this post was submitted on 10 Oct 2025
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Cryptographic signatures are something we should have been normalizing for awhile now.

I remember during the LTT Linux challenge, at one point they were assigned the task "sign a PDF." Linus interpreted this as PGP sign the document, which apparently Okular can do but he didn't have any credentials set up. Luke used some online tool to photoshop an image of his handwriting into the document.