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-rw-r--r--src/lib/hash/streebog/streebog.h68
1 files changed, 68 insertions, 0 deletions
diff --git a/src/lib/hash/streebog/streebog.h b/src/lib/hash/streebog/streebog.h
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+++ b/src/lib/hash/streebog/streebog.h
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+/*
+* 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_DLL 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;
+
+ 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_DLL Streebog_256 final : public Streebog
+ {
+ public:
+ Streebog_256() : Streebog(256) {}
+ };
+
+/**
+* Streebog-512
+*/
+class BOTAN_DLL Streebog_512 final : public Streebog
+ {
+ public:
+ Streebog_512() : Streebog(512) {}
+ };
+
+}
+
+#endif