397 lines
15 KiB
C
397 lines
15 KiB
C
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/* crypto/evp/e_camellia.c */
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/* ====================================================================
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* Copyright (c) 2006-2018 The OpenSSL Project. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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*
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* 3. All advertising materials mentioning features or use of this
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* software must display the following acknowledgment:
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* "This product includes software developed by the OpenSSL Project
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* for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
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*
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* 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
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* endorse or promote products derived from this software without
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* prior written permission. For written permission, please contact
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* openssl-core@openssl.org.
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*
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* 5. Products derived from this software may not be called "OpenSSL"
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* nor may "OpenSSL" appear in their names without prior written
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* permission of the OpenSSL Project.
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*
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* 6. Redistributions of any form whatsoever must retain the following
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* acknowledgment:
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* "This product includes software developed by the OpenSSL Project
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* for use in the OpenSSL Toolkit (http://www.openssl.org/)"
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*
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* THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
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* EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
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* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
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* OF THE POSSIBILITY OF SUCH DAMAGE.
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* ====================================================================
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*
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* This product includes cryptographic software written by Eric Young
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* (eay@cryptsoft.com). This product includes software written by Tim
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* Hudson (tjh@cryptsoft.com).
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*
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*/
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#include <openssl/opensslconf.h>
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#ifndef OPENSSL_NO_CAMELLIA
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# include <openssl/evp.h>
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# include <openssl/err.h>
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# include <string.h>
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# include <assert.h>
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# include <openssl/camellia.h>
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# include "evp_locl.h"
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# include "modes_lcl.h"
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static int camellia_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
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const unsigned char *iv, int enc);
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/* Camellia subkey Structure */
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typedef struct {
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CAMELLIA_KEY ks;
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block128_f block;
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union {
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cbc128_f cbc;
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ctr128_f ctr;
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} stream;
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} EVP_CAMELLIA_KEY;
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# define MAXBITCHUNK ((size_t)1<<(sizeof(size_t)*8-4))
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/* Attribute operation for Camellia */
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# define data(ctx) EVP_C_DATA(EVP_CAMELLIA_KEY,ctx)
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# if defined(AES_ASM) && (defined(__sparc) || defined(__sparc__))
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/* ---------^^^ this is not a typo, just a way to detect that
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* assembler support was in general requested... */
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# include "sparc_arch.h"
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extern unsigned int OPENSSL_sparcv9cap_P[];
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# define SPARC_CMLL_CAPABLE (OPENSSL_sparcv9cap_P[1] & CFR_CAMELLIA)
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void cmll_t4_set_key(const unsigned char *key, int bits, CAMELLIA_KEY *ks);
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void cmll_t4_encrypt(const unsigned char *in, unsigned char *out,
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const CAMELLIA_KEY *key);
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void cmll_t4_decrypt(const unsigned char *in, unsigned char *out,
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const CAMELLIA_KEY *key);
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void cmll128_t4_cbc_encrypt(const unsigned char *in, unsigned char *out,
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size_t len, const CAMELLIA_KEY *key,
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unsigned char *ivec);
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void cmll128_t4_cbc_decrypt(const unsigned char *in, unsigned char *out,
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size_t len, const CAMELLIA_KEY *key,
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unsigned char *ivec);
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void cmll256_t4_cbc_encrypt(const unsigned char *in, unsigned char *out,
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size_t len, const CAMELLIA_KEY *key,
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unsigned char *ivec);
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void cmll256_t4_cbc_decrypt(const unsigned char *in, unsigned char *out,
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size_t len, const CAMELLIA_KEY *key,
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unsigned char *ivec);
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void cmll128_t4_ctr32_encrypt(const unsigned char *in, unsigned char *out,
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size_t blocks, const CAMELLIA_KEY *key,
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unsigned char *ivec);
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void cmll256_t4_ctr32_encrypt(const unsigned char *in, unsigned char *out,
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size_t blocks, const CAMELLIA_KEY *key,
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unsigned char *ivec);
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static int cmll_t4_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
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const unsigned char *iv, int enc)
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{
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int ret, mode, bits;
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EVP_CAMELLIA_KEY *dat = (EVP_CAMELLIA_KEY *) ctx->cipher_data;
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mode = ctx->cipher->flags & EVP_CIPH_MODE;
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bits = ctx->key_len * 8;
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cmll_t4_set_key(key, bits, &dat->ks);
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if ((mode == EVP_CIPH_ECB_MODE || mode == EVP_CIPH_CBC_MODE)
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&& !enc) {
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ret = 0;
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dat->block = (block128_f) cmll_t4_decrypt;
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switch (bits) {
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case 128:
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dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ?
