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Posted to dev@poi.apache.org by bu...@apache.org on 2014/11/10 04:47:16 UTC
[Bug 57195] New: org.apache.poi.EncryptedDocumentException: cipher
algorithm not found
https://issues.apache.org/bugzilla/show_bug.cgi?id=57195
Bug ID: 57195
Summary: org.apache.poi.EncryptedDocumentException: cipher
algorithm not found
Product: POI
Version: unspecified
Hardware: PC
Status: NEW
Severity: normal
Priority: P2
Component: POIFS
Assignee: dev@poi.apache.org
Reporter: bearbalu@hotmail.com
I have a bunch of xlsx file with this issue. Unfortunately these files are
non-public and the moment I edit them using my Excel 2010 to remove the
confidential info, the issue goes away. I am happy to email them to someone.
The exception thread is:
org.apache.poi.EncryptedDocumentException: cipher algorithm not found
at
org.apache.poi.poifs.crypt.CipherAlgorithm.fromEcmaId(CipherAlgorithm.java:65)
at
org.apache.poi.poifs.crypt.standard.StandardEncryptionHeader.<init>(StandardEncryptionHeader.java:56)
at
org.apache.poi.poifs.crypt.standard.StandardEncryptionInfoBuilder.initialize(StandardEncryptionInfoBuilder.java:42)
at org.apache.poi.poifs.crypt.EncryptionInfo.<init>(EncryptionInfo.java:72)
at org.apache.poi.poifs.crypt.EncryptionInfo.<init>(EncryptionInfo.java:47)
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[Bug 57195] Support for Office Binary Document RC4 Encryption
Posted by bu...@apache.org.
https://issues.apache.org/bugzilla/show_bug.cgi?id=57195
Andreas Beeker <an...@gmx.de> changed:
What |Removed |Added
----------------------------------------------------------------------------
Summary|org.apache.poi.EncryptedDoc |Support for Office Binary
|umentException: cipher |Document RC4 Encryption
|algorithm not found |
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[Bug 57195] Support for Office Binary Document RC4 Encryption
Posted by bu...@apache.org.
https://issues.apache.org/bugzilla/show_bug.cgi?id=57195
Andreas Beeker <an...@gmx.de> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution|--- |FIXED
--- Comment #3 from Andreas Beeker <an...@gmx.de> ---
Applied as part of r1647867
Looking at the MS-OFFCRYPTO docs, I'm still a little bit puzzled, that there's
a rc4 encryption [1], which is record based (see Biff8DecryptingStream) and the
same term is used for a container based mode
[1] http://msdn.microsoft.com/en-us/library/dd907466(v=office.12).aspx
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[Bug 57195] org.apache.poi.EncryptedDocumentException: cipher
algorithm not found
Posted by bu...@apache.org.
https://issues.apache.org/bugzilla/show_bug.cgi?id=57195
Dominik Stadler <do...@gmx.at> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |NEEDINFO
OS| |All
--- Comment #1 from Dominik Stadler <do...@gmx.at> ---
Unfortunately the code currently does not print out the details of which cipher
the document uses, I have added this to the latest trunk version, so if you can
grab the binaries from
https://builds.apache.org/job/POI/lastSuccessfulBuild/artifact/build/dist/
(build is currently running), then we should see which exact cipher these
documents use...
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[Bug 57195] org.apache.poi.EncryptedDocumentException: cipher
algorithm not found
Posted by bu...@apache.org.
https://issues.apache.org/bugzilla/show_bug.cgi?id=57195
Andreas Beeker <an...@gmx.de> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEEDINFO |NEW
--- Comment #2 from Andreas Beeker <an...@gmx.de> ---
I have already uploaded a temporary patch for this - see
https://issues.apache.org/bugzilla/show_bug.cgi?id=35897#c35
I'm currently trying to get cryptoapi encryption to work.
As I also refactored the internals of the other crypto modules, I'll commit
both when the cryptoapi impl. is ready.
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