrypt_blocks:
|
||
___
|
||
$code.=<<___ if ($win64);
|
||
lea -0x58(%rsp),%rsp
|
||
movaps %xmm6,(%rsp) # $iv
|
||
movaps %xmm7,0x10(%rsp) # $bswap_mask
|
||
movaps %xmm8,0x20(%rsp) # $in0
|
||
movaps %xmm9,0x30(%rsp) # $increment
|
||
.Lccm64_enc_body:
|
||
___
|
||
$code.=<<___;
|
||
mov 240($key),$rounds # key->rounds
|
||
movdqu ($ivp),$iv
|
||
movdqa .Lincrement64(%rip),$increment
|
||
movdqa .Lbswap_mask(%rip),$bswap_mask
|
||
|
||
shl \$4,$rounds
|
||
mov \$16,$rnds_
|
||
lea 0($key),$key_
|
||
movdqu ($cmac),$inout1
|
||
movdqa $iv,$inout0
|
||
lea 32($key,$rounds),$key # end of key schedule
|
||
pshufb $bswap_mask,$iv
|
||
sub %rax,%r10 # twisted $rounds
|
||
jmp .Lccm64_enc_outer
|
||
.align 16
|
||
.Lccm64_enc_outer:
|
||
$movkey ($key_),$rndkey0
|
||
mov %r10,%rax
|
||
movups ($inp),$in0 # load inp
|
||
|
||
xorps $rndkey0,$inout0 # counter
|
||
$movkey 16($key_),$rndkey1
|
||
xorps $in0,$rndkey0
|
||
xorps $rndkey0,$inout1 # cmac^=inp
|
||
$movkey 32($key_),$rndkey0
|
||
|
||
.Lccm64_enc2_loop:
|
||
aesenc $rndkey1,$inout0
|
||
aesenc $rndkey1,$inout1
|
||
$movkey ($key,%rax),$rndkey1
|
||
add \$32,%rax
|
||
aesenc $rndkey0,$inout0
|
||
aesenc $rndkey0,$inout1
|
||
$movkey -16($key,%rax),$rndkey0
|
||
jnz .Lccm64_enc2_loop
|
||
aesenc $rndkey1,$inout0
|
||
aesenc $rndkey1,$inout1
|
||
paddq $increment,$iv
|
||
dec $len # $len-- ($len is in blocks)
|
||
aesenclast $rndkey0,$inout0
|
||
aesenclast $rndkey0,$inout1
|
||
|
||
lea 16($inp),$inp
|
||
xorps $inout0,$in0 # inp ^= E(iv)
|
||
movdqa $iv,$inout0
|
||
movups $in0,($out) # save output
|
||
pshufb $bswap_mask,$inout0
|
||
lea 16($out),$out # $out+=16
|
||
jnz .Lccm64_enc_outer # loop if ($len!=0)
|
||
|
||
pxor $rndkey0,$rndkey0 # clear register bank
|
||
pxor $rndkey1,$rndkey1
|
||
pxor $inout0,$inout0
|
||
movups $inout1,($cmac) # store resulting mac
|
||
pxor $inout1,$inout1
|
||
pxor $in0,$in0
|
||
pxor $iv,$iv
|
||
___
|
||
$code.=<<___ if ($win64);
|
||
movaps (%rsp),%xmm6
|
||
movaps %xmm0,(%rsp) # clear stack
|
||
movaps 0x10(%rsp),%xmm7
|
||
movaps %xmm0,0x10(%rsp)
|
||
movaps 0x20(%rsp),%xmm8
|
||
movaps %xmm0,0x20(%rsp)
|
||
movaps 0x30(%rsp),%xmm9
|
||
movaps %xmm0,0x30(%rsp)
|
||
lea 0x58(%rsp),%rsp
|
||
.Lccm64_enc_ret:
|
||
___
|
||
$code.=<<___;
|
||
ret
|
||
.size aesni_ccm64_encrypt_blocks,.-aesni_ccm64_encrypt_blocks
|
||
___
|
||
######################################################################
|
||
$code.=<<___;
|
||
.globl aesni_ccm64_decrypt_blocks
|
||
.type aesni_ccm64_decrypt_blocks,\@function,6
|
||
.align 16
|
||
aesni_ccm64_decrypt_blocks:
|
||
___
|
||
$code.=<<___ if ($win64);
|
||
lea -0x58(%rsp),%rsp
|
||
movaps %xmm6,(%rsp) # $iv
|
||
movaps %xmm7,0x10(%rsp) # $bswap_mask
|
||
movaps %xmm8,0x20(%rsp) # $in8
|
||
movaps %xmm9,0x30(%rsp) # $increment
|
||
.Lccm64_dec_body:
|
||
___
|
||
$code.=<<___;
|
||
mov 240($key),$rounds # key->rounds
|
||
movups ($ivp),$iv
|
||
movdqu ($cmac),$inout1
|
||
movdqa .Lincrement64(%rip),$increment
|
||
movdqa .Lbswap_mask(%rip),$bswap_mask
|
||
|
||
movaps $iv,$inout0
|
||
mov $rounds,$rnds_
|
||
mov $key,$key_
|
||
pshufb $bswap_mask,$iv
|
||
___
|
||
&aesni_generate1("enc",$key,$rounds);
|
||
$code.=<<___;
|
||
shl \$4,$rnds_
|
||
mov \$16,$rounds
|
||
movups ($inp),$in0 # load inp
|
||
paddq $increment,$iv
|
||
lea 16($inp),$inp # $inp+=16
|
||
sub %r10,%rax # twisted $rounds
|
||
lea 32($key_,$rnds_),$key # end of key schedule
|
||
mov %rax,%r10
|
||
jmp .Lccm64_dec_outer
|
||
.align 16
|
||
.Lccm64_dec_outer:
|
||
xorps $inout0,$in0 # inp ^= E(iv)
|
||
movdqa $iv,$inout0
|
||
movups $in0,($out) # save output
|
||
lea 16($out),$out # $out+=16
|
||
pshufb $bswap_mask,$inout0
|
||
|
||
sub \$1,$len # $len-- ($len is in blocks)
|
||
jz .Lccm64_dec_break # if ($len==0) break
|
||
|
||
$movkey ($key_),$rndkey0
|
||
mov %r10,%rax
|
||
$movkey 16($key_),$rndkey1
|
||
xorps $rndkey0,$in0
|
||
xorps $rndkey0,$inout0
|
||
xorps $in0,$inout1 # cmac^=out
|
||
$movkey 32($key_),$rndkey0
|
||
jmp .Lccm64_dec2_loop
|
||
.align 16
|
||
.Lccm64_dec2_loop:
|
||
aesenc $rndkey1,$inout0
|
||
aesenc $rndkey1,$inout1
|
||
$movkey ($key,%rax),$rndkey1
|
||
add \$32,%rax
|
||
aesenc $rndkey0,$inout0
|
||
aesenc $rndkey0,$inout1
|
||
$movkey -16($key,%rax),$rndkey0
|
||
jnz .Lccm64_dec2_loop
|
||
movups ($inp),$in0 # load input
|
||
paddq $increment,$iv
|
||
aesenc $rndkey1,$inout0
|
||
aesenc $rndkey1,$inout1
|
||
aesenclast $rndkey0,$inout0
|
||
aesenclast $rndkey0,$inout1
|
||
lea 16($inp),$inp # $inp+=16
|
||
jmp .Lccm64_dec_outer
|
||
|
||
.align 16
|
||
.Lccm64_dec_break:
|
||
#xorps $in0,$inout1 # cmac^=out
|
||
mov 240($key_),$rounds
|
||
___
|
||
&aesni_generate1("enc",$key_,$rounds,$inout1,$in0);
|
||
$code.=<<___;
|
||
pxor $rndkey0,$rndkey0 # clear register bank
|
||
pxor $rndkey1,$rndkey1
|
||
pxor $inout0,$inout0
|
||
movups $inout1,($cmac) # store resulting mac
|
||
pxor $inout1,$inout1
|
||
pxor $in0,$in0
|
||
pxor $iv,$iv
|
||
___
|
||
$code.=<<___ if ($win64);
|
||
movaps (%rsp),%xmm6
|
||
movaps %xmm0,(%rsp) # clear stack
|
||
movaps 0x10(%rsp),%xmm7
|
||
movaps %xmm0,0x10(%rsp)
|
||
movaps 0x20(%rsp),%xmm8
|
||
movaps %xmm0,0x20(%rsp)
|
||
movaps 0x30(%rsp),%xmm9
|
||
movaps %xmm0,0x30(%rsp)
|
||
lea 0x58(%rsp),%rsp
|
||
.Lccm64_dec_ret:
|
||
___
|
||
$code.=<<___;
|
||
ret
|
||
.size aesni_ccm64_decrypt_blocks,.-aesni_ccm64_decrypt_blocks
|
||
___
|
||
}
|
||
######################################################################
|
||
# void aesni_ctr32_encrypt_blocks (const void *in, void *out,
|
||
# size_t blocks, const AES_KEY *key,
|
||
# const char *ivec);
|
||
#
|
||
# Handles only complete blocks, operates on 32-bit counter and
|
||
# does not update *ivec! (see crypto/modes/ctr128.c for details)
|
||
#
|
||
# Overhaul based on suggestions from Shay Gueron and Vlad Krasnov,
|
||
# http://rt.openssl.org/Ticket/Display.html?id=3021&user=guest&pass=guest.
|
||
# Keywords are full unroll and modulo-schedule counter calculations
|
||
# with zero-round key xor.
|
||
{
|
||
my ($in0,$in1,$in2,$in3,$in4,$in5)=map("%xmm$_",(10..15));
|
||
my ($key0,$ctr)=("${key_}d","${ivp}d");
|
||
my $frame_size = 0x80 + ($win64?160:0);
|
||
|
||
$code.=<<___;
|
||
.globl aesni_ctr32_encrypt_blocks
|
||
.type aesni_ctr32_encrypt_blocks,\@function,5
|
||
.align 16
|
||
aesni_ctr32_encrypt_blocks:
|
||
cmp \$1,$len
|
||
jne .Lctr32_bulk
|
||
|
||
# handle single block without allocating stack frame,
|
||
# useful when handling edges
|
||
movups ($ivp),$inout0
|
||
movups ($inp),$inout1
|
||
mov 240($key),%edx # key->rounds
|
||
___
|
||
&aesni_generate1("enc",$key,"%edx");
|
||
$code.=<<___;
|
||
pxor $rndkey0,$rndkey0 # clear register bank
|
||
pxor $rndkey1,$rndkey1
|
||
xorps $inout1,$inout0
|
||
pxor $inout1,$inout1
|
||
movups $inout0,($out)
|
||
xorps $inout0,$inout0
|
||
jmp .Lctr32_epilogue
|
||
|
||
.align 16
|
||
.Lctr32_bulk:
|
||
lea (%rsp),%rax
|
||
push %rbp
|
||
sub \$$frame_size,%rsp
|
||
and \$-16,%rsp # Linux kernel stack can be incorrectly seeded
|
||
___
|
||
$code.=<<___ if ($win64);
|
||
movaps %xmm6,-0xa8(%rax) # offload everything
|
||
movaps %xmm7,-0x98(%rax)
|
||
movaps %xmm8,-0x88(%rax)
|
||
movaps %xmm9,-0x78(%rax)
|
||
movaps %xmm10,-0x68(%rax)
|
||
movaps %xmm11,-0x58(%rax)
|
||
movaps %xmm12,-0x48(%rax)
|
||
movaps %xmm13,-0x38(%rax)
|
||
movaps %xmm14,-0x28(%rax)
|
||
movaps %xmm15,-0x18(%rax)
|
||
.Lctr32_body:
|
||
___
|
||
$code.=<<___;
|
||
lea -8(%rax),%rbp
|
||
|
||
# 8 16-byte words on top of stack are counter values
|
||
# xor-ed with zero-round key
|
||
|
||
movdqu ($ivp),$inout0
|
||
movdqu ($key),$rndkey0
|
||
mov 12($ivp),$ctr # counter LSB
|
||
pxor $rndkey0,$inout0
|
||
mov 12($key),$key0 # 0-round key LSB
|
||
movdqa $inout0,0x00(%rsp) # populate counter block
|
||
bswap $ctr
|
||
movdqa $inout0,$inout1
|
||
movdqa $inout0,$inout2
|
||
movdqa $inout0,$inout3
|
||
movdqa $inout0,0x40(%rsp)
|
||
movdqa $inout0,0x50(%rsp)
|
||
movdqa $inout0,0x60(%rsp)
|
||
mov %rdx,%r10 # about to borrow %rdx
|
||
movdqa $inout0,0x70(%rsp)
|
||
|
||
lea 1($ctr),%rax
|
||
lea 2($ctr),%rdx
|
||
bswap %eax
|
||
bswap %edx
|
||
xor $key0,%eax
|
||
xor $key0,%edx
|
||
pinsrd \$3,%eax,$inout1
|
||
lea 3($ctr),%rax
|
||
movdqa $inout1,0x10(%rsp)
|
||
pinsrd \$3,%edx,$inout2
|
||
bswap %eax
|
||
mov %r10,%rdx # restore %rdx
|
||
lea 4($ctr),%r10
|
||
movdqa $inout2,0x20(%rsp)
|
||
xor $key0,%eax
|
||
bswap %r10d
|
||
pinsrd \$3,%eax,$inout3
|
||
xor $key0,%r10d
|
||
movdqa $inout3,0x30(%rsp)
|
||
lea 5($ctr),%r9
|
||
mov %r10d,0x40+12(%rsp)
|
||
bswap %r9d
|
||
lea 6($ctr),%r10
|
||
mov 240($key),$rounds # key->rounds
|
||
xor $key0,%r9d
|
||
bswap %r10d
|
||
mov %r9d,0x50+12(%rsp)
|
||
xor $key0,%r10d
|
||
lea 7($ctr),%r9
|
||
mov %r10d,0x60+12(%rsp)
|
||
bswap %r9d
|
||
mov OPENSSL_ia32cap_P+4(%rip),%r10d
|
||
xor $key0,%r9d
|
||
and \$`1<<26|1<<22`,%r10d # isolate XSAVE+MOVBE
|
||
mov %r9d,0x70+12(%rsp)
|
||
|
||
$movkey 0x10($key),$rndkey1
|
||
|
||
movdqa 0x40(%rsp),$inout4
|
||
movdqa 0x50(%rsp),$inout5
|
||
|
||
cmp \$8,$len # $len is in blocks
|
||
jb .Lctr32_tail # short input if ($len<8)
|
||
|
||
sub \$6,$len # $len is biased by -6
|
||
cmp \$`1<<22`,%r10d # check for MOVBE without XSAVE
|
||
je .Lctr32_6x # [which denotes Atom Silvermont]
|
||
|
||
lea 0x80($key),$key # size optimization
|
||
sub \$2,$len # $len is biased by -8
|
||
jmp .Lctr32_loop8
|
||
|
||
.align 16
|
||
.Lctr32_6x:
|
||
shl \$4,$rounds
|
||
mov \$48,$rnds_
|
||
bswap $key0
|
||
lea 32($key,$rounds),$key # end of key schedule
|
||
sub %rax,%r10 # twisted $rounds
|
||
jmp .Lctr32_loop6
|
||
|
||
.align 16
|
||
.Lctr32_loop6:
|
||
add \$6,$ctr # next counter value
|
||
$movkey -48($key,$rnds_),$rndkey0
|
||
aesenc $rndkey1,$inout0
|
||
mov $ctr,%eax
|
||
xor $key0,%eax
|
||
aesenc $rndkey1,$inout1
|
||
movbe %eax,`0x00+12`(%rsp) # store next counter value
|
||
lea 1($ctr),%eax
|
||
aesenc $rndkey1,$inout2
|
||
xor $key0,%eax
|
||
movbe %eax,`0x10+12`(%rsp)
|
||
aesenc $rndkey1,$inout3
|
||
lea 2($ctr),%eax
|
||
xor $key0,%eax
|
||
aesenc $rndkey1,$inout4
|
||
movbe %eax,`0x20+12`(%rsp)
|
||
lea 3($ctr),%eax
|
||
aesenc $rndkey1,$inout5
|
||
$movkey -32($key,$rnds_),$rndkey1
|
||
xor $key0,%eax
|
||
|
||
aesenc $rndkey0,$inout0
|
||
movbe %eax,`0x30+12`(%rsp)
|
||
lea 4($ctr),%eax
|
||
aesenc $rndkey0,$inout1
|
||
xor $key0,%eax
|
||
movbe %eax,`0x40+12`(%rsp)
|
||
aesenc $rndkey0,$inout2
|
||
lea 5($ctr),%eax
|
||
xor $key0,%eax
|
||
aesenc $rndkey0,$inout3
|
||
movbe %eax,`0x50+12`(%rsp)
|
||
mov %r10,%rax # mov $rnds_,$rounds
|
||
aesenc $rndkey0,$inout4
|
||
aesenc $rndkey0,$inout5
|
||
$movkey -16($key,$rnds_),$rndkey0
|
||
|
||
call .Lenc_loop6
|
||
|
||
movdqu ($inp),$inout6 # load 6 input blocks
|
||
movdqu 0x10($inp),$inout7
|
||
movdqu 0x20($inp),$in0
|
||
movdqu 0x30($inp),$in1
|
||
movdqu 0x40($inp),$in2
|
||
movdqu 0x50($inp),$in3
|
||
lea 0x60($inp),$inp # $inp+=6*16
|
||
$movkey -64($key,$rnds_),$rndkey1
|
||
pxor $inout0,$inout6 # inp^=E(ctr)
|
||
movaps 0x00(%rsp),$inout0 # load next counter [xor-ed with 0 round]
|
||
pxor $inout1,$inout7
|
||
movaps 0x10(%rsp),$inout1
|
||
pxor $inout2,$in0
|
||
movaps 0x20(%rsp),$inout2
|
||
pxor $inout3,$in1
|
||
movaps 0x30(%rsp),$inout3
|
||
pxor $inout4,$in2
|
||
movaps 0x40(%rsp),$inout4
|
||
pxor $inout5,$in3
|
||
movaps 0x50(%rsp),$inout5
|
||
movdqu $inout6,($out) # store 6 output blocks
|
||
movdqu $inout7,0x10($out)
|
||
movdqu $in0,0x20($out)
|
||
movdqu $in1,0x30($out)
|
||
movdqu $in2,0x40($out)
|
||
movdqu $in3,0x50($out)
|
||
lea 0x60($out),$out # $out+=6*16
