| // 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_HASHER_DATA_H_ | |
| #define THIRD_PARTY_CREDENTIO_FORMATS_HASHER_DATA_H_ | |
| #include <cstdint> | |
| #include "absl/status/statusor.h" | |
| #include "crypto/algorithms.h" | |
| #include "proto/data_hash_assertion.pb.h" | |
| #include "riegeli/bytes/reader.h" | |
| namespace credentio { | |
| // Produces a "template" DataHashAssertion. | |
| // This assertion will have the same contents as an assertion produced by | |
| // DigestDataHash, except for the specific hash value (which will have the same | |
| // length) and numeric offset/length values. | |
| absl::StatusOr<DataHashAssertion> DataHashTemplate(HashAlgorithm alg); | |
| // Same as above, but for a Riegeli reader. | |
| absl::StatusOr<DataHashAssertion> DigestDataHash( | |
| riegeli::Reader& input, HashAlgorithm alg, uint64_t manifest_store_offset, | |
| uint64_t manifest_store_length); | |
| } // namespace credentio | |
| #endif // THIRD_PARTY_CREDENTIO_FORMATS_HASHER_DATA_H_ |