/usr/include/xsec/enc/NSS/NSSCryptoHash.hpp is in libxml-security-c-dev 1.7.2-2.
This file is owned by root:root, with mode 0o644.
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* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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
*
* NSSCryptoHash := NSS Implementation of Message digests
*
* Author(s): Milan Tomic
*
*/
#ifndef NSSCRYPTOHASH_INCLUDE
#define NSSCRYPTOHASH_INCLUDE
#include <xsec/framework/XSECDefs.hpp>
#include <xsec/enc/XSECCryptoHash.hpp>
#if defined (XSEC_HAVE_NSS)
#include <pk11func.h>
#include <nss.h>
/**
* @ingroup nsscrypto
* @{
*/
/**
* \brief NSS Implementation of Hash functions.
*
* Uses the NSS functions to perform digest functions.
*
*/
class DSIG_EXPORT NSSCryptoHash : public XSECCryptoHash {
public :
/** @name Constructors/Destructors */
//@{
/**
* \brief Construct a Hash object
*
* Creates a NSS based hash object of the required type.
*
* @param alg The algorithm to use for digest operations
*/
NSSCryptoHash(XSECCryptoHash::HashType alg);
virtual ~NSSCryptoHash();
//@}
/** @name HMAC Functions */
//@{
/**
*\brief
*
* Does nothing. If the required function is an HMAC function,
* then NSSCryptoHashHMAC should be used.
*
* @param key The key the HMAC function should use.
*/
virtual void setKey(XSECCryptoKey * key) {}
//@}
/** @name Digest/Hash functions */
//@{
/**
* \brief Reset the hash function
*
* Re-initialises the digest structure.
*/
virtual void reset(void);
/**
* \brief Hash some data.
*
* Take length bytes of data from the data buffer and update the hash
* that already exists. This function may (and normally will) be called
* many times for large blocks of data.
*
* @param data The buffer containing the data to be hashed.
* @param length The number of bytes to be read from data
*/
virtual void hash(unsigned char * data,
unsigned int length);
/**
* \brief Finish up a Digest operation and read the result.
*
* This call tells the CryptoHash object that the input is complete and
* to finalise the Digest. The output of the digest is read into the
* hash buffer (at most maxLength bytes)
*
* @param hash The buffer the hash should be read into.
* @param maxLength The maximum number of bytes to be read into hash
* @returns The number of bytes copied into the hash buffer
*/
virtual unsigned int finish(unsigned char * hash,
unsigned int maxLength);// Finish and get hash
//@}
/** @name Information functions */
//@{
/**
*\brief
*
* Determine the hash type of this object
*
* @returns The hash type
*/
virtual HashType getHashType(void) const;
//@}
private:
// Not implemented constructors
NSSCryptoHash();
unsigned char m_mdValue[XSEC_MAX_HASH_SIZE]; // Final output
unsigned int m_mdLen;
HashType m_hashType;
PK11Context * mp_md;
};
#endif /* XSEC_HAVE_NSS */
#endif /* NSSCRYPTOHASHSHA1_INCLUDE */
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