[jira] Resolved: (COMPRESS-98) Handle AES encryption gracefully

["Stefan Bodewig (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/COMPRESS-98?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Stefan Bodewig resolved COMPRESS-98.
------------------------------------

       Resolution: Fixed
    Fix Version/s: 1.1

The title is a bit of a misnomer since there isn't anything graceful about throwing a specialized exception.  8-)

A new exception type has been added and gets used with svn revision 920808.


> Handle AES encryption gracefully
> --------------------------------
>
>                 Key: COMPRESS-98
>                 URL: https://issues.apache.org/jira/browse/COMPRESS-98
>             Project: Commons Compress
>          Issue Type: Improvement
>    Affects Versions: 1.0
>            Reporter: Trejkaz
>             Fix For: 1.1
>
>
> Currently, attempts to read an AES encrypted zip file results in "invalid compression method".  This different form of compression for whatever reason went with a compression type identifier to indicate its use.
> Problem is when I get this error, the library doesn't tell me what compression method it tried to use - having a specific subclass of IOException that I can interrogate for the compression method it couldn't find would be very useful.
> This is important to us because we value accuracy, and marking encrypted entries as unsupported is a change in semantics for our application.

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