1 files changed, 44 insertions, 0 deletions
diff --git a/botan/build/botan/cast256.h b/botan/build/botan/cast256.h
new file mode 100644
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--- /dev/null
+++ b/botan/build/botan/cast256.h
@@ -0,0 +1,44 @@
+/*
+* CAST-256
+* (C) 1999-2007 Jack Lloyd
+*
+* Distributed under the terms of the Botan license
+*/
+
+#ifndef BOTAN_CAST256_H__
+#define BOTAN_CAST256_H__
+
+#include <botan/block_cipher.h>
+
+namespace Botan {
+
+/*
+* CAST-256
+*/
+class BOTAN_DLL CAST_256 : public BlockCipher
+   {
+   public:
+      void clear() throw() { MK.clear(); RK.clear(); }
+      std::string name() const { return "CAST-256"; }
+      BlockCipher* clone() const { return new CAST_256; }
+      CAST_256() : BlockCipher(16, 4, 32, 4) {}
+   private:
+      void enc(const byte[], byte[]) const;
+      void dec(const byte[], byte[]) const;
+      void key_schedule(const byte[], u32bit);
+
+      static const u32bit KEY_MASK[192];
+      static const byte   KEY_ROT[32];
+
+      SecureBuffer<u32bit, 48> MK;
+      SecureBuffer<byte, 48> RK;
+   };
+
+extern const u32bit CAST_SBOX1[256];
+extern const u32bit CAST_SBOX2[256];
+extern const u32bit CAST_SBOX3[256];
+extern const u32bit CAST_SBOX4[256];
+
+}
+
+#endif