diff options
Diffstat (limited to 'lib/md4.c')
| -rw-r--r-- | lib/md4.c | 148 |
1 files changed, 76 insertions, 72 deletions
@@ -37,6 +37,9 @@ #if (OPENSSL_VERSION_NUMBER >= 0x30000000L) && !defined(USE_AMISSL) /* OpenSSL 3.0.0 marks the MD4 functions as deprecated */ #define OPENSSL_NO_MD4 +#else +/* Cover also OPENSSL_NO_MD4 configured in openssl */ +#include <openssl/opensslconf.h> #endif #endif /* USE_OPENSSL */ @@ -217,7 +220,7 @@ static void MD4_Final(unsigned char *result, MD4_CTX *ctx) } #else -/* When no other crypto library is available, or the crypto library doesn't +/* When no other crypto library is available, or the crypto library does not * support MD4, we use this code segment this implementation of it * * This is an OpenSSL-compatible implementation of the RSA Data Security, Inc. @@ -229,8 +232,8 @@ static void MD4_Final(unsigned char *result, MD4_CTX *ctx) * Author: * Alexander Peslyak, better known as Solar Designer <solar at openwall.com> * - * This software was written by Alexander Peslyak in 2001. No copyright is - * claimed, and the software is hereby placed in the public domain. In case + * This software was written by Alexander Peslyak in 2001. No copyright is + * claimed, and the software is hereby placed in the public domain. In case * this attempt to disclaim copyright and place the software in the public * domain is deemed null and void, then the software is Copyright (c) 2001 * Alexander Peslyak and it is hereby released to the general public under the @@ -239,19 +242,19 @@ static void MD4_Final(unsigned char *result, MD4_CTX *ctx) * Redistribution and use in source and binary forms, with or without * modification, are permitted. * - * There's ABSOLUTELY NO WARRANTY, express or implied. + * There is ABSOLUTELY NO WARRANTY, express or implied. * * (This is a heavily cut-down "BSD license".) * * This differs from Colin Plumb's older public domain implementation in that * no exactly 32-bit integer data type is required (any 32-bit or wider - * unsigned integer data type will do), there's no compile-time endianness - * configuration, and the function prototypes match OpenSSL's. No code from + * unsigned integer data type will do), there is no compile-time endianness + * configuration, and the function prototypes match OpenSSL's. No code from * Colin Plumb's implementation has been reused; this comment merely compares * the properties of the two independent implementations. * * The primary goals of this implementation are portability and ease of use. - * It is meant to be fast, but not as fast as possible. Some known + * It is meant to be fast, but not as fast as possible. Some known * optimizations are not included to reduce source code size and avoid * compile-time configuration. */ @@ -277,14 +280,14 @@ static void MD4_Final(unsigned char *result, MD4_CTX *ctx); * F and G are optimized compared to their RFC 1320 definitions, with the * optimization for F borrowed from Colin Plumb's MD5 implementation. */ -#define F(x, y, z) ((z) ^ ((x) & ((y) ^ (z)))) -#define G(x, y, z) (((x) & ((y) | (z))) | ((y) & (z))) -#define H(x, y, z) ((x) ^ (y) ^ (z)) +#define MD4_F(x, y, z) ((z) ^ ((x) & ((y) ^ (z)))) +#define MD4_G(x, y, z) (((x) & ((y) | (z))) | ((y) & (z))) +#define MD4_H(x, y, z) ((x) ^ (y) ^ (z)) /* * The MD4 transformation for all three rounds. */ -#define STEP(f, a, b, c, d, x, s) \ +#define MD4_STEP(f, a, b, c, d, x, s) \ (a) += f((b), (c), (d)) + (x); \ (a) = (((a) << (s)) | (((a) & 0xffffffff) >> (32 - (s)))); @@ -293,30 +296,31 @@ static void MD4_Final(unsigned char *result, MD4_CTX *ctx); * in a properly aligned word in host byte order. * * The check for little-endian architectures that tolerate unaligned - * memory accesses is just an optimization. Nothing will break if it - * doesn't work. + * memory accesses is just an optimization. Nothing will break if it + * does not work. */ #if defined(__i386__) || defined(__x86_64__) || defined(__vax__) -#define SET(n) \ +#define MD4_SET(n) \ (*(MD4_u32plus *)(void *)&ptr[(n) * 4]) -#define GET(n) \ - SET(n) +#define MD4_GET(n) \ + MD4_SET(n) #else -#define SET(n) \ +#define MD4_SET(n) \ (ctx->block[(n)] = \ (MD4_u32plus)ptr[(n) * 4] | \ ((MD4_u32plus)ptr[(n) * 4 + 1] << 8) | \ ((MD4_u32plus)ptr[(n) * 4 + 2] << 16) | \ ((MD4_u32plus)ptr[(n) * 4 + 3] << 24)) -#define GET(n) \ +#define MD4_GET(n) \ (ctx->block[(n)]) #endif /* * This processes one or more 64-byte data blocks, but does NOT update - * the bit counters. There are no alignment requirements. + * the bit counters. There are no alignment requirements. */ -static const void *body(MD4_CTX *ctx, const void *data, unsigned long size) +static const void *my_md4_body(MD4_CTX *ctx, + const void *data, unsigned long size) { const unsigned char *ptr; MD4_u32plus a, b, c, d; @@ -337,58 +341,58 @@ static const void *body(MD4_CTX *ctx, const void *data, unsigned long size) saved_d = d; /* Round 1 */ - STEP(F, a, b, c, d, SET(0), 3) - STEP(F, d, a, b, c, SET(1), 7) - STEP(F, c, d, a, b, SET(2), 11) - STEP(F, b, c, d, a, SET(3), 19) - STEP(F, a, b, c, d, SET(4), 3) - STEP(F, d, a, b, c, SET(5), 7) - STEP(F, c, d, a, b, SET(6), 11) - STEP(F, b, c, d, a, SET(7), 19) - STEP(F, a, b, c, d, SET(8), 3) - STEP(F, d, a, b, c, SET(9), 7) - STEP(F, c, d, a, b, SET(10), 11) - STEP(F, b, c, d, a, SET(11), 