| // Copyright 2026 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 |
| // |
| // https://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 THIRD_PARTY_CREDENTIO_FORMATS_PNG_CRC_H_ |
| #define THIRD_PARTY_CREDENTIO_FORMATS_PNG_CRC_H_ |
| |
| #include <cstdint> |
| |
| #include "absl/strings/string_view.h" |
| |
| namespace credentio { |
| |
| // Returns the CRC of a PNG chunk as described in |
| // https://www.w3.org/TR/png/#5CRC-algorithm. |
| uint32_t PngChunkCrc(absl::string_view type, absl::string_view data); |
| |
| } // namespace credentio |
| |
| #endif // THIRD_PARTY_CREDENTIO_FORMATS_PNG_CRC_H_ |