|
||
|
||
sub \$6,$len
|
||
jnc .Lctr32_loop6 # loop if $len-=6 didn't borrow
|
||
|
||
add \$6,$len # restore real remaining $len
|
||
jz .Lctr32_done # done if ($len==0)
|
||
|
||
lea -48($rnds_),$rounds
|
||
lea -80($key,$rnds_),$key # restore $key
|
||
neg $rounds
|
||
shr \$4,$rounds # restore $rounds
|
||
jmp .Lctr32_tail
|
||
|
||
.align 32
|
||
.Lctr32_loop8:
|
||
add \$8,$ctr # next counter value
|
||
movdqa 0x60(%rsp),$inout6
|
||
aesenc $rndkey1,$inout0
|
||
mov $ctr,%r9d
|
||
movdqa 0x70(%rsp),$inout7
|
||
aesenc $rndkey1,$inout1
|
||
bswap %r9d
|
||
$movkey 0x20-0x80($key),$rndkey0
|
||
aesenc $rndkey1,$inout2
|
||
xor $key0,%r9d
|
||
nop
|
||
aesenc $rndkey1,$inout3
|
||
mov %r9d,0x00+12(%rsp) # store next counter value
|
||
lea 1($ctr),%r9
|
||
aesenc $rndkey1,$inout4
|
||
aesenc $rndkey1,$inout5
|
||
aesenc $rndkey1,$inout6
|
||
aesenc $rndkey1,$inout7
|
||
$movkey 0x30-0x80($key),$rndkey1
|
||
___
|
||
for($i=2;$i<8;$i++) {
|
||
my $rndkeyx = ($i&1)?$rndkey1:$rndkey0;
|
||
$code.=<<___;
|
||
bswap %r9d
|
||
aesenc $rndkeyx,$inout0
|
||
aesenc $rndkeyx,$inout1
|
||
xor $key0,%r9d
|
||
.byte 0x66,0x90
|
||
aesenc $rndkeyx,$inout2
|
||
aesenc $rndkeyx,$inout3
|
||
mov %r9d,`0x10*($i-1)`+12(%rsp)
|
||
lea $i($ctr),%r9
|
||
aesenc $rndkeyx,$inout4
|
||
aesenc $rndkeyx,$inout5
|
||
aesenc $rndkeyx,$inout6
|
||
aesenc $rndkeyx,$inout7
|
||
$movkey `0x20+0x10*$i`-0x80($key),$rndkeyx
|
||
___
|
||
}
|
||
$code.=<<___;
|
||
bswap %r9d
|
||
aesenc $rndkey0,$inout0
|
||
aesenc $rndkey0,$inout1
|
||
aesenc $rndkey0,$inout2
|
||
xor $key0,%r9d
|
||
movdqu 0x00($inp),$in0 # start loading input
|
||
aesenc $rndkey0,$inout3
|
||
mov %r9d,0x70+12(%rsp)
|
||
cmp \$11,$rounds
|
||
aesenc $rndkey0,$inout4
|
||
aesenc $rndkey0,$inout5
|
||
aesenc $rndkey0,$inout6
|
||
aesenc $rndkey0,$inout7
|
||
$movkey 0xa0-0x80($key),$rndkey0
|
||
|
||
jb .Lctr32_enc_done
|
||
|
||
aesenc $rndkey1,$inout0
|
||
aesenc $rndkey1,$inout1
|
||
aesenc $rndkey1,$inout2
|
||
aesenc $rndkey1,$inout3
|
||
aesenc $rndkey1,$inout4
|
||
aesenc $rndkey1,$inout5
|
||
aesenc $rndkey1,$inout6
|
||
aesenc $rndkey1,$inout7
|
||
$movkey 0xb0-0x80($key),$rndkey1
|
||
|
||
aesenc $rndkey0,$inout0
|
||
aesenc $rndkey0,$inout1
|
||
aesenc $rndkey0,$inout2
|
||
aesenc $rndkey0,$inout3
|
||
aesenc $rndkey0,$inout4
|
||
aesenc $rndkey0,$inout5
|
||
aesenc $rndkey0,$inout6
|
||
aesenc $rndkey0,$inout7
|
||
$movkey 0xc0-0x80($key),$rndkey0
|
||
je .Lctr32_enc_done
|
||
|
||
aesenc $rndkey1,$inout0
|
||
aesenc $rndkey1,$inout1
|
||
aesenc $rndkey1,$inout2
|
||
aesenc $rndkey1,$inout3
|
||
aesenc $rndkey1,$inout4
|
||
aesenc $rndkey1,$inout5
|
||
aesenc $rndkey1,$inout6
|
||
aesenc $rndkey1,$inout7
|
||
$movkey 0xd0-0x80($key),$rndkey1
|
||
|
||
aesenc $rndkey0,$inout0
|
||
aesenc $rndkey0,$inout1
|
||
aesenc $rndkey0,$inout2
|
||
aesenc $rndkey0,$inout3
|
||
aesenc $rndkey0,$inout4
|
||
aesenc $rndkey0,$inout5
|
||
aesenc $rndkey0,$inout6
|
||
aesenc $rndkey0,$inout7
|
||
$movkey 0xe0-0x80($key),$rndkey0
|
||
jmp .Lctr32_enc_done
|
||
|
||
.align 16
|
||
.Lctr32_enc_done:
|
||
movdqu 0x10($inp),$in1
|
||
pxor $rndkey0,$in0 # input^=round[last]
|
||
movdqu 0x20($inp),$in2
|
||
pxor $rndkey0,$in1
|
||
movdqu 0x30($inp),$in3
|
||
pxor $rndkey0,$in2
|
||
movdqu 0x40($inp),$in4
|
||
pxor $rndkey0,$in3
|
||
movdqu 0x50($inp),$in5
|
||
pxor $rndkey0,$in4
|
||
pxor $rndkey0,$in5
|
||
aesenc $rndkey1,$inout0
|
||
aesenc $rndkey1,$inout1
|
||
aesenc $rndkey1,$inout2
|
||
aesenc $rndkey1,$inout3
|
||
aesenc $rndkey1,$inout4
|
||
aesenc $rndkey1,$inout5
|
||
aesenc $rndkey1,$inout6
|
||
aesenc $rndkey1,$inout7
|
||
movdqu 0x60($inp),$rndkey1 # borrow $rndkey1 for inp[6]
|
||
lea 0x80($inp),$inp # $inp+=8*16
|
||
|
||
aesenclast $in0,$inout0 # $inN is inp[N]^round[last]
|
||
pxor $rndkey0,$rndkey1 # borrowed $rndkey
|
||
movdqu 0x70-0x80($inp),$in0
|
||
aesenclast $in1,$inout1
|
||
pxor $rndkey0,$in0
|
||
movdqa 0x00(%rsp),$in1 # load next counter block
|
||
aesenclast $in2,$inout2
|
||
aesenclast $in3,$inout3
|
||
movdqa 0x10(%rsp),$in2
|
||
movdqa 0x20(%rsp),$in3
|
||
aesenclast $in4,$inout4
|
||
aesenclast $in5,$inout5
|
||
movdqa 0x30(%rsp),$in4
|
||
movdqa 0x40(%rsp),$in5
|
||
aesenclast $rndkey1,$inout6
|
||
movdqa 0x50(%rsp),$rndkey0
|
||
$movkey 0x10-0x80($key),$rndkey1#real 1st-round key
|
||
aesenclast $in0,$inout7
|
||
|
||
movups $inout0,($out) # store 8 output blocks
|
||
movdqa $in1,$inout0
|
||
movups $inout1,0x10($out)
|
||
movdqa $in2,$inout1
|
||
movups $inout2,0x20($out)
|
||
movdqa $in3,$inout2
|
||
movups $inout3,0x30($out)
|
||
movdqa $in4,$inout3
|
||
movups $inout4,0x40($out)
|
||
movdqa $in5,$inout4
|
||
movups $inout5,0x50($out)
|
||
movdqa $rndkey0,$inout5
|
||
movups $inout6,0x60($out)
|
||
movups $inout7,0x70($out)
|
||
lea 0x80($out),$out # $out+=8*16
|
||
|
||
sub \$8,$len
|
||
jnc .Lctr32_loop8 # loop if $len-=8 didn't borrow
|
||
|
||
add \$8,$len # restore real remainig $len
|
||
jz .Lctr32_done # done if ($len==0)
|
||
lea -0x80($key),$key
|
||
|
||
.Lctr32_tail:
|
||
# note that at this point $inout0..5 are populated with
|
||
# counter values xor-ed with 0-round key
|
||
lea 16($key),$key
|
||
cmp \$4,$len
|
||
jb .Lctr32_loop3
|
||
je .Lctr32_loop4
|
||
|
||
# if ($len>4) compute 7 E(counter)
|
||
shl \$4,$rounds
|
||
movdqa 0x60(%rsp),$inout6
|
||
pxor $inout7,$inout7
|
||
|
||
$movkey 16($key),$rndkey0
|
||
aesenc $rndkey1,$inout0
|
||
aesenc $rndkey1,$inout1
|
||
lea 32-16($key,$rounds),$key# prepare for .Lenc_loop8_enter
|
||
neg %rax
|
||
aesenc $rndkey1,$inout2
|
||
add \$16,%rax # prepare for .Lenc_loop8_enter
|
||
movups ($inp),$in0
|
||
aesenc $rndkey1,$inout3
|
||
aesenc $rndkey1,$inout4
|
||
movups 0x10($inp),$in1 # pre-load input
|
||
movups 0x20($inp),$in2
|
||
aesenc $rndkey1,$inout5
|
||
aesenc $rndkey1,$inout6
|
||
|
||
call .Lenc_loop8_enter
|
||
|
||
movdqu 0x30($inp),$in3
|
||
pxor $in0,$inout0
|
||
movdqu 0x40($inp),$in0
|
||
pxor $in1,$inout1
|
||
movdqu $inout0,($out) # store output
|
||
pxor $in2,$inout2
|
||
movdqu $inout1,0x10($out)
|
||
pxor $in3,$inout3
|
||
movdqu $inout2,0x20($out)
|
||
pxor $in0,$inout4
|
||
movdqu $inout3,0x30($out)
|
||
movdqu $inout4,0x40($out)
|
||
cmp \$6,$len
|
||
jb .Lctr32_done # $len was 5, stop store
|
||
|
||
movups 0x50($inp),$in1
|
||
xorps $in1,$inout5
|
||
movups $inout5,0x50($out)
|
||
je .Lctr32_done # $len was 6, stop store
|
||
|
||
movups 0x60($inp),$in2
|
||
xorps $in2,$inout6
|
||
movups $inout6,0x60($out)
|
||
jmp .Lctr32_done # $len was 7, stop store
|
||
|
||
.align 32
|
||
.Lctr32_loop4:
|
||
aesenc $rndkey1,$inout0
|
||
lea 16($key),$key
|
||
dec $rounds
|
||
aesenc $rndkey1,$inout1
|
||
aesenc $rndkey1,$inout2
|
||
aesenc $rndkey1,$inout3
|
||
$movkey ($key),$rndkey1
|
||
jnz .Lctr32_loop4
|
||
aesenclast $rndkey1,$inout0
|
||
aesenclast $rndkey1,$inout1
|
||
movups ($inp),$in0 # load input
|
||
movups 0x10($inp),$in1
|
||
aesenclast $rndkey1,$inout2
|
||
aesenclast $rndkey1,$inout3
|
||
movups 0x20($inp),$in2
|
||
movups 0x30($inp),$in3
|
||
|
||
xorps $in0,$inout0
|
||
movups $inout0,($out) # store output
|
||
xorps $in1,$inout1
|
||
movups $inout1,0x10($out)
|
||
pxor $in2,$inout2
|
||
movdqu $inout2,0x20($out)
|
||
pxor $in3,$inout3
|
||
movdqu $inout3,0x30($out)
|
||
jmp .Lctr32_done # $len was 4, stop store
|
||
|
||
.align 32
|
||
.Lctr32_loop3:
|
||
aesenc $rndkey1,$inout0
|
||
lea 16($key),$key
|
||
dec $rounds
|
||
aesenc $rndkey1,$inout1
|
||
aesenc $rndkey1,$inout2
|
||
$movkey ($key),$rndkey1
|
||
jnz .Lctr32_loop3
|
||
aesenclast $rndkey1,$inout0
|
||
aesenclast $rndkey1,$inout1
|
||
aesenclast $rndkey1,$inout2
|
||
|
||
movups ($inp),$in0 # load input
|
||
xorps $in0,$inout0
|
||
movups $inout0,($out) # store output
|
||
cmp \$2,$len
|
||
jb .Lctr32_done # $len was 1, stop store
|
||
|
||
movups 0x10($inp),$in1
|
||
xorps $in1,$inout1
|
||
movups $inout1,0x10($out)
|
||
je .Lctr32_done # $len was 2, stop store
|
||
|
||
movups 0x20($inp),$in2
|
||
xorps $in2,$inout2
|
||
movups $inout2,0x20($out) # $len was 3, stop store
|
||
|
||
.Lctr32_done:
|
||
xorps %xmm0,%xmm0 # clear regiser bank
|
||
xor $key0,$key0
|
||
pxor %xmm1,%xmm1
|
||
pxor %xmm2,%xmm2
|
||
pxor %xmm3,%xmm3
|
||
pxor %xmm4,%xmm4
|
||
pxor %xmm5,%xmm5
|
||
___
|
||
$code.=<<___ if (!$win64);
|
||
pxor %xmm6,%xmm6
|
||
pxor %xmm7,%xmm7
|
||
movaps %xmm0,0x00(%rsp) # clear stack
|
||
pxor %xmm8,%xmm8
|
||
movaps %xmm0,0x10(%rsp)
|
||
pxor %xmm9,%xmm9
|
||
movaps %xmm0,0x20(%rsp)
|
||
pxor %xmm10,%xmm10
|
||
movaps %xmm0,0x30(%rsp)
|
||
pxor %xmm11,%xmm11
|
||
movaps %xmm0,0x40(%rsp)
|
||
pxor %xmm12,%xmm12
|
||
movaps %xmm0,0x50(%rsp)
|
||
pxor %xmm13,%xmm13
|
||
movaps %xmm0,0x60(%rsp)
|
||
pxor %xmm14,%xmm14
|
||
movaps %xmm0,0x70(%rsp)
|
||
pxor %xmm15,%xmm15
|
||
___
|
||
$code.=<<___ if ($win64);
|
||
movaps -0xa0(%rbp),%xmm6
|
||
movaps %xmm0,-0xa0(%rbp) # clear stack
|
||
movaps -0x90(%rbp),%xmm7
|
||
movaps %xmm0,-0x90(%rbp)
|
||
movaps -0x80(%rbp),%xmm8
|
||
movaps %xmm0,-0x80(%rbp)
|
||
movaps -0x70(%rbp),%xmm9
|
||
movaps %xmm0,-0x70(%rbp)
|
||
movaps -0x60(%rbp),%xmm10
|
||
movaps %xmm0,-0x60(%rbp)
|
||
movaps -0x50(%rbp),%xmm11
|
||
movaps %xmm0,-0x50(%rbp)
|
||
movaps -0x40(%rbp),%xmm12
|
||
movaps %xmm0,-0x40(%rbp)
|
||
movaps -0x30(%rbp),%xmm13
|
||
movaps %xmm0,-0x30(%rbp)
|
||
movaps -0x20(%rbp),%xmm14
|
||
movaps %xmm0,-0x20(%rbp)
|
||
movaps -0x10(%rbp),%xmm15
|
||
movaps %xmm0,-0x10(%rbp)
|
||
movaps %xmm0,0x00(%rsp)
|
||
movaps %xmm0,0x10(%rsp)
|
||
movaps %xmm0,0x20(%rsp)
|
||
movaps %xmm0,0x30(%rsp)
|
||
movaps %xmm0,0x40(%rsp)
|
||
movaps %xmm0,0x50(%rsp)
|
||
movaps %xmm0,0x60(%rsp)
|
||
movaps %xmm0,0x70(%rsp)
|
||
___
|
||
$code.=<<___;
|
||
lea (%rbp),%rsp
|
||
pop %rbp
|
||
.Lctr32_epilogue:
|
||
ret
|
||
.size aesni_ctr32_encrypt_blocks,.-aesni_ctr32_encrypt_blocks
|
||
___
|
||
}
|
||
|
||
######################################################################
|
||
# void aesni_xts_[en|de]crypt(const char *inp,char *out,size_t len,
|
||
# const AES_KEY *key1, const AES_KEY *key2
|
||
# const unsigned char iv[16]);
|
||
#
|
||
{
|
||
my @tweak=map("%xmm$_",(10..15));
|
||
my ($twmask,$twres,$twtmp)=("%xmm8","%xmm9",@tweak[4]);
|
||
my ($key2,$ivp,$len_)=("%r8","%r9","%r9");
|
||
my $frame_size = 0x70 + ($win64?160:0);
|
||
|
||
$code.=<<___;
|
||
.globl aesni_xts_encrypt
|
||
.type aesni_xts_encrypt,\@function,6
|
||
.align 16
|
||
aesni_xts_encrypt:
|
||
lea (%rsp),%rax
|
||
push %rbp
|
||
sub \$$frame_size,%rsp
|
||
and \$-16,%rsp # Linux kernel stack can be incorrectly seeded
|
||
___
|
||
$code.=<<___ if ($win64);
|
||
movaps %xmm6,-0xa8(%rax) # offload everything
|
||
movaps %xmm7,-0x98(%rax)
|
||
movaps %xmm8,-0x88(%rax)
|
||
movaps %xmm9,-0x78(%rax)
|
||
movaps %xmm10,-0x68(%rax)
|
||
movaps %xmm11,-0x58(%rax)
|
||
movaps %xmm12,-0x48(%rax)
|
||
movaps %xmm13,-0x38(%rax)
|
||
movaps %xmm14,-0x28(%rax)
|
||
movaps %xmm15,-0x18(%rax)
|
||
.Lxts_enc_body:
|
||
___
|
||
$code.=<<___;
|
||
lea -8(%rax),%rbp
|
||
movups ($ivp),$inout0 # load clear-text tweak
|
||
mov 240(%r8),$rounds # key2->rounds
|
||
mov 240($key),$rnds_ # key1->rounds
|
||
___
|
||
# generate the tweak
|
||
&aesni_generate1("enc",$key2,$rounds,$inout0);
|
||
$code.=<<___;
|
||
$movkey ($key),$rndkey0 # zero round key
|
||
mov $key,$key_ # backup $key
|
||
mov $rnds_,$rounds # backup $rounds
|
||
shl \$4,$rnds_
|
||
mov $len,$len_ # backup $len
|
||
and \$-16,$len
|
||
|
||
$movkey 16($key,$rnds_),$rndkey1 # last round key
|
||
|
||
movdqa .Lxts_magic(%rip),$twmask
|
||
movdqa $inout0,@tweak[5]
