mirror of
git://git.gnupg.org/gnupg.git
synced 2025-07-02 22:46:30 +02:00
See ChangeLog: Fri Feb 26 17:55:41 CET 1999 Werner Koch
This commit is contained in:
Werner Koch
parent
946916a53d
commit
694099b9af
23 changed files with 362 additions and 251 deletions
398
cipher/md5.c
398
cipher/md5.c
|
|
@ -1,5 +1,5 @@
|
|||
/* md5.c - MD5 Message-Digest Algorithm
|
||||
* Copyright (C) 1995, 1996, 1998 Free Software Foundation, Inc.
|
||||
* Copyright (C) 1995, 1996, 1998, 1999 Free Software Foundation, Inc.
|
||||
*
|
||||
* according to the definition of MD5 in RFC 1321 from April 1992.
|
||||
* NOTE: This is *not* the same file as the one from glibc.
|
||||
|
|
@ -19,7 +19,7 @@
|
|||
* Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
|
||||
*/
|
||||
/* Written by Ulrich Drepper <drepper@gnu.ai.mit.edu>, 1995. */
|
||||
/* modified for GnuPG by <werner.koch@guug.de> */
|
||||
/* heavily modified for GnuPG by <werner.koch@guug.de> */
|
||||
|
||||
/* Test values:
|
||||
* "" D4 1D 8C D9 8F 00 B2 04 E9 80 09 98 EC F8 42 7E
|
||||
|
|
@ -40,24 +40,12 @@
|
|||
|
||||
typedef struct {
|
||||
u32 A,B,C,D; /* chaining variables */
|
||||
u32 total[2];
|
||||
u32 buflen;
|
||||
char buffer[128];
|
||||
u32 nblocks;
|
||||
byte buf[64];
|
||||
int count;
|
||||
} MD5_CONTEXT;
|
||||
|
||||
|
||||
|
||||
#ifdef BIG_ENDIAN_HOST
|
||||
#define SWAP(n) \
|
||||
(((n) << 24) | (((n) & 0xff00) << 8) | (((n) >> 8) & 0xff00) | ((n) >> 24))
|
||||
#else
|
||||
#define SWAP(n) (n)
|
||||
#endif
|
||||
|
||||
/* This array contains the bytes used to pad the buffer to the next
|
||||
64-byte boundary. (RFC 1321, 3.1: Step 1) */
|
||||
static const unsigned char fillbuf[64] = { 0x80, 0 /* , 0, 0, ... */ };
|
||||
|
||||
static void
|
||||
md5_init( MD5_CONTEXT *ctx )
|
||||
{
|
||||
|
|
@ -66,8 +54,8 @@ md5_init( MD5_CONTEXT *ctx )
|
|||
ctx->C = 0x98badcfe;
|
||||
ctx->D = 0x10325476;
|
||||
|
||||
ctx->total[0] = ctx->total[1] = 0;
|
||||
ctx->buflen = 0;
|
||||
ctx->nblocks = 0;
|
||||
ctx->count = 0;
|
||||
}
|
||||
|
||||
|
||||
|
|
@ -87,157 +75,137 @@ md5_init( MD5_CONTEXT *ctx )
|
|||
* transform n*64 bytes
|
||||
*/
|
||||
static void
|
||||
transform( MD5_CONTEXT *ctx, const void *buffer, size_t len )
|
||||
/*transform( MD5_CONTEXT *ctx, const void *buffer, size_t len )*/
|
||||
transform( MD5_CONTEXT *ctx, byte *data )
|
||||
{
|
||||
u32 correct_words[16];
|
||||
const u32 *words = buffer;
