1 files changed, 91 insertions, 0 deletions
diff --git a/mysql/extra/yassl/taocrypt/include/pwdbased.hpp b/mysql/extra/yassl/taocrypt/include/pwdbased.hpp
new file mode 100644
index 0000000..cf4dff5
--- /dev/null
+++ b/mysql/extra/yassl/taocrypt/include/pwdbased.hpp
@@ -0,0 +1,91 @@
+/*
+   Copyright (c) 2000, 2014, 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.
+*/
+
+
+/* pwdbased.hpp defines PBKDF2 from PKCS #5
+*/
+
+
+#ifndef TAO_CRYPT_PWDBASED_HPP
+#define TAO_CRYPT_PWDBASED_HPP
+
+#include <string.h>
+#include "misc.hpp"
+#include "block.hpp"
+#include "hmac.hpp"
+
+namespace TaoCrypt {
+
+
+// From PKCS #5, T must be type suitable for HMAC<T> 
+template <class T>
+class PBKDF2_HMAC {
+public:
+    word32 MaxDerivedKeyLength() const { return 0xFFFFFFFFU;} // avoid overflow
+
+    word32 DeriveKey(byte* derived, word32 dLen, const byte* pwd, word32 pLen,
+                     const byte* salt, word32 sLen, word32 iterations) const;
+}; 
+
+
+
+template <class T>
+word32 PBKDF2_HMAC<T>::DeriveKey(byte* derived, word32 dLen, const byte* pwd,
+                                 word32 pLen, const byte* salt, word32 sLen,
+                                 word32 iterations) const
+{
+	if (dLen > MaxDerivedKeyLength())
+        return 0;
+
+    ByteBlock buffer(T::DIGEST_SIZE);
+	HMAC<T>   hmac;
+
+    hmac.SetKey(pwd, pLen);
+
+	word32 i = 1;
+
+	while (dLen > 0) {
+		hmac.Update(salt, sLen);
+		word32 j;
+		for (j = 0; j < 4; j++) {
+			byte b = i >> ((3-j)*8);
+			hmac.Update(&b, 1);
+		}
+		hmac.Final(buffer.get_buffer());
+
+		word32 segmentLen = min(dLen, buffer.size());
+		memcpy(derived, buffer.get_buffer(), segmentLen);
+
+		for (j = 1; j < iterations; j++) {
+			hmac.Update(buffer.get_buffer(), buffer.size());
+            hmac.Final(buffer.get_buffer());
+			xorbuf(derived, buffer.get_buffer(), segmentLen);
+		}
+		derived += segmentLen;
+		dLen    -= segmentLen;
+		i++;
+	}
+	return iterations;
+}
+
+
+
+
+} // naemspace
+
+#endif // TAO_CRYPT_PWDBASED_HPP