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(cbc128_f) cmll128_t4_cbc_decrypt : NULL;
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break;
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case 192:
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case 256:
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dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ?
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(cbc128_f) cmll256_t4_cbc_decrypt : NULL;
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break;
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default:
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ret = -1;
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}
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} else {
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ret = 0;
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dat->block = (block128_f) cmll_t4_encrypt;
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switch (bits) {
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case 128:
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if (mode == EVP_CIPH_CBC_MODE)
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dat->stream.cbc = (cbc128_f) cmll128_t4_cbc_encrypt;
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else if (mode == EVP_CIPH_CTR_MODE)
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dat->stream.ctr = (ctr128_f) cmll128_t4_ctr32_encrypt;
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else
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dat->stream.cbc = NULL;
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break;
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case 192:
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case 256:
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if (mode == EVP_CIPH_CBC_MODE)
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dat->stream.cbc = (cbc128_f) cmll256_t4_cbc_encrypt;
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else if (mode == EVP_CIPH_CTR_MODE)
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dat->stream.ctr = (ctr128_f) cmll256_t4_ctr32_encrypt;
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else
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dat->stream.cbc = NULL;
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break;
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default:
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ret = -1;
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}
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}
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if (ret < 0) {
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EVPerr(EVP_F_CMLL_T4_INIT_KEY, EVP_R_CAMELLIA_KEY_SETUP_FAILED);
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return 0;
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}
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return 1;
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}
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# define cmll_t4_cbc_cipher camellia_cbc_cipher
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static int cmll_t4_cbc_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
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const unsigned char *in, size_t len);
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# define cmll_t4_ecb_cipher camellia_ecb_cipher
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static int cmll_t4_ecb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
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const unsigned char *in, size_t len);
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# define cmll_t4_ofb_cipher camellia_ofb_cipher
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static int cmll_t4_ofb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
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const unsigned char *in, size_t len);
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# define cmll_t4_cfb_cipher camellia_cfb_cipher
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static int cmll_t4_cfb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
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const unsigned char *in, size_t len);
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# define cmll_t4_cfb8_cipher camellia_cfb8_cipher
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static int cmll_t4_cfb8_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
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const unsigned char *in, size_t len);
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# define cmll_t4_cfb1_cipher camellia_cfb1_cipher
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static int cmll_t4_cfb1_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
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const unsigned char *in, size_t len);
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# define cmll_t4_ctr_cipher camellia_ctr_cipher
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static int cmll_t4_ctr_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
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const unsigned char *in, size_t len);
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# define BLOCK_CIPHER_generic(nid,keylen,blocksize,ivlen,nmode,mode,MODE,flags) \
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static const EVP_CIPHER cmll_t4_##keylen##_##mode = { \