|
||||
size_t nwords = len / sizeof(u32);
|
||||
const u32 *endp = words + nwords;
|
||||
u32 A = ctx->A;
|
||||
u32 B = ctx->B;
|
||||
u32 C = ctx->C;
|
||||
u32 D = ctx->D;
|
||||
u32 *cwp = correct_words;
|
||||
|
||||
/* First increment the byte count. RFC 1321 specifies the possible
|
||||
length of the file up to 2^64 bits. Here we only compute the
|
||||
number of bytes. Do a double word increment. */
|
||||
ctx->total[0] += len;
|
||||
if( ctx->total[0] < len )
|
||||
++ctx->total[1];
|
||||
#ifdef BIG_ENDIAN_HOST
|
||||
{ int i;
|
||||
byte *p2, *p1;
|
||||
for(i=0, p1=data, p2=(byte*)correct_words; i < 16; i++, p2 += 4 ) {
|
||||
p2[3] = *p1++;
|
||||
p2[2] = *p1++;
|
||||
p2[1] = *p1++;
|
||||
p2[0] = *p1++;
|
||||
}
|
||||
}
|
||||
#else
|
||||
memcpy( correct_words, data, 64 );
|
||||
#endif
|
||||
|
||||
|
||||
/* Process all bytes in the buffer with 64 bytes in each round of
|
||||
the loop. */
|
||||
while(words < endp) {
|
||||
u32 *cwp = correct_words;
|
||||
u32 A_save = A;
|
||||
u32 B_save = B;
|
||||
u32 C_save = C;
|
||||
u32 D_save = D;
|
||||
#define OP(a, b, c, d, s, T) \
|
||||
do \
|
||||
{ \
|
||||
a += FF (b, c, d) + (*cwp++) + T; \
|
||||
CYCLIC (a, s); \
|
||||
a += b; \
|
||||
} \
|
||||
while (0)
|
||||
|
||||
/* First round: using the given function, the context and a constant
|
||||
the next context is computed. Because the algorithm's processing
|
||||
unit is a 32-bit word, and it is determined to work on words in
|
||||
little endian byte order, we perhaps have to change the byte order
|
||||
before the computation. To reduce the work for the next steps
|
||||
we store the swapped words in the array CORRECT_WORDS. */
|
||||
|
||||
#define OP(a, b, c, d, s, T) \
|
||||
do \
|
||||
{ \
|
||||
a += FF (b, c, d) + (*cwp++ = SWAP (*words)) + T; \
|
||||
++words; \
|
||||
CYCLIC (a, s); \
|
||||
a += b; \
|
||||
} \
|
||||
while (0)
|
||||
|
||||
/* It is unfortunate that C does not provide an operator for
|
||||
cyclic rotation. Hope the C compiler is smart enough. */
|
||||
/* It is unfortunate that C does not provide an operator for
|
||||
cyclic rotation. Hope the C compiler is smart enough. */
|
||||
#define CYCLIC(w, s) (w = (w << s) | (w >> (32 - s)))
|
||||
|
||||
/* Before we start, one word about the strange constants.
|
||||
They are defined in RFC 1321 as
|
||||
/* Before we start, one word about the strange constants.
