candidate_types.h

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// MIT License
//
// Copyright (c) 2019 Ruhr University Bochum, Chair for Embedded Security. All Rights reserved.
// Copyright (c) 2019 Marc Fyrbiak, Sebastian Wallat, Max Hoffmann ("ORIGINAL AUTHORS"). All rights reserved.
// Copyright (c) 2021 Max Planck Institute for Security and Privacy. All Rights reserved.
// Copyright (c) 2021 Jörn Langheinrich, Julian Speith, Nils Albartus, René Walendy, Simon Klix ("ORIGINAL AUTHORS"). All rights reserved.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all
// copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
// SOFTWARE.
 
#pragma once
 
#include <map>
#include <vector>
 
namespace hal
{
    namespace module_identification
    {
        enum class CandidateType
        {
            addition = 0,
 
            addition_offset,
 
            subtraction,
 
            counter,
 
            negation,
 
            absolute,
 
            constant_multiplication,
 
            constant_multiplication_offset,
 
            equal,
 
            less_than,
 
            less_equal,
 
            signed_less_than,
 
            signed_less_equal,
 
            value_check,
 
            none,
 
            mixed,
        };
 
        const std::vector<CandidateType> all_checkable_candidate_types = {
            CandidateType::addition,
            CandidateType::addition_offset,
            CandidateType::counter,
            CandidateType::absolute,
 
            CandidateType::constant_multiplication,
            CandidateType::constant_multiplication_offset,
 
            CandidateType::equal,
            CandidateType::less_equal,
 
            CandidateType::value_check,
        };
 
        const std::map<CandidateType, u32> candidate_type_max_operands = {
            {CandidateType::counter, 1},
            {CandidateType::absolute, 1},
            {CandidateType::constant_multiplication, 1},
            {CandidateType::constant_multiplication_offset, 1},
 
            {CandidateType::equal, 2},
            {CandidateType::less_equal, 2},
 
            {CandidateType::addition, 3},
            {CandidateType::addition_offset, 3},
        };
    }    // namespace module_identification
}    // namespace hal