fixing a bug in sha1-C and sha256-C (only C-Versions are affected) in setting the...

[avr-crypto-lib.git] / sha1.c

diff --git a/sha1.c b/sha1.c
index b2fc2837875cd10235149f767ebc2d4327445147..045af10a2e3098257c06220e910952dfbc36302d 100644 (file)
--- a/sha1.c
+++ b/sha1.c
@@ -170,13 +170,13 @@ void sha1_lastBlock(sha1_ctx_t *state, void* block, uint16_t length){
        memcpy (&(lb[0]), block, length/8);
        
        /* set the final one bit */
-       if (length & 0x3){ /* if we have single bits at the end */
+       if (length & 0x7){ /* if we have single bits at the end */
                lb[length/8] = ((uint8_t*)(block))[length/8];
        } else {
                lb[length/8] = 0;
        }
        lb[length/8] |= 0x80>>(length & 0x3);
-       length =(length >> 3) + 1; /* from now on length contains the number of BYTES in lb*/
+       length =(length >> 7) + 1; /* from now on length contains the number of BYTES in lb*/
        /* pad with zeros */
        if (length>64-8){ /* not enouth space for 64bit length value */
                memset((void*)(&(lb[length])), 0, 64-length);