78 lines
2.6 KiB
C++
78 lines
2.6 KiB
C++
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/*
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* Copyright (c) 2011-2012 Juli Mallett. 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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* 1. 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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* 2. 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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*
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* THIS SOFTWARE IS PROVIDED BY AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <common/registrar.h>
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#include <crypto/crypto_hash.h>
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namespace {
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struct MethodRegistrarKey;
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typedef Registrar<MethodRegistrarKey, const CryptoHash::Method *> MethodRegistrar;
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}
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CryptoHash::Method::Method(const std::string& name)
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: name_(name)
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{
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MethodRegistrar::instance()->enter(this);
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}
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const CryptoHash::Method *
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CryptoHash::Method::method(CryptoHash::Algorithm algorithm)
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{
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std::set<const CryptoHash::Method *> method_set = MethodRegistrar::instance()->enumerate();
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std::set<const CryptoHash::Method *>::const_iterator it;
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for (it = method_set.begin(); it != method_set.end(); ++it) {
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const CryptoHash::Method *m = *it;
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std::set<CryptoHash::Algorithm> algorithm_set = m->algorithms();
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if (algorithm_set.find(algorithm) == algorithm_set.end())
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continue;
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return (*it);
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}
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ERROR("/crypto/encryption/method") << "Could not find a method for algorithm: " << algorithm;
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return (NULL);
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}
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std::ostream&
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operator<< (std::ostream& os, CryptoHash::Algorithm algorithm)
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{
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switch (algorithm) {
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case CryptoHash::MD5:
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return (os << "MD5");
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case CryptoHash::SHA1:
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return (os << "SHA1");
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case CryptoHash::SHA256:
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return (os << "SHA256");
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case CryptoHash::SHA512:
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return (os << "SHA512");
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case CryptoHash::RIPEMD160:
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return (os << "RIPEMD160");
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}
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NOTREACHED("/crypto/encryption");
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}
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