19) - STEP(F, a, b, c, d, SET(12), 3) - STEP(F, d, a, b, c, SET(13), 7) - STEP(F, c, d, a, b, SET(14), 11) - STEP(F, b, c, d, a, SET(15), 19) + MD4_STEP(MD4_F, a, b, c, d, MD4_SET(0), 3) + MD4_STEP(MD4_F, d, a, b, c, MD4_SET(1), 7) + MD4_STEP(MD4_F, c, d, a, b, MD4_SET(2), 11) + MD4_STEP(MD4_F, b, c, d, a, MD4_SET(3), 19) + MD4_STEP(MD4_F, a, b, c, d, MD4_SET(4), 3) + MD4_STEP(MD4_F, d, a, b, c, MD4_SET(5), 7) + MD4_STEP(MD4_F, c, d, a, b, MD4_SET(6), 11) + MD4_STEP(MD4_F, b, c, d, a, MD4_SET(7), 19) + MD4_STEP(MD4_F, a, b, c, d, MD4_SET(8), 3) + MD4_STEP(MD4_F, d, a, b, c, MD4_SET(9), 7) + MD4_STEP(MD4_F, c, d, a, b, MD4_SET(10), 11) + MD4_STEP(MD4_F, b, c, d, a, MD4_SET(11), 19) + MD4_STEP(MD4_F, a, b, c, d, MD4_SET(12), 3) + MD4_STEP(MD4_F, d, a, b, c, MD4_SET(13), 7) + MD4_STEP(MD4_F, c, d, a, b, MD4_SET(14), 11) + MD4_STEP(MD4_F, b, c, d, a, MD4_SET(15), 19) /* Round 2 */ - STEP(G, a, b, c, d, GET(0) + 0x5a827999, 3) - STEP(G, d, a, b, c, GET(4) + 0x5a827999, 5) - STEP(G, c, d, a, b, GET(8) + 0x5a827999, 9) - STEP(G, b, c, d, a, GET(12) + 0x5a827999, 13) - STEP(G, a, b, c, d, GET(1) + 0x5a827999, 3) - STEP(G, d, a, b, c, GET(5) + 0x5a827999, 5) - STEP(G, c, d, a, b, GET(9) + 0x5a827999, 9) - STEP(G, b, c, d, a, GET(13) + 0x5a827999, 13) - STEP(G, a, b, c, d, GET(2) + 0x5a827999, 3) - STEP(G, d, a, b, c, GET(6) + 0x5a827999, 5) - STEP(G, c, d, a, b, GET(10) + 0x5a827999, 9) - STEP(G, b, c, d, a, GET(14) + 0x5a827999, 13) - STEP(G, a, b, c, d, GET(3) + 0x5a827999, 3) - STEP(G, d, a, b, c, GET(7) + 0x5a827999, 5) - STEP(G, c, d, a, b, GET(11) + 0x5a827999, 9) - STEP(G, b, c, d, a, GET(15) + 0x5a827999, 13) + MD4_STEP(MD4_G, a, b, c, d, MD4_GET(0) + 0x5a827999, 3) + MD4_STEP(MD4_G, d, a, b, c, MD4_GET(4) + 0x5a827999, 5) + MD4_STEP(MD4_G, c, d, a, b, MD4_GET(8) + 0x5a827999, 9) + MD4_STEP(MD4_G, b, c, d, a, MD4_GET(12) + 0x5a827999, 13) + MD4_STEP(MD4_G, a, b, c, d, MD4_GET(1) + 0x5a827999, 3) + MD4_STEP(MD4_G, d, a, b, c, MD4_GET(5) + 0x5a827999, 5) + MD4_STEP(MD4_G, c, d, a, b, MD4_GET(9) + 0x5a827999, 9) + MD4_STEP(MD4_G, b, c, d, a, MD4_GET(13) + 0x5a827999, 13) + MD4_STEP(MD4_G, a, b, c, d, MD4_GET(2) + 0x5a827999, 3) + MD4_STEP(MD4_G, d, a, b, c, MD4_GET(6) + 0x5a827999, 5) + MD4_STEP(MD4_G, c, d, a, b, MD4_GET(10) + 0x5a827999, 9) + MD4_STEP(MD4_G, b, c, d, a, MD4_GET(14) + 0x5a827999, 13) + MD4_STEP(MD4_G, a, b, c, d, MD4_GET(3) + 0x5a827999, 3) + MD4_STEP(MD4_G, d, a, b, c, MD4_GET(7) + 0x5a827999, 5) + MD4_STEP(MD4_G, c, d, a, b, MD4_GET(11) + 0x5a827999, 9) + MD4_STEP(MD4_G, b, c, d, a, MD4_GET(15) + 0x5a827999, 13) /* Round 3 */ - STEP(H, a, b, c, d, GET(0) + 0x6ed9eba1, 3) - STEP(H, d, a, b, c, GET(8) + 