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PAdES (Initial questions (Does open source (Apache PDFBox) have PAdES?…

- - - - Will be included in ISO 32000-2 (next standard)
    - - ETSI TS 102 778
      - CEF supports the ETSI EN 319 142 standards released in 2016, but Decision 2015/1506/EU still refers to the previous set of standards
      - ETSI TS 103 172
      - ETSI EN 319 142
- - - - Provides additional restrictions beyond to ISO-32000-1
        
        Defined in section "5.1 Requirements on PDF Signatures"
  - - - short-term electronic signatures. Must include an electronic signature and the signing certificate
    - - B-Level + time-stamp
    - - all certificates of the certificate chain, from the user certificate to the Root CA certificate
      - allows that a document signature can be validated, even after a long period of time
    - - help to validate the signature beyond any event that may limit its validity
- - - - Long Term Validation (LTV)
        
        it must be possible to validate the document to confirm that the signature was valid at the time it was signed