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+/*
+ * Copyright (c) 2010 SURFnet bv
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
+ * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
+ * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+ * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
+ * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/*****************************************************************************
+ HashAlgorithm.h
+
+ Base class for hash algorithm classes
+ *****************************************************************************/
+
+#ifndef _SOFTHSM_V2_HASHALGORITHM_H
+#define _SOFTHSM_V2_HASHALGORITHM_H
+
+#include "config.h"
+#include "ByteString.h"
+
+struct HashAlgo
+{
+ enum Type
+ {
+ Unknown,
+ MD5,
+ SHA1,
+ SHA224,
+ SHA256,
+ SHA384,
+ SHA512,
+ GOST
+ };
+};
+
+class HashAlgorithm
+{
+public:
+ // Base constructors
+ HashAlgorithm();
+
+ // Destructor
+ virtual ~HashAlgorithm() { }
+
+ // Hashing functions
+ virtual bool hashInit();
+ virtual bool hashUpdate(const ByteString& data);
+ virtual bool hashFinal(ByteString& hashedData);
+
+ virtual int getHashSize() = 0;
+protected:
+ // The current operation
+ enum
+ {
+ NONE,
+ HASHING
+ }
+ currentOperation;
+};
+
+#endif // !_SOFTHSM_V2_HASHALGORITHM_H
+