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Posted to dev@pdfbox.apache.org by "Tilman Hausherr (JIRA)" <ji...@apache.org> on 2015/12/03 20:56:11 UTC
[jira] [Resolved] (PDFBOX-3149) Failure to decrypt empty strings
(AES 128)
[ https://issues.apache.org/jira/browse/PDFBOX-3149?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Tilman Hausherr resolved PDFBOX-3149.
-------------------------------------
Resolution: Fixed
Fix Version/s: 2.0.0
Thanks for the patch; I'm setting this to resolved, you can still attach a file if you get one.
> Failure to decrypt empty strings (AES 128)
> ------------------------------------------
>
> Key: PDFBOX-3149
> URL: https://issues.apache.org/jira/browse/PDFBOX-3149
> Project: PDFBox
> Issue Type: Bug
> Components: Crypto, Parsing, PDModel
> Affects Versions: 2.0.0
> Reporter: Jesse Long
> Assignee: Tilman Hausherr
> Priority: Minor
> Fix For: 2.0.0
>
> Attachments: PDFBOX-3149.patch
>
>
> SecurityHandler fails to decrypt empty strings in a AES 128 encrypted PDF.
> Strings like: <</Name ()>>
> This is because it tries to read the first 16 bytes as the AES IV, failing which it throws IOException. Solution: if you cannot read any bytes from the stream, it is empty and so there is nothing to decrypt.
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