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Merge pull request #8

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ba8fc0e Check signature nonces for validity (William Swanson)
This commit is contained in:
Pieter Wuille 2014-05-08 20:08:52 +02:00
commit 78fb796997
No known key found for this signature in database
GPG Key ID: 8F653255C87992E0
1 changed files with 10 additions and 2 deletions
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12
src/secp256k1.c
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@ -56,9 +56,13 @@ int secp256k1_ecdsa_sign(const unsigned char *message, int messagelen, unsigned
secp256k1_num_set_bin(&sec, seckey, 32);
secp256k1_num_set_bin(&non, nonce, 32);
secp256k1_num_set_bin(&msg, message, messagelen);
int ret = !secp256k1_num_is_zero(&non) &&
(secp256k1_num_cmp(&non, &secp256k1_ge_consts->order) < 0);
secp256k1_ecdsa_sig_t sig;
secp256k1_ecdsa_sig_init(&sig);
int ret = secp256k1_ecdsa_sig_sign(&sig, &sec, &msg, &non, NULL);
if (ret) {
ret = secp256k1_ecdsa_sig_sign(&sig, &sec, &msg, &non, NULL);
}
if (ret) {
secp256k1_ecdsa_sig_serialize(signature, signaturelen, &sig);
}
@ -77,9 +81,13 @@ int secp256k1_ecdsa_sign_compact(const unsigned char *message, int messagelen, u
secp256k1_num_set_bin(&sec, seckey, 32);
secp256k1_num_set_bin(&non, nonce, 32);
secp256k1_num_set_bin(&msg, message, messagelen);
int ret = !secp256k1_num_is_zero(&non) &&
(secp256k1_num_cmp(&non, &secp256k1_ge_consts->order) < 0);
secp256k1_ecdsa_sig_t sig;
secp256k1_ecdsa_sig_init(&sig);
int ret = secp256k1_ecdsa_sig_sign(&sig, &sec, &msg, &non, recid);
if (ret) {
ret = secp256k1_ecdsa_sig_sign(&sig, &sec, &msg, &non, recid);
}
if (ret) {
secp256k1_num_get_bin(sig64, 32, &sig.r);
secp256k1_num_get_bin(sig64 + 32, 32, &sig.s);