MOBILE-ID · TRUSTED LTANS
RFC 4998 — ASN.1 ERS
Map RFC 4998 to evidence structures, interfaces and matching test criteria.
Evidence Record Syntax (ERS)
STANDARDS TRACKReference for design and evidence processing; the table maps individual requirements to target capabilities without asserting implementation conformance.
| § | Requirement / role | Object | Service | API |
|---|---|---|---|---|
| 3.1 | EvidenceRecord structure | EvidenceRecord | Evidence Service | EvidenceRecord.syntax=ASN1_ERS |
| 4.1 | ArchiveTimeStamp structure | ArchiveTimeStamp | Evidence Service | Evidence package |
| 4.2 | Hash tree generation | ReducedHashTree | Evidence Service | Evidence generation |
| 4.3 | Archive timestamp verification | VerificationReport | Verification Service | Verification API |
| 5.1 | Ordered chain and sequence | ArchiveTimeStampSequence | Evidence Service | Evidence package |
| 5.2 | Timestamp renewal | ArchiveTimeStampChain | Renewal Service | RenewalRequest.mode=TIMESTAMP |
| 5.2 | Hash-tree renewal with data and prior evidence | ArchiveTimeStampSequence | Renewal Service | RenewalRequest.mode=HASH_TREE |
| 5.3 | Verification across renewals | VerificationReport | Verification Service | Verification API |
| 6 | Encryption considerations | EncryptedData | Storage Service | Custody design |
| 7 | Security considerations | AlgorithmPolicy | Trust Adapter Service | Policy design |
Evidence and limitations
No backend or interoperability test report was supplied. Verify configuration, test vectors, version and independent results before publishing implemented capability.
| Decision | Input | Result |
|---|---|---|
| Timestamp renewal | Previous evidence; tree hash remains suitable. | New archive timestamp in the applicable chain. |
| Hash-tree renewal | Original data and prior evidence under the processing model. | Rehash, new tree, new timestamp and new chain. |
Hash-Tree Renewal requires access to the archived data and prior evidence required by the applicable Evidence Record processing model.
