X-Git-Url: https://git.cryptolib.org/?a=blobdiff_plain;f=hmac-sha256.c;h=2ff2c01e58fb21789d35f9768a684fbf71032ece;hb=9f110487604e4c7778bda498017bfe6b52c69a1f;hp=3483f1224957cf5902244420328873c2d365d550;hpb=3c995d0a8faeb9d37927d48e20fc45d839e066ea;p=avr-crypto-lib.git

diff --git a/hmac-sha256.c b/hmac-sha256.c
index 3483f12..2ff2c01 100644
--- a/hmac-sha256.c
+++ b/hmac-sha256.c
@@ -79,6 +79,8 @@ void hmac_sha256(void* dest, void* key, uint16_t kl, void* msg, uint64_t ml){ /*
 	uint8_t i;
 	uint8_t buffer[SHA256_BLOCK_BITS/8];
 	
+	memset(buffer, 0, SHA256_BLOCK_BITS/8);
+	
 	/* if key is larger than a block we have to hash it*/
 	if (kl > SHA256_BLOCK_BITS){
 		sha256((void*)buffer, key, kl);
@@ -93,7 +95,7 @@ void hmac_sha256(void* dest, void* key, uint16_t kl, void* msg, uint64_t ml){ /*
 	sha256_nextBlock(&s, buffer);
 	while (ml >= SHA256_BLOCK_BITS){
 		sha256_nextBlock(&s, msg);
-		msg += SHA256_BLOCK_BITS/8;
+		msg = (uint8_t*)msg + SHA256_BLOCK_BITS/8;
 		ml -=  SHA256_BLOCK_BITS;
 	}
 	sha256_lastBlock(&s, msg, ml);
@@ -101,9 +103,9 @@ void hmac_sha256(void* dest, void* key, uint16_t kl, void* msg, uint64_t ml){ /*
 	for (i=0; i<SHA256_BLOCK_BITS/8; ++i){
 		buffer[i] ^= IPAD ^ OPAD;
 	}
-	sha265_ctx2hash(dest, &s); /* save inner hash temporary to dest */
+	sha256_ctx2hash(dest, &s); /* save inner hash temporary to dest */
 	sha256_init(&s);
 	sha256_nextBlock(&s, buffer);
 	sha256_lastBlock(&s, dest, SHA256_HASH_BITS);
-	sha265_ctx2hash(dest, &s);
+	sha256_ctx2hash(dest, &s);
 }