highperfocused/bitcoin
1
0
Fork 0
mirror of https://github.com/bitcoin/bitcoin.git synced 2025-11-10 22:18:54 +01:00
Code Issues Packages Projects Releases Wiki Activity

Add automatic script test generation, and actual checksig tests

Browse Source
This commit is contained in:
Pieter Wuille
2014-09-20 03:13:04 +02:00
parent 64cfaf891f
commit 8138cbea3c
8 changed files with 413 additions and 49 deletions
Download Patch File Download Diff File Expand all files Collapse all files

8
src/key.cpp
View File

@@ -220,7 +220,7 @@ public:
return o2i_ECPublicKey(&pkey, &pbegin, pubkey.size()) != NULL;
}
bool Sign(const uint256 &hash, std::vector<unsigned char>& vchSig) {
bool Sign(const uint256 &hash, std::vector<unsigned char>& vchSig, bool lowS) {
vchSig.clear();
ECDSA_SIG *sig = ECDSA_do_sign((unsigned char*)&hash, sizeof(hash), pkey);
if (sig == NULL)
@@ -232,7 +232,7 @@ public:
BIGNUM *halforder = BN_CTX_get(ctx);
EC_GROUP_get_order(group, order, ctx);
BN_rshift1(halforder, order);
if (BN_cmp(sig->s, halforder) > 0) {
if (lowS && BN_cmp(sig->s, halforder) > 0) {
// enforce low S values, by negating the value (modulo the order) if above order/2.
BN_sub(sig->s, order, sig->s);
}
@@ -467,7 +467,7 @@ CPubKey CKey::GetPubKey() const {
return pubkey;
}
bool CKey::Sign(const uint256 &hash, std::vector<unsigned char>& vchSig) const {
bool CKey::Sign(const uint256 &hash, std::vector<unsigned char>& vchSig, bool lowS) const {
if (!fValid)
return false;
#ifdef USE_SECP256K1
@@ -484,7 +484,7 @@ bool CKey::Sign(const uint256 &hash, std::vector<unsigned char>& vchSig) const {
#else
CECKey key;
key.SetSecretBytes(vch);
return key.Sign(hash, vchSig);
return key.Sign(hash, vchSig, lowS);
#endif
}