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What happens to digitally signed PDF documents 10 years from now? Will they no longer be valid/legally openable?
by sn41 6y ago
What happens to digitally signed PDF documents 10 years from now? Will they no longer be valid/legally openable?
- icebraining 6y agoPDF files are an ISO standard (including the digital signing part), so that should be fine.
- sn41 6y agoBut who authenticates the digital signatures? I am under the impression that these are certified by Adobe.
- TillE 6y agoPDF signing should be pretty standard PKI stuff. If you have Adobe's public certs you're good.
- PeterisP 6y agoIn general, digital signatures should always be cryptographically verifiable by the receiver without anyone's cooperation - certification by someone may be required to make the signature (especially if you'd want the signature to include a trusted timestamp), but everyone else in perpetuity can verify if a signature was certified by someone even if that certifier does not exist anymore.