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https://issues.apache.org/jira/browse/PDFBOX-4155?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16853792#comment-16853792
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ASF subversion and git services commented on PDFBOX-4155:
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Commit 1860491 from Tilman Hausherr in branch 'pdfbox/branches/issue45'
[ https://svn.apache.org/r1860491 ]
PDFBOX-4155: remove call that is only supported on jdk7+
> Password Security with Unicode needs SASLprep
> ---------------------------------------------
>
> Key: PDFBOX-4155
> URL: https://issues.apache.org/jira/browse/PDFBOX-4155
> Project: PDFBox
> Issue Type: Bug
> Components: Crypto
> Affects Versions: 2.0.8
> Reporter: Marc Kaufman
> Assignee: Tilman Hausherr
> Priority: Minor
> Labels: security
> Fix For: 2.0.16, 3.0.0 PDFBox
>
> Attachments: SASLPrep example.pdf
>
>
> Standard Security handler for Version 6 (AES256) handles Unicode passwords.
> However the current handler is missing this part:
> "The UTF-8 password string shall be generated from Unicode input by
> processing the input string with the SASLprep (RFC 4013) profile of
> stringprep (RFC 3454) using the Normalize and BiDi options, and then
> converting to a UTF-8 representation."
> SASLprep is required to normalize equivalent codings for complex glyphs (such
> as those using umlauts, etc).
> pdmodel/encryption/StandardSecurityHandler.java
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