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v3.17.1

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Jay D Dee
2021-07-26 15:01:37 -04:00
parent 92b3733925
commit 9b905fccc8
33 changed files with 889 additions and 565 deletions
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50
algo/sha/hmac-sha256-hash.c
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@@ -39,17 +39,10 @@
void
SHA256_Buf( const void * in, size_t len, uint8_t digest[32] )
{
#if defined(HMAC_SPH_SHA)
sph_sha256_context ctx;
sph_sha256_init( &ctx );
sph_sha256( &ctx, in, len );
sph_sha256_close( &ctx, digest );
#else
SHA256_CTX ctx;
SHA256_Init( &ctx );
SHA256_Update( &ctx, in, len );
SHA256_Final( digest, &ctx );
#endif
}
/**
@@ -79,51 +72,29 @@ HMAC_SHA256_Init( HMAC_SHA256_CTX *ctx, const void *_K, size_t Klen )
/* If Klen > 64, the key is really SHA256(K). */
if ( Klen > 64 )
{
#if defined(HMAC_SPH_SHA)
sph_sha256_init( &ctx->ictx );
sph_sha256( &ctx->ictx, K, Klen );
sph_sha256_close( &ctx->ictx, khash );
#else
SHA256_Init( &ctx->ictx );
SHA256_Update( &ctx->ictx, K, Klen );
SHA256_Final( khash, &ctx->ictx );
#endif
K = khash;
Klen = 32;
K = khash;
Klen = 32;
}
/* Inner SHA256 operation is SHA256(K xor [block of 0x36] || data). */
#if defined(HMAC_SPH_SHA)
sph_sha256_init( &ctx->ictx );
#else
SHA256_Init( &ctx->ictx );
#endif
for ( i = 0; i < Klen; i++ ) pad[i] = K[i] ^ 0x36;
memset( pad + Klen, 0x36, 64 - Klen );
#if defined(HMAC_SPH_SHA)
sph_sha256( &ctx->ictx, pad, 64 );
#else
SHA256_Update( &ctx->ictx, pad, 64 );
#endif
/* Outer SHA256 operation is SHA256(K xor [block of 0x5c] || hash). */
#if defined(HMAC_SPH_SHA)
sph_sha256_init( &ctx->octx );
#else
SHA256_Init( &ctx->octx );
#endif
for ( i = 0; i < Klen; i++ ) pad[i] = K[i] ^ 0x5c;
memset( pad + Klen, 0x5c, 64 - Klen );
#if defined(HMAC_SPH_SHA)
sph_sha256( &ctx->octx, pad, 64 );
#else
SHA256_Update( &ctx->octx, pad, 64 );
#endif
}
/* Add bytes to the HMAC-SHA256 operation. */
@@ -131,11 +102,7 @@ void
HMAC_SHA256_Update( HMAC_SHA256_CTX *ctx, const void *in, size_t len )
{
/* Feed data to the inner SHA256 operation. */
#if defined(HMAC_SPH_SHA)
sph_sha256( &ctx->ictx, in, len );
#else
SHA256_Update( &ctx->ictx, in, len );
#endif
}
/* Finish an HMAC-SHA256 operation. */
@@ -144,20 +111,9 @@ HMAC_SHA256_Final( unsigned char digest[32], HMAC_SHA256_CTX *ctx )
{
unsigned char ihash[32];
#if defined(HMAC_SPH_SHA)
sph_sha256_close( &ctx->ictx, ihash );
sph_sha256( &ctx->octx, ihash, 32 );
sph_sha256_close( &ctx->octx, digest );
#else
/* Finish the inner SHA256 operation. */
SHA256_Final( ihash, &ctx->ictx );
/* Feed the inner hash to the outer SHA256 operation. */
SHA256_Update( &ctx->octx, ihash, 32 );
/* Finish the outer SHA256 operation. */
SHA256_Final( digest, &ctx->octx );
#endif
}
/**