bool MultisigDialog::createRedeemScript(int m, vector<string> vKeys, CScript& redeemRet, string& errorRet)
{
try{
int n = vKeys.size();
//gather pub keys
if (n < 1)
throw runtime_error("a Multisignature address must require at least one key to redeem");
if (n < m)
throw runtime_error(
strprintf("not enough keys supplied "
"(got %d keys, but need at least %d to redeem)",
m, n));
if (n > 15)
throw runtime_error("Number of addresses involved in the Multisignature address creation > 15\nReduce the number");
vector<CPubKey> pubkeys;
pubkeys.resize(n);
int i = 0;
for(vector<string>::iterator it = vKeys.begin(); it != vKeys.end(); ++it) {
string keyString = *it;
#ifdef ENABLE_WALLET
// Case 1: PIVX address and we have full public key:
CBitcoinAddress address(keyString);
if (pwalletMain && address.IsValid()) {
CKeyID keyID;
if (!address.GetKeyID(keyID)) {
throw runtime_error(
strprintf("%s does not refer to a key", keyString));
}
CPubKey vchPubKey;
if (!pwalletMain->GetPubKey(keyID, vchPubKey))
throw runtime_error(
strprintf("no full public key for address %s", keyString));
if (!vchPubKey.IsFullyValid()){
string sKey = keyString.empty()?"(empty)":keyString;
throw runtime_error(" Invalid public key: " + sKey );
}
pubkeys[i++] = vchPubKey;
}
//case 2: hex pub key
else
#endif
if (IsHex(keyString)) {
CPubKey vchPubKey(ParseHex(keyString));
if (!vchPubKey.IsFullyValid()){
throw runtime_error(" Invalid public key: " + keyString);
}
pubkeys[i++] = vchPubKey;
} else {
throw runtime_error(" Invalid public key: " + keyString);
}
}
//populate redeem script
//OP_N for required signatures
redeemRet << redeemRet.EncodeOP_N(m);
//public keys
for(CPubKey& key : pubkeys){
vector<unsigned char> vKey= ToByteVector(key);
redeemRet << vKey;
}
//OP_N for total pubkeys
redeemRet << redeemRet.EncodeOP_N(pubkeys.size());
redeemRet << OP_CHECKMULTISIG;
return true;
}catch(const runtime_error& e){
errorRet = string(e.what());
return false;
}
}
