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diff --git a/usr/src/lib/libkmsagent/common/KMSAgentCryptoUtilities.h b/usr/src/lib/libkmsagent/common/KMSAgentCryptoUtilities.h
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+/*
+ * 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.h
+ */
+
+#ifndef KMSAgentCryptoUtilities_H
+#define KMSAgentCryptoUtilities_H
+
+#ifdef WIN32
+#pragma warning(disable: 4786)
+#endif
+
+#define HASH_LENGTH     20
+#define HMAC_LENGTH     20
+
+/**
+ *  Generates a random set of bytes of the specified length.
+ *
+ *  @return boolean success indicator
+ */
+bool GetPseudorandomBytes(
+        int i_iNumBytes,
+        unsigned char* o_pBytes );
+
+/**
+ *  computes SHA-1 hash of the buffer
+ *  @param i_pBufferToHash
+ *  @param i_iBufferToHashSize
+ *  @param o_pHashedBuffer buffer to recieve the SHA-1 hash and must be 
+ *          #HASH_LENGTH bytes
+ *  @return boolean success indicator
+ */
+bool HashBuffer( 
+        const unsigned char* i_pBufferToHash,
+        int i_iBufferToHashSize,
+        unsigned char* o_pHashedBuffer );
+
+#ifdef METAWARE
+
+// implemented in KMSAgentCryptoUtilitiesTreckHmac.c
+extern "C" int HMACBuffers(
+   int i_iBufferCount,
+   const unsigned char** i_pBufferToHMAC,
+   int* i_pBufferToHMACSize,
+   const unsigned char* i_pHMACKey,
+   int i_iHMACKeySize,
+   unsigned char* o_pHMACBuffer );
+
+#else
+/**
+ *  computes HMAC on the supplied buffers using SHA-1
+ *  hashing and the key supplied.  No logging is performed since this
+ *  functions must execute in a Known Answer Test prior to 
+ *  #KMSAgent_InitializeLibrary.
+ *  @param i_iBufferCount number of buffers provided in #i_pBufferToHMAC
+ *  @param i_pBufferToHMAC array of buffers
+ *  @param i_pBufferToHMACSize array of sizes corresponding to buffers in 
+ *      #i_pBufferToHMAC
+ *  @param i_pHMACKey secret key
+ *  @param i_iHMACKeySize  length of the key in bytes 
+ *  @param o_pHMACBuffer  buffer to contain the HMAC, this buffer must be
+ *      #HASH_LENGTH bytes
+ *  @return boolean success indicator
+ */
+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 );
+#endif
+
+
+
+#endif //KMSAgentCryptoUtilities_H