From 354bb40e75d94466e91fe6960523612c9d17ccfb Mon Sep 17 00:00:00 2001
From: Karen Arutyunov <karen@codesynthesis.com>
Date: Thu, 2 Nov 2017 23:11:29 +0300
Subject: Add implementation

---
 mysql/extra/yassl/taocrypt/include/twofish.hpp | 94 ++++++++++++++++++++++++++
 1 file changed, 94 insertions(+)
 create mode 100644 mysql/extra/yassl/taocrypt/include/twofish.hpp

(limited to 'mysql/extra/yassl/taocrypt/include/twofish.hpp')

diff --git a/mysql/extra/yassl/taocrypt/include/twofish.hpp b/mysql/extra/yassl/taocrypt/include/twofish.hpp
new file mode 100644
index 0000000..eeb9b6a
--- /dev/null
+++ b/mysql/extra/yassl/taocrypt/include/twofish.hpp
@@ -0,0 +1,94 @@
+/*
+   Copyright (c) 2000, 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.
+*/
+
+/* twofish.hpp defines Twofish
+*/
+
+
+#ifndef TAO_CRYPT_TWOFISH_HPP
+#define TAO_CRYPT_TWOFISH_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_TWOFISH_ASM
+#endif
+
+namespace TaoCrypt {
+
+enum { TWOFISH_BLOCK_SIZE = 16 };
+
+
+// Twofish encryption and decryption, see 
+class Twofish : public Mode_BASE {
+public:
+    enum { BLOCK_SIZE = TWOFISH_BLOCK_SIZE };
+
+    Twofish(CipherDir DIR, Mode MODE)
+        : Mode_BASE(BLOCK_SIZE, DIR, MODE) {}
+
+#ifdef DO_TWOFISH_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 byte     q_[2][256];
+	static const word32 mds_[4][256];
+
+	word32 k_[40];
+	word32 s_[4][256];
+
+	static word32 h0(word32 x, const word32 *key, unsigned int kLen);
+	static word32 h(word32 x, const word32 *key, unsigned int kLen);
+
+    void ProcessAndXorBlock(const byte*, const byte*, byte*) const;
+
+    void encrypt(const byte*, const byte*, byte*) const;
+    void decrypt(const byte*, const byte*, byte*) const;
+
+    void AsmEncrypt(const byte* inBlock, byte* outBlock) const;
+    void AsmDecrypt(const byte* inBlock, byte* outBlock) const;
+
+    Twofish(const Twofish&);            // hide copy
+    Twofish& operator=(const Twofish&); // and assign
+};
+
+
+typedef BlockCipher<ENCRYPTION, Twofish, ECB> Twofish_ECB_Encryption;
+typedef BlockCipher<DECRYPTION, Twofish, ECB> Twofish_ECB_Decryption;
+
+typedef BlockCipher<ENCRYPTION, Twofish, CBC> Twofish_CBC_Encryption;
+typedef BlockCipher<DECRYPTION, Twofish, CBC> Twofish_CBC_Decryption;
+
+
+
+} // naemspace
+
+#endif // TAO_CRYPT_TWOFISH_HPP
+
-- 
cgit v1.1