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vbuch / node-signpdf

Simple signing of PDFs in node.
MIT License
719 stars 178 forks source link

Question regarding embedded timestamp #68

Closed j-tegen closed 4 years ago

j-tegen commented 4 years ago

Hi,

First of all - thank you for the work, it seems very promising.

I've cloned the repo and tried to figure out if there is any way to add an embedded timestamp using a TSA (Trusted timestamp authority). Currently when signing a document (for example in the test files), Adobe will show a warning that the "Signing time is from the clock on the signer's computer".

Is there any way to provide an embedded timestamp to the signature? If not, is this something on your radar for future improvements?

vbuch commented 4 years ago

I was looking into the topic some time ago. I had bookmarked this thing https://www.timenotary.com/about/ but then life stopped me and... I cant say much more than that link. Would be great if someone implemented that...

Edit: Just found "section 6.3.14 in https://www.adobe.com/devnet-docs/acrobatetk/tools/DigSigDC/Acrobat_DigitalSignatures_in_PDF.pdf" as my only note on the topic

vbuch commented 4 years ago

Embedding a timestamp is quite related to PAdES and issue #71 Just linking here.

stale[bot] commented 4 years ago

This issue has been automatically marked as stale because it has not had activity in the past 90 days. It will be closed if no further activity occurs. Thank you for your contributions.