/*
- * ccmd5_ltc.c
- * corecrypto
+ * md5.c
+ * Adapted for perf_index from ccmd5_ltc.c in corecrypto
*
* Created by Fabrice Gautier on 12/3/10.
* Copyright 2010,2011 Apple Inc. All rights reserved.
*
*/
+#include "md5.h"
+
#include <stdint.h>
#include <string.h>
#define CCMD5_BLOCK_SIZE 64
-#define F(x,y,z) (z ^ (x & (y ^ z)))
-#define G(x,y,z) (y ^ (z & (y ^ x)))
-#define H(x,y,z) (x^y^z)
-#define I(x,y,z) (y^(x|(~z)))
+#define F(x, y, z) (z ^ (x & (y ^ z)))
+#define G(x, y, z) (y ^ (z & (y ^ x)))
+#define H(x, y, z) (x^y^z)
+#define I(x, y, z) (y^(x|(~z)))
-#define CC_ROLc(X,s) (((X) << (s)) | ((X) >> (32 - (s))))
+#define CC_ROLc(X, s) (((X) << (s)) | ((X) >> (32 - (s))))
-#define FF(a,b,c,d,M,s,t) \
+#define FF(a, b, c, d, M, s, t) \
a = (a + F(b,c,d) + M + t); a = CC_ROLc(a, s) + b;
-#define GG(a,b,c,d,M,s,t) \
+#define GG(a, b, c, d, M, s, t) \
a = (a + G(b,c,d) + M + t); a = CC_ROLc(a, s) + b;
-#define HH(a,b,c,d,M,s,t) \
+#define HH(a, b, c, d, M, s, t) \
a = (a + H(b,c,d) + M + t); a = CC_ROLc(a, s) + b;
-#define II(a,b,c,d,M,s,t) \
+#define II(a, b, c, d, M, s, t) \
a = (a + I(b,c,d) + M + t); a = CC_ROLc(a, s) + b;
-static void md5_compress(uint32_t *state, unsigned long nblocks, const void *in)
+static void
+md5_compress(uint32_t *state, unsigned long nblocks, const void *in)
{
- uint32_t i, W[16], a, b, c, d;
- uint32_t *s = state;
- const unsigned char *buf = in;
-
- while(nblocks--) {
-
- /* copy the state into 512-bits into W[0..15] */
- for (i = 0; i < 16; i++) {
- W[i] = ((uint32_t*)buf)[i];
- }
-
- /* copy state */
- a = s[0];
- b = s[1];
- c = s[2];
- d = s[3];
-
- FF(a,b,c,d,W[0],7,0xd76aa478)
- FF(d,a,b,c,W[1],12,0xe8c7b756)
- FF(c,d,a,b,W[2],17,0x242070db)
- FF(b,c,d,a,W[3],22,0xc1bdceee)
- FF(a,b,c,d,W[4],7,0xf57c0faf)
- FF(d,a,b,c,W[5],12,0x4787c62a)
- FF(c,d,a,b,W[6],17,0xa8304613)
- FF(b,c,d,a,W[7],22,0xfd469501)
- FF(a,b,c,d,W[8],7,0x698098d8)
- FF(d,a,b,c,W[9],12,0x8b44f7af)
- FF(c,d,a,b,W[10],17,0xffff5bb1)
- FF(b,c,d,a,W[11],22,0x895cd7be)
- FF(a,b,c,d,W[12],7,0x6b901122)
- FF(d,a,b,c,W[13],12,0xfd987193)
- FF(c,d,a,b,W[14],17,0xa679438e)
- FF(b,c,d,a,W[15],22,0x49b40821)
- GG(a,b,c,d,W[1],5,0xf61e2562)
- GG(d,a,b,c,W[6],9,0xc040b340)
- GG(c,d,a,b,W[11],14,0x265e5a51)
- GG(b,c,d,a,W[0],20,0xe9b6c7aa)
- GG(a,b,c,d,W[5],5,0xd62f105d)
- GG(d,a,b,c,W[10],9,0x02441453)
- GG(c,d,a,b,W[15],14,0xd8a1e681)
- GG(b,c,d,a,W[4],20,0xe7d3fbc8)
- GG(a,b,c,d,W[9],5,0x21e1cde6)
- GG(d,a,b,c,W[14],9,0xc33707d6)
- GG(c,d,a,b,W[3],14,0xf4d50d87)
