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authorunknown <svoj@mysql.com>2005-04-28 18:23:27 +0500
committerunknown <svoj@mysql.com>2005-04-28 18:23:27 +0500
commite28bf9ef5e6a4240755349a73094bc43806faa9f (patch)
treefaf48fd8da1c6b1e9b69a5e89ebff26bb440b34b /extra/yassl/taocrypt/include/modes.hpp
parentb790a34805664e43c37d2b064722ff3ee7d79ad7 (diff)
downloadmariadb-git-e28bf9ef5e6a4240755349a73094bc43806faa9f.tar.gz
WL#2286 Compile MySQL w/YASSL support
yaSSL-0.9.7 library bundled. BUILD/Makefile.am: compile-pentium-debug-yassl added to distribution. Makefile.am: Added yassl_dir to SUBDIRS. It contains path to yassl distribution if --with-yassl specified. It is empty otherwise. configure.in: yaSSL CHECK-function call. extra/Makefile.am: yaSSL added to distribution. include/violite.h: YASSL_MYSQL_COMPATIBLE macro must be defined to make yassl headers compatible.
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diff --git a/extra/yassl/taocrypt/include/modes.hpp b/extra/yassl/taocrypt/include/modes.hpp
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+/* modes.hpp
+ *
+ * Copyright (C) 2003 Sawtooth Consulting Ltd.
+ *
+ * This file is part of yaSSL.
+ *
+ * yaSSL 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; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * yaSSL 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; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
+ */
+
+/* modes.hpp provides ECB and CBC modes for block cipher encryption/decryption
+*/
+
+
+#ifndef TAO_CRYPT_MODES_HPP
+#define TAO_CRYPT_MODES_HPP
+
+#include <string.h>
+#include "misc.hpp"
+
+namespace TaoCrypt {
+
+
+enum Mode { ECB, CBC };
+
+
+// BlockCipher abstraction
+template<CipherDir DIR, class T, Mode MODE>
+class BlockCipher {
+public:
+ BlockCipher() : cipher_(DIR, MODE) {}
+
+ void Process(byte* c, const byte* p, word32 sz)
+ { cipher_.Process(c, p, sz); }
+ void SetKey(const byte* k, word32 sz)
+ { cipher_.SetKey(k, sz, DIR); }
+ void SetKey(const byte* k, word32 sz, const byte* iv)
+ { cipher_.SetKey(k, sz, DIR); cipher_.SetIV(iv); }
+private:
+ T cipher_;
+
+ BlockCipher(const BlockCipher&); // hide copy
+ BlockCipher& operator=(const BlockCipher&); // and assign
+};
+
+
+// Mode Base for block ciphers, static size
+template<int BLOCK_SIZE>
+class Mode_BASE {
+public:
+ Mode_BASE() {}
+ virtual ~Mode_BASE() {}
+
+ virtual void ProcessAndXorBlock(const byte*, const byte*, byte*) const = 0;
+
+ void ECB_Process(byte*, const byte*, word32);
+ void CBC_Encrypt(byte*, const byte*, word32);
+ void CBC_Decrypt(byte*, const byte*, word32);
+
+ void SetIV(const byte* iv) { memcpy(reg_, iv, BLOCK_SIZE); }
+private:
+ byte reg_[BLOCK_SIZE];
+ byte tmp_[BLOCK_SIZE];
+
+ Mode_BASE(const Mode_BASE&); // hide copy
+ Mode_BASE& operator=(const Mode_BASE&); // and assign
+};
+
+
+// ECB Process blocks
+template<int BLOCK_SIZE>
+void Mode_BASE<BLOCK_SIZE>::ECB_Process(byte* out, const byte* in, word32 sz)
+{
+ word32 blocks = sz / BLOCK_SIZE;
+
+ while (blocks--) {
+ ProcessAndXorBlock(in, 0, out);
+ out += BLOCK_SIZE;
+ in += BLOCK_SIZE;
+ }
+}
+
+
+// CBC Encrypt
+template<int BLOCK_SIZE>
+void Mode_BASE<BLOCK_SIZE>::CBC_Encrypt(byte* out, const byte* in, word32 sz)
+{
+ word32 blocks = sz / BLOCK_SIZE;
+
+ while (blocks--) {
+ xorbuf(reg_, in, BLOCK_SIZE);
+ ProcessAndXorBlock(reg_, 0, reg_);
+ memcpy(out, reg_, BLOCK_SIZE);
+ out += BLOCK_SIZE;
+ in += BLOCK_SIZE;
+ }
+}
+
+
+// CBC Decrypt
+template<int BLOCK_SIZE>
+void Mode_BASE<BLOCK_SIZE>::CBC_Decrypt(byte* out, const byte* in, word32 sz)
+{
+ word32 blocks = sz / BLOCK_SIZE;
+ byte hold[BLOCK_SIZE];
+
+ while (blocks--) {
+ memcpy(tmp_, in, BLOCK_SIZE);
+ ProcessAndXorBlock(tmp_, 0, out);
+ xorbuf(out, reg_, BLOCK_SIZE);
+ memcpy(hold, reg_, BLOCK_SIZE); // swap reg_ and tmp_
+ memcpy(reg_, tmp_, BLOCK_SIZE);
+ memcpy(tmp_, hold, BLOCK_SIZE);
+ out += BLOCK_SIZE;
+ in += BLOCK_SIZE;
+ }
+}
+
+
+} // namespace
+
+#endif // TAO_CRYPT_MODES_HPP