|
||
pshufd \$0x5f,$inout0,$twres
|
||
pxor $rndkey0,$rndkey1
|
||
___
|
||
# alternative tweak calculation algorithm is based on suggestions
|
||
# by Shay Gueron. psrad doesn't conflict with AES-NI instructions
|
||
# and should help in the future...
|
||
for ($i=0;$i<4;$i++) {
|
||
$code.=<<___;
|
||
movdqa $twres,$twtmp
|
||
paddd $twres,$twres
|
||
movdqa @tweak[5],@tweak[$i]
|
||
psrad \$31,$twtmp # broadcast upper bits
|
||
paddq @tweak[5],@tweak[5]
|
||
pand $twmask,$twtmp
|
||
pxor $rndkey0,@tweak[$i]
|
||
pxor $twtmp,@tweak[5]
|
||
___
|
||
}
|
||
$code.=<<___;
|
||
movdqa @tweak[5],@tweak[4]
|
||
psrad \$31,$twres
|
||
paddq @tweak[5],@tweak[5]
|
||
pand $twmask,$twres
|
||
pxor $rndkey0,@tweak[4]
|
||
pxor $twres,@tweak[5]
|
||
movaps $rndkey1,0x60(%rsp) # save round[0]^round[last]
|
||
|
||
sub \$16*6,$len
|
||
jc .Lxts_enc_short # if $len-=6*16 borrowed
|
||
|
||
mov \$16+96,$rounds
|
||
lea 32($key_,$rnds_),$key # end of key schedule
|
||
sub %r10,%rax # twisted $rounds
|
||
$movkey 16($key_),$rndkey1
|
||
mov %rax,%r10 # backup twisted $rounds
|
||
lea .Lxts_magic(%rip),%r8
|
||
jmp .Lxts_enc_grandloop
|
||
|
||
.align 32
|
||
.Lxts_enc_grandloop:
|
||
movdqu `16*0`($inp),$inout0 # load input
|
||
movdqa $rndkey0,$twmask
|
||
movdqu `16*1`($inp),$inout1
|
||
pxor @tweak[0],$inout0 # input^=tweak^round[0]
|
||
movdqu `16*2`($inp),$inout2
|
||
pxor @tweak[1],$inout1
|
||
aesenc $rndkey1,$inout0
|
||
movdqu `16*3`($inp),$inout3
|
||
pxor @tweak[2],$inout2
|
||
aesenc $rndkey1,$inout1
|
||
movdqu `16*4`($inp),$inout4
|
||
pxor @tweak[3],$inout3
|
||
aesenc $rndkey1,$inout2
|
||
movdqu `16*5`($inp),$inout5
|
||
pxor @tweak[5],$twmask # round[0]^=tweak[5]
|
||
movdqa 0x60(%rsp),$twres # load round[0]^round[last]
|
||
pxor @tweak[4],$inout4
|
||
aesenc $rndkey1,$inout3
|
||
$movkey 32($key_),$rndkey0
|
||
lea `16*6`($inp),$inp
|
||
pxor $twmask,$inout5
|
||
|
||
pxor $twres,@tweak[0] # calclulate tweaks^round[last]
|
||
aesenc $rndkey1,$inout4
|
||
pxor $twres,@tweak[1]
|
||
movdqa @tweak[0],`16*0`(%rsp) # put aside tweaks^round[last]
|
||
aesenc $rndkey1,$inout5
|
||
$movkey 48($key_),$rndkey1
|
||
pxor $twres,@tweak[2]
|
||
|
||
aesenc $rndkey0,$inout0
|
||
pxor $twres,@tweak[3]
|
||
movdqa @tweak[1],`16*1`(%rsp)
|
||
aesenc $rndkey0,$inout1
|
||
pxor $twres,@tweak[4]
|
||
movdqa @tweak[2],`16*2`(%rsp)
|
||
aesenc $rndkey0,$inout2
|
||
aesenc $rndkey0,$inout3
|
||
pxor $twres,$twmask
|
||
movdqa @tweak[4],`16*4`(%rsp)
|
||
aesenc $rndkey0,$inout4
|
||
aesenc $rndkey0,$inout5
|
||
$movkey 64($key_),$rndkey0
|
||
movdqa $twmask,`16*5`(%rsp)
|
||
pshufd \$0x5f,@tweak[5],$twres
|
||
jmp .Lxts_enc_loop6
|
||
.align 32
|
||
.Lxts_enc_loop6:
|
||
aesenc $rndkey1,$inout0
|
||
aesenc $rndkey1,$inout1
|
||
aesenc $rndkey1,$inout2
|
||
aesenc $rndkey1,$inout3
|
||
aesenc $rndkey1,$inout4
|
||
aesenc $rndkey1,$inout5
|
||
$movkey -64($key,%rax),$rndkey1
|
||
add \$32,%rax
|
||
|
||
aesenc $rndkey0,$inout0
|
||
aesenc $rndkey0,$inout1
|
||
aesenc $rndkey0,$inout2
|
||
aesenc $rndkey0,$inout3
|
||
aesenc $rndkey0,$inout4
|
||
aesenc $rndkey0,$inout5
|
||
$movkey -80($key,%rax),$rndkey0
|
||
jnz .Lxts_enc_loop6
|
||
|
||
movdqa (%r8),$twmask # start calculating next tweak
|
||
movdqa $twres,$twtmp
|
||
paddd $twres,$twres
|
||
aesenc $rndkey1,$inout0
|
||
paddq @tweak[5],@tweak[5]
|
||
psrad \$31,$twtmp
|
||
aesenc $rndkey1,$inout1
|
||
pand $twmask,$twtmp
|
||
$movkey ($key_),@tweak[0] # load round[0]
|
||
aesenc $rndkey1,$inout2
|
||
aesenc $rndkey1,$inout3
|
||
aesenc $rndkey1,$inout4
|
||
pxor $twtmp,@tweak[5]
|
||
movaps @tweak[0],@tweak[1] # copy round[0]
|
||
aesenc $rndkey1,$inout5
|
||
$movkey -64($key),$rndkey1
|
||
|
||
movdqa $twres,$twtmp
|
||
aesenc $rndkey0,$inout0
|
||
paddd $twres,$twres
|
||
pxor @tweak[5],@tweak[0]
|
||
aesenc $rndkey0,$inout1
|
||
psrad \$31,$twtmp
|
||
paddq @tweak[5],@tweak[5]
|
||
aesenc $rndkey0,$inout2
|
||
aesenc $rndkey0,$inout3
|
||
pand $twmask,$twtmp
|
||
movaps @tweak[1],@tweak[2]
|
||
aesenc $rndkey0,$inout4
|
||
pxor $twtmp,@tweak[5]
|
||
movdqa $twres,$twtmp
|
||
aesenc $rndkey0,$inout5
|
||
$movkey -48($key),$rndkey0
|
||
|
||
paddd $twres,$twres
|
||
aesenc $rndkey1,$inout0
|
||
pxor @tweak[5],@tweak[1]
|
||
psrad \$31,$twtmp
|
||
aesenc $rndkey1,$inout1
|
||
paddq @tweak[5],@tweak[5]
|
||
pand $twmask,$twtmp
|
||
aesenc $rndkey1,$inout2
|
||
aesenc $rndkey1,$inout3
|
||
movdqa @tweak[3],`16*3`(%rsp)
|
||
pxor $twtmp,@tweak[5]
|
||
aesenc $rndkey1,$inout4
|
||
movaps @tweak[2],@tweak[3]
|
||
movdqa $twres,$twtmp
|
||
aesenc $rndkey1,$inout5
|
||
$movkey -32($key),$rndkey1
|
||
|
||
paddd $twres,$twres
|
||
aesenc $rndkey0,$inout0
|
||
pxor @tweak[5],@tweak[2]
|
||
psrad \$31,$twtmp
|
||
aesenc $rndkey0,$inout1
|
||
paddq @tweak[5],@tweak[5]
|
||
pand $twmask,$twtmp
|
||
aesenc $rndkey0,$inout2
|
||
aesenc $rndkey0,$inout3
|
||
aesenc $rndkey0,$inout4
|
||
pxor $twtmp,@tweak[5]
|
||
movaps @tweak[3],@tweak[4]
|
||
aesenc $rndkey0,$inout5
|
||
|
||
movdqa $twres,$rndkey0
|
||
paddd $twres,$twres
|
||
aesenc $rndkey1,$inout0
|
||
pxor @tweak[5],@tweak[3]
|
||
psrad \$31,$rndkey0
|
||
aesenc $rndkey1,$inout1
|
||
paddq @tweak[5],@tweak[5]
|
||
pand $twmask,$rndkey0
|
||
aesenc $rndkey1,$inout2
|
||
aesenc $rndkey1,$inout3
|
||
pxor $rndkey0,@tweak[5]
|
||
$movkey ($key_),$rndkey0
|
||
aesenc $rndkey1,$inout4
|
||
aesenc $rndkey1,$inout5
|
||
$movkey 16($key_),$rndkey1
|
||
|
||
pxor @tweak[5],@tweak[4]
|
||
aesenclast `16*0`(%rsp),$inout0
|
||
psrad \$31,$twres
|
||
paddq @tweak[5],@tweak[5]
|
||
aesenclast `16*1`(%rsp),$inout1
|
||
aesenclast `16*2`(%rsp),$inout2
|
||
pand $twmask,$twres
|
||
mov %r10,%rax # restore $rounds
|
||
aesenclast `16*3`(%rsp),$inout3
|
||
aesenclast `16*4`(%rsp),$inout4
|
||
aesenclast `16*5`(%rsp),$inout5
|
||
pxor $twres,@tweak[5]
|
||
|
||
lea `16*6`($out),$out # $out+=6*16
|
||
movups $inout0,`-16*6`($out) # store 6 output blocks
|
||
movups $inout1,`-16*5`($out)
|
||
movups $inout2,`-16*4`($out)
|
||
movups $inout3,`-16*3`($out)
|
||
movups $inout4,`-16*2`($out)
|
||
movups $inout5,`-16*1`($out)
|
||
sub \$16*6,$len
|
||
jnc .Lxts_enc_grandloop # loop if $len-=6*16 didn't borrow
|
||
|
||
mov \$16+96,$rounds
|
||
sub $rnds_,$rounds
|
||
mov $key_,$key # restore $key
|
||
shr \$4,$rounds # restore original value
|
||
|
||
.Lxts_enc_short:
|
||
# at the point @tweak[0..5] are populated with tweak values
|
||
mov $rounds,$rnds_ # backup $rounds
|
||
pxor $rndkey0,@tweak[0]
|
||
add \$16*6,$len # restore real remaining $len
|
||
jz .Lxts_enc_done # done if ($len==0)
|
||
|
||
pxor $rndkey0,@tweak[1]
|
||
cmp \$0x20,$len
|
||
jb .Lxts_enc_one # $len is 1*16
|
||
pxor $rndkey0,@tweak[2]
|
||
je .Lxts_enc_two # $len is 2*16
|
||
|
||
pxor $rndkey0,@tweak[3]
|
||
cmp \$0x40,$len
|
||
jb .Lxts_enc_three # $len is 3*16
|
||
pxor $rndkey0,@tweak[4]
|
||
je .Lxts_enc_four # $len is 4*16
|
||
|
||
movdqu ($inp),$inout0 # $len is 5*16
|
||
movdqu 16*1($inp),$inout1
|
||
movdqu 16*2($inp),$inout2
|
||
pxor @tweak[0],$inout0
|
||
movdqu 16*3($inp),$inout3
|
||
pxor @tweak[1],$inout1
|
||
movdqu 16*4($inp),$inout4
|
||
lea 16*5($inp),$inp # $inp+=5*16
|
||
pxor @tweak[2],$inout2
|
||
pxor @tweak[3],$inout3
|
||
pxor @tweak[4],$inout4
|
||
pxor $inout5,$inout5
|
||
|
||
call _aesni_encrypt6
|
||
|
||
xorps @tweak[0],$inout0
|
||
movdqa @tweak[5],@tweak[0]
|
||
xorps @tweak[1],$inout1
|
||
xorps @tweak[2],$inout2
|
||
movdqu $inout0,($out) # store 5 output blocks
|
||
xorps @tweak[3],$inout3
|
||
movdqu $inout1,16*1($out)
|
||
xorps @tweak[4],$inout4
|
||
movdqu $inout2,16*2($out)
|
||
movdqu $inout3,16*3($out)
|
||
movdqu $inout4,16*4($out)
|
||
lea 16*5($out),$out # $out+=5*16
|
||
jmp .Lxts_enc_done
|
||
|
||
.align 16
|
||
.Lxts_enc_one:
|
||
movups ($inp),$inout0
|
||
lea 16*1($inp),$inp # inp+=1*16
|
||
xorps @tweak[0],$inout0
|
||
___
|
||
&aesni_generate1("enc",$key,$rounds);
|
||
$code.=<<___;
|
||
xorps @tweak[0],$inout0
|
||
movdqa @tweak[1],@tweak[0]
|
||
movups $inout0,($out) # store one output block
|
||
lea 16*1($out),$out # $out+=1*16
|
||
jmp .Lxts_enc_done
|
||
|
||
.align 16
|
||
.Lxts_enc_two:
|
||
movups ($inp),$inout0
|
||
movups 16($inp),$inout1
|
||
lea 32($inp),$inp # $inp+=2*16
|
||
xorps @tweak[0],$inout0
|
||
xorps @tweak[1],$inout1
|
||
|
||
call _aesni_encrypt2
|
||
|
||
xorps @tweak[0],$inout0
|
||
movdqa @tweak[2],@tweak[0]
|
||
xorps @tweak[1],$inout1
|
||
movups $inout0,($out) # store 2 output blocks
|
||
movups $inout1,16*1($out)
|
||
lea 16*2($out),$out # $out+=2*16
|
||
jmp .Lxts_enc_done
|
||
|
||
.align 16
|
||
.Lxts_enc_three:
|
||
movups ($inp),$inout0
|
||
movups 16*1($inp),$inout1
|
||
movups 16*2($inp),$inout2
|
||
lea 16*3($inp),$inp # $inp+=3*16
|
||
xorps @tweak[0],$inout0
|
||
xorps @tweak[1],$inout1
|
||
xorps @tweak[2],$inout2
|
||
|
||
call _aesni_encrypt3
|
||
|
||
xorps @tweak[0],$inout0
|
||
movdqa @tweak[3],@tweak[0]
|
||
xorps @tweak[1],$inout1
|
||
xorps @tweak[2],$inout2
|
||
movups $inout0,($out) # store 3 output blocks
|
||
movups $inout1,16*1($out)
|
||
movups $inout2,16*2($out)
|
||
lea 16*3($out),$out # $out+=3*16
|
||
jmp .Lxts_enc_done
|
||
|
||
.align 16
|
||
.Lxts_enc_four:
|
||
movups ($inp),$inout0
|
||
movups 16*1($inp),$inout1
|
||
movups 16*2($inp),$inout2
|
||
xorps @tweak[0],$inout0
|
||
movups 16*3($inp),$inout3
|
||
lea 16*4($inp),$inp # $inp+=4*16
|
||
xorps @tweak[1],$inout1
|
||
xorps @tweak[2],$inout2
|
||
xorps @tweak[3],$inout3
|
||
|
||
call _aesni_encrypt4
|
||
|
||
pxor @tweak[0],$inout0
|
||
movdqa @tweak[4],@tweak[0]
|
||
pxor @tweak[1],$inout1
|
||
pxor @tweak[2],$inout2
|
||
movdqu $inout0,($out) # store 4 output blocks
|
||
pxor @tweak[3],$inout3
|
||
movdqu $inout1,16*1($out)
|
||
movdqu $inout2,16*2($out)
|
||
movdqu $inout3,16*3($out)
|
||
lea 16*4($out),$out # $out+=4*16
|
||
jmp .Lxts_enc_done
|
||
|
||
.align 16
|
||
.Lxts_enc_done:
|
||
and \$15,$len_ # see if $len%16 is 0
|
||
jz .Lxts_enc_ret
|
||
mov $len_,$len
|
||
|
||
.Lxts_enc_steal:
|
||
movzb ($inp),%eax # borrow $rounds ...
