mirror of
https://github.com/eliboa/TegraRcmGUI.git
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89 lines
2.6 KiB
C++
89 lines
2.6 KiB
C++
/*
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* Copyright (c) 2011, NVIDIA CORPORATION
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* * Neither the name of NVIDIA CORPORATION nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
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* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <iostream>
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using std::cout;
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using std::cerr;
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using std::endl;
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#include <iomanip>
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using std::hex;
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#include <string>
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using std::string;
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#include <cstdlib>
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using std::exit;
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#include "cryptlib.h"
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using CryptoPP::Exception;
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#include "cmac.h"
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using CryptoPP::CMAC;
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#include "aes.h"
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using CryptoPP::AES;
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#include "hex.h"
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using CryptoPP::HexEncoder;
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using CryptoPP::HexDecoder;
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#include "filters.h"
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using CryptoPP::StringSink;
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using CryptoPP::StringSource;
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using CryptoPP::HashFilter;
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using CryptoPP::HashVerificationFilter;
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#include "secblock.h"
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using CryptoPP::SecByteBlock;
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extern "C" int cmac_hash(const unsigned char *msg, int len, unsigned char *cmac_buf)
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{
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SecByteBlock key(NULL, AES::DEFAULT_KEYLENGTH);
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string plain((const char *)msg, len);
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string mac, encoded;
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try {
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CMAC<AES> cmac(key, key.size());
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StringSource(plain, true,
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new HashFilter(cmac,
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new StringSink(mac)
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) // HashFilter
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); // StringSource
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}
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catch(const CryptoPP::Exception& e) {
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cerr << e.what() << endl;
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return 1;
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}
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memcpy(cmac_buf, mac.data(), mac.length());
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return 0;
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}
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