X-Git-Url: https://git.saurik.com/apple/security.git/blobdiff_plain/84aacf34eae6543be9f0280b2015385f91e5c2c6..b54c578e17e9bcbd74aa30ea75e25e955b9a6205:/OSX/libsecurity_cryptkit/lib/ckMD5.c?ds=inline diff --git a/OSX/libsecurity_cryptkit/lib/ckMD5.c b/OSX/libsecurity_cryptkit/lib/ckMD5.c deleted file mode 100644 index 76f61d19..00000000 --- a/OSX/libsecurity_cryptkit/lib/ckMD5.c +++ /dev/null @@ -1,365 +0,0 @@ -/* - File: MD5.c - - Written by: Colin Plumb - - Copyright: Copyright (c) 1998,2011,2014 Apple Inc. All Rights Reserved. - - Change History (most recent first): - - <7> 10/06/98 ap Changed to compile with C++. - - To Do: -*/ - -/* Copyright (c) 1998,2011,2014 Apple Inc. All Rights Reserved. - * - * NOTICE: USE OF THE MATERIALS ACCOMPANYING THIS NOTICE IS SUBJECT - * TO THE TERMS OF THE SIGNED "FAST ELLIPTIC ENCRYPTION (FEE) REFERENCE - * SOURCE CODE EVALUATION AGREEMENT" BETWEEN APPLE, INC. AND THE - * ORIGINAL LICENSEE THAT OBTAINED THESE MATERIALS FROM APPLE, - * INC. ANY USE OF THESE MATERIALS NOT PERMITTED BY SUCH AGREEMENT WILL - * EXPOSE YOU TO LIABILITY. - *************************************************************************** - * - * MD5.c - */ - -/* - * This code implements the MD5 message-digest algorithm. - * The algorithm is due to Ron Rivest. This code was - * written by Colin Plumb in 1993, no copyright is claimed. - * This code is in the public domain; do with it what you wish. - * - * Equivalent code is available from RSA Data Security, Inc. - * This code has been tested against that, and is equivalent, - * except that you don't need to include two pages of legalese - * with every copy. - * - * To compute the message digest of a chunk of bytes, declare an - * MD5Context structure, pass it to MD5Init, call MD5Update as - * needed on buffers full of bytes, and then call MD5Final, which - * will fill a supplied 16-byte array with the digest. - */ - -/* - * Revision History - * ---------------- - * 06 Feb 1997 at Apple - * Fixed endian-dependent cast in MD5Final() - * Made byteReverse() tolerant of platform-dependent alignment - * restrictions - */ - -#include "ckconfig.h" - -#if CRYPTKIT_MD5_ENABLE && !CRYPTKIT_LIBMD_DIGEST - -#include "ckMD5.h" -#include "platform.h" -#include "byteRep.h" -#include - - -#define MD5_DEBUG 0 - -#if MD5_DEBUG -static inline void dumpCtx(MD5Context *ctx, char *label) -{ - int i; - - printf("%s\n", label); - printf("buf = "); - for(i=0; i<4; i++) { - printf("%x:", ctx->buf[i]); - } - printf("\nbits: %d:%d\n", ctx->bits[0], ctx->bits[1]); - printf("in[]:\n "); - for(i=0; i<64; i++) { - printf("%02x:", ctx->in[i]); - if((i % 16) == 15) { - printf("\n "); - } - } - printf("\n"); -} -#else // MD5_DEBUG -#define dumpCtx(ctx, label) -#endif // MD5_DEBUG - -static