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From bugzi...@apache.org
Subject DO NOT REPLY [Bug 51165] New: [PATCH] Add support for OOXML Agile Encryption
Date Sat, 07 May 2011 02:46:17 GMT

             Bug #: 51165
           Summary: [PATCH] Add support for OOXML Agile Encryption
           Product: POI
           Version: 3.8-dev
          Platform: Macintosh
            Status: NEW
          Severity: enhancement
          Priority: P2
         Component: POIFS
        AssignedTo: dev@poi.apache.org
        ReportedBy: gking@iongrid.com
    Classification: Unclassified

Created attachment 26966
  --> https://issues.apache.org/bugzilla/attachment.cgi?id=26966
git-format-patch @ c7c0e8c implementing agile decryption

Currently (git-svn commit ID c7c0e8c) poifs.crypt generates a RuntimeException
reading past the end of a buffer when presented with an OOXML document that was
created with Agile encryption ([MS-OFFCRYPTO], since both the header
format and the encryption itself are significantly different from the ECMA-376
standard encryption.

This patch adds support for reading the encryption header and decrypting Agile
encrypted documents and changes the Decryptor class into an abstract interface
plus a factory so that different decryption implementations can be applied
depending on the encryption header. The existing ECMA-compliant decryptor has
been renamed EcmaDecryptor to reflect its proper usage.

Additionally, I've renamed the test classes since it appears that even after
adding them to the top-level test suite they weren't being run since the test
harness expects the class name to begin with "Test."

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