1 files changed, 72 insertions, 0 deletions
diff --git a/comm/third_party/botan/src/lib/hash/streebog/streebog.h b/comm/third_party/botan/src/lib/hash/streebog/streebog.h
new file mode 100644
index 0000000000..a573964d8e
--- /dev/null
+++ b/comm/third_party/botan/src/lib/hash/streebog/streebog.h
@@ -0,0 +1,72 @@
+/*
+* 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>
+
+BOTAN_FUTURE_INTERNAL_HEADER(streebog.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);
+
+      void compress_64(const uint64_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