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Fully separate the SHA-384 and SHA-512 code.

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This commit is contained in:
Dag-Erling Smørgrav 2014-07-11 00:12:33 +00:00 committed by des
parent c41c51d901
commit ca46c7c591
2 changed files with 22 additions and 67 deletions
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28
lib/digest/sha384.c
View file

@ -41,8 +41,6 @@
#include <cryb/sha384.h>
static int is384 = 1;
/*
* 64-bit integer manipulation macros (big endian)
*/
@ -132,21 +130,6 @@ void sha384_init( sha384_ctx *ctx )
ctx->total[0] = 0;
ctx->total[1] = 0;
if( is384 == 0 )
{
/* SHA-384 */
ctx->state[0] = UL64(0x6A09E667F3BCC908);
ctx->state[1] = UL64(0xBB67AE8584CAA73B);
ctx->state[2] = UL64(0x3C6EF372FE94F82B);
ctx->state[3] = UL64(0xA54FF53A5F1D36F1);
ctx->state[4] = UL64(0x510E527FADE682D1);
ctx->state[5] = UL64(0x9B05688C2B3E6C1F);
ctx->state[6] = UL64(0x1F83D9ABFB41BD6B);
ctx->state[7] = UL64(0x5BE0CD19137E2179);
}
else
{
/* SHA-384 */
ctx->state[0] = UL64(0xCBBB9D5DC1059ED8);
ctx->state[1] = UL64(0x629A292A367CD507);
ctx->state[2] = UL64(0x9159015A3070DD17);
@ -155,7 +138,6 @@ void sha384_init( sha384_ctx *ctx )
ctx->state[5] = UL64(0x8EB44A8768581511);
ctx->state[6] = UL64(0xDB0C2E0D64F98FA7);
ctx->state[7] = UL64(0x47B5481DBEFA4FA4);
}
}
static void sha384_process( sha384_ctx *ctx, const unsigned char *data )
@ -310,12 +292,6 @@ void sha384_final( sha384_ctx *ctx, unsigned char output[64] )
PUT_UINT64_BE( ctx->state[3], output, 24 );
PUT_UINT64_BE( ctx->state[4], output, 32 );
PUT_UINT64_BE( ctx->state[5], output, 40 );
if( is384 == 0 )
{
PUT_UINT64_BE( ctx->state[6], output, 48 );
PUT_UINT64_BE( ctx->state[7], output, 56 );
}
}
/*
@ -344,7 +320,7 @@ void sha384_hmac_init( sha384_ctx *ctx, unsigned char *key, int keylen )
if( keylen > 128 )
{
sha384_complete( key, keylen, sum );
keylen = ( is384 ) ? 48 : 64;
keylen = SHA384_DIGEST_LEN;
key = sum;
}
@ -380,7 +356,7 @@ void sha384_hmac_final( sha384_ctx *ctx, unsigned char output[64] )
int hlen;
unsigned char tmpbuf[64];
hlen = ( is384 == 0 ) ? 64 : 48;
hlen = SHA384_DIGEST_LEN;
sha384_final( ctx, tmpbuf );
sha384_init( ctx );

25
lib/digest/sha512.c
View file

@ -41,8 +41,6 @@
#include <cryb/sha512.h>
static int is384 = 0;
/*
* 64-bit integer manipulation macros (big endian)
*/
@ -132,9 +130,6 @@ void sha512_init( sha512_ctx *ctx )
ctx->total[0] = 0;
ctx->total[1] = 0;
if( is384 == 0 )
{
/* SHA-512 */
ctx->state[0] = UL64(0x6A09E667F3BCC908);
ctx->state[1] = UL64(0xBB67AE8584CAA73B);
ctx->state[2] = UL64(0x3C6EF372FE94F82B);
@ -143,19 +138,6 @@ void sha512_init( sha512_ctx *ctx )
ctx->state[5] = UL64(0x9B05688C2B3E6C1F);
ctx->state[6] = UL64(0x1F83D9ABFB41BD6B);
ctx->state[7] = UL64(0x5BE0CD19137E2179);
}
else
{
/* SHA-384 */
ctx->state[0] = UL64(0xCBBB9D5DC1059ED8);
ctx->state[1] = UL64(0x629A292A367CD507);
ctx->state[2] = UL64(0x9159015A3070DD17);
ctx->state[3] = UL64(0x152FECD8F70E5939);
ctx->state[4] = UL64(0x67332667FFC00B31);
ctx->state[5] = UL64(0x8EB44A8768581511);
ctx->state[6] = UL64(0xDB0C2E0D64F98FA7);
ctx->state[7] = UL64(0x47B5481DBEFA4FA4);
}
}
static void sha512_process( sha512_ctx *ctx, const unsigned char *data )
@ -311,11 +293,8 @@ void sha512_final( sha512_ctx *ctx, unsigned char output[64] )
PUT_UINT64_BE( ctx->state[4], output, 32 );
PUT_UINT64_BE( ctx->state[5], output, 40 );
if( is384 == 0 )
{
PUT_UINT64_BE( ctx->state[6], output, 48 );
PUT_UINT64_BE( ctx->state[7], output, 56 );
}
}
/*
@ -344,7 +323,7 @@ void sha512_hmac_init( sha512_ctx *ctx, unsigned char *key, int keylen )
if( keylen > 128 )
{
sha512_complete( key, keylen, sum );
keylen = ( is384 ) ? 48 : 64;
keylen = SHA512_DIGEST_LEN;
key = sum;
}
@ -380,7 +359,7 @@ void sha512_hmac_final( sha512_ctx *ctx, unsigned char output[64] )
int hlen;
unsigned char tmpbuf[64];
hlen = ( is384 == 0 ) ? 64 : 48;
hlen = SHA512_DIGEST_LEN;
sha512_final( ctx, tmpbuf );
sha512_init( ctx );