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-rw-r--r--botan/src/block/cast/cast128.h47
1 files changed, 47 insertions, 0 deletions
diff --git a/botan/src/block/cast/cast128.h b/botan/src/block/cast/cast128.h
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+++ b/botan/src/block/cast/cast128.h
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+/*
+* CAST-128
+* (C) 1999-2007 Jack Lloyd
+*
+* Distributed under the terms of the Botan license
+*/
+
+#ifndef BOTAN_CAST128_H__
+#define BOTAN_CAST128_H__
+
+#include <botan/block_cipher.h>
+
+namespace Botan {
+
+/*
+* CAST-128
+*/
+class BOTAN_DLL CAST_128 : public BlockCipher
+ {
+ public:
+ void clear() throw() { MK.clear(); RK.clear(); }
+ std::string name() const { return "CAST-128"; }
+ BlockCipher* clone() const { return new CAST_128; }
+ CAST_128() : BlockCipher(8, 11, 16) {}
+ private:
+ void enc(const byte[], byte[]) const;
+ void dec(const byte[], byte[]) const;
+ void key_schedule(const byte[], u32bit);
+
+ static void key_schedule(u32bit[16], u32bit[4]);
+
+ static const u32bit S5[256];
+ static const u32bit S6[256];
+ static const u32bit S7[256];
+ static const u32bit S8[256];
+
+ SecureBuffer<u32bit, 16> MK, 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