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https://github.com/bitcoinbook/bitcoinbook
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Merge pull request #298 from thecodefactory/develop
Updates libbitcoin code samples to libbitcoin version3 api
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commit
cca1112e47
@ -2,23 +2,29 @@
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int main()
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{
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// Private secret key.
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bc::ec_secret secret;
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bool success = bc::decode_base16(secret,
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// Private secret key string as base16
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bc::ec_secret decoded;
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bc::decode_base16(decoded,
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"038109007313a5807b2eccc082c8c3fbb988a973cacf1a7df9ce725c31b14776");
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assert(success);
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bc::wallet::ec_private secret(
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decoded, bc::wallet::ec_private::mainnet_p2kh);
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// Get public key.
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bc::ec_point public_key = bc::secret_to_public_key(secret);
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std::cout << "Public key: " << bc::encode_hex(public_key) << std::endl;
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bc::wallet::ec_public public_key(secret);
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std::cout << "Public key: " << public_key.encoded() << std::endl;
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// Create Bitcoin address.
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// Normally you can use:
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// bc::payment_address payaddr;
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// bc::set_public_key(payaddr, public_key);
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// const std::string address = payaddr.encoded();
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// bc::wallet::payment_address payaddr =
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// public_key.to_payment_address(
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// bc::wallet::ec_public::mainnet_p2kh);
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// const std::string address = payaddr.encoded();
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// Compute hash of public key for P2PKH address.
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const bc::short_hash hash = bc::bitcoin_short_hash(public_key);
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bc::data_chunk public_key_data;
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public_key.to_data(public_key_data);
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const auto hash = bc::bitcoin_short_hash(public_key_data);
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bc::data_chunk unencoded_address;
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// Reserve 25 bytes
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@ -24,10 +24,10 @@ bc::hash_digest create_merkle(bc::hash_list& merkle)
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{
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// Join both current hashes together (concatenate).
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bc::data_chunk concat_data(bc::hash_size * 2);
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auto concat = bc::make_serializer(concat_data.begin());
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auto concat = bc::serializer<
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decltype(concat_data.begin())>(concat_data.begin());
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concat.write_hash(*it);
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concat.write_hash(*(it + 1));
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assert(concat.iterator() == concat_data.end());
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// Hash both of the hashes.
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bc::hash_digest new_root = bc::bitcoin_hash(concat_data);
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// Add this to the new list.
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@ -39,7 +39,7 @@ bc::hash_digest create_merkle(bc::hash_list& merkle)
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// DEBUG output -------------------------------------
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std::cout << "Current merkle hash list:" << std::endl;
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for (const auto& hash: merkle)
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std::cout << " " << bc::encode_hex(hash) << std::endl;
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std::cout << " " << bc::encode_base16(hash) << std::endl;
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std::cout << std::endl;
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// --------------------------------------------------
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}
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@ -56,7 +56,7 @@ int main()
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bc::hash_literal("0000000000000000000000000000000000000000000000000000000000000022"),
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}};
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const bc::hash_digest merkle_root = create_merkle(tx_hashes);
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std::cout << "Result: " << bc::encode_hex(merkle_root) << std::endl;
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std::cout << "Result: " << bc::encode_base16(merkle_root) << std::endl;
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return 0;
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}
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@ -7,20 +7,19 @@
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int main()
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{
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// Create genesis block.
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const bc::block_type block = bc::genesis_block();
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bc::chain::block block = bc::chain::block::genesis_mainnet();
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// Genesis block contains a single coinbase transaction.
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assert(block.transactions.size() == 1);
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assert(block.transactions().size() == 1);
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// Get first transaction in block (coinbase).
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const bc::transaction_type& coinbase_tx = block.transactions[0];
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const bc::chain::transaction& coinbase_tx = block.transactions()[0];
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// Coinbase tx has a single input.
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assert(coinbase_tx.inputs.size() == 1);
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const bc::transaction_input_type& coinbase_input = coinbase_tx.inputs[0];
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assert(coinbase_tx.inputs().size() == 1);
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const bc::chain::input& coinbase_input = coinbase_tx.inputs()[0];
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// Convert the input script to its raw format.
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const bc::data_chunk raw_message = save_script(coinbase_input.script);
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// Convert this to an std::string.
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std::string message;
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message.resize(raw_message.size());
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std::copy(raw_message.begin(), raw_message.end(), message.begin());
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const auto prefix = false;
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const bc::data_chunk& raw_message = coinbase_input.script().to_data(prefix);
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// Convert this to a std::string.
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std::string message(raw_message.begin(), raw_message.end());
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// Display the genesis block message.
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std::cout << message << std::endl;
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return 0;
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@ -1,3 +1,4 @@
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#include <random>
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#include <bitcoin/bitcoin.hpp>
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// The string we are searching for
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@ -30,7 +31,7 @@ int main()
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{
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// Success!
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std::cout << "Found vanity address! " << address << std::endl;
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std::cout << "Secret: " << bc::encode_hex(secret) << std::endl;
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std::cout << "Secret: " << bc::encode_base16(secret) << std::endl;
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return 0;
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}
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}
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@ -51,11 +52,9 @@ bc::ec_secret random_secret(std::default_random_engine& engine)
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std::string bitcoin_address(const bc::ec_secret& secret)
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{
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// Convert secret to pubkey...
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bc::ec_point pubkey = bc::secret_to_public_key(secret);
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// Finally create address.
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bc::payment_address payaddr;
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bc::set_public_key(payaddr, pubkey);
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// Convert secret to payment address
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bc::wallet::ec_private private_key(secret);
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bc::wallet::payment_address payaddr(private_key);
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// Return encoded form.
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return payaddr.encoded();
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}
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