|
||||
They are defined in RFC 1321 as
|
||||
|
||||
T[i] = (int) (4294967296.0 * fabs (sin (i))), i=1..64
|
||||
*/
|
||||
T[i] = (int) (4294967296.0 * fabs (sin (i))), i=1..64
|
||||
*/
|
||||
|
||||
/* Round 1. */
|
||||
OP (A, B, C, D, 7, 0xd76aa478);
|
||||
OP (D, A, B, C, 12, 0xe8c7b756);
|
||||
OP (C, D, A, B, 17, 0x242070db);
|
||||
OP (B, C, D, A, 22, 0xc1bdceee);
|
||||
OP (A, B, C, D, 7, 0xf57c0faf);
|
||||
OP (D, A, B, C, 12, 0x4787c62a);
|
||||
OP (C, D, A, B, 17, 0xa8304613);
|
||||
OP (B, C, D, A, 22, 0xfd469501);
|
||||
OP (A, B, C, D, 7, 0x698098d8);
|
||||
OP (D, A, B, C, 12, 0x8b44f7af);
|
||||
OP (C, D, A, B, 17, 0xffff5bb1);
|
||||
OP (B, C, D, A, 22, 0x895cd7be);
|
||||
OP (A, B, C, D, 7, 0x6b901122);
|
||||
OP (D, A, B, C, 12, 0xfd987193);
|
||||
OP (C, D, A, B, 17, 0xa679438e);
|
||||
OP (B, C, D, A, 22, 0x49b40821);
|
||||
/* Round 1. */
|
||||
OP (A, B, C, D, 7, 0xd76aa478);
|
||||
OP (D, A, B, C, 12, 0xe8c7b756);
|
||||
OP (C, D, A, B, 17, 0x242070db);
|
||||
OP (B, C, D, A, 22, 0xc1bdceee);
|
||||
OP (A, B, C, D, 7, 0xf57c0faf);
|
||||
OP (D, A, B, C, 12, 0x4787c62a);
|
||||
OP (C, D, A, B, 17, 0xa8304613);
|
||||
OP (B, C, D, A, 22, 0xfd469501);
|
||||
OP (A, B, C, D, 7, 0x698098d8);
|
||||
OP (D, A, B, C, 12, 0x8b44f7af);
|
||||
OP (C, D, A, B, 17, 0xffff5bb1);
|
||||
OP (B, C, D, A, 22, 0x895cd7be);
|
||||
OP (A, B, C, D, 7, 0x6b901122);
|
||||
OP (D, A, B, C, 12, 0xfd987193);
|
||||
OP (C, D, A, B, 17, 0xa679438e);
|
||||
OP (B, C, D, A, 22, 0x49b40821);
|
||||
|
||||
/* For the second to fourth round we have the possibly swapped words
|
||||
in CORRECT_WORDS. Redefine the macro to take an additional first
|
||||
argument specifying the function to use. */
|
||||
#undef OP
|
||||
#define OP(f, a, b, c, d, k, s, T) \
|
||||
do \
|
||||
{ \
|
||||
a += f (b, c, d) + correct_words[k] + T; \
|
||||
CYCLIC (a, s); \
|
||||
a += b; \
|
||||
} \
|
||||
while (0)
|
||||
do \
|
||||
{ \
|
||||
a += f (b, c, d) + correct_words[k] + T; \
|
||||
CYCLIC (a, s); \
|
||||
a += b; \
|
||||
} \
|
||||
while (0)
|
||||
|
||||
/* Round 2. */
|
||||
OP (FG, A, B, C, D, 1, 5, 0xf61e2562);
|
||||
OP (FG, D, A, B, C, 6, 9, 0xc040b340);
|
||||
OP (FG, C, D, A, B, 11, 14, 0x265e5a51);
|
||||
OP (FG, B, C, D, A, 0, 20, 0xe9b6c7aa);
|
||||
OP (FG, A, B, C, D, 5, 5, 0xd62f105d);
|
||||
OP (FG, D, A, B, C, 10, 9, 0x02441453);
|
||||
OP (FG, C, D, A, B, 15, 14, 0xd8a1e681);
|
