I want to digitally archive signed documents.

With a digital signature the digital document is legal, this isn't the case with a physical print. Documents you want to keep, or are required to keep must be saved digitally. A signature expires after a maximum of 3 years. After this date the signature will show an error unless a timestamp was used. This guarantees the signing date of the document and means that the signature is also valid when the certificate has expired: the timestamp shows that the signature was valid when the document was signed.

The certificate needs to be installed on secure hardware: when a lower amount of signatures is needed this is a PKI-token, with larger amounts an HSM is used.


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