Important changes to repositories hosted on mbed.com
Mbed hosted mercurial repositories are deprecated and are due to be permanently deleted in July 2026.
To keep a copy of this software download the repository Zip archive or clone locally using Mercurial.
It is also possible to export all your personal repositories from the account settings page.
Diff: wolfcrypt/src/md2.c
- Revision:
- 17:ff9d1e86ad5f
- Parent:
- 16:048e5e270a58
--- a/wolfcrypt/src/md2.c Tue Nov 19 14:32:16 2019 +0000 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,163 +0,0 @@ -/* md2.c - * - * Copyright (C) 2006-2017 wolfSSL Inc. - * - * This file is part of wolfSSL. - * - * wolfSSL is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * wolfSSL is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335, USA - */ - - - -#ifdef HAVE_CONFIG_H - #include <config.h> -#endif - -#include <wolfssl/wolfcrypt/settings.h> - -#ifdef WOLFSSL_MD2 - -#include <wolfssl/wolfcrypt/md2.h> -#include <wolfssl/wolfcrypt/error-crypt.h> - -#ifdef NO_INLINE - #include <wolfssl/wolfcrypt/misc.h> -#else - #define WOLFSSL_MISC_INCLUDED - #include <wolfcrypt/src/misc.c> -#endif - - -void wc_InitMd2(Md2* md2) -{ - XMEMSET(md2->X, 0, MD2_X_SIZE); - XMEMSET(md2->C, 0, MD2_BLOCK_SIZE); - XMEMSET(md2->buffer, 0, MD2_BLOCK_SIZE); - md2->count = 0; -} - - -void wc_Md2Update(Md2* md2, const byte* data, word32 len) -{ - static const byte S[256] = - { - 41, 46, 67, 201, 162, 216, 124, 1, 61, 54, 84, 161, 236, 240, 6, - 19, 98, 167, 5, 243, 192, 199, 115, 140, 152, 147, 43, 217, 188, - 76, 130, 202, 30, 155, 87, 60, 253, 212, 224, 22, 103, 66, 111, 24, - 138, 23, 229, 18, 190, 78, 196, 214, 218, 158, 222, 73, 160, 251, - 245, 142, 187, 47, 238, 122, 169, 104, 121, 145, 21, 178, 7, 63, - 148, 194, 16, 137, 11, 34, 95, 33, 128, 127, 93, 154, 90, 144, 50, - 39, 53, 62, 204, 231, 191, 247, 151, 3, 255, 25, 48, 179, 72, 165, - 181, 209, 215, 94, 146, 42, 172, 86, 170, 198, 79, 184, 56, 210, - 150, 164, 125, 182, 118, 252, 107, 226, 156, 116, 4, 241, 69, 157, - 112, 89, 100, 113, 135, 32, 134, 91, 207, 101, 230, 45, 168, 2, 27, - 96, 37, 173, 174, 176, 185, 246, 28, 70, 97, 105, 52, 64, 126, 15, - 85, 71, 163, 35, 221, 81, 175, 58, 195, 92, 249, 206, 186, 197, - 234, 38, 44, 83, 13, 110, 133, 40, 132, 9, 211, 223, 205, 244, 65, - 129, 77, 82, 106, 220, 55, 200, 108, 193, 171, 250, 36, 225, 123, - 8, 12, 189, 177, 74, 120, 136, 149, 139, 227, 99, 232, 109, 233, - 203, 213, 254, 59, 0, 29, 57, 242, 239, 183, 14, 102, 88, 208, 228, - 166, 119, 114, 248, 235, 117, 75, 10, 49, 68, 80, 180, 143, 237, - 31, 26, 219, 153, 141, 51, 159, 17, 131, 20 - }; - - while (len) { - word32 L = (MD2_PAD_SIZE - md2->count) < len ? - (MD2_PAD_SIZE - md2->count) : len; - XMEMCPY(md2->buffer + md2->count, data, L); - md2->count += L; - data += L; - len -= L; - - if (md2->count == MD2_PAD_SIZE) { - int i; - byte t; - - md2->count = 0; - XMEMCPY(md2->X + MD2_PAD_SIZE, md2->buffer, MD2_PAD_SIZE); - t = md2->C[15]; - - for(i = 0; i < MD2_PAD_SIZE; i++) { - md2->X[32 + i] = md2->X[MD2_PAD_SIZE + i] ^ md2->X[i]; - t = md2->C[i] ^= S[md2->buffer[i] ^ t]; - } - - t=0; - for(i = 0; i < 18; i++) { - int j; - for(j = 0; j < MD2_X_SIZE; j += 8) { - t = md2->X[j+0] ^= S[t]; - t = md2->X[j+1] ^= S[t]; - t = md2->X[j+2] ^= S[t]; - t = md2->X[j+3] ^= S[t]; - t = md2->X[j+4] ^= S[t]; - t = md2->X[j+5] ^= S[t]; - t = md2->X[j+6] ^= S[t]; - t = md2->X[j+7] ^= S[t]; - } - t = (t + i) & 0xFF; - } - } - } -} - - -void wc_Md2Final(Md2* md2, byte* hash) -{ - byte padding[MD2_BLOCK_SIZE]; - word32 padLen = MD2_PAD_SIZE - md2->count; - word32 i; - - for (i = 0; i < padLen; i++) - padding[i] = (byte)padLen; - - wc_Md2Update(md2, padding, padLen); - wc_Md2Update(md2, md2->C, MD2_BLOCK_SIZE); - - XMEMCPY(hash, md2->X, MD2_DIGEST_SIZE); - - wc_InitMd2(md2); -} - - -int wc_Md2Hash(const byte* data, word32 len, byte* hash) -{ -#ifdef WOLFSSL_SMALL_STACK - Md2* md2; -#else - Md2 md2[1]; -#endif - -#ifdef WOLFSSL_SMALL_STACK - md2 = (Md2*)XMALLOC(sizeof(Md2), NULL, DYNAMIC_TYPE_TMP_BUFFER); - if (md2 == NULL) - return MEMORY_E; -#endif - - wc_InitMd2(md2); - wc_Md2Update(md2, data, len); - wc_Md2Final(md2, hash); - -#ifdef WOLFSSL_SMALL_STACK - XFREE(md2, NULL, DYNAMIC_TYPE_TMP_BUFFER); -#endif - - return 0; -} - - -#endif /* WOLFSSL_MD2 */ - -