lhashes_sha1.h

Go to the documentation of this file.

/*
 * ======================================================================================
 *  __    ____  __  __  ____  ___
 * (  )  (_  _)(  \/  )( ___)/ __)
 *  )(__  _)(_  )    (  )__) \__ \
 * (____)(____)(_/\/\_)(____)(___/
 *
 *  This file is part of the Limes open source library and is licensed under the terms of the GNU Public License.
 *
 *  Commercial licenses are available; contact the maintainers at ben.the.vining@gmail.com to inquire for details.
 *
 * ======================================================================================
 */
 
#pragma once
 
#include <cstdint>
#include <string>
#include <string_view>
#include "lhashes/lhashes_Export.h"
#include "lhashes/lhashes_hash.h"
 
namespace limes::hash
{
 
class LHASH_EXPORT SHA1 final : public Hasher  // cppcheck-suppress noConstructor
{
public:
    void update (const unsigned char* data, std::size_t length) final;
 
    [[nodiscard]] std::string getHash() final;
 
    [[nodiscard]] std::size_t getLengthOfHash() const final;
 
private:
    std::uint32_t digest[5] { 0x67452301, 0xefcdab89, 0x98badcfe, 0x10325476, 0xc3d2e1f0 };
 
    std::string buffer;
 
    std::uint64_t transforms { 0 };
};
 
[[nodiscard]] LHASH_EXPORT std::string sha1 (const char* input, std::size_t length);
 
[[nodiscard]] LHASH_EXPORT std::string sha1 (std::string_view input);
 
}  // namespace limes::hash