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Diffstat (limited to 'contrib/opie/libopie/md5c.c')
| -rw-r--r-- | contrib/opie/libopie/md5c.c | 304 |
1 files changed, 0 insertions, 304 deletions
diff --git a/contrib/opie/libopie/md5c.c b/contrib/opie/libopie/md5c.c deleted file mode 100644 index cdd21e04489a..000000000000 --- a/contrib/opie/libopie/md5c.c +++ /dev/null @@ -1,304 +0,0 @@ -/* md5c.c: "RSA Data Security, Inc. MD5 Message-Digest Algorithm" - "derived from the RSA Data Security, Inc. MD5 Message-Digest Algorithm" - -%%% portions-copyright-cmetz-96 -Portions of this software are Copyright 1996-1999 by Craig Metz, All Rights -Reserved. The Inner Net License Version 2 applies to these portions of -the software. -You should have received a copy of the license with this software. If -you didn't get a copy, you may request one from <license@inner.net>. - -Portions of this software are Copyright 1995 by Randall Atkinson and Dan -McDonald, All Rights Reserved. All Rights under this copyright are assigned -to the U.S. Naval Research Laboratory (NRL). The NRL Copyright Notice and -License Agreement applies to this software. - - History: - - Modified by cmetz for OPIE 2.3. Changed PTR to VOIDPTR. - Modified by cmetz for OPIE 2.2. Use FUNCTION declaration et al. - Don't play macro games with memset/memcpy. Renamed exported - functions to avoid conflicts. Use unified context structure. - Modified at NRL for OPIE 2.1. Minor autoconf mods. - Modified at NRL for OPIE 2.0. - Originally from RSADSI reference code. -*/ -/* Copyright (C) 1991-2, RSA Data Security, Inc. Created 1991. All - rights reserved. - - License to copy and use this software is granted provided that it - is identified as the "RSA Data Security, Inc. MD5 Message-Digest - Algorithm" in all material mentioning or referencing this software - or this function. - - License is also granted to make and use derivative works provided - that such works are identified as "derived from the RSA Data - Security, Inc. MD5 Message-Digest Algorithm" in all material - mentioning or referencing the derived work. - - RSA Data Security, Inc. makes no representations concerning either - the merchantability of this software or the suitability of this - software for any particular purpose. It is provided "as is" - without express or implied warranty of any kind. - - These notices must be retained in any copies of any part of this - documentation and/or software. - */ - -#include "opie_cfg.h" -#include "opie.h" - -/* Constants for MD5Transform routine. - */ -#define S11 7 -#define S12 12 -#define S13 17 -#define S14 22 -#define S21 5 -#define S22 9 -#define S23 14 -#define S24 20 -#define S31 4 -#define S32 11 -#define S33 16 -#define S34 23 -#define S41 6 -#define S42 10 -#define S43 15 -#define S44 21 - -static VOIDRET MD5Transform __P((UINT4[4], unsigned char[64])); - -static unsigned char PADDING[64] = -{ - 0x80, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 -}; - -/* - * Encodes input (UINT4) into output (unsigned char). - * Assumes len is a multiple of 4. - */ -static VOIDRET EEncode FUNCTION((output, input, len), unsigned char *output AND UINT4 *input AND unsigned int len) -{ - unsigned int i, j; - - for (i = 0, j = 0; j < len; i++, j += 4) { - output[j] = (unsigned char) (input[i] & 0xff); - output[j + 1] = (unsigned char) ((input[i] >> 8) & 0xff); - output[j + 2] = (unsigned char) ((input[i] >> 16) & 0xff); - output[j + 3] = (unsigned char) ((input[i] >> 24) & 0xff); - } -} - -/* - * Decodes input (unsigned char) into output (UINT4). - * Assumes len is a multiple of 4. - */ -static VOIDRET EDecode