Implement decryption in the Serpent assembly code

1 files changed, 33 insertions, 0 deletions

diff --git a/modules/alg_ia32/serpent.h b/modules/alg_ia32/serpent.h
new file mode 100644
index 000000000..85e0345d0
--- /dev/null
+++ b/modules/alg_ia32/serpent.h
@@ -0,0 +1,33 @@
+/*************************************************
+* Serpent Header File                            *
+* (C) 1999-2006 The Botan Project                *
+*************************************************/
+
+#ifndef BOTAN_SERPENT_H__
+#define BOTAN_SERPENT_H__
+
+#include <botan/base.h>
+
+namespace Botan {
+
+/*************************************************
+* Serpent                                        *
+*************************************************/
+class Serpent : public BlockCipher
+   {
+   public:
+      void clear() throw() { round_key.clear(); }
+      std::string name() const { return "Serpent"; }
+      BlockCipher* clone() const { return new Serpent; }
+      Serpent() : BlockCipher(16, 16, 32, 8) {}
+   private:
+      void enc(const byte[], byte[]) const;
+      void dec(const byte[], byte[]) const;
+      void key(const byte[], u32bit);
+
+      SecureBuffer<u32bit, 132> round_key;
+   };
+
+}
+
+#endif