| // 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_ZIP_HASHER_DATA_H_ | |
| #define THIRD_PARTY_CREDENTIO_FORMATS_ZIP_HASHER_DATA_H_ | |
| #include <cstdint> | |
| #include "absl/base/nullability.h" | |
| #include "absl/status/statusor.h" | |
| #include "absl/types/span.h" | |
| #include "crypto/algorithms.h" | |
| #include "formats/zip/reader.h" | |
| #include "proto/collection_data_hash_assertion.pb.h" | |
| #include "riegeli/bytes/reader.h" | |
| namespace credentio { | |
| // Produces a "template" CollectionDataHashAssertion. This assertion will have | |
| // the same contents as an assertion produced by DigestCollectionDataHash, | |
| // except for the specific hash value for each file in the ZIP archive. | |
| absl::StatusOr<CollectionDataHashAssertion> CollectionDataHashTemplate( | |
| absl::Span<const ZipReader::FileEntry> file_entries, HashAlgorithm alg); | |
| // Creates a CollectionDataHashAssertion for the given asset. | |
| absl::StatusOr<CollectionDataHashAssertion> DigestCollectionDataHash( | |
| riegeli::Reader* absl_nonnull source, HashAlgorithm alg, | |
| absl::Span<const ZipReader::FileEntry> file_entries, | |
| uint64_t central_directory_offset); | |
| } // namespace credentio | |
| #endif // THIRD_PARTY_CREDENTIO_FORMATS_ZIP_HASHER_DATA_H_ |