SHA3.h

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/*
    This file is part of cpp-ethereum.
 
    cpp-ethereum is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.
 
    cpp-ethereum is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.
 
    You should have received a copy of the GNU General Public License
    along with cpp-ethereum.  If not, see <http://www.gnu.org/licenses/>.
*/
#pragma once
 
#include <string>
#include "FixedHash.h"
#include "vector_ref.h"
 
namespace dev {
 
// SHA-3 convenience routines.
 
bool sha3(bytesConstRef _input, bytesRef o_output);
 
inline h256
sha3(bytesConstRef _input)
{
    h256 ret;
    sha3(_input, ret.ref());
    return ret;
}
 
inline h256
sha3(bytes const& _input)
{
    return sha3(bytesConstRef(&_input));
}
 
inline h256
sha3(std::string const& _input)
{
    return sha3(bytesConstRef(_input));
}
 
template<unsigned N>
inline h256
sha3(FixedHash<N> const& _input)
{
    return sha3(_input.ref());
}
 
inline std::string
sha3(std::string const& _input, bool _isNibbles)
{
    return asString((_isNibbles ? sha3(fromHex(_input)) : sha3(bytesConstRef(&_input))).asBytes());
}
 
} // namespace dev