|
||
movzb -16($out),%ecx # ... and $key
|
||
lea 1($inp),$inp
|
||
mov %al,-16($out)
|
||
mov %cl,0($out)
|
||
lea 1($out),$out
|
||
sub \$1,$len
|
||
jnz .Lxts_enc_steal
|
||
|
||
sub $len_,$out # rewind $out
|
||
mov $key_,$key # restore $key
|
||
mov $rnds_,$rounds # restore $rounds
|
||
|
||
movups -16($out),$inout0
|
||
xorps @tweak[0],$inout0
|
||
___
|
||
&aesni_generate1("enc",$key,$rounds);
|
||
$code.=<<___;
|
||
xorps @tweak[0],$inout0
|
||
movups $inout0,-16($out)
|
||
|
||
.Lxts_enc_ret:
|
||
xorps %xmm0,%xmm0 # clear register bank
|
||
pxor %xmm1,%xmm1
|
||
pxor %xmm2,%xmm2
|
||
pxor %xmm3,%xmm3
|
||
pxor %xmm4,%xmm4
|
||
pxor %xmm5,%xmm5
|
||
___
|
||
$code.=<<___ if (!$win64);
|
||
pxor %xmm6,%xmm6
|
||
pxor %xmm7,%xmm7
|
||
movaps %xmm0,0x00(%rsp) # clear stack
|
||
pxor %xmm8,%xmm8
|
||
movaps %xmm0,0x10(%rsp)
|
||
pxor %xmm9,%xmm9
|
||
movaps %xmm0,0x20(%rsp)
|
||
pxor %xmm10,%xmm10
|
||
movaps %xmm0,0x30(%rsp)
|
||
pxor %xmm11,%xmm11
|
||
movaps %xmm0,0x40(%rsp)
|
||
pxor %xmm12,%xmm12
|
||
movaps %xmm0,0x50(%rsp)
|
||
pxor %xmm13,%xmm13
|
||
movaps %xmm0,0x60(%rsp)
|
||
pxor %xmm14,%xmm14
|
||
pxor %xmm15,%xmm15
|
||
___
|
||
$code.=<<___ if ($win64);
|
||
movaps -0xa0(%rbp),%xmm6
|
||
movaps %xmm0,-0xa0(%rbp) # clear stack
|
||
movaps -0x90(%rbp),%xmm7
|
||
movaps %xmm0,-0x90(%rbp)
|
||
movaps -0x80(%rbp),%xmm8
|
||
movaps %xmm0,-0x80(%rbp)
|
||
movaps -0x70(%rbp),%xmm9
|
||
movaps %xmm0,-0x70(%rbp)
|
||
movaps -0x60(%rbp),%xmm10
|
||
movaps %xmm0,-0x60(%rbp)
|
||
movaps -0x50(%rbp),%xmm11
|
||
movaps %xmm0,-0x50(%rbp)
|
||
movaps -0x40(%rbp),%xmm12
|
||
movaps %xmm0,-0x40(%rbp)
|
||
movaps -0x30(%rbp),%xmm13
|
||
movaps %xmm0,-0x30(%rbp)
|
||
movaps -0x20(%rbp),%xmm14
|
||
movaps %xmm0,-0x20(%rbp)
|
||
movaps -0x10(%rbp),%xmm15
|
||
movaps %xmm0,-0x10(%rbp)
|
||
movaps %xmm0,0x00(%rsp)
|
||
movaps %xmm0,0x10(%rsp)
|
||
movaps %xmm0,0x20(%rsp)
|
||
movaps %xmm0,0x30(%rsp)
|
||
movaps %xmm0,0x40(%rsp)
|
||
movaps %xmm0,0x50(%rsp)
|
||
movaps %xmm0,0x60(%rsp)
|
||
___
|
||
$code.=<<___;
|
||
lea (%rbp),%rsp
|
||
pop %rbp
|
||
.Lxts_enc_epilogue:
|
||
ret
|
||
.size aesni_xts_encrypt,.-aesni_xts_encrypt
|
||
___
|
||
|
||
$code.=<<___;
|
||
.globl aesni_xts_decrypt
|
||
.type aesni_xts_decrypt,\@function,6
|
||
.align 16
|
||
aesni_xts_decrypt:
|
||
lea (%rsp),%rax
|
||
push %rbp
|
||
sub \$$frame_size,%rsp
|
||
and \$-16,%rsp # Linux kernel stack can be incorrectly seeded
|
||
___
|
||
$code.=<<___ if ($win64);
|
||
movaps %xmm6,-0xa8(%rax) # offload everything
|
||
movaps %xmm7,-0x98(%rax)
|
||
movaps %xmm8,-0x88(%rax)
|
||
movaps %xmm9,-0x78(%rax)
|
||
movaps %xmm10,-0x68(%rax)
|
||
movaps %xmm11,-0x58(%rax)
|
||
movaps %xmm12,-0x48(%rax)
|
||
movaps %xmm13,-0x38(%rax)
|
||
movaps %xmm14,-0x28(%rax)
|
||
movaps %xmm15,-0x18(%rax)
|
||
.Lxts_dec_body:
|
||
___
|
||
$code.=<<___;
|
||
lea -8(%rax),%rbp
|
||
movups ($ivp),$inout0 # load clear-text tweak
|
||
mov 240($key2),$rounds # key2->rounds
|
||
mov 240($key),$rnds_ # key1->rounds
|
||
___
|
||
# generate the tweak
|
||
&aesni_generate1("enc",$key2,$rounds,$inout0);
|
||
$code.=<<___;
|
||
xor %eax,%eax # if ($len%16) len-=16;
|
||
test \$15,$len
|
||
setnz %al
|
||
shl \$4,%rax
|
||
sub %rax,$len
|
||
|
||
$movkey ($key),$rndkey0 # zero round key
|
||
mov $key,$key_ # backup $key
|
||
mov $rnds_,$rounds # backup $rounds
|
||
shl \$4,$rnds_
|
||
mov $len,$len_ # backup $len
|
||
and \$-16,$len
|
||
|
||
$movkey 16($key,$rnds_),$rndkey1 # last round key
|
||
|
||
movdqa .Lxts_magic(%rip),$twmask
|
||
movdqa $inout0,@tweak[5]
|
||
pshufd \$0x5f,$inout0,$twres
|
||
pxor $rndkey0,$rndkey1
|
||
___
|
||
for ($i=0;$i<4;$i++) {
|
||
$code.=<<___;
|
||
movdqa $twres,$twtmp
|
||
paddd $twres,$twres
|
||
movdqa @tweak[5],@tweak[$i]
|
||
psrad \$31,$twtmp # broadcast upper bits
|
||
paddq @tweak[5],@tweak[5]
|
||
pand $twmask,$twtmp
|
||
pxor $rndkey0,@tweak[$i]
|
||
pxor $twtmp,@tweak[5]
|
||
___
|
||
}
|
||
$code.=<<___;
|
||
movdqa @tweak[5],@tweak[4]
|
||
psrad \$31,$twres
|
||
paddq @tweak[5],@tweak[5]
|
||
pand $twmask,$twres
|
||
pxor $rndkey0,@tweak[4]
|
||
pxor $twres,@tweak[5]
|
||
movaps $rndkey1,0x60(%rsp) # save round[0]^round[last]
|
||
|
||
sub \$16*6,$len
|
||
jc .Lxts_dec_short # if $len-=6*16 borrowed
|
||
|
||
mov \$16+96,$rounds
|
||
lea 32($key_,$rnds_),$key # end of key schedule
|
||
sub %r10,%rax # twisted $rounds
|
||
$movkey 16($key_),$rndkey1
|
||
mov %rax,%r10 # backup twisted $rounds
|
||
lea .Lxts_magic(%rip),%r8
|
||
jmp .Lxts_dec_grandloop
|
||
|
||
.align 32
|
||
.Lxts_dec_grandloop:
|
||
movdqu `16*0`($inp),$inout0 # load input
|
||
movdqa $rndkey0,$twmask
|
||
movdqu `16*1`($inp),$inout1
|
||
pxor @tweak[0],$inout0 # intput^=tweak^round[0]
|
||
movdqu `16*2`($inp),$inout2
|
||
pxor @tweak[1],$inout1
|
||
aesdec $rndkey1,$inout0
|
||
movdqu `16*3`($inp),$inout3
|
||
pxor @tweak[2],$inout2
|
||
aesdec $rndkey1,$inout1
|
||
movdqu `16*4`($inp),$inout4
|
||
pxor @tweak[3],$inout3
|
||
aesdec $rndkey1,$inout2
|
||
movdqu `16*5`($inp),$inout5
|
||
pxor @tweak[5],$twmask # round[0]^=tweak[5]
|
||
movdqa 0x60(%rsp),$twres # load round[0]^round[last]
|
||
pxor @tweak[4],$inout4
|
||
aesdec $rndkey1,$inout3
|
||
$movkey 32($key_),$rndkey0
|
||
lea `16*6`($inp),$inp
|
||
pxor $twmask,$inout5
|
||
|
||
pxor $twres,@tweak[0] # calclulate tweaks^round[last]
|
||
aesdec $rndkey1,$inout4
|
||
pxor $twres,@tweak[1]
|
||
movdqa @tweak[0],`16*0`(%rsp) # put aside tweaks^last round key
|
||
aesdec $rndkey1,$inout5
|
||
$movkey 48($key_),$rndkey1
|
||
pxor $twres,@tweak[2]
|
||
|
||
aesdec $rndkey0,$inout0
|
||
pxor $twres,@tweak[3]
|
||
movdqa @tweak[1],`16*1`(%rsp)
|
||
aesdec $rndkey0,$inout1
|
||
pxor $twres,@tweak[4]
|
||
movdqa @tweak[2],`16*2`(%rsp)
|
||
aesdec $rndkey0,$inout2
|
||
aesdec $rndkey0,$inout3
|
||
pxor $twres,$twmask
|
||
movdqa @tweak[4],`16*4`(%rsp)
|
||
aesdec $rndkey0,$inout4
|
||
aesdec $rndkey0,$inout5
|
||
$movkey 64($key_),$rndkey0
|
||
movdqa $twmask,`16*5`(%rsp)
|
||
pshufd \$0x5f,@tweak[5],$twres
|
||
jmp .Lxts_dec_loop6
|
||
.align 32
|
||
.Lxts_dec_loop6:
|
||
aesdec $rndkey1,$inout0
|
||
aesdec $rndkey1,$inout1
|
||
aesdec $rndkey1,$inout2
|
||
aesdec $rndkey1,$inout3
|
||
aesdec $rndkey1,$inout4
|
||
aesdec $rndkey1,$inout5
|
||
$movkey -64($key,%rax),$rndkey1
|
||
add \$32,%rax
|
||
|
||
aesdec $rndkey0,$inout0
|
||
aesdec $rndkey0,$inout1
|
||
aesdec $rndkey0,$inout2
|
||
aesdec $rndkey0,$inout3
|
||
aesdec $rndkey0,$inout4
|
||
aesdec $rndkey0,$inout5
|
||
$movkey -80($key,%rax),$rndkey0
|
||
jnz .Lxts_dec_loop6
|
||
|
||
movdqa (%r8),$twmask # start calculating next tweak
|
||
movdqa $twres,$twtmp
|
||
paddd $twres,$twres
|
||
aesdec $rndkey1,$inout0
|
||
paddq @tweak[5],@tweak[5]
|
||
psrad \$31,$twtmp
|
||
aesdec $rndkey1,$inout1
|
||
pand $twmask,$twtmp
|
||
$movkey ($key_),@tweak[0] # load round[0]
|
||
aesdec $rndkey1,$inout2
|
||
aesdec $rndkey1,$inout3
|
||
aesdec $rndkey1,$inout4
|
||
pxor $twtmp,@tweak[5]
|
||
movaps @tweak[0],@tweak[1] # copy round[0]
|
||
aesdec $rndkey1,$inout5
|
||
$movkey -64($key),$rndkey1
|
||
|
||
movdqa $twres,$twtmp
|
||
aesdec $rndkey0,$inout0
|
||
paddd $twres,$twres
|
||
pxor @tweak[5],@tweak[0]
|
||
aesdec $rndkey0,$inout1
|
||
psrad \$31,$twtmp
|
||
paddq @tweak[5],@tweak[5]
|
||
aesdec $rndkey0,$inout2
|
||
aesdec $rndkey0,$inout3
|
||
pand $twmask,$twtmp
|
||
movaps @tweak[1],@tweak[2]
|
||
aesdec $rndkey0,$inout4
|
||
pxor $twtmp,@tweak[5]
|
||
movdqa $twres,$twtmp
|
||
aesdec $rndkey0,$inout5
|
||
$movkey -48($key),$rndkey0
|
||
|
||
paddd $twres,$twres
|
||
aesdec $rndkey1,$inout0
|
||
pxor @tweak[5],@tweak[1]
|
||
psrad \$31,$twtmp
|
||
aesdec $rndkey1,$inout1
|
||
paddq @tweak[5],@tweak[5]
|
||
pand $twmask,$twtmp
|
||
aesdec $rndkey1,$inout2
|
||
aesdec $rndkey1,$inout3
|
||
movdqa @tweak[3],`16*3`(%rsp)
|
||
pxor $twtmp,@tweak[5]
|
||
aesdec $rndkey1,$inout4
|
||
movaps @tweak[2],@tweak[3]
|
||
movdqa $twres,$twtmp
|
||
aesdec $rndkey1,$inout5
|
||
$movkey -32($key),$rndkey1
|
||
|
||
paddd $twres,$twres
|
||
aesdec $rndkey0,$inout0
|
||
pxor @tweak[5],@tweak[2]
|
||
psrad \$31,$twtmp
|
||
aesdec $rndkey0,$inout1
|
||
paddq @tweak[5],@tweak[5]
|
||
pand $twmask,$twtmp
|
||
aesdec $rndkey0,$inout2
|
||
aesdec $rndkey0,$inout3
|
||
aesdec $rndkey0,$inout4
|
||
pxor $twtmp,@tweak[5]
|
||
movaps @tweak[3],@tweak[4]
|
||
aesdec $rndkey0,$inout5
|
||
|
||
movdqa $twres,$rndkey0
|
||
paddd $twres,$twres
|
||
aesdec $rndkey1,$inout0
|
||
pxor @tweak[5],@tweak[3]
|
||
psrad \$31,$rndkey0
|
||
aesdec $rndkey1,$inout1
|
||
paddq @tweak[5],@tweak[5]
|
||
pand $twmask,$rndkey0
|
||
aesdec $rndkey1,$inout2
|
||
aesdec $rndkey1,$inout3
|
||
pxor $rndkey0,@tweak[5]
|
||
$movkey ($key_),$rndkey0
|
||
aesdec $rndkey1,$inout4
|
||
aesdec $rndkey1,$inout5
|
||
$movkey 16($key_),$rndkey1
|
||
|
||
pxor @tweak[5],@tweak[4]
|
||
aesdeclast `16*0`(%rsp),$inout0
|
||
psrad \$31,$twres
|
||
paddq @tweak[5],@tweak[5]
|
||
aesdeclast `16*1`(%rsp),$inout1
|
||
aesdeclast `16*2`(%rsp),$inout2
|
||
pand $twmask,$twres
|
||
mov %r10,%rax # restore $rounds
|
||
aesdeclast `16*3`(%rsp),$inout3
|
||
aesdeclast `16*4`(%rsp),$inout4
|
||
aesdeclast `16*5`(%rsp),$inout5
|
||
pxor $twres,@tweak[5]
|
||
|
||
lea `16*6`($out),$out # $out+=6*16
|
||
movups $inout0,`-16*6`($out) # store 6 output blocks
|
||
movups $inout1,`-16*5`($out)
|
||
movups $inout2,`-16*4`($out)
|
||
movups $inout3,`-16*3`($out)
|
||
movups $inout4,`-16*2`($out)
|
||
movups $inout5,`-16*1`($out)
|
||
sub \$16*6,$len
|
||
jnc .Lxts_dec_grandloop # loop if $len-=6*16 didn't borrow
|
||
|
||
mov \$16+96,$rounds
|
||
sub $rnds_,$rounds
|
||
mov $key_,$key # restore $key
|
||
shr \$4,$rounds # restore original value
|
||
|
||
.Lxts_dec_short:
|
||
# at the point @tweak[0..5] are populated with tweak values
|
||
mov $rounds,$rnds_ # backup $rounds
|
||
pxor $rndkey0,@tweak[0]
|
||
pxor $rndkey0,@tweak[1]
|
||
add \$16*6,$len # restore real remaining $len
|
||
jz .Lxts_dec_done # done if ($len==0)
|
||
|
||
pxor $rndkey0,@tweak[2]
|
||
cmp \$0x20,$len
|
||
jb .Lxts_dec_one # $len is 1*16
|
||
pxor $rndkey0,@tweak[3]
|
||
je .Lxts_dec_two # $len is 2*16
|
||
|
||
pxor $rndkey0,@tweak[4]
|
||
cmp \$0x40,$len
|
||
jb .Lxts_dec_three # $len is 3*16
|
||
je .Lxts_dec_four # $len is 4*16
|
||
|
||
movdqu ($inp),$inout0 # $len is 5*16
|
||
movdqu 16*1($inp),$inout1
|
||
movdqu 16*2($inp),$inout2
|
||
pxor @tweak[0],$inout0
|
||
movdqu 16*3($inp),$inout3
|
||
