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Creating multisig m-of-n address using libbitcoin

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This commit is contained in:
Srdjan Obucina 2020-04-05 06:23:18 +02:00
parent 17bf51e963
commit 81db3a5c0d
3 changed files with 89 additions and 8 deletions
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2
libraries/plugins/peerplays_sidechain/CMakeLists.txt
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@ -16,7 +16,7 @@ endif()
unset(SUPPORT_MULTIPLE_SONS)
unset(SUPPORT_MULTIPLE_SONS CACHE)
target_link_libraries( peerplays_sidechain graphene_chain graphene_app fc zmq )
target_link_libraries( peerplays_sidechain graphene_chain graphene_app bitcoin fc zmq )
target_include_directories( peerplays_sidechain
PUBLIC "${CMAKE_CURRENT_SOURCE_DIR}/include" )

5
libraries/plugins/peerplays_sidechain/include/graphene/peerplays_sidechain/sidechain_net_handler_bitcoin.hpp
View file

@ -105,10 +105,15 @@ private:
fc::future<void> on_changed_objects_task;
std::string create_multisig_address(const std::vector<std::pair<std::string, uint16_t>> &son_pubkeys);
std::string create_transaction(const std::vector<btc_txout> &inputs, const fc::flat_map<std::string, double> outputs);
std::string sign_transaction(const sidechain_transaction_object &sto, bool &complete);
bool send_transaction(const sidechain_transaction_object &sto, std::string &sidechain_transaction);
std::string create_multisig_address_raw(const std::vector<std::pair<std::string, uint16_t>> &son_pubkeys);
std::string create_multisig_address_psbt(const std::vector<std::pair<std::string, uint16_t>> &son_pubkeys);
std::string create_multisig_address_standalone(const std::vector<std::pair<std::string, uint16_t>> &son_pubkeys);
std::string create_transaction_raw(const std::vector<btc_txout> &inputs, const fc::flat_map<std::string, double> outputs);
std::string create_transaction_psbt(const std::vector<btc_txout> &inputs, const fc::flat_map<std::string, double> outputs);
std::string create_transaction_standalone(const std::vector<btc_txout> &inputs, const fc::flat_map<std::string, double> outputs);

90
libraries/plugins/peerplays_sidechain/sidechain_net_handler_bitcoin.cpp
View file

