/*
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* Copyright 2014 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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*/
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#ifndef SYSTEM_KEYMASTER_AES_OPERATION_H_
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#define SYSTEM_KEYMASTER_AES_OPERATION_H_
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#include <openssl/aes.h>
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#include "block_cipher_operation.h"
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namespace keymaster {
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class AesEvpCipherDescription : public EvpCipherDescription {
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public:
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keymaster_algorithm_t algorithm() const override { return KM_ALGORITHM_AES; }
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const keymaster_block_mode_t* SupportedBlockModes(size_t* block_mode_count) const override;
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const EVP_CIPHER* GetCipherInstance(size_t key_size, keymaster_block_mode_t block_mode,
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keymaster_error_t* error) const override;
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size_t block_size_bytes() const override { return AES_BLOCK_SIZE; }
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};
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class AesOperationFactory : public BlockCipherOperationFactory {
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public:
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explicit AesOperationFactory(keymaster_purpose_t purpose)
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: BlockCipherOperationFactory(purpose) {}
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const EvpCipherDescription& GetCipherDescription() const override;
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};
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} // namespace keymaster
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#endif // SYSTEM_KEYMASTER_AES_OPERATION_H_
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