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nid##_##keylen##_##nmode,blocksize,keylen/8,ivlen, \
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flags|EVP_CIPH_##MODE##_MODE, \
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cmll_t4_init_key, \
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cmll_t4_##mode##_cipher, \
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NULL, \
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sizeof(EVP_CAMELLIA_KEY), \
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NULL,NULL,NULL,NULL }; \
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static const EVP_CIPHER camellia_##keylen##_##mode = { \
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nid##_##keylen##_##nmode,blocksize, \
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keylen/8,ivlen, \
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flags|EVP_CIPH_##MODE##_MODE, \
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camellia_init_key, \
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camellia_##mode##_cipher, \
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NULL, \
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sizeof(EVP_CAMELLIA_KEY), \
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NULL,NULL,NULL,NULL }; \
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const EVP_CIPHER *EVP_camellia_##keylen##_##mode(void) \
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{ return SPARC_CMLL_CAPABLE?&cmll_t4_##keylen##_##mode:&camellia_##keylen##_##mode; }
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# else
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# define BLOCK_CIPHER_generic(nid,keylen,blocksize,ivlen,nmode,mode,MODE,flags) \
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static const EVP_CIPHER camellia_##keylen##_##mode = { \
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nid##_##keylen##_##nmode,blocksize,keylen/8,ivlen, \
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flags|EVP_CIPH_##MODE##_MODE, \
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camellia_init_key, \
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camellia_##mode##_cipher, \
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NULL, \
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sizeof(EVP_CAMELLIA_KEY), \
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NULL,NULL,NULL,NULL }; \
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const EVP_CIPHER *EVP_camellia_##keylen##_##mode(void) \
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{ return &camellia_##keylen##_##mode; }
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# endif
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# define BLOCK_CIPHER_generic_pack(nid,keylen,flags) \
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BLOCK_CIPHER_generic(nid,keylen,16,16,cbc,cbc,CBC,flags|EVP_CIPH_FLAG_DEFAULT_ASN1) \
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BLOCK_CIPHER_generic(nid,keylen,16,0,ecb,ecb,ECB,flags|EVP_CIPH_FLAG_DEFAULT_ASN1) \
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BLOCK_CIPHER_generic(nid,keylen,1,16,ofb128,ofb,OFB,flags|EVP_CIPH_FLAG_DEFAULT_ASN1) \
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BLOCK_CIPHER_generic(nid,keylen,1,16,cfb128,cfb,CFB,flags|EVP_CIPH_FLAG_DEFAULT_ASN1) \
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BLOCK_CIPHER_generic(nid,keylen,1,16,cfb1,cfb1,CFB,flags) \
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BLOCK_CIPHER_generic(nid,keylen,1,16,cfb8,cfb8,CFB,flags)
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# if 0 /* not yet, missing NID */
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BLOCK_CIPHER_generic(nid, keylen, 1, 16, ctr, ctr, CTR, flags)
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# endif
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/* The subkey for Camellia is generated. */
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static int camellia_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
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const unsigned char *iv, int enc)
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{
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int ret, mode;
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EVP_CAMELLIA_KEY *dat = (EVP_CAMELLIA_KEY *) ctx->cipher_data;
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ret = Camellia_set_key(key, ctx->key_len * 8, &dat->ks);
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if (ret < 0) {
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EVPerr(EVP_F_CAMELLIA_INIT_KEY, EVP_R_CAMELLIA_KEY_SETUP_FAILED);
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return 0;
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}
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mode = ctx->cipher->flags & EVP_CIPH_MODE;
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if ((mode == EVP_CIPH_ECB_MODE || mode == EVP_CIPH_CBC_MODE)
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&& !enc) {
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dat->block = (block128_f) Camellia_decrypt;
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dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ?
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(cbc128_f) Camellia_cbc_encrypt : NULL;
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} else {
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dat->block = (block128_f) Camellia_encrypt;
