bool CScriptCompressor::IsToPubKey(CPubKey &pubkey) const {
if (script.size() == 35 && script[0] == 33 && script[34] == OP_CHECKSIG &&
(script[1] == 0x02 || script[1] == 0x03)) {
pubkey.Set(&script[1], &script[34]);
return true;
}
if (script.size() == 67 && script[0] == 65 && script[66] == OP_CHECKSIG &&
script[1] == 0x04) {
pubkey.Set(&script[1], &script[66]);
// if not fully valid, a case that would not be compressible
return pubkey.IsFullyValid();
}
return false;
}
void CECKey::GetPubKey(CPubKey &pubkey, bool fCompressed) {
EC_KEY_set_conv_form(pkey, fCompressed ? POINT_CONVERSION_COMPRESSED : POINT_CONVERSION_UNCOMPRESSED);
int nSize = i2o_ECPublicKey(pkey, NULL);
assert(nSize);
assert(nSize <= 65);
unsigned char c[65];
unsigned char *pbegin = c;
int nSize2 = i2o_ECPublicKey(pkey, &pbegin);
assert(nSize == nSize2);
pubkey.Set(&c[0], &c[nSize]);
}
