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btc_one_or_weighted_multisig_address implementation

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This commit is contained in:
gladcow 2020-04-16 17:19:55 +03:00
parent b90a0c36e1
commit c67cc5b673
2 changed files with 87 additions and 0 deletions
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67
libraries/plugins/peerplays_sidechain/bitcoin/bitcoin_address.cpp
View file

@ -372,4 +372,71 @@ void btc_one_or_m_of_n_multisig_address::create_segwit_address() {
address = segwit_addr::encode(hrp, 0, hash_data); address = segwit_addr::encode(hrp, 0, hash_data);
} }
btc_one_or_weighted_multisig_address::btc_one_or_weighted_multisig_address(const fc::ecc::public_key &user_key_data,
const std::vector<std::pair<fc::ecc::public_key, uint16_t> > &keys_data,
bitcoin_address::network ntype)
{
network_type = ntype;
create_redeem_script(user_key_data, keys_data);
create_witness_script();
create_segwit_address();
type = payment_type::P2WSH;
}
void btc_one_or_weighted_multisig_address::create_redeem_script(const fc::ecc::public_key &user_key_data, const std::vector<std::pair<fc::ecc::public_key, uint16_t> > &keys_data)
{
script_builder builder;
builder << user_key_data.serialize();
builder << op::CHECKSIG;
builder << op::IF;
builder << op::_1;
builder << op::ELSE;
uint32_t total_weight = 0;
builder << uint32_t(0);
for (auto &p : keys_data) {
total_weight += p.second;
builder << op::SWAP;
builder << p.first.serialize();
builder << op::CHECKSIG;
builder << op::IF;
builder << uint32_t(p.second);
builder << op::ADD;
builder << op::ENDIF;
}
uint32_t threshold_weight = 2 * total_weight / 3;
builder << threshold_weight;
builder << op::GREATERTHANOREQUAL;
builder << op::ENDIF;
redeem_script_ = builder;
fc::sha256 sh = fc::sha256::hash(redeem_script_);
raw_address = bytes(sh.data(), sh.data() + sh.data_size());
}
void btc_one_or_weighted_multisig_address::create_witness_script()
{
script_builder builder;
builder << op::_0;
builder << fc::sha256::hash(redeem_script_.data(), redeem_script_.size());
witness_script_ = builder;
}
void btc_one_or_weighted_multisig_address::create_segwit_address()
{
std::string hrp;
switch (network_type) {
case (network::mainnet):
hrp = "bc";
break;
case (network::testnet):
hrp = "tb";
break;
case (network::regtest):
hrp = "bcrt";
break;
}
fc::sha256 sh = fc::sha256::hash(&redeem_script_[0], redeem_script_.size());
std::vector<uint8_t> hash_data(sh.data(), sh.data() + sh.data_size());
address = segwit_addr::encode(hrp, 0, hash_data);
}
} } } } } }

20
libraries/plugins/peerplays_sidechain/include/graphene/peerplays_sidechain/bitcoin/bitcoin_address.hpp
View file

@ -175,6 +175,26 @@ public:
bytes witness_script_; bytes witness_script_;
}; };
class btc_one_or_weighted_multisig_address : public bitcoin_address {
public:
btc_one_or_weighted_multisig_address() = default;
btc_one_or_weighted_multisig_address(const fc::ecc::public_key &user_key_data, const std::vector<std::pair<fc::ecc::public_key, uint16_t>>& keys_data,
network network_type = network::regtest);
bytes get_redeem_script() const {
return redeem_script_;
}
bytes get_witness_script() const {
return witness_script_;
}
private:
void create_redeem_script(const fc::ecc::public_key &user_key_data, const std::vector<std::pair<fc::ecc::public_key, uint16_t>>& keys_data);
void create_witness_script();
void create_segwit_address();
public:
bytes redeem_script_;
bytes witness_script_;
};
} } } } } }
FC_REFLECT_ENUM(graphene::peerplays_sidechain::bitcoin::bitcoin_address::network, FC_REFLECT_ENUM(graphene::peerplays_sidechain::bitcoin::bitcoin_address::network,