this post was submitted on 25 Jul 2024
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    [–] kionite231@lemmy.ca 63 points 4 months ago (22 children)

    Has anyone confirmed that signature? I think it's not possible to have the signature as a part of the data itself. Kinda chicken egg problem

    [–] Natanael 2 points 4 months ago (1 children)

    You can but you need to define what part of the data the signature covers (a signature can't sign itself, so it must be excluded from the data bundle). Signed PDF files has the signature appended after the document data

    [–] shoki@lemmy.world 4 points 4 months ago

    Exactly. And even though there are message start and end markers it's not quite clear at which pixel the signed image starts and ends. Also the image format that is signed is not defined.

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