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43 lines
1.4 KiB
43 lines
1.4 KiB
#include <bitcoin/bitcoin.hpp>
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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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"038109007313a5807b2eccc082c8c3fbb988a973cacf1a7df9ce725c31b14776");
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assert(success);
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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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// 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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// 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 unencoded_address;
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// Reserve 25 bytes
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// [ version:1 ]
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// [ hash:20 ]
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// [ checksum:4 ]
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unencoded_address.reserve(25);
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// Version byte, 0 is normal BTC address (P2PKH).
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unencoded_address.push_back(0);
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// Hash data
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bc::extend_data(unencoded_address, hash);
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// Checksum is computed by hashing data, and adding 4 bytes from hash.
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bc::append_checksum(unencoded_address);
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// Finally we must encode the result in Bitcoin's base58 encoding
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assert(unencoded_address.size() == 25);
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const std::string address = bc::encode_base58(unencoded_address);
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std::cout << "Address: " << address << std::endl;
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return 0;
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}
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