Subject:
After a recent review of our logs, we found that some partners are still using an unsupported compliance level ( AdES-LTA ) for the signatures.
Impact:
Signatures will fail if an unsupported conformance level (AdES-LTA) is used.
Note:
Previous versions of AIS were more tolerant of this conformance level than the latest update of AIS. The supported conformance levels are currently: AdES-B-B, AdES-B-T, and AdES-B-LT
Required actions:
We ask our Signing Partners to review their implementation and only if the unsupported conformance level AdES-LTA is used, to adapt it to one of the supported conformance levels AdES-B-B, AdES-B-T, and AdES-B-LT.
Contact: Support for Swisscom Trust Services Partners (LINK)
Reference Guide: Reference Guide