53 lines
1.8 KiB
C++
53 lines
1.8 KiB
C++
// Copyright 2015 The Android Open Source Project
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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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// http://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 BUFFET_ENCRYPTOR_H_
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#define BUFFET_ENCRYPTOR_H_
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#include <memory>
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#include <string>
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#include <base/macros.h>
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namespace buffet {
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// An abstract class to perform authenticated encryption.
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class Encryptor {
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public:
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Encryptor() = default;
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virtual ~Encryptor() = default;
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// Encrypts and authenticates the given |plaintext| and emits the
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// |ciphertext|. Returns true on success.
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virtual bool EncryptWithAuthentication(const std::string& plaintext,
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std::string* ciphertext) = 0;
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// Decrypts and authenticates the given |ciphertext| and emits the
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// |plaintext|. Returns true on success.
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virtual bool DecryptWithAuthentication(const std::string& ciphertext,
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std::string* plaintext) = 0;
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// A factory method to be exported by the default Encryptor implementation
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// for a given platform. Like a constructor, this method should not perform
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// any significant initialization work. The caller assumes ownership of the
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// pointer.
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static std::unique_ptr<Encryptor> CreateDefaultEncryptor();
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private:
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DISALLOW_COPY_AND_ASSIGN(Encryptor);
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};
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} // namespace buffet
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#endif // BUFFET_ENCRYPTOR_H_
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