#include <iostream> #include <string> #include <sstream> #include <stdexcept> namespace BitcoinUtils { /** * @class BitcoinAddressConverter * Converts a Bitcoin address to a hexadecimal private key within a specified range. */ class BitcoinAddressConverter { private: /** * Converts a hexadecimal string to an integer. * * @param hexString The hexadecimal string to convert. * @return uint64_t The converted integer value. * @throws std::invalid_argument if the input string is not a valid hexadecimal number. */ uint64_t hexStringToInteger(const std::string& hexString) { std::stringstream ss; ss << std::hex << hexString; uint64_t result; ss >> result; if (ss.fail()) { throw std::invalid_argument("Invalid hexadecimal string."); } return result; } public: /** * Converts a Bitcoin address to a hexadecimal private key within a specified range. * * @param btcAddress The Bitcoin address to convert. * @param minPrivateKey The minimum value of the hexadecimal private key range. * @param maxPrivateKey The maximum value of the hexadecimal private key range. * @return std::string The hexadecimal private key. * @throws std::invalid_argument if the Bitcoin address is not valid or the range is invalid. */ std::string convertToPrivateKey(const std::string& btcAddress, uint64_t minPrivateKey, uint64_t maxPrivateKey) { // Validate the range if (minPrivateKey > maxPrivateKey) { throw std::invalid_argument("Invalid range: minPrivateKey should be less than or equal to maxPrivateKey."); } // Convert the Bitcoin address to an integer uint64_t btcAddressInteger = hexStringToInteger(btcAddress); // Check if the Bitcoin address is within the specified range if (btcAddressInteger < minPrivateKey || btcAddressInteger > maxPrivateKey) { throw std::invalid_argument("Bitcoin address is not within the specified range."); } // Convert the Bitcoin address to a hexadecimal private key std::stringstream ss; ss << std::hex << btcAddressInteger; std::string privateKey = ss.str(); return privateKey; } }; } int main() { std::string btcAddress = "13zb1hQbWVsc2S7ZTZnP2G4undNNpdh5so"; uint64_t minPrivateKey = 0x20000000000000000; uint64_t maxPrivateKey = 0x3ffffffffffffffff; BitcoinUtils::BitcoinAddressConverter converter; try { std::string privateKey = converter.convertToPrivateKey(btcAddress, minPrivateKey, maxPrivateKey); std::cout << "Private Key: " << privateKey << std::endl; } catch (const std::exception& e) { std::cerr << "Error: " << e.what() << std::endl; } return 0; }
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