In the paper world, the preservation of documents and information is easy: you just put them in binders, and their probative value decreases as the print fades away, which normally takes a long time. With electronic documents and data, it is a different scenario as formats and algorithms can change rapidly as vulnerabilities are discovered.
Not all documents and data need long-term preservation. It depends on the timeframe within which it should undauntedly be valid. For long-term archives, it is normally a requirement for long-term preservation functions to be used.How does Comfact Preservation ensure
long-term validity of your documents?
Comfact Preservation adheres to the
conformance levels defined in ETSI TS 103 172. The four conformance levels
are specified as PAdES Baseline Profiles: B-Level, T-Level, LT-Level, and
LTA-Level. Comfact Preservation extends documents to Baseline Levels LT and LTA
in order to ensure the long-term validity and integrity of documents.
- Baseline-B: A signature that can be validated as long as the corresponding certificates are neither revokes nor expired.
- Baseline-T: A signature that proves that the signature already existed at a given point in time.
- Baseline-LT: Incorporates all the material for validating the signature.
- Baseline-LTA: Targets long term availability and integrity of the validation material of digital signatures beyond any event that limit its validity.