| // Copyright 2020 Google LLC |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| // |
| /////////////////////////////////////////////////////////////////////////////// |
| |
| #ifndef TINK_AEAD_INTERNAL_CORD_AES_GCM_BORINGSSL_H_ |
| #define TINK_AEAD_INTERNAL_CORD_AES_GCM_BORINGSSL_H_ |
| |
| #include <memory> |
| |
| #include "absl/strings/string_view.h" |
| #include "openssl/aead.h" |
| #include "openssl/base.h" |
| #include "openssl/cipher.h" |
| #include "tink/aead/cord_aead.h" |
| #include "tink/util/secret_data.h" |
| #include "tink/util/status.h" |
| #include "tink/util/statusor.h" |
| |
| namespace crypto { |
| namespace tink { |
| |
| class CordAesGcmBoringSsl : public CordAead { |
| public: |
| static crypto::tink::util::StatusOr<std::unique_ptr<CordAead>> New( |
| util::SecretData key_value); |
| |
| crypto::tink::util::StatusOr<absl::Cord> Encrypt( |
| absl::Cord plaintext, absl::Cord additional_data) const override; |
| |
| crypto::tink::util::StatusOr<absl::Cord> Decrypt( |
| absl::Cord ciphertext, absl::Cord additional_data) const override; |
| |
| ~CordAesGcmBoringSsl() override {} |
| |
| private: |
| static constexpr int kIvSizeInBytes = 12; |
| static constexpr int kTagSizeInBytes = 16; |
| |
| CordAesGcmBoringSsl() {} |
| crypto::tink::util::Status Init(crypto::tink::util::SecretData key_value); |
| |
| const EVP_CIPHER *cipher_; |
| crypto::tink::util::SecretData key_; |
| }; |
| |
| } // namespace tink |
| } // namespace crypto |
| |
| #endif // TINK_AEAD_INTERNAL_CORD_AES_GCM_BORINGSSL_H_ |