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-rw-r--r--SoftHSMv2/src/lib/crypto/SymmetricKey.cpp109
1 files changed, 109 insertions, 0 deletions
diff --git a/SoftHSMv2/src/lib/crypto/SymmetricKey.cpp b/SoftHSMv2/src/lib/crypto/SymmetricKey.cpp
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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.
+ */
+
+/*****************************************************************************
+ SymmetricKey.cpp
+
+ Base class for symmetric key classes
+ *****************************************************************************/
+
+#include "config.h"
+#include "ByteString.h"
+#include "Serialisable.h"
+#include "SymmetricKey.h"
+#include "CryptoFactory.h"
+
+// Base constructors
+SymmetricKey::SymmetricKey(size_t inBitLen /* = 0 */)
+{
+ bitLen = inBitLen;
+}
+
+SymmetricKey::SymmetricKey(const SymmetricKey& in)
+{
+ keyData = in.keyData;
+ bitLen = in.bitLen;
+}
+
+// Set the key
+bool SymmetricKey::setKeyBits(const ByteString& keybits)
+{
+ if ((bitLen > 0) && ((keybits.size() * 8) != bitLen))
+ {
+ return false;
+ }
+
+ keyData = keybits;
+
+ return true;
+}
+
+// Get the key
+const ByteString& SymmetricKey::getKeyBits() const
+{
+ return keyData;
+}
+
+// Get the key check value
+ByteString SymmetricKey::getKeyCheckValue() const
+{
+ ByteString digest;
+
+ HashAlgorithm* hash = CryptoFactory::i()->getHashAlgorithm(HashAlgo::SHA1);
+ if (hash == NULL) return digest;
+
+ if (!hash->hashInit() ||
+ !hash->hashUpdate(keyData) ||
+ !hash->hashFinal(digest))
+ {
+ CryptoFactory::i()->recycleHashAlgorithm(hash);
+ return digest;
+ }
+ CryptoFactory::i()->recycleHashAlgorithm(hash);
+
+ digest.resize(3);
+
+ return digest;
+}
+
+// Serialisation
+ByteString SymmetricKey::serialise() const
+{
+ return keyData;
+}
+
+// Set the bit length
+void SymmetricKey::setBitLen(const size_t inBitLen)
+{
+ bitLen = inBitLen;
+}
+
+// Retrieve the bit length
+size_t SymmetricKey::getBitLen() const
+{
+ return bitLen;
+}
+