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Diffstat (limited to 'botan/build/botan/aes.h')
-rw-r--r-- | botan/build/botan/aes.h | 81 |
1 files changed, 81 insertions, 0 deletions
diff --git a/botan/build/botan/aes.h b/botan/build/botan/aes.h new file mode 100644 index 0000000..05e2e31 --- /dev/null +++ b/botan/build/botan/aes.h @@ -0,0 +1,81 @@ +/** +* AES +* (C) 1999-2007 Jack Lloyd +* +* Distributed under the terms of the Botan license +*/ + +#ifndef BOTAN_AES_H__ +#define BOTAN_AES_H__ + +#include <botan/block_cipher.h> + +namespace Botan { + +/** +* Rijndael aka AES +*/ +class BOTAN_DLL AES : public BlockCipher + { + public: + void clear() throw(); + std::string name() const { return "AES"; } + BlockCipher* clone() const { return new AES; } + AES() : BlockCipher(16, 16, 32, 8) { ROUNDS = 14; } + AES(u32bit); + private: + void enc(const byte[], byte[]) const; + void dec(const byte[], byte[]) const; + void key_schedule(const byte[], u32bit); + static u32bit S(u32bit); + + static const byte SE[256]; + static const byte SD[256]; + static const u32bit TE[1024]; + static const u32bit TD[1024]; + + u32bit ROUNDS; + + SecureBuffer<u32bit, 56> EK; + SecureBuffer<byte, 16> ME; + + SecureBuffer<u32bit, 56> DK; + SecureBuffer<byte, 16> MD; + }; + +/** +* AES-128 +*/ +class BOTAN_DLL AES_128 : public AES + { + public: + std::string name() const { return "AES-128"; } + BlockCipher* clone() const { return new AES_128; } + AES_128() : AES(16) {} + }; + +/** +* AES-192 +*/ +class BOTAN_DLL AES_192 : public AES + { + public: + std::string name() const { return "AES-192"; } + BlockCipher* clone() const { return new AES_192; } + AES_192() : AES(24) {} + }; + +/** +* AES-256 +*/ +class BOTAN_DLL AES_256 : public AES + { + public: + std::string name() const { return "AES-256"; } + BlockCipher* clone() const { return new AES_256; } + AES_256() : AES(32) {} + }; + +} + +#endif |