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dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ?
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(cbc128_f) Camellia_cbc_encrypt : NULL;
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}
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return 1;
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}
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static int camellia_cbc_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
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const unsigned char *in, size_t len)
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{
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EVP_CAMELLIA_KEY *dat = (EVP_CAMELLIA_KEY *) ctx->cipher_data;
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if (dat->stream.cbc)
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(*dat->stream.cbc) (in, out, len, &dat->ks, ctx->iv, ctx->encrypt);
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else if (ctx->encrypt)
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CRYPTO_cbc128_encrypt(in, out, len, &dat->ks, ctx->iv, dat->block);
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else
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CRYPTO_cbc128_decrypt(in, out, len, &dat->ks, ctx->iv, dat->block);
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return 1;
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}
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static int camellia_ecb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
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const unsigned char *in, size_t len)
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{
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size_t bl = ctx->cipher->block_size;
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size_t i;
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EVP_CAMELLIA_KEY *dat = (EVP_CAMELLIA_KEY *) ctx->cipher_data;
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if (len < bl)
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return 1;
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for (i = 0, len -= bl; i <= len; i += bl)
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(*dat->block) (in + i, out + i, &dat->ks);
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return 1;
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}
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static int camellia_ofb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
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const unsigned char *in, size_t len)
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{
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EVP_CAMELLIA_KEY *dat = (EVP_CAMELLIA_KEY *) ctx->cipher_data;
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|
|
||
|
|
CRYPTO_ofb128_encrypt(in, out, len, &dat->ks,
|
||
|
|
ctx->iv, &ctx->num, dat->block);
|
||
|
|
return 1;
|
||
|
|
}
|
||
|
|
|
||
|
|
static int camellia_cfb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
|
||
|
|
const unsigned char *in, size_t len)
|
||
|
|
{
|
||
|
|
EVP_CAMELLIA_KEY *dat = (EVP_CAMELLIA_KEY *) ctx->cipher_data;
|
||
|
|
|
||
|
|
CRYPTO_cfb128_encrypt(in, out, len, &dat->ks,
|
||
|
|
ctx->iv, &ctx->num, ctx->encrypt, dat->block);
|
||
|
|
return 1;
|
||
|
|
}
|
||
|
|
|
||
|
|
static int camellia_cfb8_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
|
||
|
|
const unsigned char *in, size_t len)
|
||
|
|
{
|
||
|
|
EVP_CAMELLIA_KEY *dat = (EVP_CAMELLIA_KEY *) ctx->cipher_data;
|
||
|
|
|
||
|
|
CRYPTO_cfb128_8_encrypt(in, out, len, &dat->ks,
|
||
|
|
ctx->iv, &ctx->num, ctx->encrypt, dat->block);
|
||
|
|
return 1;
|
||
|
|
}
|
||
|
|
|
||
|
|
static int camellia_cfb1_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
|
||
|
|
const unsigned char *in, size_t len)
|
||
|
|
{
|
||
|
|
EVP_CAMELLIA_KEY *dat = (EVP_CAMELLIA_KEY *) ctx->cipher_data;
|
||
|
|
|
||
|
|
if (ctx->flags & EVP_CIPH_FLAG_LENGTH_BITS) {
|
||
|
|
CRYPTO_cfb128_1_encrypt(in, out, len, &dat->ks,
|
||
|
|
ctx->iv, &ctx->num, ctx->encrypt, dat->block);
|
||
|
|
return 1;
|
||
|
|
}
|
||
|
|
|
||
|
|
while (len >= MAXBITCHUNK) {
|
||
|
|
CRYPTO_cfb128_1_encrypt(in, out, MAXBITCHUNK * 8, &dat->ks,
|
||
|
|
ctx->iv, &ctx->num, ctx->encrypt, dat->block);
|
||
|
|
len -= MAXBITCHUNK;
|
||
|
|
out += MAXBITCHUNK;
|
||
|
|
in += MAXBITCHUNK;
|
||
|
|
}
|
||
|
|
if (len)
|
||
|
|
CRYPTO_cfb128_1_encrypt(in, out, len * 8, &dat->ks,
|
||
|
|
ctx->iv, &ctx->num, ctx->encrypt, dat->block);
|
||
|
|
|
||
|
|
return 1;
|
||
|
|
}
|
||
|
|
|
||
|
|
# if 0 /* not yet, missing NID */
|
||
|
|
static int camellia_ctr_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
|
||
|
|
const unsigned char *in, size_t len)
|
||
|
|
{
|
||
|
|
unsigned int num = ctx->num;
|
||
|
|
EVP_CAMELLIA_KEY *dat = (EVP_CAMELLIA_KEY *) ctx->cipher_data;
|
||
|
|
|
||
|
|
if (dat->stream.ctr)
|
||
|
|
CRYPTO_ctr128_encrypt_ctr32(in, out, len, &dat->ks,
|
||
|
|
ctx->iv, ctx->buf, &num, dat->stream.ctr);
|
||
|
|
else
|
||
|
|
CRYPTO_ctr128_encrypt(in, out, len, &dat->ks,
|
||
|
|
ctx->iv, ctx->buf, &num, dat->block);
|
||
|
|
ctx->num = (size_t)num;
|
||
|
|
return 1;
|
||
|
|
}
|
||
|
|
# endif
|
||
|
|
|
||
|
|
BLOCK_CIPHER_generic_pack(NID_camellia, 128, 0)
|
||
|
|
BLOCK_CIPHER_generic_pack(NID_camellia, 192, 0)
|
||
|
|
BLOCK_CIPHER_generic_pack(NID_camellia, 256, 0)
|
||
|
|
#else
|
||
|
|
|
||
|
|
# ifdef PEDANTIC
|
||
|
|
static void *dummy = &dummy;
|
||
|
|
# endif
|
||
|
|
|
||
|
|
#endif
|