FUNCTION((output, input, len), UINT4 *output AND unsigned char *input AND unsigned int len) -{ - unsigned int i, j; - - for (i = 0, j = 0; j < len; i++, j += 4) - output[i] = ((UINT4) input[j]) | (((UINT4) input[j + 1]) << 8) | - (((UINT4) input[j + 2]) << 16) | (((UINT4) input[j + 3]) << 24); -} - -/* F, G, H and I are basic MD5 functions. */ -#define F(x, y, z) (((x) & (y)) | ((~x) & (z))) -#define G(x, y, z) (((x) & (z)) | ((y) & (~z))) -#define H(x, y, z) ((x) ^ (y) ^ (z)) -#define I(x, y, z) ((y) ^ ((x) | (~z))) - -/* ROTATE_LEFT rotates x left n bits. */ -#define ROTATE_LEFT(x, n) (((x) << (n)) | ((x) >> (32-(n)))) - -/* FF, GG, HH, and II transformations for rounds 1, 2, 3, and 4. - Rotation is separate from addition to prevent recomputation. */ - -#define FF(a, b, c, d, x, s, ac) { \ - (a) += F ((b), (c), (d)) + (x) + (UINT4)(ac); \ - (a) = ROTATE_LEFT ((a), (s)); \ - (a) += (b); \ - } - -#define GG(a, b, c, d, x, s, ac) { \ - (a) += G ((b), (c), (d)) + (x) + (UINT4)(ac); \ - (a) = ROTATE_LEFT ((a), (s)); \ - (a) += (b); \ - } - -#define HH(a, b, c, d, x, s, ac) { \ - (a) += H ((b), (c), (d)) + (x) + (UINT4)(ac); \ - (a) = ROTATE_LEFT ((a), (s)); \ - (a) += (b); \ - } - -#define II(a, b, c, d, x, s, ac) { \ - (a) += I ((b), (c), (d)) + (x) + (UINT4)(ac); \ - (a) = ROTATE_LEFT ((a), (s)); \ - (a) += (b); \ - } - -/* MD5 initialization. Begins an MD5 operation, writing a new context. */ -VOIDRET opiemd5init FUNCTION((context), struct opiemdx_ctx *context) -{ - context->count[0] = context->count[1] = 0; - /* Load magic initialization constants. */ - context->state[0] = 0x67452301; - context->state[1] = 0xefcdab89; - context->state[2] = 0x98badcfe; - context->state[3] = 0x10325476; -} - -/* - * MD5 block update operation. Continues an MD5 message-digest - * operation, processing another message block, and updating the - * context. - */ -VOIDRET opiemd5update FUNCTION((context, input, inputLen), struct opiemdx_ctx *context AND unsigned char *input AND unsigned int inputLen) -{ - unsigned int i, index, partLen; - - /* Compute number of bytes mod 64 */ - index = (unsigned int) ((context->count[0] >> 3) & 0x3F); - - /* Update number of bits */ - if ((context->count[0] += ((UINT4) inputLen << 3)) < ((UINT4) inputLen << 3)) - context->count[1]++; - - context->count[1] += ((UINT4) inputLen >> 29); - partLen = 64 - index; - - /* Transform as many times as possible. */ - if (inputLen >= partLen) { - memcpy((VOIDPTR)&context->buffer[index], (VOIDPTR)input, partLen); - MD5Transform(context->state, context->buffer); - - for (i = partLen; i + 63 < inputLen; i += 64) - MD5Transform(context->state, &input[i]); - - index = 0; - } else - i = 0; - - /* Buffer remaining input */ - memcpy((VOIDPTR) & context->buffer[index], - (VOIDPTR) & input[i], - inputLen - i); -} - -/* MD5 finalization. Ends an MD5 message-digest operation, writing the - the message digest and zeroizing the context. - */ -VOIDRET opiemd5final FUNCTION((digest, context), unsigned char *digest AND struct opiemdx_ctx *context) -{ - unsigned char bits[8]; - unsigned int index, padLen; - - /* Save number of bits */ - EEncode(bits, context->count, 8); - - /* Pad out to 56 mod 64. */ - index = (unsigned int) ((context->count[0] >> 3) & 0x3f); - padLen = (index < 56) ? (56 - index) : (120 - index); - opiemd5update(context, PADDING, padLen); - - /* Append length (before padding) */ - opiemd5update(context, bits, 8); - - /* Store state in digest */ - EEncode(digest, context->state, 16); - - /* Zeroize sensitive information. */ - memset((VOIDPTR) context, 0, sizeof(*context)); -} - -/* MD5 basic transformation. Transforms state based on block. */ -static VOIDRET MD5Transform FUNCTION((state, block), UINT4 state[4] AND unsigned char block[64]) -{ - UINT4 a = state[0], b = state[1], c = state[2], d = state[3], x[16]; - - EDecode(x, block, 64); - - /* Round 1 */ - FF(a, b, c, d, x[0], S11, 0xd76aa478); /* 1 */ - FF(d, a, b, c, x[1], S12, 0xe8c7b756); /* 2 */ - FF(c, d, a, b, x[2], S13, 0x242070db); /* 3 */ - FF(b, c, d, a, x[3], S14, 0xc1bdceee); /* 4 */ - FF(a, b, c, d, x[4], S11, 0xf57c0faf); /* 5 */ - FF(d, a, b, c, x[5], S12, 0x4787c62a); /* 6 */ - FF(c, d, a, b, x[6], S13, 0xa8304613); /* 7 */ - FF(b, c, d, a, x[7], S14, 0xfd469501); /* 8 */ - FF(a, b, c, d, x[8], S11, 0x698098d8); /* 9 */ - FF(d, a, b, c, x[9], S12, 0x8b44f7af); /* 10 */ - FF(c, d, a, b, x[10], S13, 0xffff5bb1); /* 11 */ - FF(b, c, d, a, x[11], S14, 0x895cd7be); /* 12 */ - FF(a, b, c, d, x[12], S11, 0x6b901122); /* 13 */ - FF(d, a, b, c, x[13], S12, 0xfd987193); /* 14 */ - FF(c, d, a, b, x[14], S13, 0xa679438e); /* 15 */ - FF(b, c, d, a, x[15], S14, 0x49b40821); /* 16 */ - - /* Round 2 */ - GG(a, b, c, d, x[1], S21, 0xf61e2562); /* 17 */ - GG(d, a, b, c, x[6], S22, 0xc040b340); /* 18 */ - GG(c, d, a, b, x[11], S23, 0x265e5a51); /* 19 */ - GG(b, c, d, a, x[0], S24, 0xe9b6c7aa); /* 20 */ - GG(a, b, c, d, x[5], S21, 0xd62f105d); /* 21 */ - GG(d, a, b, c, x[10], S22, 0x2441453); /* 22 */ - GG(c, d, a, b, x[15], S23, 0xd8a1e681); /* 23 */ - GG(b, c, d, a, x[4], S24, 0xe7d3fbc8); /* 24 */ - GG(a, b, c, d, x[9], S21, 0x21e1cde6); /* 25 */ - GG(d, a, b, c, x[14], S22, 0xc33707d6); /* 26 */ - GG(c, d, a, b, x[3], S23, 0xf4d50d87); /* 27 */ - GG(b, c, d, a, x[8], S24, 0x455a14ed); /* 28 */ - GG(a, b, c, d, x[13], S21, 0xa9e3e905); /* 29 */ - GG(d, a, b, c, x[2], S22, 0xfcefa3f8); /* 30 */ - GG(c, d, a, b, x[7], S23, 0x676f02d9); /* 31 */ - GG(b, c, d, a, x[12], S24, 0x8d2a4c8a); /* 32 */ - - /* Round 3 */ - HH(a, b, c, d, x[5], S31, 0xfffa3942); /* 33 */ - HH(d, a, b, c, x[8], S32, 0x8771f681); /* 34 */ - HH(c, d, a, b, x[11], S33, 0x6d9d6122); /* 35 */ - HH(b, c, d, a, x[14], S34, 0xfde5380c); /* 36 */ - HH(a, b, c, d, x[1], S31, 0xa4beea44); /* 37 */ - HH(d, a, b, c, x[4], S32, 0x4bdecfa9); /* 38 */ - HH(c, d, a, b, x[7], S33, 0xf6bb4b60); /* 39 */ - HH(b, c, d, a, x[10], S34, 0xbebfbc70); /* 40 */ - HH(a, b, c, d, x[13], S31, 0x289b7ec6); /* 41 */ - HH(d, a, b, c, x[0], S32, 0xeaa127fa); /* 42 */ - HH(c, d, a, b, x[3], S33, 0xd4ef3085); /* 43 */ - HH(b, c, d, a, x[6], S34, 0x4881d05); /* 44 */ - HH(a, b, c, d, x[9], S31, 0xd9d4d039); /* 45 */ - HH(d, a, b, c, x[12], S32, 0xe6db99e5); /* 46 */ - HH(c, d, a, b, x[15], S33, 0x1fa27cf8); /* 47 */ - HH(b, c, d, a, x[2], S34, 0xc4ac5665); /* 48 */ - - /* Round 4 */ - II(a, b, c, d, x[0], S41, 0xf4292244); /* 49 */ - II(d, a, b, c, x[7], S42, 0x432aff97); /* 50 */ - II(c, d, a, b, x[14], S43, 0xab9423a7); /* 51 */ - II(b, c, d, a, x[5], S44, 0xfc93a039); /* 52 */ - II(a, b, c, d, x[12], S41, 0x655b59c3); /* 53 */ - II(d, a, b, c, x[3], S42, 0x8f0ccc92); /* 54 */ - II(c, d, a, b, x[10], S43, 0xffeff47d); /* 55 */ - II(b, c, d, a, x[1], S44, 0x85845dd1); /* 56 */ - II(a, b, c, d, x[8], S41, 0x6fa87e4f); /* 57 */ - II(d, a, b, c, x[15], S42, 0xfe2ce6e0); /* 58 */ - II(c, d, a, b, x[6], S43, 0xa3014314); /* 59 */ - II(b, c, d, a, x[13], S44, 0x4e0811a1); /* 60 */ - II(a, b, c, d, x[4], S41, 0xf7537e82); /* 61 */ - II(d, a, b, c, x[11], S42, 0xbd3af235); /* 62 */ - II(c, d, a, b, x[2], S43, 0x2ad7d2bb); /* 63 */ - II(b, c, d, a, x[9], S44, 0xeb86d391); /* 64 */ - - state[0] += a; - state[1] += b; - state[2] += c; - state[3] += d; - - /* Zeroize sensitive information. */ - memset((VOIDPTR)x, 0, sizeof(x)); -} |