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some more internall structure changes

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This commit is contained in:
Werner Koch 1998-06-16 15:13:28 +00:00
parent 6e1ca6b80f
commit e6ac5acbbf
39 changed files with 814 additions and 400 deletions
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48
cipher/sha1.c
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@ -41,6 +41,12 @@
#include "sha1.h"
typedef struct {
u32 h0,h1,h2,h3,h4;
u32 nblocks;
byte buf[64];
int count;
} SHA1_CONTEXT;
#if defined(__GNUC__) && defined(__i386__)
@ -216,7 +222,7 @@ transform( SHA1_CONTEXT *hd, byte *data )
/* Update the message digest with the contents
* of INBUF with length INLEN.
*/
void
static void
sha1_write( SHA1_CONTEXT *hd, byte *inbuf, size_t inlen)
{
if( hd->count == 64 ) { /* flush the buffer */
@ -253,7 +259,7 @@ sha1_write( SHA1_CONTEXT *hd, byte *inbuf, size_t inlen)
* Returns: 20 bytes representing the digest.
*/
void
static void
sha1_final(SHA1_CONTEXT *hd)
{
u32 t, msb, lsb;
@ -313,4 +319,42 @@ sha1_final(SHA1_CONTEXT *hd)
}
static byte *
sha1_read( SHA1_CONTEXT *hd )
{
return hd->buf;
}
/****************
* Return some information about the algorithm. We need algo here to
* distinguish different flavors of the algorithm.
* Returns: A pointer to string describing the algorithm or NULL if
* the ALGO is invalid.
*/
const char *
sha1_get_info( int algo, size_t *contextsize,
byte **r_asnoid, int *r_asnlen, int *r_mdlen,
void (**r_init)( void *c ),
void (**r_write)( void *c, byte *buf, size_t nbytes ),
void (**r_final)( void *c ),
byte *(**r_read)( void *c )
)
{
static byte asn[15] = /* Object ID is 1.3.14.3.2.26 */
{ 0x30, 0x21, 0x30, 0x09, 0x06, 0x05, 0x2b, 0x0e, 0x03,
0x02, 0x1a, 0x05, 0x00, 0x04, 0x14 };
if( algo != 2 )
return NULL;
*contextsize = sizeof(SHA1_CONTEXT);
*r_asnoid = asn;
*r_asnlen = DIM(asn);
*r_mdlen = 20;
*r_init = (void (*)(void *))sha1_init;
*r_write = (void (*)(void *, byte*, size_t))sha1_write;
*r_final = (void (*)(void *))sha1_final;
*r_read = (byte *(*)(void *))sha1_read;
return "SHA1";
}