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+/*
+ Copyright (c) 2006, 2012, Oracle and/or its affiliates. All rights reserved.
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; version 2 of the License.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; see the file COPYING. If not, write to the
+ Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston,
+ MA 02110-1301 USA.
+*/
+
+/* blowfish.hpp defines Blowfish
+*/
+
+
+#ifndef TAO_CRYPT_BLOWFISH_HPP
+#define TAO_CRYPT_BLOWFISH_HPP
+
+#include "misc.hpp"
+#include "modes.hpp"
+#ifdef USE_SYS_STL
+ #include <algorithm>
+#else
+ #include "algorithm.hpp"
+#endif
+
+
+namespace STL = STL_NAMESPACE;
+
+
+#if defined(TAOCRYPT_X86ASM_AVAILABLE) && defined(TAO_ASM)
+ #define DO_BLOWFISH_ASM
+#endif
+
+
+namespace TaoCrypt {
+
+enum { BLOWFISH_BLOCK_SIZE = 8 };
+
+
+// Blowfish encryption and decryption, see
+class Blowfish : public Mode_BASE {
+public:
+ enum { BLOCK_SIZE = BLOWFISH_BLOCK_SIZE, ROUNDS = 16 };
+
+ Blowfish(CipherDir DIR, Mode MODE)
+ : Mode_BASE(BLOCK_SIZE, DIR, MODE), sbox_(pbox_ + ROUNDS + 2) {}
+
+#ifdef DO_BLOWFISH_ASM
+ void Process(byte*, const byte*, word32);
+#endif
+ void SetKey(const byte* key, word32 sz, CipherDir fake = ENCRYPTION);
+ void SetIV(const byte* iv) { memcpy(r_, iv, BLOCK_SIZE); }
+private:
+ static const word32 p_init_[ROUNDS + 2];
+ static const word32 s_init_[4 * 256];
+
+ word32 pbox_[ROUNDS + 2 + 4 * 256];
+ word32* sbox_;
+
+ void crypt_block(const word32 in[2], word32 out[2]) const;
+ void AsmProcess(const byte* in, byte* out) const;
+ void ProcessAndXorBlock(const byte*, const byte*, byte*) const;
+
+ Blowfish(const Blowfish&); // hide copy
+ Blowfish& operator=(const Blowfish&); // and assign
+};
+
+
+typedef BlockCipher<ENCRYPTION, Blowfish, ECB> Blowfish_ECB_Encryption;
+typedef BlockCipher<DECRYPTION, Blowfish, ECB> Blowfish_ECB_Decryption;
+
+typedef BlockCipher<ENCRYPTION, Blowfish, CBC> Blowfish_CBC_Encryption;
+typedef BlockCipher<DECRYPTION, Blowfish, CBC> Blowfish_CBC_Decryption;
+
+
+
+} // namespace
+
+#endif // TAO_CRYPT_BLOWFISH_HPP
+