void MD5Transform(UINT32 buf[4], UINT32 const in[16]); - -#if __LITTLE_ENDIAN__ -#define byteReverse(buf, len) /* Nothing */ -#else -static void byteReverse(unsigned char *buf, unsigned longs); - -#ifndef ASM_MD5 -/* - * Note: this code is harmless on little-endian machines. - */ -static void byteReverse(unsigned char *buf, unsigned longs) -{ -#if old_way - /* - * this code is NOT harmless on big-endian machine which require - * natural alignment. - */ - UINT32 t; - do { - t = (UINT32) ((unsigned) buf[3] << 8 | buf[2]) << 16 | - ((unsigned) buf[1] << 8 | buf[0]); - *(UINT32 *) buf = t; - buf += 4; - } while (--longs); -#else // new_way - - unsigned char t; - do { - t = buf[0]; - buf[0] = buf[3]; - buf[3] = t; - t = buf[1]; - buf[1] = buf[2]; - buf[2] = t; - buf += 4; - } while (--longs); -#endif // old_way -} -#endif // ASM_MD5 -#endif // __LITTLE_ENDIAN__ - -/* - * Start MD5 accumulation. Set bit count to 0 and buffer to mysterious - * initialization constants. - */ -void MD5Init(MD5Context *ctx) -{ - ctx->buf[0] = 0x67452301; - ctx->buf[1] = 0xefcdab89; - ctx->buf[2] = 0x98badcfe; - ctx->buf[3] = 0x10325476; - - ctx->bits[0] = 0; - ctx->bits[1] = 0; -} - -/* - * Update context to reflect the concatenation of another buffer full - * of bytes. - */ -void MD5Update(MD5Context *ctx, unsigned char const *buf, unsigned len) -{ - UINT32 t; - - dumpCtx(ctx, "MD5.c update top"); - /* Update bitcount */ - - t = ctx->bits[0]; - if ((ctx->bits[0] = t + ((UINT32) len << 3)) < t) - ctx->bits[1]++; /* Carry from low to high */ - ctx->bits[1] += len >> 29; - - t = (t >> 3) & 0x3f; /* Bytes already in shsInfo->data */ - - /* Handle any leading odd-sized chunks */ - - if (t) { - unsigned char *p = (unsigned char *) ctx->in + t; - - t = 64 - t; - if (len < t) { - memcpy(p, buf, len); - return; - } - memcpy(p, buf, t); - byteReverse(ctx->in, 16); - MD5Transform(ctx->buf, (UINT32 *) ctx->in); - dumpCtx(ctx, "update - return from transform (1)"); - buf += t; - len -= t; - } - /* Process data in 64-byte chunks */ - - while (len >= 64) { - memcpy(ctx->in, buf, 64); - byteReverse(ctx->in, 16); - MD5Transform(ctx->buf, (UINT32 *) ctx->in); - dumpCtx(ctx, "update - return from transform (2)"); - buf += 64; - len -= 64; - } - - /* Handle any remaining bytes of data. */ - - memcpy(ctx->in, buf, len); -} - -/* - * Final wrapup - pad to 64-byte boundary with the bit pattern - * 1 0* (64-bit count of bits processed, MSB-first) - */ -void MD5Final(MD5Context *ctx, unsigned char *digest) -{ - unsigned count; - unsigned char *p; - - dumpCtx(ctx, "final top"); - - /* Compute number of bytes mod 64 */ - count = (ctx->bits[0] >> 3) & 0x3F; - - /* Set the first char of padding to 0x80. This is safe since there is - always at least one byte