1 files changed, 115 insertions, 0 deletions
diff --git a/usr/src/lib/libkmsagent/common/KMSAgentCryptoUtilities.cpp b/usr/src/lib/libkmsagent/common/KMSAgentCryptoUtilities.cpp
new file mode 100644
index 0000000000..3ae811bc9d
--- /dev/null
+++ b/usr/src/lib/libkmsagent/common/KMSAgentCryptoUtilities.cpp
@@ -0,0 +1,115 @@
+/*
+ * CDDL HEADER START
+ *
+ * The contents of this file are subject to the terms of the
+ * Common Development and Distribution License (the "License").
+ * You may not use this file except in compliance with the License.
+ *
+ * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
+ * or http://www.opensolaris.org/os/licensing.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ *
+ * When distributing Covered Code, include this CDDL HEADER in each
+ * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
+ * If applicable, add the following below this CDDL HEADER, with the
+ * fields enclosed by brackets "[]" replaced with your own identifying
+ * information: Portions Copyright [yyyy] [name of copyright owner]
+ *
+ * CDDL HEADER END
+ */
+
+/*
+ * Copyright (c) 2010, Oracle and/or its affiliates. All rights reserved.
+ */
+
+/**
+ * \file KMSAgentCryptoUtilities.cpp
+ */
+
+#include <openssl/rand.h>
+#include <openssl/hmac.h>
+#include <openssl/err.h>
+#include <openssl/sha.h>
+
+#include "KMSAgentCryptoUtilities.h"
+#include "SYSCommon.h"
+#include "KMSAgentStringUtilities.h"
+//#include "ApplianceParameters.h"
+
+// Find header in CryptoUtilities.h
+bool GetPseudorandomBytes(
+        int i_iNumBytes,
+        unsigned char* o_pBytes )
+{
+    if ( 1 != RAND_bytes( o_pBytes, i_iNumBytes) )
+    {
+        return false;
+    }
+
+    return true;
+}
+
+// assumes o_pHashedBuffer points to HASH_LENGTH bytes
+bool HashBuffer( 
+        const unsigned char* i_pBufferToHash,
+        int i_iBufferToHashSize,
+        unsigned char* o_pHashedBuffer )
+{
+
+    FATAL_ASSERT( HASH_LENGTH == SHA_DIGEST_LENGTH );
+    FATAL_ASSERT( i_pBufferToHash && (i_iBufferToHashSize > 0) && o_pHashedBuffer );
+
+    unsigned char aDigest[HASH_LENGTH];
+
+    if ( NULL == SHA1( i_pBufferToHash, i_iBufferToHashSize, aDigest ) )
+    {
+        return false;
+    }
+
+    memcpy( o_pHashedBuffer, aDigest, HASH_LENGTH );
+
+    return true;
+}
+
+// assumes o_pHMACBuffer points to HMAC_LENGTH bytes
+bool HMACBuffers(
+        int i_iBufferCount,
+        const unsigned char** i_pBufferToHMAC,
+        int* i_pBufferToHMACSize,
+        const unsigned char* i_pHMACKey,
+        int i_iHMACKeySize,
+        unsigned char* o_pHMACBuffer )
+{
+    // assumes o_pHMACBuffer points to HMAC_LENGTH bytes
+
+    FATAL_ASSERT( HMAC_LENGTH == SHA_DIGEST_LENGTH );
+    FATAL_ASSERT( (i_iBufferCount > 0) && 
+                    i_pBufferToHMAC && 
+                    i_pBufferToHMACSize && 
+                    i_pHMACKey && 
+                    (i_iHMACKeySize > 0) && o_pHMACBuffer );
+
+    HMAC_CTX stContext;
+
+    HMAC_CTX_init( &stContext );
+
+    HMAC_Init_ex( &stContext, i_pHMACKey, i_iHMACKeySize, EVP_sha1(), NULL );
+
+    int i;
+    for ( i = 0; i < i_iBufferCount; i++ )
+    {
+        HMAC_Update( &stContext, i_pBufferToHMAC[i], i_pBufferToHMACSize[i] );
+    }
+
+    unsigned int iHMACSize = HMAC_LENGTH;
+
+    HMAC_Final( &stContext, o_pHMACBuffer, &iHMACSize );
+
+    FATAL_ASSERT( iHMACSize == HMAC_LENGTH );
+
+    HMAC_CTX_cleanup( &stContext );
+
+    return true;
+}
+