/
githubmirror
/
bitcoin
Обзор
Документация
Войти
/
githubmirror
/
bitcoin
Код
Запросы
0
Пакеты
0
Релизы
0
Аналитика
Безопасность
master
src/crypto/sha256.h
53 строки
1 KB
rustaceanrob
refactor: Make all `const static` class members `constexpr`
24 июл 2026, 16:01
Не верифицирован
24 июл 2026, 16:01
05c35c4
Код
Авторство
О чём код?
// Copyright (c) 2014-present The Bitcoin Core developers // Distributed under the MIT software license, see the accompanying // file COPYING or http://www.opensource.org/licenses/mit-license.php. #ifndef BITCOIN_CRYPTO_SHA256_H #define BITCOIN_CRYPTO_SHA256_H #include <cstdint> #include <cstdlib> #include <string> /** A hasher class for SHA-256. */ class CSHA256 { private: uint32_t s[8]; unsigned char buf[64]; uint64_t bytes{0}; public: static constexpr size_t OUTPUT_SIZE{32}; CSHA256(); CSHA256& Write(const unsigned char* data, size_t len); void Finalize(unsigned char hash[OUTPUT_SIZE]); CSHA256& Reset(); }; namespace sha256_implementation { enum UseImplementation : uint8_t { STANDARD = 0, USE_SSE4 = 1 << 0, USE_AVX2 = 1 << 1, USE_SHANI = 1 << 2, USE_SSE4_AND_AVX2 = USE_SSE4 | USE_AVX2, USE_SSE4_AND_SHANI = USE_SSE4 | USE_SHANI, USE_ALL = USE_SSE4 | USE_AVX2 | USE_SHANI, }; } /** Autodetect the best available SHA256 implementation. * Returns the name of the implementation. */ std::string SHA256AutoDetect(sha256_implementation::UseImplementation use_implementation = sha256_implementation::USE_ALL); /** Compute multiple double-SHA256's of 64-byte blobs. * output: pointer to a blocks*32 byte output buffer * input: pointer to a blocks*64 byte input buffer * blocks: the number of hashes to compute. */ void SHA256D64(unsigned char* output, const unsigned char* input, size_t blocks); #endif // BITCOIN_CRYPTO_SHA256_H