free */ - p = ctx->in + count; - *p++ = 0x80; - #if MD5_DEBUG - printf("in[%d] = %x\n", count, ctx->in[count]); - #endif - /* Bytes of padding needed to make 64 bytes */ - count = 64 - 1 - count; - - /* Pad out to 56 mod 64 */ - dumpCtx(ctx, "final, before pad"); - if (count < 8) { - /* Two lots of padding: Pad the first block to 64 bytes */ - bzero(p, count); - byteReverse(ctx->in, 16); - MD5Transform(ctx->buf, (UINT32 *) ctx->in); - - /* Now fill the next block with 56 bytes */ - bzero(ctx->in, 56); - } else { - /* Pad block to 56 bytes */ - bzero(p, count - 8); - } - byteReverse(ctx->in, 14); - - /* Append length in bits and transform */ - #if old_way - /* - * On a little endian machine, this writes the l.s. byte of - * the bit count to ctx->in[56] and the m.s byte of the bit count to - * ctx->in[63]. - */ - ((UINT32 *) ctx->in)[14] = ctx->bits[0]; - ((UINT32 *) ctx->in)[15] = ctx->bits[1]; - #else // new_way - intToByteRep(ctx->bits[0], &ctx->in[56]); - intToByteRep(ctx->bits[1], &ctx->in[60]); - #endif // new_way - - dumpCtx(ctx, "last transform"); - MD5Transform(ctx->buf, (UINT32 *) ctx->in); - byteReverse((unsigned char *) ctx->buf, 4); - memcpy(digest, ctx->buf, MD5_DIGEST_SIZE); - dumpCtx(ctx, "final end"); - - bzero(ctx, sizeof(*ctx)); /* In case it's sensitive */ -} - -#ifndef ASM_MD5 - -/* The four core functions - F1 is optimized somewhat */ - -/* #define F1(x, y, z) (x & y | ~x & z) */ -#define F1(x, y, z) (z ^ (x & (y ^ z))) -#define F2(x, y, z) F1(z, x, y) -#define F3(x, y, z) (x ^ y ^ z) -#define F4(x, y, z) (y ^ (x | ~z)) - -/* This is the central step in the MD5 algorithm. */ -#define MD5STEP(f, w, x, y, z, data, s) \ - ( w += f(x, y, z) + data, w = w<>(32-s), w += x ) - -/* - * The core of the MD5 algorithm, this alters an existing MD5 hash to - * reflect the addition of 16 longwords of new data. MD5Update blocks - * the data and converts bytes into longwords for this routine. - */ -static void MD5Transform(UINT32 buf[4], UINT32 const in[16]) -{ - register UINT32 a, b, c, d; - - a = buf[0]; - b = buf[1]; - c = buf[2]; - d = buf[3]; - - MD5STEP(F1, a, b, c, d, in[0] + 0xd76aa478, 7); - MD5STEP(F1, d, a, b, c, in[1] + 0xe8c7b756, 12); - MD5STEP(F1, c, d, a, b, in[2] + 0x242070db, 17); - MD5STEP(F1, b, c, d, a, in[3] + 0xc1bdceee, 22); - MD5STEP(F1, a, b, c, d, in[4] + 0xf57c0faf, 7); - MD5STEP(F1, d, a, b, c, in[5] + 0x4787c62a, 12); - MD5STEP(F1, c, d, a, b, in[6] + 0xa8304613, 17); - MD5STEP(F1, b, c, d, a, in[7] + 0xfd469501, 22); - MD5STEP(F1, a, b, c, d, in[8] + 0x698098d8, 7); - MD5STEP(F1, d, a, b, c, in[9] + 0x8b44f7af, 12); - MD5STEP(F1, c, d, a, b, in[10] + 0xffff5bb1, 17); - MD5STEP(F1, b, c, d, a, in[11] + 0x895cd7be, 22); - MD5STEP(F1, a, b, c, d, in[12] + 0x6b901122, 