Diff: wolfcrypt/src/md4.c

Revision:

17:ff9d1e86ad5f

Parent:

16:048e5e270a58

diff -r 048e5e270a58 -r ff9d1e86ad5f wolfcrypt/src/md4.c
--- a/wolfcrypt/src/md4.c	Tue Nov 19 14:32:16 2019 +0000
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,212 +0,0 @@
-/* md4.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>
-
-#ifndef NO_MD4
-
-#include <wolfssl/wolfcrypt/md4.h>
-#ifdef NO_INLINE
-    #include <wolfssl/wolfcrypt/misc.h>
-#else
-    #define WOLFSSL_MISC_INCLUDED
-    #include <wolfcrypt/src/misc.c>
-#endif
-
-
-void wc_InitMd4(Md4* md4)
-{
-    md4->digest[0] = 0x67452301L;
-    md4->digest[1] = 0xefcdab89L;
-    md4->digest[2] = 0x98badcfeL;
-    md4->digest[3] = 0x10325476L;
-
-    md4->buffLen = 0;
-    md4->loLen   = 0;
-    md4->hiLen   = 0;
-}
-
-
-static void Transform(Md4* md4)
-{
-#define F(x, y, z) ((z) ^ ((x) & ((y) ^ (z))))
-#define G(x, y, z) (((x) & (y)) | ((x) & (z)) | ((y) & (z)))
-#define H(x, y, z) ((x) ^ (y) ^ (z))
-
-    /* Copy context->state[] to working vars  */
-    word32 A = md4->digest[0];
-    word32 B = md4->digest[1];
-    word32 C = md4->digest[2];
-    word32 D = md4->digest[3];
-
-#define function(a,b,c,d,k,s) a=rotlFixed(a+F(b,c,d)+md4->buffer[k],s);
-    function(A,B,C,D, 0, 3);
-    function(D,A,B,C, 1, 7);
-    function(C,D,A,B, 2,11);
-    function(B,C,D,A, 3,19);
-    function(A,B,C,D, 4, 3);
-    function(D,A,B,C, 5, 7);
-    function(C,D,A,B, 6,11);
-    function(B,C,D,A, 7,19);
-    function(A,B,C,D, 8, 3);
-    function(D,A,B,C, 9, 7);
-    function(C,D,A,B,10,11);
-    function(B,C,D,A,11,19);
-    function(A,B,C,D,12, 3);
-    function(D,A,B,C,13, 7);
-    function(C,D,A,B,14,11);
-    function(B,C,D,A,15,19);
-
-#undef function
-#define function(a,b,c,d,k,s) \
-    a=rotlFixed(a+G(b,c,d)+md4->buffer[k]+0x5a827999,s);
-
-    function(A,B,C,D, 0, 3);
-    function(D,A,B,C, 4, 5);
-    function(C,D,A,B, 8, 9);
-    function(B,C,D,A,12,13);
-    function(A,B,C,D, 1, 3);
-    function(D,A,B,C, 5, 5);
-    function(C,D,A,B, 9, 9);
-    function(B,C,D,A,13,13);
-    function(A,B,C,D, 2, 3);
-    function(D,A,B,C, 6, 5);
-    function(C,D,A,B,10, 9);
-    function(B,C,D,A,14,13);
-    function(A,B,C,D, 3, 3);
-    function(D,A,B,C, 7, 5);
-    function(C,D,A,B,11, 9);
-    function(B,C,D,A,15,13);
-
-#undef function
-#define function(a,b,c,d,k,s) \
-    a=rotlFixed(a+H(b,c,d)+md4->buffer[k]+0x6ed9eba1,s);
-
-    function(A,B,C,D, 0, 3);
-    function(D,A,B,C, 8, 9);
-    function(C,D,A,B, 4,11);
-    function(B,C,D,A,12,15);
-    function(A,B,C,D, 2, 3);
-    function(D,A,B,C,10, 9);
-    function(C,D,A,B, 6,11);
-    function(B,C,D,A,14,15);
-    function(A,B,C,D, 1, 3);
