| /* |
| * Copyright 2014 The Android Open Source Project |
| * |
| * 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. |
| */ |
| |
| #include "hmac_key.h" |
| |
| #include <openssl/err.h> |
| #include <openssl/rand.h> |
| |
| #include "hmac_operation.h" |
| |
| namespace keymaster { |
| |
| static HmacSignOperationFactory sign_factory; |
| static HmacVerifyOperationFactory verify_factory; |
| |
| OperationFactory* HmacKeyFactory::GetOperationFactory(keymaster_purpose_t purpose) const { |
| switch (purpose) { |
| case KM_PURPOSE_SIGN: |
| return &sign_factory; |
| case KM_PURPOSE_VERIFY: |
| return &verify_factory; |
| default: |
| return nullptr; |
| } |
| } |
| |
| keymaster_error_t HmacKeyFactory::LoadKey(const KeymasterKeyBlob& key_material, |
| const AuthorizationSet& hw_enforced, |
| const AuthorizationSet& sw_enforced, |
| UniquePtr<Key>* key) const { |
| if (!key) |
| return KM_ERROR_OUTPUT_PARAMETER_NULL; |
| |
| keymaster_error_t error; |
| key->reset(new HmacKey(key_material, hw_enforced, sw_enforced, &error)); |
| if (!key->get()) |
| error = KM_ERROR_MEMORY_ALLOCATION_FAILED; |
| return error; |
| } |
| |
| } // namespace keymaster |