7); - MD5STEP(F1, d, a, b, c, in[13] + 0xfd987193, 12); - MD5STEP(F1, c, d, a, b, in[14] + 0xa679438e, 17); - MD5STEP(F1, b, c, d, a, in[15] + 0x49b40821, 22); - - MD5STEP(F2, a, b, c, d, in[1] + 0xf61e2562, 5); - MD5STEP(F2, d, a, b, c, in[6] + 0xc040b340, 9); - MD5STEP(F2, c, d, a, b, in[11] + 0x265e5a51, 14); - MD5STEP(F2, b, c, d, a, in[0] + 0xe9b6c7aa, 20); - MD5STEP(F2, a, b, c, d, in[5] + 0xd62f105d, 5); - MD5STEP(F2, d, a, b, c, in[10] + 0x02441453, 9); - MD5STEP(F2, c, d, a, b, in[15] + 0xd8a1e681, 14); - MD5STEP(F2, b, c, d, a, in[4] + 0xe7d3fbc8, 20); - MD5STEP(F2, a, b, c, d, in[9] + 0x21e1cde6, 5); - MD5STEP(F2, d, a, b, c, in[14] + 0xc33707d6, 9); - MD5STEP(F2, c, d, a, b, in[3] + 0xf4d50d87, 14); - MD5STEP(F2, b, c, d, a, in[8] + 0x455a14ed, 20); - MD5STEP(F2, a, b, c, d, in[13] + 0xa9e3e905, 5); - MD5STEP(F2, d, a, b, c, in[2] + 0xfcefa3f8, 9); - MD5STEP(F2, c, d, a, b, in[7] + 0x676f02d9, 14); - MD5STEP(F2, b, c, d, a, in[12] + 0x8d2a4c8a, 20); - - MD5STEP(F3, a, b, c, d, in[5] + 0xfffa3942, 4); - MD5STEP(F3, d, a, b, c, in[8] + 0x8771f681, 11); - MD5STEP(F3, c, d, a, b, in[11] + 0x6d9d6122, 16); - MD5STEP(F3, b, c, d, a, in[14] + 0xfde5380c, 23); - MD5STEP(F3, a, b, c, d, in[1] + 0xa4beea44, 4); - MD5STEP(F3, d, a, b, c, in[4] + 0x4bdecfa9, 11); - MD5STEP(F3, c, d, a, b, in[7] + 0xf6bb4b60, 16); - MD5STEP(F3, b, c, d, a, in[10] + 0xbebfbc70, 23); - MD5STEP(F3, a, b, c, d, in[13] + 0x289b7ec6, 4); - MD5STEP(F3, d, a, b, c, in[0] + 0xeaa127fa, 11); - MD5STEP(F3, c, d, a, b, in[3] + 0xd4ef3085, 16); - MD5STEP(F3, b, c, d, a, in[6] + 0x04881d05, 23); - MD5STEP(F3, a, b, c, d, in[9] + 0xd9d4d039, 4); - MD5STEP(F3, d, a, b, c, in[12] + 0xe6db99e5, 11); - MD5STEP(F3, c, d, a, b, in[15] + 0x1fa27cf8, 16); - MD5STEP(F3, b, c, d, a, in[2] + 0xc4ac5665, 23); - - MD5STEP(F4, a, b, c, d, in[0] + 0xf4292244, 6); - MD5STEP(F4, d, a, b, c, in[7] + 0x432aff97, 10); - MD5STEP(F4, c, d, a, b, in[14] + 0xab9423a7, 15); - MD5STEP(F4, b, c, d, a, in[5] + 0xfc93a039, 21); - MD5STEP(F4, a, b, c, d, in[12] + 0x655b59c3, 6); - MD5STEP(F4, d, a, b, c, in[3] + 0x8f0ccc92, 10); - MD5STEP(F4, c, d, a, b, in[10] + 0xffeff47d, 15); - MD5STEP(F4, b, c, d, a, in[1] + 0x85845dd1, 21); - MD5STEP(F4, a, b, c, d, in[8] + 0x6fa87e4f, 6); - MD5STEP(F4, d, a, b, c, in[15] + 0xfe2ce6e0, 10); - MD5STEP(F4, c, d, a, b, in[6] + 0xa3014314, 15); - MD5STEP(F4, b, c, d, a, in[13] + 0x4e0811a1, 21); - MD5STEP(F4, a, b, c, d, in[4] + 0xf7537e82, 6); - MD5STEP(F4, d, a, b, c, in[11] + 0xbd3af235, 10); - MD5STEP(F4, c, d, a, b, in[2] + 0x2ad7d2bb, 15); - MD5STEP(F4, b, c, d, a, in[9] + 0xeb86d391, 21); - - buf[0] += a; - buf[1] += b; - buf[2] += c; - buf[3] += d; -} - -#endif /* ASM_MD5 */ - -#endif /* CRYPTKIT_MD5_ENABLE && CRYPTKIT_LIBMD_DIGEST */