1 files changed, 115 insertions, 0 deletions
diff --git a/SoftHSMv2/src/lib/crypto/DESKey.cpp b/SoftHSMv2/src/lib/crypto/DESKey.cpp
new file mode 100644
index 0000000..1d5f9bc
--- /dev/null
+++ b/SoftHSMv2/src/lib/crypto/DESKey.cpp
@@ -0,0 +1,115 @@
+/*
+ * 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.
+ */
+
+/*****************************************************************************
+ DESKey.cpp
+
+ DES key class
+ *****************************************************************************/
+
+#include "config.h"
+#include "ByteString.h"
+#include "Serialisable.h"
+#include "DESKey.h"
+#include "CryptoFactory.h"
+
+// Set the key
+bool DESKey::setKeyBits(const ByteString& keybits)
+{
+	if (bitLen > 0)
+	{
+		// Check if the correct input data is supplied
+		size_t expectedLen = 0;
+
+		switch(bitLen)
+		{
+			case 56:
+				expectedLen = 8;
+				break;
+			case 112:
+				expectedLen = 16;
+				break;
+			case 168:
+				expectedLen = 24;
+				break;
+		};
+
+		// Check the length
+		if (keybits.size() != expectedLen)
+		{
+			return false;
+		}
+	}
+
+	keyData = keybits;
+
+	return true;
+}
+
+// Get key check value
+ByteString DESKey::getKeyCheckValue() const
+{
+	SymAlgo::Type algo = SymAlgo::Unknown;
+	ByteString iv;
+	ByteString data;
+	ByteString encryptedData;
+	ByteString encryptedFinal;
+
+
+	switch (this->getBitLen())
+	{
+		case 56:
+			algo = SymAlgo::DES;
+			break;
+		case 112:
+		case 168:
+			algo = SymAlgo::DES3;
+			break;
+		default:
+			return encryptedData;
+	}
+
+	SymmetricAlgorithm* cipher = CryptoFactory::i()->getSymmetricAlgorithm(algo);
+	if (cipher == NULL) return encryptedData;
+
+	// Single block of null (0x00) bytes
+	data.resize(cipher->getBlockSize());
+	memset(&data[0], 0, data.size());
+
+	if (!cipher->encryptInit(this, SymMode::ECB, iv, false) ||
+	    !cipher->encryptUpdate(data, encryptedData) ||
+	    !cipher->encryptFinal(encryptedFinal))
+	{
+		CryptoFactory::i()->recycleSymmetricAlgorithm(cipher);
+		return encryptedData;
+	}
+	CryptoFactory::i()->recycleSymmetricAlgorithm(cipher);
+
+	encryptedData += encryptedFinal;
+	encryptedData.resize(3);
+
+	return encryptedData;
+}