


Signing of documents
Validity check
It allows to verify the validity of a digital signature:
- Integrity: Verification of the hash concerning the original document.
- Expiration: : It is verified that the digital signature certificate is valid on the current date and time concerning the chronological stamp
- Trust: It is verified that the digital signature certificate has been issued by a trusted open digital certification authority.
- Revocation: It is verified, via the OCSP or CRL protocol, that the digital certificate is valid at the time the signature is generated.