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-rw-r--r--SoftHSMv2/src/lib/crypto/OSSLRNG.cpp52
1 files changed, 52 insertions, 0 deletions
diff --git a/SoftHSMv2/src/lib/crypto/OSSLRNG.cpp b/SoftHSMv2/src/lib/crypto/OSSLRNG.cpp
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+++ b/SoftHSMv2/src/lib/crypto/OSSLRNG.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.
+ */
+
+/*****************************************************************************
+ OSSLRNG.cpp
+
+ OpenSSL random number generator class
+ *****************************************************************************/
+
+#include "config.h"
+#include "OSSLRNG.h"
+#include <openssl/rand.h>
+
+// Generate random data
+bool OSSLRNG::generateRandom(ByteString& data, const size_t len)
+{
+ data.wipe(len);
+
+ if (len == 0)
+ return true;
+ return RAND_bytes(&data[0], len) == 1;
+}
+
+// Seed the random pool
+void OSSLRNG::seed(ByteString& seedData)
+{
+ RAND_seed(seedData.byte_str(), seedData.size());
+}
+