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tests/tinycrypt: Fix dead code issue (2nd)

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This commit fixes the dead code issue reported by Coverity.

Coverity-CID: 151977

Change-Id: Iaa31c032456f48e1af1d1c9d722f051ac5519ccf
Signed-off-by: Flavio Santes <flavio.santes@intel.com>
This commit is contained in:
Flavio Santes 2016-11-16 16:26:10 -06:00 • committed by Anas Nashif
commit 0f231c70d3
1 changed files with 6 additions and 5 deletions
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11
tests/crypto/test_ecc_dsa/src/test_ecc_dsa.c
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@ -334,6 +334,8 @@ int verify_vectors(TCSha256State_t hash, char **msg_vec, char **qx_vec,
int rc = TC_FAIL;
for (int i = 0; i < tests; i++) {
int hash_dwords;
str_to_scalar(pub.x, NUM_ECC_DIGITS, qx_vec[i]);
str_to_scalar(pub.y, NUM_ECC_DIGITS, qy_vec[i]);
str_to_scalar(r, NUM_ECC_DIGITS, r_vec[i]);
@ -358,11 +360,10 @@ int verify_vectors(TCSha256State_t hash, char **msg_vec, char **qx_vec,
/* if digest larger than ECC scalar, drop the end
* if digest smaller than ECC scalar, zero-pad front
*/
int hash_dwords = TC_SHA256_DIGEST_SIZE / 4;
if (hash_dwords > NUM_ECC_DIGITS) {
hash_dwords = NUM_ECC_DIGITS;
}
/* Note: here it is assumed that:
* NUM_ECC_DIGITS * 4 == TC_SHA256_DIGEST_SIZE
*/
hash_dwords = TC_SHA256_DIGEST_SIZE / 4;
memset(dig32, 0, NUM_ECC_BYTES - 4 * hash_dwords);
ecc_bytes2native(dig32 + (NUM_ECC_DIGITS - hash_dwords),