pxor @tweak[1],$inout1
|
||
movdqu 16*4($inp),$inout4
|
||
lea 16*5($inp),$inp # $inp+=5*16
|
||
pxor @tweak[2],$inout2
|
||
pxor @tweak[3],$inout3
|
||
pxor @tweak[4],$inout4
|
||
|
||
call _aesni_decrypt6
|
||
|
||
xorps @tweak[0],$inout0
|
||
xorps @tweak[1],$inout1
|
||
xorps @tweak[2],$inout2
|
||
movdqu $inout0,($out) # store 5 output blocks
|
||
xorps @tweak[3],$inout3
|
||
movdqu $inout1,16*1($out)
|
||
xorps @tweak[4],$inout4
|
||
movdqu $inout2,16*2($out)
|
||
pxor $twtmp,$twtmp
|
||
movdqu $inout3,16*3($out)
|
||
pcmpgtd @tweak[5],$twtmp
|
||
movdqu $inout4,16*4($out)
|
||
lea 16*5($out),$out # $out+=5*16
|
||
pshufd \$0x13,$twtmp,@tweak[1] # $twres
|
||
and \$15,$len_
|
||
jz .Lxts_dec_ret
|
||
|
||
movdqa @tweak[5],@tweak[0]
|
||
paddq @tweak[5],@tweak[5] # psllq 1,$tweak
|
||
pand $twmask,@tweak[1] # isolate carry and residue
|
||
pxor @tweak[5],@tweak[1]
|
||
jmp .Lxts_dec_done2
|
||
|
||
.align 16
|
||
.Lxts_dec_one:
|
||
movups ($inp),$inout0
|
||
lea 16*1($inp),$inp # $inp+=1*16
|
||
xorps @tweak[0],$inout0
|
||
___
|
||
&aesni_generate1("dec",$key,$rounds);
|
||
$code.=<<___;
|
||
xorps @tweak[0],$inout0
|
||
movdqa @tweak[1],@tweak[0]
|
||
movups $inout0,($out) # store one output block
|
||
movdqa @tweak[2],@tweak[1]
|
||
lea 16*1($out),$out # $out+=1*16
|
||
jmp .Lxts_dec_done
|
||
|
||
.align 16
|
||
.Lxts_dec_two:
|
||
movups ($inp),$inout0
|
||
movups 16($inp),$inout1
|
||
lea 32($inp),$inp # $inp+=2*16
|
||
xorps @tweak[0],$inout0
|
||
xorps @tweak[1],$inout1
|
||
|
||
call _aesni_decrypt2
|
||
|
||
xorps @tweak[0],$inout0
|
||
movdqa @tweak[2],@tweak[0]
|
||
xorps @tweak[1],$inout1
|
||
movdqa @tweak[3],@tweak[1]
|
||
movups $inout0,($out) # store 2 output blocks
|
||
movups $inout1,16*1($out)
|
||
lea 16*2($out),$out # $out+=2*16
|
||
jmp .Lxts_dec_done
|
||
|
||
.align 16
|
||
.Lxts_dec_three:
|
||
movups ($inp),$inout0
|
||
movups 16*1($inp),$inout1
|
||
movups 16*2($inp),$inout2
|
||
lea 16*3($inp),$inp # $inp+=3*16
|
||
xorps @tweak[0],$inout0
|
||
xorps @tweak[1],$inout1
|
||
xorps @tweak[2],$inout2
|
||
|
||
call _aesni_decrypt3
|
||
|
||
xorps @tweak[0],$inout0
|
||
movdqa @tweak[3],@tweak[0]
|
||
xorps @tweak[1],$inout1
|
||
movdqa @tweak[4],@tweak[1]
|
||
xorps @tweak[2],$inout2
|
||
movups $inout0,($out) # store 3 output blocks
|
||
movups $inout1,16*1($out)
|
||
movups $inout2,16*2($out)
|
||
lea 16*3($out),$out # $out+=3*16
|
||
jmp .Lxts_dec_done
|
||
|
||
.align 16
|
||
.Lxts_dec_four:
|
||
movups ($inp),$inout0
|
||
movups 16*1($inp),$inout1
|
||
movups 16*2($inp),$inout2
|
||
xorps @tweak[0],$inout0
|
||
movups 16*3($inp),$inout3
|
||
lea 16*4($inp),$inp # $inp+=4*16
|
||
xorps @tweak[1],$inout1
|
||
xorps @tweak[2],$inout2
|
||
xorps @tweak[3],$inout3
|
||
|
||
call _aesni_decrypt4
|
||
|
||
pxor @tweak[0],$inout0
|
||
movdqa @tweak[4],@tweak[0]
|
||
pxor @tweak[1],$inout1
|
||
movdqa @tweak[5],@tweak[1]
|
||
pxor @tweak[2],$inout2
|
||
movdqu $inout0,($out) # store 4 output blocks
|
||
pxor @tweak[3],$inout3
|
||
movdqu $inout1,16*1($out)
|
||
movdqu $inout2,16*2($out)
|
||
movdqu $inout3,16*3($out)
|
||
lea 16*4($out),$out # $out+=4*16
|
||
jmp .Lxts_dec_done
|
||
|
||
.align 16
|
||
.Lxts_dec_done:
|
||
and \$15,$len_ # see if $len%16 is 0
|
||
jz .Lxts_dec_ret
|
||
.Lxts_dec_done2:
|
||
mov $len_,$len
|
||
mov $key_,$key # restore $key
|
||
mov $rnds_,$rounds # restore $rounds
|
||
|
||
movups ($inp),$inout0
|
||
xorps @tweak[1],$inout0
|
||
___
|
||
&aesni_generate1("dec",$key,$rounds);
|
||
$code.=<<___;
|
||
xorps @tweak[1],$inout0
|
||
movups $inout0,($out)
|
||
|
||
.Lxts_dec_steal:
|
||
movzb 16($inp),%eax # borrow $rounds ...
|
||
movzb ($out),%ecx # ... and $key
|
||
lea 1($inp),$inp
|
||
mov %al,($out)
|
||
mov %cl,16($out)
|
||
lea 1($out),$out
|
||
sub \$1,$len
|
||
jnz .Lxts_dec_steal
|
||
|
||
sub $len_,$out # rewind $out
|
||
mov $key_,$key # restore $key
|
||
mov $rnds_,$rounds # restore $rounds
|
||
|
||
movups ($out),$inout0
|
||
xorps @tweak[0],$inout0
|
||
___
|
||
&aesni_generate1("dec",$key,$rounds);
|
||
$code.=<<___;
|
||
xorps @tweak[0],$inout0
|
||
movups $inout0,($out)
|
||
|
||
.Lxts_dec_ret:
|
||
xorps %xmm0,%xmm0 # clear register bank
|
||
pxor %xmm1,%xmm1
|
||
pxor %xmm2,%xmm2
|
||
pxor %xmm3,%xmm3
|
||
pxor %xmm4,%xmm4
|
||
pxor %xmm5,%xmm5
|
||
___
|
||
$code.=<<___ if (!$win64);
|
||
pxor %xmm6,%xmm6
|
||
pxor %xmm7,%xmm7
|
||
movaps %xmm0,0x00(%rsp) # clear stack
|
||
pxor %xmm8,%xmm8
|
||
movaps %xmm0,0x10(%rsp)
|
||
pxor %xmm9,%xmm9
|
||
movaps %xmm0,0x20(%rsp)
|
||
pxor %xmm10,%xmm10
|
||
movaps %xmm0,0x30(%rsp)
|
||
pxor %xmm11,%xmm11
|
||
movaps %xmm0,0x40(%rsp)
|
||
pxor %xmm12,%xmm12
|
||
movaps %xmm0,0x50(%rsp)
|
||
pxor %xmm13,%xmm13
|
||
movaps %xmm0,0x60(%rsp)
|
||
pxor %xmm14,%xmm14
|
||
pxor %xmm15,%xmm15
|
||
___
|
||
$code.=<<___ if ($win64);
|
||
movaps -0xa0(%rbp),%xmm6
|
||
movaps %xmm0,-0xa0(%rbp) # clear stack
|
||
movaps -0x90(%rbp),%xmm7
|
||
movaps %xmm0,-0x90(%rbp)
|
||
movaps -0x80(%rbp),%xmm8
|
||
movaps %xmm0,-0x80(%rbp)
|
||
movaps -0x70(%rbp),%xmm9
|
||
movaps %xmm0,-0x70(%rbp)
|
||
movaps -0x60(%rbp),%xmm10
|
||
movaps %xmm0,-0x60(%rbp)
|
||
movaps -0x50(%rbp),%xmm11
|
||
movaps %xmm0,-0x50(%rbp)
|
||
movaps -0x40(%rbp),%xmm12
|
||
movaps %xmm0,-0x40(%rbp)
|
||
movaps -0x30(%rbp),%xmm13
|
||
movaps %xmm0,-0x30(%rbp)
|
||
movaps -0x20(%rbp),%xmm14
|
||
movaps %xmm0,-0x20(%rbp)
|
||
movaps -0x10(%rbp),%xmm15
|
||
movaps %xmm0,-0x10(%rbp)
|
||
movaps %xmm0,0x00(%rsp)
|
||
movaps %xmm0,0x10(%rsp)
|
||
movaps %xmm0,0x20(%rsp)
|
||
movaps %xmm0,0x30(%rsp)
|
||
movaps %xmm0,0x40(%rsp)
|
||
movaps %xmm0,0x50(%rsp)
|
||
movaps %xmm0,0x60(%rsp)
|
||
___
|
||
$code.=<<___;
|
||
lea (%rbp),%rsp
|
||
pop %rbp
|
||
.Lxts_dec_epilogue:
|
||
ret
|
||
.size aesni_xts_decrypt,.-aesni_xts_decrypt
|
||
___
|
||
} }}
|
||
|
||
########################################################################
|
||
# void $PREFIX_cbc_encrypt (const void *inp, void *out,
|
||
# size_t length, const AES_KEY *key,
|
||
# unsigned char *ivp,const int enc);
|
||
{
|
||
my $frame_size = 0x10 + ($win64?0xa0:0); # used in decrypt
|
||
my ($iv,$in0,$in1,$in2,$in3,$in4)=map("%xmm$_",(10..15));
|
||
my $inp_=$key_;
|
||
|
||
$code.=<<___;
|
||
.globl ${PREFIX}_cbc_encrypt
|
||
.type ${PREFIX}_cbc_encrypt,\@function,6
|
||
.align 16
|
||
${PREFIX}_cbc_encrypt:
|
||
test $len,$len # check length
|
||
jz .Lcbc_ret
|
||
|
||
mov 240($key),$rnds_ # key->rounds
|
||
mov $key,$key_ # backup $key
|
||
test %r9d,%r9d # 6th argument
|
||
jz .Lcbc_decrypt
|
||
#--------------------------- CBC ENCRYPT ------------------------------#
|
||
movups ($ivp),$inout0 # load iv as initial state
|
||
mov $rnds_,$rounds
|
||
cmp \$16,$len
|
||
jb .Lcbc_enc_tail
|
||
sub \$16,$len
|
||
jmp .Lcbc_enc_loop
|
||
.align 16
|
||
.Lcbc_enc_loop:
|
||
movups ($inp),$inout1 # load input
|
||
lea 16($inp),$inp
|
||
#xorps $inout1,$inout0
|
||
___
|
||
&aesni_generate1("enc",$key,$rounds,$inout0,$inout1);
|
||
$code.=<<___;
|
||
mov $rnds_,$rounds # restore $rounds
|
||
mov $key_,$key # restore $key
|
||
movups $inout0,0($out) # store output
|
||
lea 16($out),$out
|
||
sub \$16,$len
|
||
jnc .Lcbc_enc_loop
|
||
add \$16,$len
|
||
jnz .Lcbc_enc_tail
|
||
pxor $rndkey0,$rndkey0 # clear register bank
|
||
pxor $rndkey1,$rndkey1
|
||
movups $inout0,($ivp)
|
||
pxor $inout0,$inout0
|
||
pxor $inout1,$inout1
|
||
jmp .Lcbc_ret
|
||
|
||
.Lcbc_enc_tail:
|
||
mov $len,%rcx # zaps $key
|
||
xchg $inp,$out # $inp is %rsi and $out is %rdi now
|
||
.long 0x9066A4F3 # rep movsb
|
||
mov \$16,%ecx # zero tail
|
||
sub $len,%rcx
|
||
xor %eax,%eax
|
||
.long 0x9066AAF3 # rep stosb
|
||
lea -16(%rdi),%rdi # rewind $out by 1 block
|
||
mov $rnds_,$rounds # restore $rounds
|
||
mov %rdi,%rsi # $inp and $out are the same
|
||
mov $key_,$key # restore $key
|
||
xor $len,$len # len=16
|
||
jmp .Lcbc_enc_loop # one more spin
|
||
#--------------------------- CBC DECRYPT ------------------------------#
|
||
.align 16
|
||
.Lcbc_decrypt:
|
||
cmp \$16,$len
|
||
jne .Lcbc_decrypt_bulk
|
||
|
||
# handle single block without allocating stack frame,
|
||
# useful in ciphertext stealing mode
|
||
movdqu ($inp),$inout0 # load input
|
||
movdqu ($ivp),$inout1 # load iv
|
||
movdqa $inout0,$inout2 # future iv
|
||
___
|
||
&aesni_generate1("dec",$key,$rnds_);
|
||
$code.=<<___;
|
||
pxor $rndkey0,$rndkey0 # clear register bank
|
||
pxor $rndkey1,$rndkey1
|
||
movdqu $inout2,($ivp) # store iv
|
||
xorps $inout1,$inout0 # ^=iv
|
||
pxor $inout1,$inout1
|
||
movups $inout0,($out) # store output
|
||
pxor $inout0,$inout0
|
||
jmp .Lcbc_ret
|
||
.align 16
|
||
.Lcbc_decrypt_bulk:
|
||
lea (%rsp),%rax
|
||
push %rbp
|
||
sub \$$frame_size,%rsp
|
||
and \$-16,%rsp # Linux kernel stack can be incorrectly seeded
|
||
___
|
||
$code.=<<___ if ($win64);
|
||
movaps %xmm6,0x10(%rsp)
|
||
movaps %xmm7,0x20(%rsp)
|
||
movaps %xmm8,0x30(%rsp)
|
||
movaps %xmm9,0x40(%rsp)
|
||
movaps %xmm10,0x50(%rsp)
|
||
movaps %xmm11,0x60(%rsp)
|
||
movaps %xmm12,0x70(%rsp)
|
||
movaps %xmm13,0x80(%rsp)
|
||
movaps %xmm14,0x90(%rsp)
|
||
movaps %xmm15,0xa0(%rsp)
|
||
.Lcbc_decrypt_body:
|
||
___
|
||
$code.=<<___;
|
||
lea -8(%rax),%rbp
|
||
movups ($ivp),$iv
|
||
mov $rnds_,$rounds
|
||
cmp \$0x50,$len
|
||
jbe .Lcbc_dec_tail
|
||
|
||
$movkey ($key),$rndkey0
|
||
movdqu 0x00($inp),$inout0 # load input
|
||
movdqu 0x10($inp),$inout1
|
||
movdqa $inout0,$in0
|
||
movdqu 0x20($inp),$inout2
|
||
movdqa $inout1,$in1
|
||
movdqu 0x30($inp),$inout3
|
||
movdqa $inout2,$in2
|
||
movdqu 0x40($inp),$inout4
|
||
movdqa $inout3,$in3
|
||
movdqu 0x50($inp),$inout5
|
||
movdqa $inout4,$in4
|
||
mov OPENSSL_ia32cap_P+4(%rip),%r9d
|
||
cmp \$0x70,$len
|
||
jbe .Lcbc_dec_six_or_seven
|
||
|
||
and \$`1<<26|1<<22`,%r9d # isolate XSAVE+MOVBE
|
||
sub \$0x50,$len # $len is biased by -5*16
|
||
cmp \$`1<<22`,%r9d # check for MOVBE without XSAVE
|
||
je .Lcbc_dec_loop6_enter # [which denotes Atom Silvermont]
|
||
sub \$0x20,$len # $len is biased by -7*16
|
||
lea 0x70($key),$key # size optimization
|
||
jmp .Lcbc_dec_loop8_enter
|
||
.align 16
|
||
.Lcbc_dec_loop8:
|
||
movups $inout7,($out)
|
||
lea 0x10($out),$out
|
||
.Lcbc_dec_loop8_enter:
|
||
movdqu 0x60($inp),$inout6
|
||
pxor $rndkey0,$inout0
|
||
movdqu 0x70($inp),$inout7
|
||
pxor $rndkey0,$inout1
|
||
$movkey 0x10-0x70($key),$rndkey1
|
||
pxor $rndkey0,$inout2
|
||
xor $inp_,$inp_
|
||
cmp \$0x70,$len # is there at least 0x60 bytes ahead?
