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Diffstat (limited to 'thirdparty/openssl/crypto/des/xcbc_enc.c')
| -rw-r--r-- | thirdparty/openssl/crypto/des/xcbc_enc.c | 216 |
1 files changed, 216 insertions, 0 deletions
diff --git a/thirdparty/openssl/crypto/des/xcbc_enc.c b/thirdparty/openssl/crypto/des/xcbc_enc.c new file mode 100644 index 0000000000..6fe021be75 --- /dev/null +++ b/thirdparty/openssl/crypto/des/xcbc_enc.c @@ -0,0 +1,216 @@ +/* crypto/des/xcbc_enc.c */ +/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) + * All rights reserved. + * + * This package is an SSL implementation written + * by Eric Young (eay@cryptsoft.com). + * The implementation was written so as to conform with Netscapes SSL. + * + * This library is free for commercial and non-commercial use as long as + * the following conditions are aheared to. The following conditions + * apply to all code found in this distribution, be it the RC4, RSA, + * lhash, DES, etc., code; not just the SSL code. The SSL documentation + * included with this distribution is covered by the same copyright terms + * except that the holder is Tim Hudson (tjh@cryptsoft.com). + * + * Copyright remains Eric Young's, and as such any Copyright notices in + * the code are not to be removed. + * If this package is used in a product, Eric Young should be given attribution + * as the author of the parts of the library used. + * This can be in the form of a textual message at program startup or + * in documentation (online or textual) provided with the package. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * "This product includes cryptographic software written by + * Eric Young (eay@cryptsoft.com)" + * The word 'cryptographic' can be left out if the rouines from the library + * being used are not cryptographic related :-). + * 4. If you include any Windows specific code (or a derivative thereof) from + * the apps directory (application code) you must include an acknowledgement: + * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" + * + * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * The licence and distribution terms for any publically available version or + * derivative of this code cannot be changed. i.e. this code cannot simply be + * copied and put under another distribution licence + * [including the GNU Public Licence.] + */ + +#include "des_locl.h" + +/* RSA's DESX */ + +#if 0 /* broken code, preserved just in case anyone + * specifically looks for this */ +static const unsigned char desx_white_in2out[256] = { + 0xBD, 0x56, 0xEA, 0xF2, 0xA2, 0xF1, 0xAC, 0x2A, 0xB0, 0x93, 0xD1, 0x9C, + 0x1B, 0x33, 0xFD, 0xD0, + 0x30, 0x04, 0xB6, 0xDC, 0x7D, 0xDF, 0x32, 0x4B, 0xF7, 0xCB, 0x45, 0x9B, + 0x31, 0xBB, 0x21, 0x5A, + 0x41, 0x9F, 0xE1, 0xD9, 0x4A, 0x4D, 0x9E, 0xDA, 0xA0, 0x68, 0x2C, 0xC3, + 0x27, 0x5F, 0x80, 0x36, + 0x3E, 0xEE, 0xFB, 0x95, 0x1A, 0xFE, 0xCE, 0xA8, 0x34, 0xA9, 0x13, 0xF0, + 0xA6, 0x3F, 0xD8, 0x0C, + 0x78, 0x24, 0xAF, 0x23, 0x52, 0xC1, 0x67, 0x17, 0xF5, 0x66, 0x90, 0xE7, + 0xE8, 0x07, 0xB8, 0x60, + 0x48, 0xE6, 0x1E, 0x53, 0xF3, 0x92, 0xA4, 0x72, 0x8C, 0x08, 0x15, 0x6E, + 0x86, 0x00, 0x84, 0xFA, + 0xF4, 0x7F, 0x8A, 0x42, 0x19, 0xF6, 0xDB, 0xCD, 0x14, 0x8D, 0x50, 0x12, + 0xBA, 0x3C, 0x06, 0x4E, + 0xEC, 0xB3, 0x35, 0x11, 0xA1, 0x88, 0x8E, 0x2B, 0x94, 0x99, 0xB7, 0x71, + 0x74, 0xD3, 0xE4, 0xBF, + 0x3A, 0xDE, 0x96, 0x0E, 0xBC, 0x0A, 0xED, 0x77, 0xFC, 0x37, 0x6B, 0x03, + 0x79, 0x89, 