||||
OP (FG, B, C, D, A, 4, 20, 0xe7d3fbc8);
|
||||
OP (FG, A, B, C, D, 9, 5, 0x21e1cde6);
|
||||
OP (FG, D, A, B, C, 14, 9, 0xc33707d6);
|
||||
OP (FG, C, D, A, B, 3, 14, 0xf4d50d87);
|
||||
OP (FG, B, C, D, A, 8, 20, 0x455a14ed);
|
||||
OP (FG, A, B, C, D, 13, 5, 0xa9e3e905);
|
||||
OP (FG, D, A, B, C, 2, 9, 0xfcefa3f8);
|
||||
OP (FG, C, D, A, B, 7, 14, 0x676f02d9);
|
||||
OP (FG, B, C, D, A, 12, 20, 0x8d2a4c8a);
|
||||
/* Round 2. */
|
||||
OP (FG, A, B, C, D, 1, 5, 0xf61e2562);
|
||||
OP (FG, D, A, B, C, 6, 9, 0xc040b340);
|
||||
OP (FG, C, D, A, B, 11, 14, 0x265e5a51);
|
||||
OP (FG, B, C, D, A, 0, 20, 0xe9b6c7aa);
|
||||
OP (FG, A, B, C, D, 5, 5, 0xd62f105d);
|
||||
OP (FG, D, A, B, C, 10, 9, 0x02441453);
|
||||
OP (FG, C, D, A, B, 15, 14, 0xd8a1e681);
|
||||
OP (FG, B, C, D, A, 4, 20, 0xe7d3fbc8);
|
||||
OP (FG, A, B, C, D, 9, 5, 0x21e1cde6);
|
||||
OP (FG, D, A, B, C, 14, 9, 0xc33707d6);
|
||||
OP (FG, C, D, A, B, 3, 14, 0xf4d50d87);
|
||||
OP (FG, B, C, D, A, 8, 20, 0x455a14ed);
|
||||
OP (FG, A, B, C, D, 13, 5, 0xa9e3e905);
|
||||
OP (FG, D, A, B, C, 2, 9, 0xfcefa3f8);
|
||||
OP (FG, C, D, A, B, 7, 14, 0x676f02d9);
|
||||
OP (FG, B, C, D, A, 12, 20, 0x8d2a4c8a);
|
||||
|
||||
/* Round 3. */
|
||||
OP (FH, A, B, C, D, 5, 4, 0xfffa3942);
|
||||
OP (FH, D, A, B, C, 8, 11, 0x8771f681);
|
||||
OP (FH, C, D, A, B, 11, 16, 0x6d9d6122);
|
||||
OP (FH, B, C, D, A, 14, 23, 0xfde5380c);
|
||||
OP (FH, A, B, C, D, 1, 4, 0xa4beea44);
|
||||
OP (FH, D, A, B, C, 4, 11, 0x4bdecfa9);
|
||||
OP (FH, C, D, A, B, 7, 16, 0xf6bb4b60);
|
||||
OP (FH, B, C, D, A, 10, 23, 0xbebfbc70);
|
||||
OP (FH, A, B, C, D, 13, 4, 0x289b7ec6);
|
||||
OP (FH, D, A, B, C, 0, 11, 0xeaa127fa);
|
||||
OP (FH, C, D, A, B, 3, 16, 0xd4ef3085);
|
||||
OP (FH, B, C, D, A, 6, 23, 0x04881d05);
|
||||
OP (FH, A, B, C, D, 9, 4, 0xd9d4d039);
|
||||
OP (FH, D, A, B, C, 12, 11, 0xe6db99e5);
|
||||
OP (FH, C, D, A, B, 15, 16, 0x1fa27cf8);
|
||||
OP (FH, B, C, D, A, 2, 23, 0xc4ac5665);
|
||||
/* Round 3. */
|
||||
OP (FH, A, B, C, D, 5, 4, 0xfffa3942);
|
||||
OP (FH, D, A, B, C, 8, 11, 0x8771f681);
|
||||
OP (FH, C, D, A, B, 11, 16, 0x6d9d6122);
|
||||
OP (FH, B, C, D, A, 14, 23, 0xfde5380c);
|
||||
OP (FH, A, B, C, D, 1, 4, 0xa4beea44);
|
||||
OP (FH, D, A, B, C, 4, 11, 0x4bdecfa9);
|
||||
OP (FH, C, D, A, B, 7, 16, 0xf6bb4b60);
|
||||
OP (FH, B, C, D, A, 10, 23, 0xbebfbc70);
|
||||
OP (FH, A, B, C, D, 13, 4, 0x289b7ec6);
