aboutsummaryrefslogtreecommitdiffstats
path: root/SoftHSMv2/src/lib/crypto/DESKey.cpp
diff options
context:
space:
mode:
authorNingSun <ning.sun@intel.com>2018-02-08 08:34:03 -0800
committerNingSun <ning.sun@intel.com>2018-02-08 09:14:52 -0800
commit0c89b3ccba7c9b7332ab67ae1936aff51ca62367 (patch)
tree70c1b1d160d4c6d0a83395ca9a87c1264d0d3439 /SoftHSMv2/src/lib/crypto/DESKey.cpp
parent945613b4db4e07f75d2bc7463db580ddfaa700fd (diff)
Initial sshsm project structure
Issue-ID: AAF-94 Change-Id: I5e82fff418e7567b161acf9b98013a9b85ffc5b4 Signed-off-by: NingSun <ning.sun@intel.com>
Diffstat (limited to 'SoftHSMv2/src/lib/crypto/DESKey.cpp')
-rw-r--r--SoftHSMv2/src/lib/crypto/DESKey.cpp115
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;
+}