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/*
* Copyright 2002-2005 The Apache Software Foundation.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/*
* XSEC
*
* XSECCryptoUtils:= Helper crypo utilities that make life easier
*
* Author(s): Berin Lautenbach
*
* $Id$
*
*/
#ifndef XSECCRYPTOUTILS_INCLUDE
#define XSECCRYPTOUTILS_INCLUDE
#include <xsec/framework/XSECDefs.hpp>
#include <xsec/utils/XSECSafeBuffer.hpp>
#include <xsec/dsig/DSIGConstants.hpp>
/**
* \brief Helper utilities for crypto.
* @ingroup crypto
*/
// --------------------------------------------------------------------------------
// XKMS Limited-Use Shared Secret handling
// --------------------------------------------------------------------------------
#define XKMSAuthenticationValue 0x01
#define XKMSRevocationCodeIdenfitierEncoding1 0x02
#define XKMSRevocationCodeIdenfitierEncoding2 0x03
#define XKMSKeyEncryption 0x04
int DSIG_EXPORT CalculateXKMSAuthenticationKey(unsigned char * input, int inputLen, unsigned char * output, int maxOutputLen);
int DSIG_EXPORT CalculateXKMSRevocationCodeIdentifierEncoding1(unsigned char * input, int inputLen, unsigned char * output, int maxOutputLen);
/* Calculate encoding 2 - Input is original pass phrase */
int DSIG_EXPORT CalculateXKMSRevocationCodeIdentifierEncoding2(unsigned char * input, int inputLen, unsigned char * output, int maxOutputLen);
/* Calculate encoding 2 - Input is encoding 1 */
int DSIG_EXPORT CalculateXKMSRevocationCodeIdentifierEncoding2From1(unsigned char * input, int inputLen, unsigned char * output, int maxOutputLen);
int DSIG_EXPORT CalculateXKMSKEK(unsigned char * input, int inputLen, unsigned char * output, int maxOutputLen);
// --------------------------------------------------------------------------------
// Some Base64 helpers
// --------------------------------------------------------------------------------
XMLCh DSIG_EXPORT * EncodeToBase64XMLCh(unsigned char * input, int inputLen);
unsigned int DSIG_EXPORT DecodeFromBase64XMLCh(const XMLCh * input, unsigned char * output, int maxOutputLen);
unsigned int DSIG_EXPORT DecodeFromBase64(const char * input, unsigned char * output, int maxOutputLen);
// --------------------------------------------------------------------------------
// Some stuff to help with wierd signatures
// --------------------------------------------------------------------------------
// Convert an ASN.1 format DSA signature (!!!) to the two component integers
// NOTE - both r and s must be at least 20 bytes long
bool DSIG_EXPORT ASN2DSASig(const unsigned char * input, unsigned char * r, unsigned char * s);
// --------------------------------------------------------------------------------
// Calculate correct OIDs for an RSA sig
// --------------------------------------------------------------------------------
unsigned char * getRSASigOID(hashMethod hm, int &oidLen);
#endif /* XSECCRYPTOUTILS_INCLUDE */