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u801e
on March 6, 2019
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How to Spoof PDF Signatures
It seems that this wouldn't be an issue if they had made the signature a separate file and had it hard coded to check the entire pdf file.
coldacid
on March 6, 2019
[–]
Or if at least it checked the whole file and just treated the exact block of signature bytes within as a set value (like Authenticode).
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