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Updates libbitcoin code samples to libbitcoin version3 api

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This commit is contained in:
Neill Miller 2017-03-29 22:27:11 -05:00
parent f3b980953e
commit 529de7ced8
4 changed files with 34 additions and 30 deletions
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24
code/addr.cpp
View File

@ -2,23 +2,29 @@
int main()
{
// Private secret key.
bc::ec_secret secret;
bool success = bc::decode_base16(secret,
// Private secret key string as base16
bc::ec_secret decoded;
bc::decode_base16(decoded,
"038109007313a5807b2eccc082c8c3fbb988a973cacf1a7df9ce725c31b14776");
assert(success);
bc::wallet::ec_private secret(
decoded, bc::wallet::ec_private::mainnet_p2kh);
// Get public key.
bc::ec_point public_key = bc::secret_to_public_key(secret);
std::cout << "Public key: " << bc::encode_hex(public_key) << std::endl;
bc::wallet::ec_public public_key(secret);
std::cout << "Public key: " << public_key.encoded() << std::endl;
// Create Bitcoin address.
// Normally you can use:
// bc::payment_address payaddr;
// bc::set_public_key(payaddr, public_key);
// bc::wallet::payment_address payaddr =
// public_key.to_payment_address(
// bc::wallet::ec_public::mainnet_p2kh);
// const std::string address = payaddr.encoded();
// Compute hash of public key for P2PKH address.
const bc::short_hash hash = bc::bitcoin_short_hash(public_key);
bc::data_chunk public_key_data;
public_key.to_data(public_key_data);
const auto hash = bc::bitcoin_short_hash(public_key_data);
bc::data_chunk unencoded_address;
// Reserve 25 bytes

8
code/merkle.cpp
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@ -24,10 +24,10 @@ bc::hash_digest create_merkle(bc::hash_list& merkle)
{
// Join both current hashes together (concatenate).
bc::data_chunk concat_data(bc::hash_size * 2);
auto concat = bc::make_serializer(concat_data.begin());
auto concat = bc::serializer<
decltype(concat_data.begin())>(concat_data.begin());
concat.write_hash(*it);
concat.write_hash(*(it + 1));
assert(concat.iterator() == concat_data.end());
// Hash both of the hashes.
bc::hash_digest new_root = bc::bitcoin_hash(concat_data);
// Add this to the new list.
@ -39,7 +39,7 @@ bc::hash_digest create_merkle(bc::hash_list& merkle)
// DEBUG output -------------------------------------
std::cout << "Current merkle hash list:" << std::endl;
for (const auto& hash: merkle)
std::cout << " " << bc::encode_hex(hash) << std::endl;
std::cout << " " << bc::encode_base16(hash) << std::endl;
std::cout << std::endl;
// --------------------------------------------------
}
@ -56,7 +56,7 @@ int main()
bc::hash_literal("0000000000000000000000000000000000000000000000000000000000000022"),
}};
const bc::hash_digest merkle_root = create_merkle(tx_hashes);
std::cout << "Result: " << bc::encode_hex(merkle_root) << std::endl;
std::cout << "Result: " << bc::encode_base16(merkle_root) << std::endl;
return 0;
}

19
code/satoshi-words.cpp
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@ -7,20 +7,19 @@
int main()
{
// Create genesis block.
const bc::block_type block = bc::genesis_block();
bc::chain::block block = bc::chain::block::genesis_mainnet();
// Genesis block contains a single coinbase transaction.
assert(block.transactions.size() == 1);
assert(block.transactions().size() == 1);
// Get first transaction in block (coinbase).
const bc::transaction_type& coinbase_tx = block.transactions[0];
const bc::chain::transaction& coinbase_tx = block.transactions()[0];
// Coinbase tx has a single input.
assert(coinbase_tx.inputs.size() == 1);
const bc::transaction_input_type& coinbase_input = coinbase_tx.inputs[0];
assert(coinbase_tx.inputs().size() == 1);
const bc::chain::input& coinbase_input = coinbase_tx.inputs()[0];
// Convert the input script to its raw format.
const bc::data_chunk raw_message = save_script(coinbase_input.script);
// Convert this to an std::string.
std::string message;
message.resize(raw_message.size());
std::copy(raw_message.begin(), raw_message.end(), message.begin());
const auto prefix = false;
const bc::data_chunk& raw_message = coinbase_input.script().to_data(prefix);
// Convert this to a std::string.
std::string message(raw_message.begin(), raw_message.end());
// Display the genesis block message.
std::cout << message << std::endl;
return 0;

11
code/vanity-miner.cpp
View File

@ -1,3 +1,4 @@
#include <random>
#include <bitcoin/bitcoin.hpp>
// The string we are searching for
@ -30,7 +31,7 @@ int main()
{
// Success!
std::cout << "Found vanity address! " << address << std::endl;
std::cout << "Secret: " << bc::encode_hex(secret) << std::endl;
std::cout << "Secret: " << bc::encode_base16(secret) << std::endl;
return 0;
}
}
@ -51,11 +52,9 @@ bc::ec_secret random_secret(std::default_random_engine& engine)
std::string bitcoin_address(const bc::ec_secret& secret)
{
// Convert secret to pubkey...
bc::ec_point pubkey = bc::secret_to_public_key(secret);
// Finally create address.
bc::payment_address payaddr;
bc::set_public_key(payaddr, pubkey);
// Convert secret to payment address
bc::wallet::ec_private private_key(secret);
bc::wallet::payment_address payaddr(private_key);
// Return encoded form.
return payaddr.encoded();
}