- GG(b,c,d,a,W[8],20,0x455a14ed)
- GG(a,b,c,d,W[13],5,0xa9e3e905)
- GG(d,a,b,c,W[2],9,0xfcefa3f8)
- GG(c,d,a,b,W[7],14,0x676f02d9)
- GG(b,c,d,a,W[12],20,0x8d2a4c8a)
- HH(a,b,c,d,W[5],4,0xfffa3942)
- HH(d,a,b,c,W[8],11,0x8771f681)
- HH(c,d,a,b,W[11],16,0x6d9d6122)
- HH(b,c,d,a,W[14],23,0xfde5380c)
- HH(a,b,c,d,W[1],4,0xa4beea44)
- HH(d,a,b,c,W[4],11,0x4bdecfa9)
- HH(c,d,a,b,W[7],16,0xf6bb4b60)
- HH(b,c,d,a,W[10],23,0xbebfbc70)
- HH(a,b,c,d,W[13],4,0x289b7ec6)
- HH(d,a,b,c,W[0],11,0xeaa127fa)
- HH(c,d,a,b,W[3],16,0xd4ef3085)
- HH(b,c,d,a,W[6],23,0x04881d05)
- HH(a,b,c,d,W[9],4,0xd9d4d039)
- HH(d,a,b,c,W[12],11,0xe6db99e5)
- HH(c,d,a,b,W[15],16,0x1fa27cf8)
- HH(b,c,d,a,W[2],23,0xc4ac5665)
- II(a,b,c,d,W[0],6,0xf4292244)
- II(d,a,b,c,W[7],10,0x432aff97)
- II(c,d,a,b,W[14],15,0xab9423a7)
- II(b,c,d,a,W[5],21,0xfc93a039)
- II(a,b,c,d,W[12],6,0x655b59c3)
- II(d,a,b,c,W[3],10,0x8f0ccc92)
- II(c,d,a,b,W[10],15,0xffeff47d)
- II(b,c,d,a,W[1],21,0x85845dd1)
- II(a,b,c,d,W[8],6,0x6fa87e4f)
- II(d,a,b,c,W[15],10,0xfe2ce6e0)
- II(c,d,a,b,W[6],15,0xa3014314)
- II(b,c,d,a,W[13],21,0x4e0811a1)
- II(a,b,c,d,W[4],6,0xf7537e82)
- II(d,a,b,c,W[11],10,0xbd3af235)
- II(c,d,a,b,W[2],15,0x2ad7d2bb)
- II(b,c,d,a,W[9],21,0xeb86d391)
-
- /* store state */
- s[0] += a;
- s[1] += b;
- s[2] += c;
- s[3] += d;
-
- buf+=CCMD5_BLOCK_SIZE;
- }
+ uint32_t i, W[16], a, b, c, d;
+ uint32_t *s = state;
+ const unsigned char *buf = in;
+
+ while (nblocks--) {
+ /* copy the state into 512-bits into W[0..15] */
+ for (i = 0; i < 16; i++) {
+ W[i] = ((uint32_t*)buf)[i];
+ }
+
+ /* copy state */
+ a = s[0];
+ b = s[1];
+ c = s[2];
+ d = s[3];
+
+ FF(a, b, c, d, W[0], 7, 0xd76aa478)
+ FF(d, a, b, c, W[1], 12, 0xe8c7b756)
+ FF(c, d, a, b, W[2], 17, 0x242070db)
+ FF(b, c, d, a, W[3], 22, 0xc1bdceee)
+ FF(a, b, c, d, W[4], 7, 0xf57c0faf)
+ FF(d, a, b, c, W[5], 12, 0x4787c62a)
+ FF(c, d, a, b, W[6], 17, 0xa8304613)
+ FF(b, c, d, a, W[7], 22, 0xfd469501)
+ FF(a, b, c, d, W[8], 7, 0x698098d8)
+ FF(d, a, b, c, W[9], 12, 0x8b44f7af)
+ FF(c, d, a, b, W[10], 17, 0xffff5bb1)
+ FF(b, c, d, a, W[11], 22, 0x895cd7be)
+ FF(a, b, c, d, W[12], 7, 0x6b901122)
+ FF(d, a, b, c, W[13], 12, 0xfd987193)
+ FF(c, d, a, b, W[14], 17, 0xa679438e)
+ FF(b, c, d, a, W[15], 22, 0x49b40821)
+ GG(a, b, c, d, W[1], 5, 0xf61e2562)
+ GG(d, a, b, c, W[6], 9, 0xc040b340)
+ GG(c, d, a, b, W[11], 14, 0x265e5a51)
+ GG(b, c, d, a, W[0], 20, 0xe9b6c7aa)
+ GG(a, b, c, d, W[5], 5, 0xd62f105d)
+ GG(d, a, b, c, W[10], 9, 0x02441453)
+ GG(c, d, a, b, W[15], 14, 0xd8a1e681)
+ GG(b, c, d, a, W[4], 20, 0xe7d3fbc8)
+ GG(a, b, c, d, W[9], 5, 0x21e1cde6)
+ GG(d, a, b, c, W[14], 9, 0xc33707d6)
+ GG(c, d, a, b, W[3], 14, 0xf4d50d87)
+ GG(b, c, d, a, W[8], 20, 0x455a14ed)
+ GG(a, b, c, d, W[13], 5, 0xa9e3e905)
+ GG(d, a, b, c, W[2], 9, 0xfcefa3f8)
+ GG(c, d, a, b, W[7], 14, 0x676f02d9)
+ GG(b, c, d, a, W[12], 20, 0x8d2a4c8a)
+ HH(a, b, c, d, W[5], 4, 0xfffa3942)
+ HH(d, a, b, c, W[8], 11, 0x8771f681)
+ HH(c, d, a, b, W[11], 16, 0x6d9d6122)
+ HH(b, c, d, a, W[14], 23, 0xfde5380c)
+ HH(a, b, c, d, W[1], 4, 0xa4beea44)
+ HH(d, a, b, c, W[4], 11, 0x4bdecfa9)
+ HH(c, d, a, b, W[7], 16, 0xf6bb4b60)
+ HH(b, c, d, a, W[10], 23, 0xbebfbc70)
+ HH(a, b, c, d, W[13], 4, 0x289b7ec6)
+ HH(d, a, b, c, W[0], 11, 0xeaa127fa)
+ HH(c, d, a, b, W[3], 16, 0xd4ef3085)
+ HH(b, c, d, a, W[6], 23, 0x04881d05)
+ HH(a, b, c, d, W[9], 4, 0xd9d4d039)
+ HH(d, a, b, c, W[12], 11, 0xe6db99e5)
+ HH(c, d, a, b, W[15], 16, 0x1fa27cf8)
+ HH(b, c, d, a, W[2], 23, 0xc4ac5665)
+ II(a, b, c, d, W[0], 6, 0xf4292244)
+ II(d, a, b, c, W[7], 10, 0x432aff97)
+ II(c, d, a, b, W[14], 15, 0xab9423a7)
+ II(b, c, d, a, W[5], 21, 0xfc93a039)
+ II(a, b, c, d, W[12], 6, 0x655b59c3)
+ II(d, a, b, c, W[3], 10, 0x8f0ccc92)
+ II(c, d, a, b, W[10], 15, 0xffeff47d)
+ II(b, c, d, a, W[1], 21, 0x85845dd1)
+ II(a, b, c, d, W[8], 6, 0x6fa87e4f)
+ II(d, a, b, c, W[15], 10, 0xfe2ce6e0)
+ II(c, d, a, b, W[6], 15, 0xa3014314)
+ II(b, c, d, a, W[13], 21, 0x4e0811a1)
+ II(a, b, c, d, W[4], 6, 0xf7537e82)
+ II(d, a, b, c, W[11], 10, 0xbd3af235)
+ II(c, d, a, b, W[2], 15, 0x2ad7d2bb)
+ II(b, c, d, a, W[9], 21, 0xeb86d391)
+
+ /* store state */
+ s[0] += a;
+ s[1] += b;
+ s[2] += c;
+ s[3] += d;
+
+ buf += CCMD5_BLOCK_SIZE;
+ }
}
-void md5_hash(uint8_t *message, uint64_t len, uint32_t *hash) {
+void
+md5_hash(uint8_t *message, uint64_t len, uint32_t *hash)
+{
hash[0] = 0x67452301;
hash[1] = 0xEFCDAB89;
hash[2] = 0x98BADCFE;
hash[3] = 0x10325476;
-
- md5_compress(hash, len/64, message);
-
+
+ md5_compress(hash, len / 64, message);
+
uint32_t blockbuff[16];
uint8_t *byteptr = (uint8_t*)blockbuff;
-
+
int left = len % 64;
- memcpy(byteptr, message + len-left, left);
-
+ memcpy(byteptr, message + len - left, left);
+
byteptr[left] = 0x80;
left++;
- if (64 - left >= 8)
+ if (64 - left >= 8) {
bzero(byteptr + left, 56 - left);
- else {
+ } else {
memset(byteptr + left, 0, 64 - left);
md5_compress(hash, 1, blockbuff);
bzero(blockbuff, 56);
projects / apple / xnu.git / blobdiff