// 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_