formats/riff/hasher_box.h

// 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_RIFF_HASHER_BOX_H_
#define THIRD_PARTY_CREDENTIO_FORMATS_RIFF_HASHER_BOX_H_

#include "absl/status/statusor.h"
#include "crypto/algorithms.h"
#include "proto/boxes_hash_assertion.pb.h"
#include "riegeli/bytes/reader.h"

namespace credentio {
// Digests the given RIFF asset and returns a BoxesHashAssertion that can be
// used to generate a C2PA manifest store. If no C2PA chunk is present, it is
// assumed that a C2PA chunk will be inserted at the end of the first
// RIFF chunk.
absl::StatusOr<BoxesHashAssertion> DigestRiffBoxHash(riegeli::Reader& input,
                                                     HashAlgorithm alg);
}  // namespace credentio

#endif  // THIRD_PARTY_CREDENTIO_FORMATS_RIFF_HASHER_BOX_H_