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90 lines
2.1 KiB
C++
90 lines
2.1 KiB
C++
/*
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* Copyright (c) 2020, Ali Mohammad Pur <mpfard@serenityos.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#pragma once
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#include <AK/Types.h>
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#include <LibTLS/Extensions.h>
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namespace TLS {
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// Defined in RFC 5246 section 7.4.1.4.1
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struct SignatureAndHashAlgorithm {
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HashAlgorithm hash;
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SignatureAlgorithm signature;
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};
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enum class KeyExchangeAlgorithm {
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Invalid,
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// Defined in RFC 5246 section 7.4.2 / RFC 4279 section 4
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RSA_PSK,
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// Defined in RFC 5246 section 7.4.3
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DHE_DSS,
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DHE_RSA,
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DH_anon,
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RSA,
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DH_DSS,
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DH_RSA,
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// Defined in RFC 4492 section 2
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ECDHE_RSA,
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ECDH_ECDSA,
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ECDH_RSA,
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ECDHE_ECDSA,
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ECDH_anon,
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};
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// Defined in RFC 5246 section 7.4.1.4.1
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constexpr SignatureAlgorithm signature_for_key_exchange_algorithm(KeyExchangeAlgorithm algorithm)
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{
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switch (algorithm) {
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case KeyExchangeAlgorithm::RSA:
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case KeyExchangeAlgorithm::DHE_RSA:
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case KeyExchangeAlgorithm::DH_RSA:
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case KeyExchangeAlgorithm::RSA_PSK:
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case KeyExchangeAlgorithm::ECDH_RSA:
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case KeyExchangeAlgorithm::ECDHE_RSA:
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return SignatureAlgorithm::RSA;
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case KeyExchangeAlgorithm::DHE_DSS:
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case KeyExchangeAlgorithm::DH_DSS:
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return SignatureAlgorithm::DSA;
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case KeyExchangeAlgorithm::ECDH_ECDSA:
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case KeyExchangeAlgorithm::ECDHE_ECDSA:
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return SignatureAlgorithm::ECDSA;
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case KeyExchangeAlgorithm::DH_anon:
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case KeyExchangeAlgorithm::ECDH_anon:
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default:
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return SignatureAlgorithm::ANONYMOUS;
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}
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}
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enum class CipherAlgorithm {
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Invalid,
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AES_128_CBC,
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AES_128_GCM,
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AES_128_CCM,
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AES_128_CCM_8,
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AES_256_CBC,
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AES_256_GCM,
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};
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constexpr size_t cipher_key_size(CipherAlgorithm algorithm)
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{
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switch (algorithm) {
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case CipherAlgorithm::AES_128_CBC:
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case CipherAlgorithm::AES_128_GCM:
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case CipherAlgorithm::AES_128_CCM:
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case CipherAlgorithm::AES_128_CCM_8:
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return 128;
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case CipherAlgorithm::AES_256_CBC:
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case CipherAlgorithm::AES_256_GCM:
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return 256;
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case CipherAlgorithm::Invalid:
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default:
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return 0;
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}
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}
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}
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