I have documents that were signed with Adobe CDS certificates using
iText, including a secure timestamp. It seems that for long-term
validation we also need to add the OCSP response or CRL (depending on
the certificate we use, since each one supports a different method). Is
it possible to modify the PKCS 7 structure just to add one of these
without invalidating the signature itself? I read this is something that
Acrobat offers, to enable end-users to sign documents while they are
offline, adding the online portions (secure timestamp, CRL and OCSP
response) to the signatures later.
Thank you,
Daniel Uribe
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