-    function(D,A,B,C, 9, 9);
-    function(C,D,A,B, 5,11);
-    function(B,C,D,A,13,15);
-    function(A,B,C,D, 3, 3);
-    function(D,A,B,C,11, 9);
-    function(C,D,A,B, 7,11);
-    function(B,C,D,A,15,15);
-
-    /* Add the working vars back into digest state[]  */
-    md4->digest[0] += A;
-    md4->digest[1] += B;
-    md4->digest[2] += C;
-    md4->digest[3] += D;
-}
-
-
-static WC_INLINE void AddLength(Md4* md4, word32 len)
-{
-    word32 tmp = md4->loLen;
-    if ( (md4->loLen += len) < tmp)
-        md4->hiLen++;                       /* carry low to high */
-}
-
-
-void wc_Md4Update(Md4* md4, const byte* data, word32 len)
-{
-    /* do block size increments */
-    byte* local = (byte*)md4->buffer;
-
-    while (len) {
-        word32 add = min(len, MD4_BLOCK_SIZE - md4->buffLen);
-        XMEMCPY(&local[md4->buffLen], data, add);
-
-        md4->buffLen += add;
-        data         += add;
-        len          -= add;
-
-        if (md4->buffLen == MD4_BLOCK_SIZE) {
-            #ifdef BIG_ENDIAN_ORDER
-                ByteReverseWords(md4->buffer, md4->buffer, MD4_BLOCK_SIZE);
-            #endif
-            Transform(md4);
-            AddLength(md4, MD4_BLOCK_SIZE);
-            md4->buffLen = 0;
-        }
-    }
-}
-
-
-void wc_Md4Final(Md4* md4, byte* hash)
-{
-    byte* local = (byte*)md4->buffer;
-
-    AddLength(md4, md4->buffLen);               /* before adding pads */
-
-    local[md4->buffLen++] = 0x80;  /* add 1 */
-
-    /* pad with zeros */
-    if (md4->buffLen > MD4_PAD_SIZE) {
-        XMEMSET(&local[md4->buffLen], 0, MD4_BLOCK_SIZE - md4->buffLen);
-        md4->buffLen += MD4_BLOCK_SIZE - md4->buffLen;
-
-        #ifdef BIG_ENDIAN_ORDER
-            ByteReverseWords(md4->buffer, md4->buffer, MD4_BLOCK_SIZE);
-        #endif
-        Transform(md4);
-        md4->buffLen = 0;
-    }
-    XMEMSET(&local[md4->buffLen], 0, MD4_PAD_SIZE - md4->buffLen);
-
-    /* put lengths in bits */
-    md4->hiLen = (md4->loLen >> (8*sizeof(md4->loLen) - 3)) +
-                 (md4->hiLen << 3);
-    md4->loLen = md4->loLen << 3;
-
-    /* store lengths */
-    #ifdef BIG_ENDIAN_ORDER
-        ByteReverseWords(md4->buffer, md4->buffer, MD4_BLOCK_SIZE);
-    #endif
-    /* ! length ordering dependent on digest endian type ! */
-    XMEMCPY(&local[MD4_PAD_SIZE], &md4->loLen, sizeof(word32));
-    XMEMCPY(&local[MD4_PAD_SIZE + sizeof(word32)], &md4->hiLen, sizeof(word32));
-
-    Transform(md4);
-    #ifdef BIG_ENDIAN_ORDER
-        ByteReverseWords(md4->digest, md4->digest, MD4_DIGEST_SIZE);
-    #endif
-    XMEMCPY(hash, md4->digest, MD4_DIGEST_SIZE);
-
-    wc_InitMd4(md4);  /* reset state */
-}
-
-
-#endif /* NO_MD4 */
-
-