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https://issues.apache.org/jira/browse/PDFBOX-4466?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Tilman Hausherr updated PDFBOX-4466:
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Attachment: DSS-1538-Signature.pdf
> Signature without /Type /Sig can't be read
> ------------------------------------------
>
> Key: PDFBOX-4466
> URL: https://issues.apache.org/jira/browse/PDFBOX-4466
> Project: PDFBox
> Issue Type: Bug
> Components: Crypto, Signing
> Affects Versions: 1.8.16, 2.0.13
> Reporter: Tilman Hausherr
> Assignee: Tilman Hausherr
> Priority: Major
> Fix For: 1.8.17, 2.0.14, 3.0.0 PDFBox
>
> Attachments: DSS-1538-Signature.pdf
>
>
> Signatures are not to be decrypted, and currently decryption is skipped when
> their type is detected. However the type is optional, so in the attached file
> where the type is missing it is "decrypted". See at the end of PDFBOX-4453
> and in the linked issue of the European commission DSS project. Thanks [~mkl]
> for pointing me to this one.
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