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small cleanup

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This commit is contained in:
Pavol Rusnak 2013-10-01 18:08:33 +02:00
parent e19f7cd2e5
commit 1691d5cc8c
1 changed files with 2 additions and 3 deletions
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5
ecdsa.c
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@ -326,7 +326,7 @@ void ecdsa_get_address(const uint8_t *pub_key, char version, char *addr)
for (i = 0; i < l / 2; i++) { for (i = 0; i < l / 2; i++) {
s = addr[i]; s = addr[i];
addr[i] = addr[l - 1 - i]; addr[i] = addr[l - 1 - i];
addr[l - 1 - i] = s;; addr[l - 1 - i] = s;
} }
} }
@ -343,7 +343,6 @@ int ecdsa_verify(const uint8_t *pub_key, const uint8_t *sig, const uint8_t *msg,
uint8_t hash[32]; uint8_t hash[32];
curve_point pub, res; curve_point pub, res;
bignum256 r, s, z; bignum256 r, s, z;
int res_is_zero = 0;
// compute hash function of message // compute hash function of message
SHA256_Raw(msg, msg_len, hash); SHA256_Raw(msg, msg_len, hash);
// if double hash is required uncomment the following line: // if double hash is required uncomment the following line:
@ -386,7 +385,7 @@ int ecdsa_verify(const uint8_t *pub_key, const uint8_t *sig, const uint8_t *msg,
if (bn_is_zero(&z)) { if (bn_is_zero(&z)) {
// our message hashes to zero // our message hashes to zero
// I don't expect this to happen any time soon // I don't expect this to happen any time soon
res_is_zero = 1; return 3;
} else { } else {
scalar_multiply(&z, &res); scalar_multiply(&z, &res);
} }