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From "Stephen Hendrix (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (PDFBOX-2456) create TestSymmetricKeyEncryption.java
Date Mon, 03 Nov 2014 21:34:35 GMT

    [ https://issues.apache.org/jira/browse/PDFBOX-2456?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14195143#comment-14195143
] 

Stephen Hendrix commented on PDFBOX-2456:
-----------------------------------------

Supporting documentation for not decrypting the encryption dictionary from PDF reference 1.7
(http://www.adobe.com/content/dam/Adobe/en/devnet/acrobat/pdfs/pdf_reference_1-7.pdf):

"Unlike strings within the body of the document, those in the encryption  dictionary must
be direct objects. The contents of the encryption dictionary are not encrypted by the usual
methods (the algorithm specified by the V entry). "

> create TestSymmetricKeyEncryption.java
> --------------------------------------
>
>                 Key: PDFBOX-2456
>                 URL: https://issues.apache.org/jira/browse/PDFBOX-2456
>             Project: PDFBox
>          Issue Type: Improvement
>          Components: Utilities
>    Affects Versions: 2.0.0
>         Environment: java7 debian7
>            Reporter: Ralf Hauser
>              Labels: AES256
>             Fix For: 2.0.0
>
>         Attachments: AES256.diff, TestSymmetricKeyEncryption.java, enc128bit_20141025_115145.pdf,
enc256bit_20141025_105451.pdf, preEnc_20141025_105451.pdf, preEnc_20141025_115145.pdf
>
>
> similarly to org.apache.pdfbox.encryption.TestPublicKeyEncryption, also test password
based encryption 
> 1) 128bit
> 2) 256bit AES PDFBOX-1594



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