@ -3,6 +3,8 @@
#include <algorithm>
#include <thread>
#include <bitcoin/bitcoin.hpp>
#include <boost/algorithm/hex.hpp>
#include <boost/property_tree/json_parser.hpp>
#include <boost/property_tree/ptree.hpp>
@ -968,16 +970,12 @@ void sidechain_net_handler_bitcoin::process_primary_wallet() {
const chain::global_property_object &gpo = database.get_global_properties();
auto active_sons = gpo.active_sons;
vector<string> son_pubkeys_bitcoin;
vector<std::pair<string, uint16_t>> son_pubkeys_bitcoin;
for (const son_info &si : active_sons) {
son_pubkeys_bitcoin.push_back(si.sidechain_public_keys.at(sidechain_type::bitcoin));
son_pubkeys_bitcoin.push_back(std::make_pair(si.sidechain_public_keys.at(sidechain_type::bitcoin), si.weight));
}
if (!wallet_password.empty()) {
bitcoin_client->walletpassphrase(wallet_password, 5);
}
uint32_t nrequired = son_pubkeys_bitcoin.size() * 2 / 3 + 1;
string reply_str = bitcoin_client->addmultisigaddress(nrequired, son_pubkeys_bitcoin);
string reply_str = create_multisig_address(son_pubkeys_bitcoin);
std::stringstream active_pw_ss(reply_str);
boost::property_tree::ptree active_pw_pt;
@ -1252,6 +1250,16 @@ bool sidechain_net_handler_bitcoin::send_sidechain_transaction(const sidechain_t
return send_transaction(sto, sidechain_transaction);
}
// Creates segwit multisig address
// Function to actually create segwit multisig address should return json string with address info, or empty string in case of failure
std::string sidechain_net_handler_bitcoin::create_multisig_address(const std::vector<std::pair<std::string, uint16_t>> &son_pubkeys) {
std::string new_addr = "";
//new_addr = create_multisig_address_raw(son_pubkeys);
//new_addr = create_multisig_address_psbt(son_pubkeys);
new_addr = create_multisig_address_standalone(son_pubkeys);
return new_addr;
}
// Creates transaction in any format
// Function to actually create transaction should return transaction string, or empty string in case of failure
std::string sidechain_net_handler_bitcoin::create_transaction(const std::vector<btc_txout> &inputs, const fc::flat_map<std::string, double> outputs) {
@ -1279,6 +1287,74 @@ bool sidechain_net_handler_bitcoin::send_transaction(const sidechain_transaction
return send_transaction_psbt(sto, sidechain_transaction);
}
std::string sidechain_net_handler_bitcoin::create_multisig_address_raw(const std::vector<std::pair<std::string, uint16_t>> &son_pubkeys) {
vector<std::string> pubkeys;
for (auto s : son_pubkeys) {
pubkeys.push_back(s.first);
}
if (!wallet_password.empty()) {
bitcoin_client->walletpassphrase(wallet_password, 5);
}
uint32_t nrequired = pubkeys.size() * 2 / 3 + 1;
return bitcoin_client->addmultisigaddress(nrequired, pubkeys);
}
std::string sidechain_net_handler_bitcoin::create_multisig_address_psbt(const std::vector<std::pair<std::string, uint16_t>> &son_pubkeys) {
vector<std::string> pubkeys;
for (auto s : son_pubkeys) {
pubkeys.push_back(s.first);
}
if (!wallet_password.empty()) {
bitcoin_client->walletpassphrase(wallet_password, 5);
}
uint32_t nrequired = pubkeys.size() * 2 / 3 + 1;
return bitcoin_client->addmultisigaddress(nrequired, pubkeys);
}
std::string sidechain_net_handler_bitcoin::create_multisig_address_standalone(const std::vector<std::pair<std::string, uint16_t>> &son_pubkeys) {
using namespace libbitcoin;
using namespace libbitcoin::chain;
using namespace libbitcoin::machine;
using namespace libbitcoin::wallet;
uint32_t nrequired = son_pubkeys.size() * 2 / 3 + 1;
point_list keys;
for (auto son_pubkey : son_pubkeys) {
keys.push_back(ec_public(son_pubkey.first));
}
script witness_script = script::to_pay_multisig_pattern(nrequired, keys);
// sha256 of witness script
data_chunk multisig_hash = to_chunk(sha256_hash(witness_script.to_data(0)));
// redeem script
libbitcoin::machine::operation::list redeemscript_ops{libbitcoin::machine::operation(opcode(0)), libbitcoin::machine::operation(multisig_hash)};
script redeem_script = script(redeemscript_ops);
// address
payment_address address = payment_address(redeem_script, payment_address::testnet_p2sh);
std::stringstream ss;
ss << "{\n \"address\": \"" << address.encoded()
<< "\",\n \"redeemScript\": \"" << encode_base16(witness_script.to_data(0)) << "\"\n}\n";
std::cout << "Redeem Script Hash: " << encode_base16(address.hash()) << std::endl;
std::cout << "Payment Address: " << address.encoded() << std::endl;
std::cout << "Redeem Script: " << redeem_script.to_string(0) << std::endl;
std::cout << "Witness Script: " << witness_script.to_string(0) << std::endl;
std::cout << "Witness Script: " << encode_base16(witness_script.to_data(0)) << std::endl;
std::cout << "Locking Script: " << P2SH_P2WSH.to_string(0) << std::endl;
//create_multisig_address_psbt(son_pubkeys);
return ss.str();
}
std::string sidechain_net_handler_bitcoin::create_transaction_raw(const std::vector<btc_txout> &inputs, const fc::flat_map<std::string, double> outputs) {
return bitcoin_client->createrawtransaction(inputs, outputs);
}