diff options
Diffstat (limited to '3rdparty/plibsys/src/pcryptohash-md5.c')
| -rw-r--r-- | 3rdparty/plibsys/src/pcryptohash-md5.c | 273 |
1 files changed, 273 insertions, 0 deletions
diff --git a/3rdparty/plibsys/src/pcryptohash-md5.c b/3rdparty/plibsys/src/pcryptohash-md5.c new file mode 100644 index 0000000..ee09033 --- /dev/null +++ b/3rdparty/plibsys/src/pcryptohash-md5.c @@ -0,0 +1,273 @@ +/* + * The MIT License + * + * Copyright (C) 2010-2016 Alexander Saprykin <saprykin.spb@gmail.com> + * + * Permission is hereby granted, free of charge, to any person obtaining + * a copy of this software and associated documentation files (the + * 'Software'), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sublicense, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. + * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY + * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, + * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE + * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ + +#include "pmem.h" +#include "pcryptohash-md5.h" + +#include <string.h> +#include <stdlib.h> + +struct PHashMD5_ { + union buf_ { + puchar buf[64]; + puint32 buf_w[16]; + } buf; + puint32 hash[4]; + + puint32 len_high; + puint32 len_low; +}; + +static const puchar pp_crypto_hash_md5_pad[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 +}; + +static void pp_crypto_hash_md5_swap_bytes (puint32 *data, puint words); +static void pp_crypto_hash_md5_process (PHashMD5 *ctx, const puint32 data[16]); + +#define P_MD5_ROTL(val, shift) ((val) << (shift) | (val) >> (32 - (shift))) + +#define P_MD5_F(x, y, z) (z ^ (x & (y ^ z))) +#define P_MD5_G(x, y, z) P_MD5_F (z, x, y) +#define P_MD5_H(x, y, z) (x ^ y ^ z) +#define P_MD5_I(x, y, z) (y ^ (x | (~z))) + +#define P_MD5_ROUND_0(a, b, c, d, k, i, s) \ + a += P_MD5_F (b, c, d) + data[k] + i, a = P_MD5_ROTL (a, s) + b + +#define P_MD5_ROUND_1(a, b, c, d, k, i, s) \ + a += P_MD5_G (b, c, d) + data[k] + i, a = P_MD5_ROTL (a, s) + b + + +#define P_MD5_ROUND_2(a, b, c, d, k, i, s) \ + a += P_MD5_H (b, c, d) + data[k] + i, a = P_MD5_ROTL (a, s) + b + +#define P_MD5_ROUND_3(a, b, c, d, k, i, s) \ + a += P_MD5_I (b, c, d) + data[k] + i, a = P_MD5_ROTL (a, s) + b + +static void +pp_crypto_hash_md5_swap_bytes (puint32 *data, + puint words) +{ +#ifndef PLIBSYS_IS_BIGENDIAN + P_UNUSED (data); + P_UNUSED (words); +#else + while (words-- > 0) { + *data = PUINT32_TO_LE (*data); + ++data; + } +#endif +} + +static void +pp_crypto_hash_md5_process (PHashMD5 *ctx, + const puint32 data[16]) +{ + puint32 A, B, C, D; + + A = ctx->hash[0]; + B = ctx->hash[1]; + C = ctx->hash[2]; + D = ctx->hash[3]; + + P_MD5_ROUND_0 (A, B, C, D, 0, 0xD76AA478, 7); + P_MD5_ROUND_0 (D, A, B, C, 1, 0xE8C7B756, 12); + P_MD5_ROUND_0 (C, D, A, B, 2, 0x242070DB, 17); + P_MD5_ROUND_0 (B, C, D, A, 3, 0xC1BDCEEE, 22); + P_MD5_ROUND_0 (A, B, C, D, 4, 0xF57C0FAF, 7); + P_MD5_ROUND_0 (D, A, B, C, 5, 0x4787C62A, 12); + P_MD5_ROUND_0 (C, D, A, B, 6, 0xA8304613, 17); + P_MD5_ROUND_0 (B, C, D, A, 7, 0xFD469501, 22); + P_MD5_ROUND_0 (A, B, C, D, 8, 0x698098D8, 7); + P_MD5_ROUND_0 (D, A, B, C, 9, 0x8B44F7AF, 12); + P_MD5_ROUND_0 (C, D, A, B, 10, 0xFFFF5BB1, 17); + P_MD5_ROUND_0 (B, C, D, A, 11, 0x895CD7BE, 22); + P_MD5_ROUND_0 (A, B, C, D, 12, 0x6B901122, 7); + P_MD5_ROUND_0 (D, A, B, C, 13, 0xFD987193, 12); + P_MD5_ROUND_0 (C, D, A, B, 14, 0xA679438E, 17); + P_MD5_ROUND_0 (B, C, D, A, 15, 0x49B40821, 22); + + P_MD5_ROUND_1 (A, B, C, D, 1, 0xF61E2562, 5); + P_MD5_ROUND_1 (D, A, B, C, 6, 0xC040B340, 9); + P_MD5_ROUND_1 (C, D, A, B, 11, 0x265E5A51, 14); + P_MD5_ROUND_1 (B, C, D, A, 0, 0xE9B6C7AA, 20); + P_MD5_ROUND_1 (A, B, C, D, 5, 0xD62F105D, 5); + P_MD5_ROUND_1 (D, A, B, C, 10, 0x02441453, 9); + P_MD5_ROUND_1 (C, D, A, B, 15, 0xD8A1E681, 14); + P_MD5_ROUND_1 (B, C, D, A, 4, 0xE7D3FBC8, 20); + P_MD5_ROUND_1 (A, B, C, D, 9, 0x21E1CDE6, 5); + P_MD5_ROUND_1 (D, A, B, C, 14, 0xC33707D6, 9); + P_MD5_ROUND_1 (C, D, A, B, 3, 0xF4D50D87, 14); + P_MD5_ROUND_1 (B, C, D, A, 8, 0x455A14ED, 20); + P_MD5_ROUND_1 (A, B, C, D, 13, 0xA9E3E905, 5); + P_MD5_ROUND_1 (D, A, B, C, 2, 0xFCEFA3F8, 9); + P_MD5_ROUND_1 (C, D, A, B, 7, 0x676F02D9, 14); + P_MD5_ROUND_1 (B, C, D, A, 12, 0x8D2A4C8A, 20); + + P_MD5_ROUND_2 (A, B, C, D, 5, 0xFFFA3942, 4); + P_MD5_ROUND_2 (D, A, B, C, 8, 0x8771F681, 11); + P_MD5_ROUND_2 (C, D, A, B, 11, 0x6D9D6122, 16); + P_MD5_ROUND_2 (B, C, D, A, 14, 0xFDE5380C, 23); + P_MD5_ROUND_2 (A, B, C, D, 1, 0xA4BEEA44, 4); + P_MD5_ROUND_2 (D, A, B, C, 4, 0x4BDECFA9, 11); + P_MD5_ROUND_2 (C, D, A, B, 7, 0xF6BB4B60, 16); + P_MD5_ROUND_2 (B, C, D, A, 10, 0xBEBFBC70, 23); + P_MD5_ROUND_2 (A, B, C, D, 13, 0x289B7EC6, 4); + P_MD5_ROUND_2 (D, A, B, C, 0, 0xEAA127FA, 11); + P_MD5_ROUND_2 (C, D, A, B, 3, 0xD4EF3085, 16); + P_MD5_ROUND_2 (B, C, D, A, 6, 0x04881D05, 23); + P_MD5_ROUND_2 (A, B, C, D, 9, 0xD9D4D039, 4); + P_MD5_ROUND_2 (D, A, B, C, 12, 0xE6DB99E5, 11); + P_MD5_ROUND_2 (C, D, A, B, 15, 0x1FA27CF8, 16); + P_MD5_ROUND_2 (B, C, D, A, 2, 0xC4AC5665, 23); + + P_MD5_ROUND_3 (A, B, C, D, 0, 0xF4292244, 6); + P_MD5_ROUND_3 (D, A, B, C, 7, 0x432AFF97, 10); + P_MD5_ROUND_3 (C, D, A, B, 14, 0xAB9423A7, 15); + P_MD5_ROUND_3 (B, C, D, A, 5, 0xFC93A039, 21); + P_MD5_ROUND_3 (A, B, C, D, 