|
||||
OP (FH, D, A, B, C, 0, 11, 0xeaa127fa);
|
||||
OP (FH, C, D, A, B, 3, 16, 0xd4ef3085);
|
||||
OP (FH, B, C, D, A, 6, 23, 0x04881d05);
|
||||
OP (FH, A, B, C, D, 9, 4, 0xd9d4d039);
|
||||
OP (FH, D, A, B, C, 12, 11, 0xe6db99e5);
|
||||
OP (FH, C, D, A, B, 15, 16, 0x1fa27cf8);
|
||||
OP (FH, B, C, D, A, 2, 23, 0xc4ac5665);
|
||||
|
||||
/* Round 4. */
|
||||
OP (FI, A, B, C, D, 0, 6, 0xf4292244);
|
||||
OP (FI, D, A, B, C, 7, 10, 0x432aff97);
|
||||
OP (FI, C, D, A, B, 14, 15, 0xab9423a7);
|
||||
OP (FI, B, C, D, A, 5, 21, 0xfc93a039);
|
||||
OP (FI, A, B, C, D, 12, 6, 0x655b59c3);
|
||||
OP (FI, D, A, B, C, 3, 10, 0x8f0ccc92);
|
||||
OP (FI, C, D, A, B, 10, 15, 0xffeff47d);
|
||||
OP (FI, B, C, D, A, 1, 21, 0x85845dd1);
|
||||
OP (FI, A, B, C, D, 8, 6, 0x6fa87e4f);
|
||||
OP (FI, D, A, B, C, 15, 10, 0xfe2ce6e0);
|
||||
OP (FI, C, D, A, B, 6, 15, 0xa3014314);
|
||||
OP (FI, B, C, D, A, 13, 21, 0x4e0811a1);
|
||||
OP (FI, A, B, C, D, 4, 6, 0xf7537e82);
|
||||
OP (FI, D, A, B, C, 11, 10, 0xbd3af235);
|
||||
OP (FI, C, D, A, B, 2, 15, 0x2ad7d2bb);
|
||||
OP (FI, B, C, D, A, 9, 21, 0xeb86d391);
|
||||
/* Add the starting values of the context. */
|
||||
A += A_save;
|
||||
B += B_save;
|
||||
C += C_save;
|
||||
D += D_save;
|
||||
}
|
||||
/* Round 4. */
|
||||
OP (FI, A, B, C, D, 0, 6, 0xf4292244);
|
||||
OP (FI, D, A, B, C, 7, 10, 0x432aff97);
|
||||
OP (FI, C, D, A, B, 14, 15, 0xab9423a7);
|
||||
OP (FI, B, C, D, A, 5, 21, 0xfc93a039);
|
||||
OP (FI, A, B, C, D, 12, 6, 0x655b59c3);
|
||||
OP (FI, D, A, B, C, 3, 10, 0x8f0ccc92);
|
||||
OP (FI, C, D, A, B, 10, 15, 0xffeff47d);
|
||||
OP (FI, B, C, D, A, 1, 21, 0x85845dd1);
|
||||
OP (FI, A, B, C, D, 8, 6, 0x6fa87e4f);
|
||||
OP (FI, D, A, B, C, 15, 10, 0xfe2ce6e0);
|
||||
OP (FI, C, D, A, B, 6, 15, 0xa3014314);
|
||||
OP (FI, B, C, D, A, 13, 21, 0x4e0811a1);
|
||||
OP (FI, A, B, C, D, 4, 6, 0xf7537e82);
|
||||
OP (FI, D, A, B, C, 11, 10, 0xbd3af235);
|
||||
OP (FI, C, D, A, B, 2, 15, 0x2ad7d2bb);
|
||||
OP (FI, B, C, D, A, 9, 21, 0xeb86d391);
|
||||
|
||||
/* Put checksum in context given as argument. */
|
||||
ctx->A = A;
|
||||
ctx->B = B;
|
||||
ctx->C = C;
|
||||
ctx->D = D;
|
||||
ctx->A += A;
|
||||
ctx->B += B;
|
||||
ctx->C += C;
|
||||
ctx->D += D;
|
||||
}
|
||||
|
||||
|
||||
|
|
@ -247,46 +215,33 @@ transform( MD5_CONTEXT *ctx, const void *buffer, size_t len )
|
|||
* in the message whose digest is being computed.
