CPrivKey GetPrivKey() const
{
- unsigned int nSize = i2d_ECPrivateKey(pkey, NULL);
+ int nSize = i2d_ECPrivateKey(pkey, NULL);
if (!nSize)
throw key_error("CKey::GetPrivKey() : i2d_ECPrivateKey failed");
CPrivKey vchPrivKey(nSize, 0);
std::vector<unsigned char> GetPubKey() const
{
- unsigned int nSize = i2o_ECPublicKey(pkey, NULL);
+ int nSize = i2o_ECPublicKey(pkey, NULL);
if (!nSize)
throw key_error("CKey::GetPubKey() : i2o_ECPublicKey failed");
std::vector<unsigned char> vchPubKey(nSize, 0);
bool Sign(uint256 hash, std::vector<unsigned char>& vchSig)
{
- vchSig.clear();
- unsigned char pchSig[10000];
- unsigned int nSize = 0;
- if (!ECDSA_sign(0, (unsigned char*)&hash, sizeof(hash), pchSig, &nSize, pkey))
+ unsigned int nSize = ECDSA_size(pkey);
+ vchSig.resize(nSize); // Make sure it is big enough
+ if (!ECDSA_sign(0, (unsigned char*)&hash, sizeof(hash), &vchSig[0], &nSize, pkey))
+ {
+ vchSig.clear();
return false;
- vchSig.resize(nSize);
- memcpy(&vchSig[0], pchSig, nSize);
+ }
+ vchSig.resize(nSize); // Shrink to fit actual size
return true;
}