| // Copyright 2022 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. |
| // |
| //////////////////////////////////////////////////////////////////////////////// |
| |
| #include "tink/restricted_data.h" |
| |
| #include <iostream> |
| |
| #include "absl/log/check.h" |
| #include "openssl/crypto.h" |
| #include "tink/subtle/random.h" |
| #include "tink/util/secret_data.h" |
| |
| namespace crypto { |
| namespace tink { |
| |
| RestrictedData::RestrictedData(int64_t num_random_bytes) { |
| CHECK_GE(num_random_bytes, 0) |
| << "Cannot generate a negative number of random bytes.\n"; |
| secret_ = util::SecretDataFromStringView( |
| subtle::Random::GetRandomBytes(num_random_bytes)); |
| } |
| |
| bool RestrictedData::operator==(const RestrictedData& other) const { |
| if (secret_.size() != other.secret_.size()) { |
| return false; |
| } |
| return CRYPTO_memcmp(secret_.data(), other.secret_.data(), secret_.size()) == |
| 0; |
| } |
| |
| } // namespace tink |
| } // namespace crypto |