|
||||
*/
|
||||
static void
|
||||
md5_write( MD5_CONTEXT *ctx, const void *buffer, size_t len)
|
||||
md5_write( MD5_CONTEXT *hd, byte *inbuf, size_t inlen)
|
||||
{
|
||||
/* When we already have some bits in our internal buffer concatenate
|
||||
both inputs first. */
|
||||
if (ctx->buflen != 0)
|
||||
{
|
||||
size_t left_over = ctx->buflen;
|
||||
size_t add = 128 - left_over > len ? len : 128 - left_over;
|
||||
if( hd->count == 64 ) { /* flush the buffer */
|
||||
transform( hd, hd->buf );
|
||||
hd->count = 0;
|
||||
hd->nblocks++;
|
||||
}
|
||||
if( !inbuf )
|
||||
return;
|
||||
if( hd->count ) {
|
||||
for( ; inlen && hd->count < 64; inlen-- )
|
||||
hd->buf[hd->count++] = *inbuf++;
|
||||
md5_write( hd, NULL, 0 );
|
||||
if( !inlen )
|
||||
return;
|
||||
}
|
||||
|
||||
memcpy (&ctx->buffer[left_over], buffer, add);
|
||||
ctx->buflen += add;
|
||||
while( inlen >= 64 ) {
|
||||
transform( hd, inbuf );
|
||||
hd->count = 0;
|
||||
hd->nblocks++;
|
||||
inlen -= 64;
|
||||
inbuf += 64;
|
||||
}
|
||||
for( ; inlen && hd->count < 64; inlen-- )
|
||||
hd->buf[hd->count++] = *inbuf++;
|
||||
|
||||
if (left_over + add > 64)
|
||||
{
|
||||
transform(ctx, ctx->buffer, (left_over + add) & ~63);
|
||||
/* The regions in the following copy operation cannot overlap. */
|
||||
memcpy (ctx->buffer, &ctx->buffer[(left_over + add) & ~63],
|
||||
(left_over + add) & 63);
|
||||
ctx->buflen = (left_over + add) & 63;
|
||||
}
|
||||
|
||||
buffer = (const char *) buffer + add;
|
||||
len -= add;
|
||||
/* FIXME: misalignment occurs ... tsssss */
|
||||
}
|
||||
|
||||
/* Process available complete blocks. */
|
||||
if (len > 64)
|
||||
{
|
||||
transform( ctx, buffer, len & ~63);
|
||||
buffer = (const char *) buffer + (len & ~63);
|
||||
len &= 63;
|
||||
}
|
||||
|
||||
/* Move remaining bytes in internal buffer. */
|
||||
if (len > 0)
|
||||
{
|
||||
memcpy (ctx->buffer, buffer, len);
|
||||
ctx->buflen = len;
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
|
|
@ -298,39 +253,68 @@ md5_write( MD5_CONTEXT *ctx, const void *buffer, size_t len)
|
|||
*/
|
||||
|
||||
static void
|
||||
md5_final( MD5_CONTEXT *ctx )
|
||||
md5_final( MD5_CONTEXT *hd )
|
||||
{
|
||||
/* Take yet unprocessed bytes into account. */
|
||||
u32 bytes = ctx->buflen;
|
||||
size_t pad;
|
||||
u32 t, msb, lsb;
|
||||
byte *p;
|
||||
|
||||
/* Now count remaining bytes. */
|
||||
ctx->total[0] += bytes;
|
||||
if( ctx->total[0] < bytes )
|
||||
++ctx->total[1];