0x6ed9eba1, 9) - STEP(H, c, d, a, b, GET(4) + 0x6ed9eba1, 11) - STEP(H, b, c, d, a, GET(12) + 0x6ed9eba1, 15) - STEP(H, a, b, c, d, GET(2) + 0x6ed9eba1, 3) - STEP(H, d, a, b, c, GET(10) + 0x6ed9eba1, 9) - STEP(H, c, d, a, b, GET(6) + 0x6ed9eba1, 11) - STEP(H, b, c, d, a, GET(14) + 0x6ed9eba1, 15) - STEP(H, a, b, c, d, GET(1) + 0x6ed9eba1, 3) - STEP(H, d, a, b, c, GET(9) + 0x6ed9eba1, 9) - STEP(H, c, d, a, b, GET(5) + 0x6ed9eba1, 11) - STEP(H, b, c, d, a, GET(13) + 0x6ed9eba1, 15) - STEP(H, a, b, c, d, GET(3) + 0x6ed9eba1, 3) - STEP(H, d, a, b, c, GET(11) + 0x6ed9eba1, 9) - STEP(H, c, d, a, b, GET(7) + 0x6ed9eba1, 11) - STEP(H, b, c, d, a, GET(15) + 0x6ed9eba1, 15) + MD4_STEP(MD4_H, a, b, c, d, MD4_GET(0) + 0x6ed9eba1, 3) + MD4_STEP(MD4_H, d, a, b, c, MD4_GET(8) + 0x6ed9eba1, 9) + MD4_STEP(MD4_H, c, d, a, b, MD4_GET(4) + 0x6ed9eba1, 11) + MD4_STEP(MD4_H, b, c, d, a, MD4_GET(12) + 0x6ed9eba1, 15) + MD4_STEP(MD4_H, a, b, c, d, MD4_GET(2) + 0x6ed9eba1, 3) + MD4_STEP(MD4_H, d, a, b, c, MD4_GET(10) + 0x6ed9eba1, 9) + MD4_STEP(MD4_H, c, d, a, b, MD4_GET(6) + 0x6ed9eba1, 11) + MD4_STEP(MD4_H, b, c, d, a, MD4_GET(14) + 0x6ed9eba1, 15) + MD4_STEP(MD4_H, a, b, c, d, MD4_GET(1) + 0x6ed9eba1, 3) + MD4_STEP(MD4_H, d, a, b, c, MD4_GET(9) + 0x6ed9eba1, 9) + MD4_STEP(MD4_H, c, d, a, b, MD4_GET(5) + 0x6ed9eba1, 11) + MD4_STEP(MD4_H, b, c, d, a, MD4_GET(13) + 0x6ed9eba1, 15) + MD4_STEP(MD4_H, a, b, c, d, MD4_GET(3) + 0x6ed9eba1, 3) + MD4_STEP(MD4_H, d, a, b, c, MD4_GET(11) + 0x6ed9eba1, 9) + MD4_STEP(MD4_H, c, d, a, b, MD4_GET(7) + 0x6ed9eba1, 11) + MD4_STEP(MD4_H, b, c, d, a, MD4_GET(15) + 0x6ed9eba1, 15) a += saved_a; b += saved_b; @@ -442,11 +446,11 @@ static void MD4_Update(MD4_CTX *ctx, const void *data, unsigned long size) memcpy(&ctx->buffer[used], data, available); data = (const unsigned char *)data + available; size -= available; - body(ctx, ctx->buffer, 64); + my_md4_body(ctx, ctx->buffer, 64); } if(size >= 64) { - data = body(ctx, data, size & ~(unsigned long)0x3f); + data = my_md4_body(ctx, data, size & ~(unsigned long)0x3f); size &= 0x3f; } @@ -465,7 +469,7 @@ static void MD4_Final(unsigned char *result, MD4_CTX *ctx) if(available < 8) { memset(&ctx->buffer[used], 0, available); - body(ctx, ctx->buffer, 64); + my_md4_body(ctx, ctx->buffer, 64); used = 0; available = 64; } @@ -482,7 +486,7 @@ static void MD4_Final(unsigned char *result, MD4_CTX *ctx) ctx->buffer[62] = curlx_ultouc((ctx->hi >> 16)&0xff); ctx->buffer[63] = curlx_ultouc(ctx->hi >> 24); - body(ctx, ctx->buffer, 64); + my_md4_body(ctx, ctx->buffer, 64); result[0] = curlx_ultouc((ctx->a)&0xff); result[1] = curlx_ultouc((ctx->a >> 8)&0xff); |