1 files changed, 51 insertions, 0 deletions
diff --git a/src/lib/block/serpent/serpent.h b/src/lib/block/serpent/serpent.h
new file mode 100644
index 000000000..dc539c9f3
--- /dev/null
+++ b/src/lib/block/serpent/serpent.h
@@ -0,0 +1,51 @@
+/*
+* Serpent
+* (C) 1999-2007 Jack Lloyd
+*
+* Distributed under the terms of the Botan license
+*/
+
+#ifndef BOTAN_SERPENT_H__
+#define BOTAN_SERPENT_H__
+
+#include <botan/block_cipher.h>
+
+namespace Botan {
+
+/**
+* Serpent, an AES finalist
+*/
+class BOTAN_DLL Serpent : public Block_Cipher_Fixed_Params<16, 16, 32, 8>
+   {
+   public:
+      void encrypt_n(const byte in[], byte out[], size_t blocks) const;
+      void decrypt_n(const byte in[], byte out[], size_t blocks) const;
+
+      void clear();
+      std::string name() const { return "Serpent"; }
+      BlockCipher* clone() const { return new Serpent; }
+   protected:
+      /**
+      * For use by subclasses using SIMD, asm, etc
+      * @return const reference to the key schedule
+      */
+      const secure_vector<u32bit>& get_round_keys() const
+         { return round_key; }
+
+      /**
+      * For use by subclasses that implement the key schedule
+      * @param ks is the new key schedule value to set
+      */
+      void set_round_keys(const u32bit ks[132])
+         {
+         round_key.assign(&ks[0], &ks[132]);
+         }
+
+   private:
+      void key_schedule(const byte key[], size_t length);
+      secure_vector<u32bit> round_key;
+   };
+
+}
+
+#endif