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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
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