|
||
pxor $rndkey0,$inout3
|
||
pxor $rndkey0,$inout4
|
||
pxor $rndkey0,$inout5
|
||
pxor $rndkey0,$inout6
|
||
|
||
aesdec $rndkey1,$inout0
|
||
pxor $rndkey0,$inout7
|
||
$movkey 0x20-0x70($key),$rndkey0
|
||
aesdec $rndkey1,$inout1
|
||
aesdec $rndkey1,$inout2
|
||
aesdec $rndkey1,$inout3
|
||
aesdec $rndkey1,$inout4
|
||
aesdec $rndkey1,$inout5
|
||
aesdec $rndkey1,$inout6
|
||
setnc ${inp_}b
|
||
shl \$7,$inp_
|
||
aesdec $rndkey1,$inout7
|
||
add $inp,$inp_
|
||
$movkey 0x30-0x70($key),$rndkey1
|
||
___
|
||
for($i=1;$i<12;$i++) {
|
||
my $rndkeyx = ($i&1)?$rndkey0:$rndkey1;
|
||
$code.=<<___ if ($i==7);
|
||
cmp \$11,$rounds
|
||
___
|
||
$code.=<<___;
|
||
aesdec $rndkeyx,$inout0
|
||
aesdec $rndkeyx,$inout1
|
||
aesdec $rndkeyx,$inout2
|
||
aesdec $rndkeyx,$inout3
|
||
aesdec $rndkeyx,$inout4
|
||
aesdec $rndkeyx,$inout5
|
||
aesdec $rndkeyx,$inout6
|
||
aesdec $rndkeyx,$inout7
|
||
$movkey `0x30+0x10*$i`-0x70($key),$rndkeyx
|
||
___
|
||
$code.=<<___ if ($i<6 || (!($i&1) && $i>7));
|
||
nop
|
||
___
|
||
$code.=<<___ if ($i==7);
|
||
jb .Lcbc_dec_done
|
||
___
|
||
$code.=<<___ if ($i==9);
|
||
je .Lcbc_dec_done
|
||
___
|
||
$code.=<<___ if ($i==11);
|
||
jmp .Lcbc_dec_done
|
||
___
|
||
}
|
||
$code.=<<___;
|
||
.align 16
|
||
.Lcbc_dec_done:
|
||
aesdec $rndkey1,$inout0
|
||
aesdec $rndkey1,$inout1
|
||
pxor $rndkey0,$iv
|
||
pxor $rndkey0,$in0
|
||
aesdec $rndkey1,$inout2
|
||
aesdec $rndkey1,$inout3
|
||
pxor $rndkey0,$in1
|
||
pxor $rndkey0,$in2
|
||
aesdec $rndkey1,$inout4
|
||
aesdec $rndkey1,$inout5
|
||
pxor $rndkey0,$in3
|
||
pxor $rndkey0,$in4
|
||
aesdec $rndkey1,$inout6
|
||
aesdec $rndkey1,$inout7
|
||
movdqu 0x50($inp),$rndkey1
|
||
|
||
aesdeclast $iv,$inout0
|
||
movdqu 0x60($inp),$iv # borrow $iv
|
||
pxor $rndkey0,$rndkey1
|
||
aesdeclast $in0,$inout1
|
||
pxor $rndkey0,$iv
|
||
movdqu 0x70($inp),$rndkey0 # next IV
|
||
aesdeclast $in1,$inout2
|
||
lea 0x80($inp),$inp
|
||
movdqu 0x00($inp_),$in0
|
||
aesdeclast $in2,$inout3
|
||
aesdeclast $in3,$inout4
|
||
movdqu 0x10($inp_),$in1
|
||
movdqu 0x20($inp_),$in2
|
||
aesdeclast $in4,$inout5
|
||
aesdeclast $rndkey1,$inout6
|
||
movdqu 0x30($inp_),$in3
|
||
movdqu 0x40($inp_),$in4
|
||
aesdeclast $iv,$inout7
|
||
movdqa $rndkey0,$iv # return $iv
|
||
movdqu 0x50($inp_),$rndkey1
|
||
$movkey -0x70($key),$rndkey0
|
||
|
||
movups $inout0,($out) # store output
|
||
movdqa $in0,$inout0
|
||
movups $inout1,0x10($out)
|
||
movdqa $in1,$inout1
|
||
movups $inout2,0x20($out)
|
||
movdqa $in2,$inout2
|
||
movups $inout3,0x30($out)
|
||
movdqa $in3,$inout3
|
||
movups $inout4,0x40($out)
|
||
movdqa $in4,$inout4
|
||
movups $inout5,0x50($out)
|
||
movdqa $rndkey1,$inout5
|
||
movups $inout6,0x60($out)
|
||
lea 0x70($out),$out
|
||
|
||
sub \$0x80,$len
|
||
ja .Lcbc_dec_loop8
|
||
|
||
movaps $inout7,$inout0
|
||
lea -0x70($key),$key
|
||
add \$0x70,$len
|
||
jle .Lcbc_dec_clear_tail_collected
|
||
movups $inout7,($out)
|
||
lea 0x10($out),$out
|
||
cmp \$0x50,$len
|
||
jbe .Lcbc_dec_tail
|
||
|
||
movaps $in0,$inout0
|
||
.Lcbc_dec_six_or_seven:
|
||
cmp \$0x60,$len
|
||
ja .Lcbc_dec_seven
|
||
|
||
movaps $inout5,$inout6
|
||
call _aesni_decrypt6
|
||
pxor $iv,$inout0 # ^= IV
|
||
movaps $inout6,$iv
|
||
pxor $in0,$inout1
|
||
movdqu $inout0,($out)
|
||
pxor $in1,$inout2
|
||
movdqu $inout1,0x10($out)
|
||
pxor $inout1,$inout1 # clear register bank
|
||
pxor $in2,$inout3
|
||
movdqu $inout2,0x20($out)
|
||
pxor $inout2,$inout2
|
||
pxor $in3,$inout4
|
||
movdqu $inout3,0x30($out)
|
||
pxor $inout3,$inout3
|
||
pxor $in4,$inout5
|
||
movdqu $inout4,0x40($out)
|
||
pxor $inout4,$inout4
|
||
lea 0x50($out),$out
|
||
movdqa $inout5,$inout0
|
||
pxor $inout5,$inout5
|
||
jmp .Lcbc_dec_tail_collected
|
||
|
||
.align 16
|
||
.Lcbc_dec_seven:
|
||
movups 0x60($inp),$inout6
|
||
xorps $inout7,$inout7
|
||
call _aesni_decrypt8
|
||
movups 0x50($inp),$inout7
|
||
pxor $iv,$inout0 # ^= IV
|
||
movups 0x60($inp),$iv
|
||
pxor $in0,$inout1
|
||
movdqu $inout0,($out)
|
||
pxor $in1,$inout2
|
||
movdqu $inout1,0x10($out)
|
||
pxor $inout1,$inout1 # clear register bank
|
||
pxor $in2,$inout3
|
||
movdqu $inout2,0x20($out)
|
||
pxor $inout2,$inout2
|
||
pxor $in3,$inout4
|
||
movdqu $inout3,0x30($out)
|
||
pxor $inout3,$inout3
|
||
pxor $in4,$inout5
|
||
movdqu $inout4,0x40($out)
|
||
pxor $inout4,$inout4
|
||
pxor $inout7,$inout6
|
||
movdqu $inout5,0x50($out)
|
||
pxor $inout5,$inout5
|
||
lea 0x60($out),$out
|
||
movdqa $inout6,$inout0
|
||
pxor $inout6,$inout6
|
||
pxor $inout7,$inout7
|
||
jmp .Lcbc_dec_tail_collected
|
||
|
||
.align 16
|
||
.Lcbc_dec_loop6:
|
||
movups $inout5,($out)
|
||
lea 0x10($out),$out
|
||
movdqu 0x00($inp),$inout0 # load input
|
||
movdqu 0x10($inp),$inout1
|
||
movdqa $inout0,$in0
|
||
movdqu 0x20($inp),$inout2
|
||
movdqa $inout1,$in1
|
||
movdqu 0x30($inp),$inout3
|
||
movdqa $inout2,$in2
|
||
movdqu 0x40($inp),$inout4
|
||
movdqa $inout3,$in3
|
||
movdqu 0x50($inp),$inout5
|
||
movdqa $inout4,$in4
|
||
.Lcbc_dec_loop6_enter:
|
||
lea 0x60($inp),$inp
|
||
movdqa $inout5,$inout6
|
||
|
||
call _aesni_decrypt6
|
||
|
||
pxor $iv,$inout0 # ^= IV
|
||
movdqa $inout6,$iv
|
||
pxor $in0,$inout1
|
||
movdqu $inout0,($out)
|
||
pxor $in1,$inout2
|
||
movdqu $inout1,0x10($out)
|
||
pxor $in2,$inout3
|
||
movdqu $inout2,0x20($out)
|
||
pxor $in3,$inout4
|
||
mov $key_,$key
|
||
movdqu $inout3,0x30($out)
|
||
pxor $in4,$inout5
|
||
mov $rnds_,$rounds
|
||
movdqu $inout4,0x40($out)
|
||
lea 0x50($out),$out
|
||
sub \$0x60,$len
|
||
ja .Lcbc_dec_loop6
|
||
|
||
movdqa $inout5,$inout0
|
||
add \$0x50,$len
|
||
jle .Lcbc_dec_clear_tail_collected
|
||
movups $inout5,($out)
|
||
lea 0x10($out),$out
|
||
|
||
.Lcbc_dec_tail:
|
||
movups ($inp),$inout0
|
||
sub \$0x10,$len
|
||
jbe .Lcbc_dec_one # $len is 1*16 or less
|
||
|
||
movups 0x10($inp),$inout1
|
||
movaps $inout0,$in0
|
||
sub \$0x10,$len
|
||
jbe .Lcbc_dec_two # $len is 2*16 or less
|
||
|
||
movups 0x20($inp),$inout2
|
||
movaps $inout1,$in1
|
||
sub \$0x10,$len
|
||
jbe .Lcbc_dec_three # $len is 3*16 or less
|
||
|
||
movups 0x30($inp),$inout3
|
||
movaps $inout2,$in2
|
||
sub \$0x10,$len
|
||
jbe .Lcbc_dec_four # $len is 4*16 or less
|
||
|
||
movups 0x40($inp),$inout4 # $len is 5*16 or less
|
||
movaps $inout3,$in3
|
||
movaps $inout4,$in4
|
||
xorps $inout5,$inout5
|
||
call _aesni_decrypt6
|
||
pxor $iv,$inout0
|
||
movaps $in4,$iv
|
||
pxor $in0,$inout1
|
||
movdqu $inout0,($out)
|
||
pxor $in1,$inout2
|
||
movdqu $inout1,0x10($out)
|
||
pxor $inout1,$inout1 # clear register bank
|
||
pxor $in2,$inout3
|
||
movdqu $inout2,0x20($out)
|
||
pxor $inout2,$inout2
|
||
pxor $in3,$inout4
|
||
movdqu $inout3,0x30($out)
|
||
pxor $inout3,$inout3
|
||
lea 0x40($out),$out
|
||
movdqa $inout4,$inout0
|
||
pxor $inout4,$inout4
|
||
pxor $inout5,$inout5
|
||
sub \$0x10,$len
|
||
jmp .Lcbc_dec_tail_collected
|
||
|
||
.align 16
|
||
.Lcbc_dec_one:
|
||
movaps $inout0,$in0
|
||
___
|
||
&aesni_generate1("dec",$key,$rounds);
|
||
$code.=<<___;
|
||
xorps $iv,$inout0
|
||
movaps $in0,$iv
|
||
jmp .Lcbc_dec_tail_collected
|
||
.align 16
|
||
.Lcbc_dec_two:
|
||
movaps $inout1,$in1
|
||
call _aesni_decrypt2
|
||
pxor $iv,$inout0
|
||
movaps $in1,$iv
|
||
pxor $in0,$inout1
|
||
movdqu $inout0,($out)
|
||
movdqa $inout1,$inout0
|
||
pxor $inout1,$inout1 # clear register bank
|
||
lea 0x10($out),$out
|
||
jmp .Lcbc_dec_tail_collected
|
||
.align 16
|
||
.Lcbc_dec_three:
|
||
movaps $inout2,$in2
|
||
call _aesni_decrypt3
|
||
pxor $iv,$inout0
|
||
movaps $in2,$iv
|
||
pxor $in0,$inout1
|
||
movdqu $inout0,($out)
|
||
pxor $in1,$inout2
|
||
movdqu $inout1,0x10($out)
|
||
pxor $inout1,$inout1 # clear register bank
|
||
movdqa $inout2,$inout0
|
||
pxor $inout2,$inout2
|
||
lea 0x20($out),$out
|
||
jmp .Lcbc_dec_tail_collected
|
||
.align 16
|
||
.Lcbc_dec_four:
|
||
movaps $inout3,$in3
|
||
call _aesni_decrypt4
|
||
pxor $iv,$inout0
|
||
movaps $in3,$iv
|
||
pxor $in0,$inout1
|
||
movdqu $inout0,($out)
|
||
pxor $in1,$inout2
|
||
movdqu $inout1,0x10($out)
|
||
pxor $inout1,$inout1 # clear register bank
|
||
pxor $in2,$inout3
|
||
movdqu $inout2,0x20($out)
|
||
pxor $inout2,$inout2
|
||
movdqa $inout3,$inout0
|
||
pxor $inout3,$inout3
|
||
lea 0x30($out),$out
|
||
jmp .Lcbc_dec_tail_collected
|
||
|
||
.align 16
|
||
.Lcbc_dec_clear_tail_collected:
|
||
pxor $inout1,$inout1 # clear register bank
|
||
pxor $inout2,$inout2
|
||
pxor $inout3,$inout3
|
||
___
|
||
$code.=<<___ if (!$win64);
|
||
pxor $inout4,$inout4 # %xmm6..9
|
||
pxor $inout5,$inout5
|
||
pxor $inout6,$inout6
|
||
pxor $inout7,$inout7
|
||
___
|
||
$code.=<<___;
|
||
.Lcbc_dec_tail_collected:
|
||
movups $iv,($ivp)
|
||
and \$15,$len
|
||
jnz .Lcbc_dec_tail_partial
|
||
movups $inout0,($out)
|
||
pxor $inout0,$inout0
|
||
jmp .Lcbc_dec_ret
|
||
.align 16
|
||
.Lcbc_dec_tail_partial:
|
||
movaps $inout0,(%rsp)
|
||
pxor $inout0,$inout0
|
||
mov \$16,%rcx
|
||
mov $out,%rdi
|
||
sub $len,%rcx
|
||
lea (%rsp),%rsi
|
||
.long 0x9066A4F3 # rep movsb
|
||
movdqa $inout0,(%rsp)
|
||
|
||
.Lcbc_dec_ret:
|
||
xorps $rndkey0,$rndkey0 # %xmm0
|
||
pxor $rndkey1,$rndkey1
|
||
___
|
||
$code.=<<___ if ($win64);
|
||
movaps 0x10(%rsp),%xmm6
|
||
movaps %xmm0,0x10(%rsp) # clear stack
|
||
movaps 0x20(%rsp),%xmm7
|
||
movaps %xmm0,0x20(%rsp)
|
||
movaps 0x30(%rsp),%xmm8
|
||
movaps %xmm0,0x30(%rsp)
|
||
movaps 0x40(%rsp),%xmm9
|
||
movaps %xmm0,0x40(%rsp)
|
||
movaps 0x50(%rsp),%xmm10
|
||
movaps %xmm0,0x50(%rsp)
|
||
movaps 0x60(%rsp),%xmm11
|
||
movaps %xmm0,0x60(%rsp)
|
||
movaps 0x70(%rsp),%xmm12
|
||
movaps %xmm0,0x70(%rsp)
|
||
movaps 0x80(%rsp),%xmm13
|
||
movaps %xmm0,0x80(%rsp)
|
||
movaps 0x90(%rsp),%xmm14
|
||
movaps %xmm0,0x90(%rsp)
|
||
movaps 0xa0(%rsp),%xmm15
|
||
movaps %xmm0,0xa0(%rsp)
|
||
___
|
||
$code.=<<___;
|
||
lea (%rbp),%rsp
|
||
pop %rbp
|
||
.Lcbc_ret:
|
||
ret
|
||
.size ${PREFIX}_cbc_encrypt,.-${PREFIX}_cbc_encrypt
|
||
___
|
||
}
|
||
# int ${PREFIX}_set_decrypt_key(const unsigned char *inp,
|
||
# int bits, AES_KEY *key)
|
||
#
|
||
# input: $inp user-supplied key
|
||
# $bits $inp length in bits
|
||
# $key pointer to key schedule
|
||
# output: %eax 0 denoting success, -1 or -2 - failure (see C)
|
||
# *$key key schedule
|
||
#
|
||
{ my ($inp,$bits,$key) = @_4args;
|
||
$bits =~ s/%r/%e/;
|
||
|
||
$code.=<<___;
|
||
.globl ${PREFIX}_set_decrypt_key
|
||
.type ${PREFIX}_set_decrypt_key,\@abi-omnipotent
|
||
.align 16
|
||
${PREFIX}_set_decrypt_key:
|
||
.byte 0x48,0x83,0xEC,0x08 # sub rsp,8
|
||
call __aesni_set_encrypt_key
|
||
shl \$4,$bits # rounds-1 after _aesni_set_encrypt_key
|
||
test %eax,%eax
|
||
jnz .Ldec_key_ret
|
||
lea 16($key,$bits),$inp # points at the end of key schedule
|
||
|
||
$movkey ($key),%xmm0 # just swap
|
||
$movkey ($inp),%xmm1
|
||
$movkey %xmm0,($inp)
|
||
$movkey %xmm1,($key)
|
||
lea 16($key),$key
|
||
lea -16($inp),$inp
|
||
|
||
.Ldec_key_inverse:
|
||
$movkey ($key),%xmm0 # swap and inverse
|
||
$movkey ($inp),%xmm1
|
||
aesimc %xmm0,%xmm0
|
||
aesimc %xmm1,%xmm1
|
||
lea 16($key),$key
|
||
lea -16($inp),$inp
|
||
$movkey %xmm0,16($inp)
|
||
$movkey %xmm1,-16($key)
|
||
cmp $key,$inp
|
||
ja .Ldec_key_inverse
|
||
|
||
$movkey ($key),%xmm0 # inverse middle
|
||
aesimc %xmm0,%xmm0
|
||
pxor %xmm1,%xmm1
|
||
$movkey %xmm0,($inp)
|
||
pxor %xmm0,%xmm0
|
||
.Ldec_key_ret:
|
||
add \$8,%rsp
|
||
ret
|
||
.LSEH_end_set_decrypt_key:
|
||
.size ${PREFIX}_set_decrypt_key,.-${PREFIX}_set_decrypt_key
|
||
___
|
||
|
||
# This is based on submission by
|
||
#
|
||
# Huang Ying <ying.huang@intel.com>
|
||
# Vinodh Gopal <vinodh.gopal@intel.com>
|
||
# Kahraman Akdemir
|
||
#
|
||
# Agressively optimized in respect to aeskeygenassist's critical path
|
||
# and is contained in %xmm0-5 to meet Win64 ABI requirement.
|
||
#
|
||
# int ${PREFIX}_set_encrypt_key(const unsigned char *inp,
|
||
# int bits, AES_KEY * const key);
|
||
#
|
||
# input: $inp user-supplied key
|
||
# $bits $inp length in bits
|
||
# $key pointer to key schedule
|
||
# output: %eax 0 denoting success, -1 or -2 - failure (see C)
|
||
# $bits rounds-1 (used in aesni_set_decrypt_key)
|
||
# *$key key schedule
|
||
# $key pointer to key schedule (used in
|
||
# aesni_set_decrypt_key)
|
||
#
|
||
# Subroutine is frame-less, which means that only volatile registers
|
||
# are used. Note that it's declared "abi-omnipotent", which means that
|
||
# amount of volatile registers is smaller on Windows.
|
||
#
|
||
$code.=<<___;
|
||
.globl ${PREFIX}_set_encrypt_key
|
||
.type ${PREFIX}_set_encrypt_key,\@abi-omnipotent
|
||
.align 16
|
||
${PREFIX}_set_encrypt_key:
|
||
__aesni_set_encrypt_key:
|
||
.byte 0x48,0x83,0xEC,0x08 # sub rsp,8
|
||
mov \$-1,%rax
|
||
test $inp,$inp
|
||
jz .Lenc_key_ret
|
||
test $key,$key
|
||
jz .Lenc_key_ret
|
||
|
||
mov \$`1<<28|1<<11`,%r10d # AVX and XOP bits
|
||
movups ($inp),%xmm0 # pull first 128 bits of *userKey
|
||
xorps %xmm4,%xmm4 # low dword of xmm4 is assumed 0
|
||
and OPENSSL_ia32cap_P+4(%rip),%r10d
|
||
lea 16($key),%rax # %rax is used as modifiable copy of $key
|
||
cmp \$256,$bits
|
||
je .L14rounds
|
||
cmp \$192,$bits
|
||
je .L12rounds
|
||
cmp \$128,$bits
|
||
jne .Lbad_keybits
|
||
|
||
.L10rounds:
|
||
mov \$9,$bits # 10 rounds for 128-bit key
|
||
cmp \$`1<<28`,%r10d # AVX, bit no XOP
|
||
je .L10rounds_alt
|
||
|
||
$movkey %xmm0,($key) # round 0
|
||
aeskeygenassist \$0x1,%xmm0,%xmm1 # round 1
|
||
call .Lkey_expansion_128_cold
|
||
aeskeygenassist \$0x2,%xmm0,%xmm1 # round 2
|
||
call .Lkey_expansion_128
|
||
aeskeygenassist \$0x4,%xmm0,%xmm1 # round 3
|
||
call .Lkey_expansion_128
|
||
aeskeygenassist \$0x8,%xmm0,%xmm1 # round 4
|
||
call .Lkey_expansion_128
|
||
aeskeygenassist \$0x10,%xmm0,%xmm1 # round 5
|
||
call .Lkey_expansion_128
|
||
aeskeygenassist \$0x20,%xmm0,%xmm1 # round 6
|
||
call .Lkey_expansion_128
|
||
aeskeygenassist \$0x40,%xmm0,%xmm1 # round 7
|
||
call .Lkey_expansion_128
|
||
aeskeygenassist \$0x80,%xmm0,%xmm1 # round 8
|
||
call .Lkey_expansion_128
|
||
aeskeygenassist \$0x1b,%xmm0,%xmm1 # round 9
|
||
call .Lkey_expansion_128
|
||
aeskeygenassist \$0x36,%xmm0,%xmm1 # round 10
|
||
call .Lkey_expansion_128
|
||
$movkey %xmm0,(%rax)
|
||
mov $bits,80(%rax) # 240(%rdx)
|
||
xor %eax,%eax
|
||
jmp .Lenc_key_ret
|
||
|
||
.align 16
|
||
.L10rounds_alt:
|
||
movdqa .Lkey_rotate(%rip),%xmm5
|
||
mov \$8,%r10d
|
||
movdqa .Lkey_rcon1(%rip),%xmm4
|
||
movdqa %xmm0,%xmm2
|
||
movdqu %xmm0,($key)
|
||
jmp .Loop_key128
|
||
|
||
.align 16
|
||
.Loop_key128:
|
||
pshufb %xmm5,%xmm0
|
||
aesenclast %xmm4,%xmm0
|
||
pslld \$1,%xmm4
|
||
lea 16(%rax),%rax
|
||
|
||
movdqa %xmm2,%xmm3
|
||
pslldq \$4,%xmm2
|
||
pxor %xmm2,%xmm3
|
||
pslldq \$4,%xmm2
|
||
pxor %xmm2,%xmm3
|
||
pslldq \$4,%xmm2
|
||
pxor %xmm3,%xmm2
|
||
|
||
pxor %xmm2,%xmm0
|
||
movdqu %xmm0,-16(%rax)
|
||
movdqa %xmm0,%xmm2
|
||
|
||
dec %r10d
|
||
jnz .Loop_key128
|
||
|
||
movdqa .Lkey_rcon1b(%rip),%xmm4
|
||
|
||
pshufb %xmm5,%xmm0
|
||
aesenclast %xmm4,%xmm0
|
||
pslld \$1,%xmm4
|
||
|
||
movdqa %xmm2,%xmm3
|
||
pslldq \$4,%xmm2
|
||
pxor %xmm2,%xmm3
|
||
pslldq \$4,%xmm2
|
||
pxor %xmm2,%xmm3
|
||
pslldq \$4,%xmm2
|
||
pxor %xmm3,%xmm2
|
||
|
||
pxor %xmm2,%xmm0
|
||
movdqu %xmm0,(%rax)
|
||
|
||
movdqa %xmm0,%xmm2
|
||
pshufb %xmm5,%xmm0
|
||
aesenclast %xmm4,%xmm0
|
||
|
||
movdqa %xmm2,%xmm3
|
||
pslldq \$4,%xmm2
|
||
pxor %xmm2,%xmm3
|
||
pslldq \$4,%xmm2
|
||
pxor %xmm2,%xmm3
|
||
pslldq \$4,%xmm2
|
||
pxor %xmm3,%xmm2
|
||
|
||
pxor %xmm2,%xmm0
|
||
movdqu %xmm0,16(%rax)
|
||
|
||
mov $bits,96(%rax) # 240($key)
|
||
xor %eax,%eax
|
||
jmp .Lenc_key_ret
|
||
|
||
.align 16
|
||
.L12rounds:
|
||
movq 16($inp),%xmm2 # remaining 1/3 of *userKey
|
||
mov \$11,$bits # 12 rounds for 192
|
||
cmp \$`1<<28`,%r10d # AVX, but no XOP
|
||
je .L12rounds_alt
|
||
|
||
$movkey %xmm0,($key) # round 0
|
||
aeskeygenassist \$0x1,%xmm2,%xmm1 # round 1,2
|
||
call .Lkey_expansion_192a_cold
|
||
aeskeygenassist \$0x2,%xmm2,%xmm1 # round 2,3
|
||
call .Lkey_expansion_192b
|
||
aeskeygenassist \$0x4,%xmm2,%xmm1 # round 4,5
|
||
call .Lkey_expansion_192a
|
||
aeskeygenassist \$0x8,%xmm2,%xmm1 # round 5,6
|
||
call .Lkey_expansion_192b
|
||
aeskeygenassist \$0x10,%xmm2,%xmm1 # round 7,8
|
||
call .Lkey_expansion_192a
|
||
aeskeygenassist \$0x20,%xmm2,%xmm1 # round 8,9
|
||
call .Lkey_expansion_192b
|
||
aeskeygenassist \$0x40,%xmm2,%xmm1 # round 10,11
|
||
call .Lkey_expansion_192a
|
||
aeskeygenassist \$0x80,%xmm2,%xmm1 # round 11,12
|
||
call .Lkey_expansion_192b
|
||
$movkey %xmm0,(%rax)
|
||
mov $bits,48(%rax) # 240(%rdx)
|
||
xor %rax, %rax
|
||
jmp .Lenc_key_ret
|
||
|
||
.align 16
|
||
.L12rounds_alt:
|
||
movdqa .Lkey_rotate192(%rip),%xmm5
|
||
movdqa .Lkey_rcon1(%rip),%xmm4
|
||
mov \$8,%r10d
|
||
movdqu %xmm0,($key)
|
||
jmp .Loop_key192
|
||
|
||
.align 16
|
||
.Loop_key192:
|
||
movq %xmm2,0(%rax)
|
||
movdqa %xmm2,%xmm1
|
||
pshufb %xmm5,%xmm2
|
||
aesenclast %xmm4,%xmm2
|
||
pslld \$1, %xmm4
|
||
lea 24(%rax),%rax
|
||
|
||
movdqa %xmm0,%xmm3
|
||
pslldq \$4,%xmm0
|
||
pxor %xmm0,%xmm3
|
||
pslldq \$4,%xmm0
|
||
pxor %xmm0,%xmm3
|
||
pslldq \$4,%xmm0
|
||
pxor %xmm3,%xmm0
|
||
|
||
pshufd \$0xff,%xmm0,%xmm3
|
||
pxor %xmm1,%xmm3
|
||
pslldq \$4,%xmm1
|
||
pxor %xmm1,%xmm3
|
||
|
||
pxor %xmm2,%xmm0
|
||
pxor %xmm3,%xmm2
|
||
movdqu %xmm0,-16(%rax)
|
||
|
||
dec %r10d
|
||
jnz .Loop_key192
|
||
|
||
mov $bits,32(%rax) # 240($key)
|
||
xor %eax,%eax
|
||
jmp .Lenc_key_ret
|
||
|
||
.align 16
|
||
.L14rounds:
|
||
movups 16($inp),%xmm2 # remaning half of *userKey
|
||
mov \$13,$bits # 14 rounds for 256
|
||
lea 16(%rax),%rax
|
||
cmp \$`1<<28`,%r10d # AVX, but no XOP
|
||
je .L14rounds_alt
|
||
|
||
$movkey %xmm0,($key) # round 0
|
||
$movkey %xmm2,16($key) # round 1
|
||
aeskeygenassist \$0x1,%xmm2,%xmm1 # round 2
|
||
call .Lkey_expansion_256a_cold
|
||
aeskeygenassist \$0x1,%xmm0,%xmm1 # round 3
|
||
call .Lkey_expansion_256b
|
||
aeskeygenassist \$0x2,%xmm2,%xmm1 # round 4
|
||
call .Lkey_expansion_256a
|
||
aeskeygenassist \$0x2,%xmm0,%xmm1 # round 5
|
||
call .Lkey_expansion_256b
|
||
aeskeygenassist \$0x4,%xmm2,%xmm1 # round 6
|
||
call .Lkey_expansion_256a
|
||
aeskeygenassist \$0x4,%xmm0,%xmm1 # round 7
|
||
call .Lkey_expansion_256b
|
||
aeskeygenassist \$0x8,%xmm2,%xmm1 # round 8
|
||
call .Lkey_expansion_256a
|
||
aeskeygenassist \$0x8,%xmm0,%xmm1 # round 9
|
||
call .Lkey_expansion_256b
|
||
aeskeygenassist \$0x10,%xmm2,%xmm1 # round 10
|
||
call .Lkey_expansion_256a
|
||
aeskeygenassist \$0x10,%xmm0,%xmm1 # round 11
|
||
call .Lkey_expansion_256b
|
||
aeskeygenassist \$0x20,%xmm2,%xmm1 # round 12
|
||
call .Lkey_expansion_256a
|
||
aeskeygenassist \$0x20,%xmm0,%xmm1 # round 13
|
||
call .Lkey_expansion_256b
|
||
aeskeygenassist \$0x40,%xmm2,%xmm1 # round 14
|
||
call .Lkey_expansion_256a
|
||
$movkey %xmm0,(%rax)
|
||
mov $bits,16(%rax) # 240(%rdx)
|
||
xor %rax,%rax
|
||
jmp .Lenc_key_ret
|
||
|
||
.align 16
|
||
.L14rounds_alt:
|
||
movdqa .Lkey_rotate(%rip),%xmm5
|
||
movdqa .Lkey_rcon1(%rip),%xmm4
|
||
mov \$7,%r10d
|
||
movdqu %xmm0,0($key)
|
||
movdqa %xmm2,%xmm1
|
||
movdqu %xmm2,16($key)
|
||
jmp .Loop_key256
|
||
|
||
.align 16
|
||
.Loop_key256:
|
||
pshufb %xmm5,%xmm2
|
||
aesenclast %xmm4,%xmm2
|
||
|
||
movdqa %xmm0,%xmm3
|
||
pslldq \$4,%xmm0
|
||
pxor %xmm0,%xmm3
|
||
pslldq \$4,%xmm0
|
||
pxor %xmm0,%xmm3
|
||
pslldq \$4,%xmm0
|
||
pxor %xmm3,%xmm0
|
||
pslld \$1,%xmm4
|
||
|
||
pxor %xmm2,%xmm0
|
||
movdqu %xmm0,(%rax)
|
||
|
||
dec %r10d
|
||
jz .Ldone_key256
|
||
|
||
pshufd \$0xff,%xmm0,%xmm2
|
||
pxor %xmm3,%xmm3
|
||
aesenclast %xmm3,%xmm2
|
||
|
||
movdqa %xmm1,%xmm3
|
||
pslldq \$4,%xmm1
|
||
pxor %xmm1,%xmm3
|
||
pslldq \$4,%xmm1
|
||
pxor %xmm1,%xmm3
|
||
pslldq \$4,%xmm1
|
||
pxor %xmm3,%xmm1
|
||
|
||
pxor %xmm1,%xmm2
|
||
movdqu %xmm2,16(%rax)
|
||
lea 32(%rax),%rax
|
||
movdqa %xmm2,%xmm1
|
||
|
||
jmp .Loop_key256
|
||
|
||
.Ldone_key256:
|
||
mov $bits,16(%rax) # 240($key)
|
||
xor %eax,%eax
|
||
jmp .Lenc_key_ret
|
||
|
||
.align 16
|
||
.Lbad_keybits:
|
||
mov \$-2,%rax
|
||
.Lenc_key_ret:
|
||
pxor %xmm0,%xmm0
|
||
pxor %xmm1,%xmm1
|
||
pxor %xmm2,%xmm2
|
||
pxor %xmm3,%xmm3
|
||
pxor %xmm4,%xmm4
|
||
pxor %xmm5,%xmm5
|
||
add \$8,%rsp
|
||
ret
|
||
.LSEH_end_set_encrypt_key:
|
||
|
||
.align 16
|
||
.Lkey_expansion_128:
|
||
$movkey %xmm0,(%rax)
|
||
lea 16(%rax),%rax
|
||
.Lkey_expansion_128_cold:
|
||
shufps \$0b00010000,%xmm0,%xmm4
|
||
xorps %xmm4, %xmm0
|
||
shufps \$0b10001100,%xmm0,%xmm4
|
||
xorps %xmm4, %xmm0
|
||
shufps \$0b11111111,%xmm1,%xmm1 # critical path
|
||
xorps %xmm1,%xmm0
|
||
ret
|
||
|
||
.align 16
|
||
.Lkey_expansion_192a:
|
||
$movkey %xmm0,(%rax)
|
||
lea 16(%rax),%rax
|
||
.Lkey_expansion_192a_cold:
|
||
movaps %xmm2, %xmm5
|
||
.Lkey_expansion_192b_warm:
|
||
shufps \$0b00010000,%xmm0,%xmm4
|
||
movdqa %xmm2,%xmm3
|
||
xorps %xmm4,%xmm0
|
||
shufps \$0b10001100,%xmm0,%xmm4
|
||
pslldq \$4,%xmm3
|
||
xorps %xmm4,%xmm0
|
||
pshufd \$0b01010101,%xmm1,%xmm1 # critical path
|
||
pxor %xmm3,%xmm2
|
||
pxor %xmm1,%xmm0
|
||
pshufd \$0b11111111,%xmm0,%xmm3
|
||
pxor %xmm3,%xmm2
|
||
ret
|
||
|
||
.align 16
|
||
.Lkey_expansion_192b:
|
||
movaps %xmm0,%xmm3
|
||
shufps \$0b01000100,%xmm0,%xmm5
|
||
$movkey %xmm5,(%rax)
|
||
shufps \$0b01001110,%xmm2,%xmm3
|
||
$movkey %xmm3,16(%rax)
|
||
lea 32(%rax),%rax
|
||
jmp .Lkey_expansion_192b_warm
|
||
|
||
.align 16
|
||
.Lkey_expansion_256a:
|
||
$movkey %xmm2,(%rax)
|
||
lea 16(%rax),%rax
|
||
.Lkey_expansion_256a_cold:
|
||
shufps \$0b00010000,%xmm0,%xmm4
|
||
xorps %xmm4,%xmm0
|
||
shufps \$0b10001100,%xmm0,%xmm4
|
||
xorps %xmm4,%xmm0
|
||