0x62, 0xC6, + 0xD7, 0xC0, 0xD2, 0x7C, 0x6A, 0x8B, 0x22, 0xA3, 0x5B, 0x05, 0x5D, 0x02, + 0x75, 0xD5, 0x61, 0xE3, + 0x18, 0x8F, 0x55, 0x51, 0xAD, 0x1F, 0x0B, 0x5E, 0x85, 0xE5, 0xC2, 0x57, + 0x63, 0xCA, 0x3D, 0x6C, + 0xB4, 0xC5, 0xCC, 0x70, 0xB2, 0x91, 0x59, 0x0D, 0x47, 0x20, 0xC8, 0x4F, + 0x58, 0xE0, 0x01, 0xE2, + 0x16, 0x38, 0xC4, 0x6F, 0x3B, 0x0F, 0x65, 0x46, 0xBE, 0x7E, 0x2D, 0x7B, + 0x82, 0xF9, 0x40, 0xB5, + 0x1D, 0x73, 0xF8, 0xEB, 0x26, 0xC7, 0x87, 0x97, 0x25, 0x54, 0xB1, 0x28, + 0xAA, 0x98, 0x9D, 0xA5, + 0x64, 0x6D, 0x7A, 0xD4, 0x10, 0x81, 0x44, 0xEF, 0x49, 0xD6, 0xAE, 0x2E, + 0xDD, 0x76, 0x5C, 0x2F, + 0xA7, 0x1C, 0xC9, 0x09, 0x69, 0x9A, 0x83, 0xCF, 0x29, 0x39, 0xB9, 0xE9, + 0x4C, 0xFF, 0x43, 0xAB, +}; + +void DES_xwhite_in2out(const_DES_cblock *des_key, const_DES_cblock *in_white, + DES_cblock *out_white) +{ + int out0, out1; + int i; + const unsigned char *key = &(*des_key)[0]; + const unsigned char *in = &(*in_white)[0]; + unsigned char *out = &(*out_white)[0]; + + out[0] = out[1] = out[2] = out[3] = out[4] = out[5] = out[6] = out[7] = 0; + out0 = out1 = 0; + for (i = 0; i < 8; i++) { + out[i] = key[i] ^ desx_white_in2out[out0 ^ out1]; + out0 = out1; + out1 = (int)out[i & 0x07]; + } + + out0 = out[0]; + out1 = out[i]; /* BUG: out-of-bounds read */ + for (i = 0; i < 8; i++) { + out[i] = in[i] ^ desx_white_in2out[out0 ^ out1]; + out0 = out1; + out1 = (int)out[i & 0x07]; + } +} +#endif + +void DES_xcbc_encrypt(const unsigned char *in, unsigned char *out, + long length, DES_key_schedule *schedule, + DES_cblock *ivec, const_DES_cblock *inw, + const_DES_cblock *outw, int enc) +{ + register DES_LONG tin0, tin1; + register DES_LONG tout0, tout1, xor0, xor1; + register DES_LONG inW0, inW1, outW0, outW1; + register const unsigned char *in2; + register long l = length; + DES_LONG tin[2]; + unsigned char *iv; + + in2 = &(*inw)[0]; + c2l(in2, inW0); + c2l(in2, inW1); + in2 = &(*outw)[0]; + c2l(in2, outW0); + c2l(in2, outW1); + + iv = &(*ivec)[0]; + + if (enc) { + c2l(iv, tout0); + c2l(iv, tout1); + for (l -= 8; l >= 0; l -= 8) { + c2l(in, tin0); + c2l(in, tin1); + tin0 ^= tout0 ^ inW0; + tin[0] = tin0; + tin1 ^= tout1 ^ inW1; + tin[1] = tin1; + DES_encrypt1(tin, schedule, DES_ENCRYPT); + tout0 = tin[0] ^ outW0; + l2c(tout0, out); + tout1 = tin[1] ^ outW1; + l2c(tout1, out); + } + if (l != -8) { + c2ln(in, tin0, tin1, l + 8); + tin0 ^= tout0 ^ inW0; + tin[0] = tin0; + tin1 ^= tout1 ^ inW1; + tin[1] = tin1; + DES_encrypt1(tin, schedule, DES_ENCRYPT); + tout0 = tin[0] ^ outW0; + l2c(tout0, out); + tout1 = tin[1] ^ outW1; + l2c(tout1, out); + } + iv = &(*ivec)[0]; + l2c(tout0, iv); + l2c(tout1, iv); + } else { + c2l(iv, xor0); + c2l(iv, xor1); + for (l -= 8; l > 0; l -= 8) { + c2l(in, tin0); + tin[0] = tin0 ^ outW0; + c2l(in, tin1); + tin[1] = tin1 ^ outW1; + DES_encrypt1(tin, schedule, DES_DECRYPT); + tout0 = tin[0] ^ xor0 ^ inW0; + tout1 = tin[1] ^ xor1 ^ inW1; + l2c(tout0, out); + l2c(tout1, out); + xor0 = tin0; + xor1 = tin1; + } + if (l != -8) { + c2l(in, tin0); + tin[0] = tin0 ^ outW0; + c2l(in, tin1); + tin[1] = tin1 ^ outW1; + DES_encrypt1(tin, schedule, DES_DECRYPT); + tout0 = tin[0] ^ xor0 ^ inW0; + tout1 = tin[1] ^ xor1 ^ inW1; + l2cn(tout0, tout1, out, l + 8); + xor0 = tin0; + xor1 = tin1; + } + + iv = &(*ivec)[0]; + l2c(xor0, iv); + l2c(xor1, iv); + } + tin0 = tin1 = tout0 = tout1 = xor0 = xor1 = 0; + inW0 = inW1 = outW0 = outW1 = 0; + tin[0] = tin[1] = 0; +} |