Admin: Created page with "The common [https://github.com/libbitcoin/libbitcoin libbitcoin] library is a dependency of all others with the exception of libbitcoin-consensus. It..."

2019-06-09T13:27:54Z

Created page with "The common [https://github.com/libbitcoin/libbitcoin libbitcoin] library is a dependency of all others with the exception of libbitcoin-consensus. It..."

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The common [https://github.com/libbitcoin/libbitcoin libbitcoin] library is a dependency of all others with the exception of [[Libbitcoin_Consensus|libbitcoin-consensus]]. It was the first library created and originally contained the core functionality of all of the others.

==Example==
#include <cstdint>
#include <iostream>
#include <string>
#include <bitcoin/bitcoin.hpp>

// Extract Satoshi's words.
int main()
{
const auto block = bc::chain::block::genesis_mainnet();
const auto& tx = block.transactions().front();
const auto& input = tx.inputs().front();
const auto script = input.script().to_data(false);
std::string message(script.begin() + sizeof(uint64_t), script.end());
std::cout << message << std::endl;
return 0;
}

The Times 03/Jan/2009 Chancellor on brink of second bailout for banks

==Bitcoin Related Features==
* Key formats (raw, [https://github.com/bitcoin/bips/blob/master/bip-0032.mediawiki BIP32], WIF, compressed/uncompressed, minikey)
* Encoding functions (base 2/10/16/58/64/85)
* Hash functions (ripemd160, sha1, sha256, sha512, hmac_sha256, hmac_sha512, pkcs5_pbkdf2_hmac_sha512)
* URL parsing ([https://github.com/bitcoin/bips/blob/master/bip-0021.mediawiki BIP21] and [https://github.com/bitcoin/bips/blob/master/bip-0072.mediawiki BIP72])
* Mnemonic functions ([https://github.com/bitcoin/bips/blob/master/bip-0039.mediawiki BIP39])
* All published [https://github.com/bitcoin/bips/blob/master/bip-0039/bip-0039-wordlists.md mnemonic dictionaries]
* Curve math, deterministic ECDSA, verification and encryption functions
* Address functions (P2PKH and P2SH/[https://github.com/bitcoin/bips/blob/master/bip-0016.mediawiki BIP16])
* Stealth addresses functions for wallets and blockchain search
* Wire and text serializable type library (P2P protocol)
* Bitcoin script engine (see [[Libbitcoin_Consensus|libbitcoin-consensus]] for more information)
* Asynchronous P2P networking stack built on [https://think-async.com ASIO] (moved to [[Libbitcoin_Network|libbitcoin-network]] in version 3)

==General Purpose Features==
* Logging utilities
* [http://en.wikipedia.org/wiki/Radix_tree Patricia Trie] template with binary alphabet
* [http://utf8everywhere.org UTF8 Everywhere] tools and integration for Windows
* Command line and configuration file utilities based on [http://www.boost.org/doc/libs/1_55_0/doc/html/program_options.html boost program options]

==Build and Quality Control==
* Autotools builds for GCC/Clang
* All build artifacts generated by [[Libbitcoin_Build|libbitcoin-build]]
* Continuous integration builds via [https://travis-ci.org/libbitcoin/libbitcoin Travis-CI]
* Automated test coverage reporting via [https://travis-ci.org/libbitcoin/libbitcoin Coverall]
* Visual Studio 2013 project and solution files
* Support for 32/64 bit processors and [http://en.wikipedia.org/wiki/Endianness endianness] differences
* Uses C++11 advancements and restricts use of pointers and exceptions

==Dependencies (Version2)==
* [http://www.boost.org boost]
* [https://github.com/bitcoin/secp256k1 libsecp256k1]
* [http://site.icu-project.org ICU] (optional)

==Dependencies (Version3)==
* [http://www.boost.org boost]
* [https://github.com/bitcoin/secp256k1 libsecp256k1]
* [http://site.icu-project.org ICU] (optional)
* [http://www.libpng.org/pub/png/libpng.html libpng] (optional)
* [https://fukuchi.org/works/qrencode libqrencode] (optional)

==See Also==
* [[Libbitcoin]]

==Source==

[http://bitcoin.it/ http://bitcoin.it/]
[[Category:Open source]]
[[Category:Software]]

Libbitcoin Common - Revision history

Admin: Created page with "The common [https://github.com/libbitcoin/libbitcoin libbitcoin] library is a dependency of all others with the exception of libbitcoin-consensus. It..."