1 files changed, 43 insertions, 0 deletions
diff --git a/src/lib/block/threefish/threefish.h b/src/lib/block/threefish/threefish.h
new file mode 100644
index 000000000..327e54843
--- /dev/null
+++ b/src/lib/block/threefish/threefish.h
@@ -0,0 +1,43 @@
+/*
+* Threefish
+* (C) 2013 Jack Lloyd
+*
+* Distributed under the terms of the Botan license
+*/
+
+#ifndef BOTAN_THREEFISH_H__
+#define BOTAN_THREEFISH_H__
+
+#include <botan/block_cipher.h>
+
+namespace Botan {
+
+/**
+* Threefish-512
+*/
+class BOTAN_DLL Threefish_512 : public Block_Cipher_Fixed_Params<64, 64>
+   {
+   public:
+      void encrypt_n(const byte in[], byte out[], size_t blocks) const override;
+      void decrypt_n(const byte in[], byte out[], size_t blocks) const override;
+
+      void set_tweak(const byte tweak[], size_t len);
+
+      void clear() override;
+      std::string name() const override { return "Threefish-512"; }
+      BlockCipher* clone() const override { return new Threefish_512; }
+
+      Threefish_512() : m_T(3) {}
+   protected:
+      const secure_vector<u64bit>& get_T() const { return m_T; }
+      const secure_vector<u64bit>& get_K() const { return m_K; }
+   private:
+      void key_schedule(const byte key[], size_t key_len) override;
+
+      secure_vector<u64bit> m_T;
+      secure_vector<u64bit> m_K;
+   };
+
+}
+
+#endif