shufps \$0b11111111,%xmm1,%xmm1 # critical path
|
||
xorps %xmm1,%xmm0
|
||
ret
|
||
|
||
.align 16
|
||
.Lkey_expansion_256b:
|
||
$movkey %xmm0,(%rax)
|
||
lea 16(%rax),%rax
|
||
|
||
shufps \$0b00010000,%xmm2,%xmm4
|
||
xorps %xmm4,%xmm2
|
||
shufps \$0b10001100,%xmm2,%xmm4
|
||
xorps %xmm4,%xmm2
|
||
shufps \$0b10101010,%xmm1,%xmm1 # critical path
|
||
xorps %xmm1,%xmm2
|
||
ret
|
||
.size ${PREFIX}_set_encrypt_key,.-${PREFIX}_set_encrypt_key
|
||
.size __aesni_set_encrypt_key,.-__aesni_set_encrypt_key
|
||
___
|
||
}
|
||
|
||
$code.=<<___;
|
||
.align 64
|
||
.Lbswap_mask:
|
||
.byte 15,14,13,12,11,10,9,8,7,6,5,4,3,2,1,0
|
||
.Lincrement32:
|
||
.long 6,6,6,0
|
||
.Lincrement64:
|
||
.long 1,0,0,0
|
||
.Lxts_magic:
|
||
.long 0x87,0,1,0
|
||
.Lincrement1:
|
||
.byte 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1
|
||
.Lkey_rotate:
|
||
.long 0x0c0f0e0d,0x0c0f0e0d,0x0c0f0e0d,0x0c0f0e0d
|
||
.Lkey_rotate192:
|
||
.long 0x04070605,0x04070605,0x04070605,0x04070605
|
||
.Lkey_rcon1:
|
||
.long 1,1,1,1
|
||
.Lkey_rcon1b:
|
||
.long 0x1b,0x1b,0x1b,0x1b
|
||
|
||
.asciz "AES for Intel AES-NI, CRYPTOGAMS by <appro\@openssl.org>"
|
||
.align 64
|
||
___
|
||
|
||
# EXCEPTION_DISPOSITION handler (EXCEPTION_RECORD *rec,ULONG64 frame,
|
||
# CONTEXT *context,DISPATCHER_CONTEXT *disp)
|
||
if ($win64) {
|
||
$rec="%rcx";
|
||
$frame="%rdx";
|
||
$context="%r8";
|
||
$disp="%r9";
|
||
|
||
$code.=<<___;
|
||
.extern __imp_RtlVirtualUnwind
|
||
___
|
||
$code.=<<___ if ($PREFIX eq "aesni");
|
||
.type ecb_ccm64_se_handler,\@abi-omnipotent
|
||
.align 16
|
||
ecb_ccm64_se_handler:
|
||
push %rsi
|
||
push %rdi
|
||
push %rbx
|
||
push %rbp
|
||
push %r12
|
||
push %r13
|
||
push %r14
|
||
push %r15
|
||
pushfq
|
||
sub \$64,%rsp
|
||
|
||
mov 120($context),%rax # pull context->Rax
|
||
mov 248($context),%rbx # pull context->Rip
|
||
|
||
mov 8($disp),%rsi # disp->ImageBase
|
||
mov 56($disp),%r11 # disp->HandlerData
|
||
|
||
mov 0(%r11),%r10d # HandlerData[0]
|
||
lea (%rsi,%r10),%r10 # prologue label
|
||
cmp %r10,%rbx # context->Rip<prologue label
|
||
jb .Lcommon_seh_tail
|
||
|
||
mov 152($context),%rax # pull context->Rsp
|
||
|
||
mov 4(%r11),%r10d # HandlerData[1]
|
||
lea (%rsi,%r10),%r10 # epilogue label
|
||
cmp %r10,%rbx # context->Rip>=epilogue label
|
||
jae .Lcommon_seh_tail
|
||
|
||
lea 0(%rax),%rsi # %xmm save area
|
||
lea 512($context),%rdi # &context.Xmm6
|
||
mov \$8,%ecx # 4*sizeof(%xmm0)/sizeof(%rax)
|
||
.long 0xa548f3fc # cld; rep movsq
|
||
lea 0x58(%rax),%rax # adjust stack pointer
|
||
|
||
jmp .Lcommon_seh_tail
|
||
.size ecb_ccm64_se_handler,.-ecb_ccm64_se_handler
|
||
|
||
.type ctr_xts_se_handler,\@abi-omnipotent
|
||
.align 16
|
||
ctr_xts_se_handler:
|
||
push %rsi
|
||
push %rdi
|
||
push %rbx
|
||
push %rbp
|
||
push %r12
|
||
push %r13
|
||
push %r14
|
||
push %r15
|
||
pushfq
|
||
sub \$64,%rsp
|
||
|
||
mov 120($context),%rax # pull context->Rax
|
||
mov 248($context),%rbx # pull context->Rip
|
||
|
||
mov 8($disp),%rsi # disp->ImageBase
|
||
mov 56($disp),%r11 # disp->HandlerData
|
||
|
||
mov 0(%r11),%r10d # HandlerData[0]
|
||
lea (%rsi,%r10),%r10 # prologue lable
|
||
cmp %r10,%rbx # context->Rip<prologue label
|
||
jb .Lcommon_seh_tail
|
||
|
||
mov 152($context),%rax # pull context->Rsp
|
||
|
||
mov 4(%r11),%r10d # HandlerData[1]
|
||
lea (%rsi,%r10),%r10 # epilogue label
|
||
cmp %r10,%rbx # context->Rip>=epilogue label
|
||
jae .Lcommon_seh_tail
|
||
|
||
mov 160($context),%rax # pull context->Rbp
|
||
lea -0xa0(%rax),%rsi # %xmm save area
|
||
lea 512($context),%rdi # & context.Xmm6
|
||
mov \$20,%ecx # 10*sizeof(%xmm0)/sizeof(%rax)
|
||
.long 0xa548f3fc # cld; rep movsq
|
||
|
||
jmp .Lcommon_rbp_tail
|
||
.size ctr_xts_se_handler,.-ctr_xts_se_handler
|
||
___
|
||
$code.=<<___;
|
||
.type cbc_se_handler,\@abi-omnipotent
|
||
.align 16
|
||
cbc_se_handler:
|
||
push %rsi
|
||
push %rdi
|
||
push %rbx
|
||
push %rbp
|
||
push %r12
|
||
push %r13
|
||
push %r14
|
||
push %r15
|
||
pushfq
|
||
sub \$64,%rsp
|
||
|
||
mov 152($context),%rax # pull context->Rsp
|
||
mov 248($context),%rbx # pull context->Rip
|
||
|
||
lea .Lcbc_decrypt_bulk(%rip),%r10
|
||
cmp %r10,%rbx # context->Rip<"prologue" label
|
||
jb .Lcommon_seh_tail
|
||
|
||
lea .Lcbc_decrypt_body(%rip),%r10
|
||
cmp %r10,%rbx # context->Rip<cbc_decrypt_body
|
||
jb .Lrestore_cbc_rax
|
||
|
||
lea .Lcbc_ret(%rip),%r10
|
||
cmp %r10,%rbx # context->Rip>="epilogue" label
|
||
jae .Lcommon_seh_tail
|
||
|
||
lea 16(%rax),%rsi # %xmm save area
|
||
lea 512($context),%rdi # &context.Xmm6
|
||
mov \$20,%ecx # 10*sizeof(%xmm0)/sizeof(%rax)
|
||
.long 0xa548f3fc # cld; rep movsq
|
||
|
||
.Lcommon_rbp_tail:
|
||
mov 160($context),%rax # pull context->Rbp
|
||
mov (%rax),%rbp # restore saved %rbp
|
||
lea 8(%rax),%rax # adjust stack pointer
|
||
mov %rbp,160($context) # restore context->Rbp
|
||
jmp .Lcommon_seh_tail
|
||
|
||
.Lrestore_cbc_rax:
|
||
mov 120($context),%rax
|
||
|
||
.Lcommon_seh_tail:
|
||
mov 8(%rax),%rdi
|
||
mov 16(%rax),%rsi
|
||
mov %rax,152($context) # restore context->Rsp
|
||
mov %rsi,168($context) # restore context->Rsi
|
||
mov %rdi,176($context) # restore context->Rdi
|
||
|
||
mov 40($disp),%rdi # disp->ContextRecord
|
||
mov $context,%rsi # context
|
||
mov \$154,%ecx # sizeof(CONTEXT)
|
||
.long 0xa548f3fc # cld; rep movsq
|
||
|
||
mov $disp,%rsi
|
||
xor %rcx,%rcx # arg1, UNW_FLAG_NHANDLER
|
||
mov 8(%rsi),%rdx # arg2, disp->ImageBase
|
||
mov 0(%rsi),%r8 # arg3, disp->ControlPc
|
||
mov 16(%rsi),%r9 # arg4, disp->FunctionEntry
|
||
mov 40(%rsi),%r10 # disp->ContextRecord
|
||
lea 56(%rsi),%r11 # &disp->HandlerData
|
||
lea 24(%rsi),%r12 # &disp->EstablisherFrame
|
||
mov %r10,32(%rsp) # arg5
|
||
mov %r11,40(%rsp) # arg6
|
||
mov %r12,48(%rsp) # arg7
|
||
mov %rcx,56(%rsp) # arg8, (NULL)
|
||
call *__imp_RtlVirtualUnwind(%rip)
|
||
|
||
mov \$1,%eax # ExceptionContinueSearch
|
||
add \$64,%rsp
|
||
popfq
|
||
pop %r15
|
||
pop %r14
|
||
pop %r13
|
||
pop %r12
|
||
pop %rbp
|
||
pop %rbx
|
||
pop %rdi
|
||
pop %rsi
|
||
ret
|
||
.size cbc_se_handler,.-cbc_se_handler
|
||
|
||
.section .pdata
|
||
.align 4
|
||
___
|
||
$code.=<<___ if ($PREFIX eq "aesni");
|
||
.rva .LSEH_begin_aesni_ecb_encrypt
|
||
.rva .LSEH_end_aesni_ecb_encrypt
|
||
.rva .LSEH_info_ecb
|
||
|
||
.rva .LSEH_begin_aesni_ccm64_encrypt_blocks
|
||
.rva .LSEH_end_aesni_ccm64_encrypt_blocks
|
||
.rva .LSEH_info_ccm64_enc
|
||
|
||
.rva .LSEH_begin_aesni_ccm64_decrypt_blocks
|
||
.rva .LSEH_end_aesni_ccm64_decrypt_blocks
|
||
.rva .LSEH_info_ccm64_dec
|
||
|
||
.rva .LSEH_begin_aesni_ctr32_encrypt_blocks
|
||
.rva .LSEH_end_aesni_ctr32_encrypt_blocks
|
||
.rva .LSEH_info_ctr32
|
||
|
||
.rva .LSEH_begin_aesni_xts_encrypt
|
||
.rva .LSEH_end_aesni_xts_encrypt
|
||
.rva .LSEH_info_xts_enc
|
||
|
||
.rva .LSEH_begin_aesni_xts_decrypt
|
||
.rva .LSEH_end_aesni_xts_decrypt
|
||
.rva .LSEH_info_xts_dec
|
||
___
|
||
$code.=<<___;
|
||
.rva .LSEH_begin_${PREFIX}_cbc_encrypt
|
||
.rva .LSEH_end_${PREFIX}_cbc_encrypt
|
||
.rva .LSEH_info_cbc
|
||
|
||
.rva ${PREFIX}_set_decrypt_key
|
||
.rva .LSEH_end_set_decrypt_key
|
||
.rva .LSEH_info_key
|
||
|
||
.rva ${PREFIX}_set_encrypt_key
|
||
.rva .LSEH_end_set_encrypt_key
|
||
.rva .LSEH_info_key
|
||
.section .xdata
|
||
.align 8
|
||
___
|
||
$code.=<<___ if ($PREFIX eq "aesni");
|
||
.LSEH_info_ecb:
|
||
.byte 9,0,0,0
|
||
.rva ecb_ccm64_se_handler
|
||
.rva .Lecb_enc_body,.Lecb_enc_ret # HandlerData[]
|
||
.LSEH_info_ccm64_enc:
|
||
.byte 9,0,0,0
|
||
.rva ecb_ccm64_se_handler
|
||
.rva .Lccm64_enc_body,.Lccm64_enc_ret # HandlerData[]
|
||
.LSEH_info_ccm64_dec:
|
||
.byte 9,0,0,0
|
||
.rva ecb_ccm64_se_handler
|
||
.rva .Lccm64_dec_body,.Lccm64_dec_ret # HandlerData[]
|
||
.LSEH_info_ctr32:
|
||
.byte 9,0,0,0
|
||
.rva ctr_xts_se_handler
|
||
.rva .Lctr32_body,.Lctr32_epilogue # HandlerData[]
|
||
.LSEH_info_xts_enc:
|
||
.byte 9,0,0,0
|
||
.rva ctr_xts_se_handler
|
||
.rva .Lxts_enc_body,.Lxts_enc_epilogue # HandlerData[]
|
||
.LSEH_info_xts_dec:
|
||
.byte 9,0,0,0
|
||
.rva ctr_xts_se_handler
|
||
.rva .Lxts_dec_body,.Lxts_dec_epilogue # HandlerData[]
|
||
___
|
||
$code.=<<___;
|
||
.LSEH_info_cbc:
|
||
.byte 9,0,0,0
|
||
.rva cbc_se_handler
|
||
.LSEH_info_key:
|
||
.byte 0x01,0x04,0x01,0x00
|
||
.byte 0x04,0x02,0x00,0x00 # sub rsp,8
|
||
___
|
||
}
|
||
|
||
sub rex {
|
||
local *opcode=shift;
|
||
my ($dst,$src)=@_;
|
||
my $rex=0;
|
||
|
||
$rex|=0x04 if($dst>=8);
|
||
$rex|=0x01 if($src>=8);
|
||
push @opcode,$rex|0x40 if($rex);
|
||
}
|
||
|
||
sub aesni {
|
||
my $line=shift;
|
||
my @opcode=(0x66);
|
||
|
||
if ($line=~/(aeskeygenassist)\s+\$([x0-9a-f]+),\s*%xmm([0-9]+),\s*%xmm([0-9]+)/) {
|
||
rex(\@opcode,$4,$3);
|
||
push @opcode,0x0f,0x3a,0xdf;
|
||
push @opcode,0xc0|($3&7)|(($4&7)<<3); # ModR/M
|
||
my $c=$2;
|
||
push @opcode,$c=~/^0/?oct($c):$c;
|
||
return ".byte\t".join(',',@opcode);
|
||
}
|
||
elsif ($line=~/(aes[a-z]+)\s+%xmm([0-9]+),\s*%xmm([0-9]+)/) {
|
||
my %opcodelet = (
|
||
"aesimc" => 0xdb,
|
||
"aesenc" => 0xdc, "aesenclast" => 0xdd,
|
||
"aesdec" => 0xde, "aesdeclast" => 0xdf
|
||
);
|
||
return undef if (!defined($opcodelet{$1}));
|
||
rex(\@opcode,$3,$2);
|
||
push @opcode,0x0f,0x38,$opcodelet{$1};
|
||
push @opcode,0xc0|($2&7)|(($3&7)<<3); # ModR/M
|
||
return ".byte\t".join(',',@opcode);
|
||
}
|
||
elsif ($line=~/(aes[a-z]+)\s+([0x1-9a-fA-F]*)\(%rsp\),\s*%xmm([0-9]+)/) {
|
||
my %opcodelet = (
|
||
"aesenc" => 0xdc, "aesenclast" => 0xdd,
|
||
"aesdec" => 0xde, "aesdeclast" => 0xdf
|
||
);
|
||
return undef if (!defined($opcodelet{$1}));
|
||
my $off = $2;
|
||
push @opcode,0x44 if ($3>=8);
|
||
push @opcode,0x0f,0x38,$opcodelet{$1};
|
||
push @opcode,0x44|(($3&7)<<3),0x24; # ModR/M
|
||
push @opcode,($off=~/^0/?oct($off):$off)&0xff;
|
||
return ".byte\t".join(',',@opcode);
|
||
}
|
||
return $line;
|
||
}
|
||
|
||
sub movbe {
|
||
".byte 0x0f,0x38,0xf1,0x44,0x24,".shift;
|
||
}
|
||
|
||
$code =~ s/\`([^\`]*)\`/eval($1)/gem;
|
||
$code =~ s/\b(aes.*%xmm[0-9]+).*$/aesni($1)/gem;
|
||
#$code =~ s/\bmovbe\s+%eax/bswap %eax; mov %eax/gm; # debugging artefact
|
||
$code =~ s/\bmovbe\s+%eax,\s*([0-9]+)\(%rsp\)/movbe($1)/gem;
|
||
|
||
print $code;
|
||
|
||
close STDOUT;
|