poly1305_policy.hpp

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//---------------------------------------------------------------------------//
// Copyright (c) 2019 Mikhail Komarov <nemo@nil.foundation>
//
// MIT License
//
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// of this software and associated documentation files (the "Software"), to deal
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// The above copyright notice and this permission notice shall be included in all
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//---------------------------------------------------------------------------//
 
#ifndef CRYPTO3_MAC_POLY1305_POLICY_HPP
#define CRYPTO3_MAC_POLY1305_POLICY_HPP
 
#include <boost/integer.hpp>
 
#include <boost/container/static_vector.hpp>
 
#include <nil/crypto3/mac/detail/basic_functions.hpp>
 
namespace nil {
    namespace crypto3 {
        namespace mac {
            namespace detail {
                struct poly1305_policy : public basic_functions<64> {
                    typedef basic_functions<64> policy_type;
 
                    typedef typename policy_type::byte_type byte_type;
 
                    constexpr static const std::size_t word_bits = policy_type::word_bits;
                    typedef typename policy_type::word_type word_type;
 
                    constexpr static const std::size_t block_words = 2;
                    constexpr static const std::size_t block_bits = block_words * word_bits;
                    typedef std::array<word_type, block_words> block_type;
 
                    constexpr static const std::size_t key_words = 32;
                    constexpr static const std::size_t key_bits = key_words * CHAR_BIT;
                    typedef std::array<byte_type, key_words> key_type;
 
                    constexpr static const std::size_t key_schedule_words = 8;
                    constexpr static const std::size_t key_schedule_bits = key_schedule_words * word_bits;
                    typedef std::array<word_type, key_schedule_words> key_schedule_type;
 
                    constexpr static const std::size_t state_size = 16;
                    typedef std::array<byte_type, state_size> state_type;
                };
            }    // namespace detail
        }        // namespace mac
    }            // namespace crypto3
}    // namespace nil
 
#endif    // CRYPTO3_POLY1305_POLICY_HPP