Imported Upstream version 3.10.2+dfsg

swig/pbkdf_pkcs12.py

@@ -0,0 +1,44 @@
+"""A simple example how to use PBKDF PKCS #12 algorithm."""
+
+import wolfssl
+import os
+import random
+import string
+
+
+PASSWORD_LENGTH = 16
+SALT_LENGTH = 8
+KEY_LENGTH = 16
+ITERATIONS = 256
+SHA256 = 2  # Hashtype, stands for Sha256 in wolfssl.
+
+
+def to_c_byte_array(content):
+    output = wolfssl.byteArray(len(content))
+    for i, ch in enumerate(content):
+        output[i] = ord(ch)
+    return output
+
+
+password = ''.join(random.choice(string.ascii_uppercase + string.digits) for x in range(PASSWORD_LENGTH))
+salt = os.urandom(SALT_LENGTH)
+key = wolfssl.byteArray(KEY_LENGTH)
+
+# params:
+# key :: bytearray output
+# passwd :: bytearray password that is used to derive the key
+# pLen :: password length
+# salt :: bytearray salt
+# sLen :: salt length
+# iterations :: number of iterations
+# kLen :: key length
+# hashType :: int, SHA256 stands for 2
+# purpose :: int, not really sure what it does, 1 was used in the tests
+wolfssl.wc_PKCS12_PBKDF(key, to_c_byte_array(password), PASSWORD_LENGTH, to_c_byte_array(salt), SALT_LENGTH, ITERATIONS,
+                        KEY_LENGTH, SHA256, 1)
+key = wolfssl.cdata(key, KEY_LENGTH)
+assert len(key) == KEY_LENGTH, "Generated key has length %s, whereas should have length %s" % (len(key), KEY_LENGTH)
+
+print 'Generated key: %s\nfor password: %s' % (key, password)
+print 'Bytes:'
+print [b for b in key]