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sha1: drop never used sha1_hmac 

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This commit is contained in:
Jean-Christophe PLAGNIOL-VILLARD 2011-10-08 16:41:57 +02:00 committed by Sascha Hauer
parent 05bd7afb3a
commit e08eae4173
1 changed files with 0 additions and 39 deletions
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39
crypto/sha1.c
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@ -291,45 +291,6 @@ static void sha1_finish (sha1_context * ctx, uint8_t output[20])
PUT_UINT32_BE (ctx->state[4], output, 16);
}
/*
* Output = HMAC-SHA-1( input buffer, hmac key )
*/
void sha1_hmac (uint8_t *key, uint32_t keylen,
uint8_t *input, uint32_t ilen, uint8_t output[20])
{
uint32_t i;
sha1_context ctx;
uint8_t k_ipad[64];
uint8_t k_opad[64];
uint8_t tmpbuf[20];
memset (k_ipad, 0x36, 64);
memset (k_opad, 0x5C, 64);
for (i = 0; i < keylen; i++) {
if (i >= 64)
break;
k_ipad[i] ^= key[i];
k_opad[i] ^= key[i];
}
sha1_starts (&ctx);
sha1_update (&ctx, k_ipad, 64);
sha1_update (&ctx, input, ilen);
sha1_finish (&ctx, tmpbuf);
sha1_starts (&ctx);
sha1_update (&ctx, k_opad, 64);
sha1_update (&ctx, tmpbuf, 20);
sha1_finish (&ctx, output);
memset (k_ipad, 0, 64);
memset (k_opad, 0, 64);
memset (tmpbuf, 0, 20);
memset (&ctx, 0, sizeof (sha1_context));
}
struct sha1 {
sha1_context context;
struct digest d;