|
||||
md5_write(hd, NULL, 0); /* flush */;
|
||||
|
||||
pad = bytes >= 56 ? 64 + 56 - bytes : 56 - bytes;
|
||||
memcpy (&ctx->buffer[bytes], fillbuf, pad);
|
||||
msb = 0;
|
||||
t = hd->nblocks;
|
||||
if( (lsb = t << 6) < t ) /* multiply by 64 to make a byte count */
|
||||
msb++;
|
||||
msb += t >> 26;
|
||||
t = lsb;
|
||||
if( (lsb = t + hd->count) < t ) /* add the count */
|
||||
msb++;
|
||||
t = lsb;
|
||||
if( (lsb = t << 3) < t ) /* multiply by 8 to make a bit count */
|
||||
msb++;
|
||||
msb += t >> 29;
|
||||
|
||||
/* Put the 64-bit file length in *bits* at the end of the buffer. */
|
||||
*(u32 *) &ctx->buffer[bytes + pad] = SWAP (ctx->total[0] << 3);
|
||||
*(u32 *) &ctx->buffer[bytes + pad + 4] = SWAP ((ctx->total[1] << 3) |
|
||||
(ctx->total[0] >> 29));
|
||||
if( hd->count < 56 ) { /* enough room */
|
||||
hd->buf[hd->count++] = 0x80; /* pad */
|
||||
while( hd->count < 56 )
|
||||
hd->buf[hd->count++] = 0; /* pad */
|
||||
}
|
||||
else { /* need one extra block */
|
||||
hd->buf[hd->count++] = 0x80; /* pad character */
|
||||
while( hd->count < 64 )
|
||||
hd->buf[hd->count++] = 0;
|
||||
md5_write(hd, NULL, 0); /* flush */;
|
||||
memset(hd->buf, 0, 56 ); /* fill next block with zeroes */
|
||||
}
|
||||
/* append the 64 bit count */
|
||||
hd->buf[56] = lsb ;
|
||||
hd->buf[57] = lsb >> 8;
|
||||
hd->buf[58] = lsb >> 16;
|
||||
hd->buf[59] = lsb >> 24;
|
||||
hd->buf[60] = msb ;
|
||||
hd->buf[61] = msb >> 8;
|
||||
hd->buf[62] = msb >> 16;
|
||||
hd->buf[63] = msb >> 24;
|
||||
transform( hd, hd->buf );
|
||||
|
||||
/* Process last bytes. */
|
||||
transform( ctx, ctx->buffer, bytes + pad + 8);
|
||||
p = hd->buf;
|
||||
#ifdef BIG_ENDIAN_HOST
|
||||
#define X(a) do { *p++ = hd->##a ; *p++ = hd->##a >> 8; \
|
||||
*p++ = hd->##a >> 16; *p++ = hd->##a >> 24; } while(0)
|
||||
#else /* little endian */
|
||||
#define X(a) do { *(u32*)p = hd->##a ; p += 4; } while(0)
|
||||
#endif
|
||||
X(A);
|
||||
X(B);
|
||||
X(C);
|
||||
X(D);
|
||||
#undef X
|
||||
|
||||
/* Store the result in buffer */
|
||||
((u32 *)ctx->buffer)[0] = SWAP (ctx->A);
|
||||
((u32 *)ctx->buffer)[1] = SWAP (ctx->B);
|
||||
((u32 *)ctx->buffer)[2] = SWAP (ctx->C);
|
||||
((u32 *)ctx->buffer)[3] = SWAP (ctx->D);
|
||||
}
|
||||
|
||||
static byte *
|
||||
md5_read( MD5_CONTEXT *hd )
|
||||
{
|
||||
return hd->buffer;
|
||||
return hd->buf;
|
||||
}
|
||||
|
||||
/****************
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue