/usr/include/botan-2/botan/streebog.h is in libbotan-2-dev 2.4.0-5ubuntu1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 | /*
* Streebog
* (C) 2017 Ribose Inc.
*
* Botan is released under the Simplified BSD License (see license.txt)
*/
#ifndef BOTAN_STREEBOG_H_
#define BOTAN_STREEBOG_H_
#include <botan/hash.h>
namespace Botan {
/**
* Streebog (GOST R 34.11-2012)
* RFC 6986
*/
class BOTAN_PUBLIC_API(2,2) Streebog : public HashFunction
{
public:
size_t output_length() const override { return m_output_bits / 8; }
HashFunction* clone() const override { return new Streebog(m_output_bits); }
void clear() override;
std::string name() const override;
size_t hash_block_size() const override { return 64; };
std::unique_ptr<HashFunction> copy_state() const override;
explicit Streebog(size_t output_bits);
protected:
void add_data(const uint8_t input[], size_t length) override;
void final_result(uint8_t out[]) override;
void compress(const uint8_t input[], bool lastblock = false);
private:
const size_t m_output_bits;
uint64_t m_count;
size_t m_position;
secure_vector<uint8_t> m_buffer;
secure_vector<uint64_t> m_h;
secure_vector<uint64_t> m_S;
};
/**
* Streebog-256
*/
class BOTAN_PUBLIC_API(2,2) Streebog_256 final : public Streebog
{
public:
Streebog_256() : Streebog(256) {}
};
/**
* Streebog-512
*/
class BOTAN_PUBLIC_API(2,2) Streebog_512 final : public Streebog
{
public:
Streebog_512() : Streebog(512) {}
};
}
#endif
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