12, 0x655B59C3, 6); + P_MD5_ROUND_3 (D, A, B, C, 3, 0x8F0CCC92, 10); + P_MD5_ROUND_3 (C, D, A, B, 10, 0xFFEFF47D, 15); + P_MD5_ROUND_3 (B, C, D, A, 1, 0x85845DD1, 21); + P_MD5_ROUND_3 (A, B, C, D, 8, 0x6FA87E4F, 6); + P_MD5_ROUND_3 (D, A, B, C, 15, 0xFE2CE6E0, 10); + P_MD5_ROUND_3 (C, D, A, B, 6, 0xA3014314, 15); + P_MD5_ROUND_3 (B, C, D, A, 13, 0x4E0811A1, 21); + P_MD5_ROUND_3 (A, B, C, D, 4, 0xF7537E82, 6); + P_MD5_ROUND_3 (D, A, B, C, 11, 0xBD3AF235, 10); + P_MD5_ROUND_3 (C, D, A, B, 2, 0x2AD7D2BB, 15); + P_MD5_ROUND_3 (B, C, D, A, 9, 0xEB86D391, 21); + + ctx->hash[0] += A; + ctx->hash[1] += B; + ctx->hash[2] += C; + ctx->hash[3] += D; +} + +void +p_crypto_hash_md5_reset (PHashMD5 *ctx) +{ + memset (ctx->buf.buf, 0, 64); + + ctx->len_low = 0; + ctx->len_high = 0; + + ctx->hash[0] = 0x67452301; + ctx->hash[1] = 0xEFCDAB89; + ctx->hash[2] = 0x98BADCFE; + ctx->hash[3] = 0x10325476; +} + +PHashMD5 * +p_crypto_hash_md5_new (void) +{ + PHashMD5 *ret; + + if (P_UNLIKELY ((ret = p_malloc0 (sizeof (PHashMD5))) == NULL)) + return NULL; + + p_crypto_hash_md5_reset (ret); + + return ret; +} + +void +p_crypto_hash_md5_update (PHashMD5 *ctx, + const puchar *data, + psize len) +{ + puint32 left, to_fill; + + left = ctx->len_low & 0x3F; + to_fill = 64 - left; + + ctx->len_low += (puint32) len; + + if (ctx->len_low < (puint32) len) + ++ctx->len_high; + + if (left && (puint32) len >= to_fill) { + memcpy (ctx->buf.buf + left, data, to_fill); + pp_crypto_hash_md5_swap_bytes (ctx->buf.buf_w, 16); + pp_crypto_hash_md5_process (ctx, ctx->buf.buf_w); + + data += to_fill; + len -= to_fill; + left = 0; + } + + while (len >= 64) { + memcpy (ctx->buf.buf, data, 64); + pp_crypto_hash_md5_swap_bytes (ctx->buf.buf_w, 16); + pp_crypto_hash_md5_process (ctx, ctx->buf.buf_w); + + data += 64; + len -= 64; + } + + if (len > 0) + memcpy (ctx->buf.buf + left, data, len); +} + +void +p_crypto_hash_md5_finish (PHashMD5 *ctx) +{ + puint32 high, low; + pint left, last; + + left = ctx->len_low & 0x3F; + last = (left < 56) ? (56 - left) : (120 - left); + + low = ctx->len_low << 3; + high = ctx->len_high << 3 + | ctx->len_low >> 29; + + if (last > 0) + p_crypto_hash_md5_update (ctx, pp_crypto_hash_md5_pad, (psize) last); + + ctx->buf.buf_w[14] = low; + ctx->buf.buf_w[15] = high; + + pp_crypto_hash_md5_swap_bytes (ctx->buf.buf_w, 14); + pp_crypto_hash_md5_process (ctx, ctx->buf.buf_w); + + pp_crypto_hash_md5_swap_bytes (ctx->hash, 4); +} + +const puchar * +p_crypto_hash_md5_digest (PHashMD5 *ctx) +{ + return (const puchar *) ctx->hash; +} + +void +p_crypto_hash_md5_free (PHashMD5 *ctx) +{ + p_free (ctx); +} |