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Posted to dev@pdfbox.apache.org by "Stephen Hendrix (JIRA)" <ji...@apache.org> on 2014/10/31 22:24:34 UTC

[jira] [Updated] (PDFBOX-2471) AES encryption failing to write Acroform field names and values

     [ https://issues.apache.org/jira/browse/PDFBOX-2471?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Stephen Hendrix updated PDFBOX-2471:
------------------------------------
    Attachment: PDFBOX-2471_Fix__AES_256_bit_encryption_of_COSString.diff

These changes to SecurityHandler, COSWriter fixed the issue for me.

> AES encryption failing to write Acroform field names and values
> ---------------------------------------------------------------
>
>                 Key: PDFBOX-2471
>                 URL: https://issues.apache.org/jira/browse/PDFBOX-2471
>             Project: PDFBox
>          Issue Type: Bug
>          Components: AcroForm, Writing
>    Affects Versions: 2.0.0
>            Reporter: Stephen Hendrix
>         Attachments: PDFBOX-2471_Fix__AES_256_bit_encryption_of_COSString.diff
>
>
> When writing a PDF using AES 256 bit encryption, the field names / values from the Acroform are not being persisted correctly. If I encrypt using RC4 128 bit, they are persisted correctly. I am using snapshot pdfbox:2.0.0-20141023.180319-636.
> I dug into this, and it looks to me the problem is with COSWriter.visitFromString, which invokes  SecurityHandler.decryptString (there is no SecurityHandler.encryptString).



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