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https://github.com/kidfromjupiter/nearby.git
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45 lines
1.5 KiB
C++
45 lines
1.5 KiB
C++
// Copyright 2022 Google LLC
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// https://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#ifndef THIRD_PARTY_NEARBY_FASTPAIR_CRYPTO_FAST_PAIR_DECRYPTION_H_
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#define THIRD_PARTY_NEARBY_FASTPAIR_CRYPTO_FAST_PAIR_DECRYPTION_H_
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#include <array>
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#include <string>
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#include <optional>
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#include "fastpair/crypto/decrypted_passkey.h"
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#include "fastpair/crypto/decrypted_response.h"
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namespace nearby {
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namespace fastpair {
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/** Utilities used for encrypting and decrypting Fast Pair packets. */
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class FastPairDecryption {
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public:
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static constexpr int kAesBlockByteSize = 16;
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static std::optional<DecryptedResponse> ParseDecryptResponse(
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const std::array<uint8_t, 16>& aes_key_bytes,
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const std::array<uint8_t, 16>& encrypted_response_bytes);
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static std::optional<DecryptedPasskey> ParseDecryptPasskey(
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const std::array<uint8_t, 16>& aes_key_bytes,
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const std::array<uint8_t, 16>& encrypted_passkey_bytes);
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};
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} // namespace fastpair
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} // namespace nearby
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#endif // THIRD_PARTY_NEARBY_FASTPAIR_HANDSHAKE_FAST_PAIR_DECRYPTION_H_
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