2 * Copyright (c) 2023 Samsung Electronics Co., Ltd. All rights reserved
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License
17 #include <generic-backend/exception.h>
18 #include <tz-backend/ctx.h>
19 #include <tz-backend/internals.h>
20 #include <dpl/log/log.h>
26 void CipherCtx::customize(const CryptoAlgorithm& algo)
29 if (!algo.getParam(ParamName::ED_AAD, aad))
30 ThrowErr(Exc::InputParam, "Missing AAD");
32 Internals::addAAD(m_opId, aad);
35 RawBuffer CipherCtx::update(const RawBuffer& input)
37 return Internals::updateCipher(m_opId, input);
40 RawBuffer CipherCtx::finalize(const RawBuffer& input)
43 * It is assumed that finalize for GCM encryption will return the GCM tag only.
44 * In case of GCM decryption the tag will be passed as finalizeCipher argument.
46 return Internals::finalizeCipher(m_opId, input);
49 CipherCtx::~CipherCtx()
51 // Always try to cleanup the TA side. Ignore the results.
53 Internals::cleanupCipher(m_opId);
55 LogError("Context cleanup failed");