pdfbox-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From Andreas Lehmkühler (JIRA) <j...@apache.org>
Subject [jira] [Commented] (PDFBOX-2469) javax.crypto.BadPaddingException in PDFBox 1.8.8-SNAPSHOT
Date Wed, 05 Nov 2014 18:25:34 GMT

    [ https://issues.apache.org/jira/browse/PDFBOX-2469?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14198782#comment-14198782
] 

Andreas Lehmkühler commented on PDFBOX-2469:
--------------------------------------------

[~tilman] Thanks for your input.

It was quite easy to fix. As already someone mentioned in the code, we simply have to skip
the signature dictionary when decrypting the pdf. 
But there is something wrong. In 1.8.8 I get an exception when extracting the text because
of a missing permission to do so. The trunk extracts the text without any problem. It looks
as if something went wrong when processing the access permissions

> javax.crypto.BadPaddingException in PDFBox 1.8.8-SNAPSHOT
> ---------------------------------------------------------
>
>                 Key: PDFBOX-2469
>                 URL: https://issues.apache.org/jira/browse/PDFBOX-2469
>             Project: PDFBox
>          Issue Type: Bug
>          Components: PDModel
>    Affects Versions: 1.8.7, 2.0.0
>            Reporter: Tim Allison
>            Assignee: Andreas Lehmkühler
>            Priority: Minor
>              Labels: AES128
>             Fix For: 1.8.8, 2.0.0
>
>         Attachments: testPDF_acroForm.pdf
>
>
> [~gagravarr] noticed that one of our old test files fails a Tika test now with PDFBox
1.8.7 and Java 1.6.
> I just tested the pure PDFBox app built with PDFBox 1.8.8-SNAPSHOT, and I'm getting the
same exception with Java 1.6 and Java 1.7.
> Stacktrace: 
> {noformat}
> ExtractText failed with the following exception:
> java.io.IOException: javax.crypto.BadPaddingException: Given final block not properly
padded
>         at javax.crypto.CipherInputStream.getMoreData(CipherInputStream.java:118)
>         at javax.crypto.CipherInputStream.read(CipherInputStream.java:236)
>         at javax.crypto.CipherInputStream.read(CipherInputStream.java:212)
>         at org.apache.pdfbox.pdmodel.encryption.SecurityHandler.encryptData(SecurityHandler.java:316)
>         at org.apache.pdfbox.pdmodel.encryption.SecurityHandler.decryptStream(SecurityHandler.java:421)
>         at org.apache.pdfbox.pdmodel.encryption.SecurityHandler.decrypt(SecurityHandler.java:390)
>         at org.apache.pdfbox.pdmodel.encryption.SecurityHandler.decryptObject(SecurityHandler.java:365)
>         at org.apache.pdfbox.pdmodel.encryption.SecurityHandler.proceedDecryption(SecurityHandler.java:196)
>         at org.apache.pdfbox.pdmodel.encryption.StandardSecurityHandler.decryptDocument(StandardSecurityHandler.java:158)
>         at org.apache.pdfbox.pdmodel.PDDocument.openProtection(PDDocument.java:1598)
>         at org.apache.pdfbox.ExtractText.startExtraction(ExtractText.java:216)
>         at org.apache.pdfbox.ExtractText.main(ExtractText.java:85)
>         at org.apache.pdfbox.PDFBox.main(PDFBox.java:58)
> Caused by: javax.crypto.BadPaddingException: Given final block not properly padded
>         at com.sun.crypto.provider.CipherCore.doFinal(CipherCore.java:811)
>         at com.sun.crypto.provider.CipherCore.doFinal(CipherCore.java:676)
>         at com.sun.crypto.provider.AESCipher.engineDoFinal(AESCipher.java:423)
>         at javax.crypto.Cipher.doFinal(Cipher.java:1708)
>         at javax.crypto.CipherInputStream.getMoreData(CipherInputStream.java:112)
>         ... 12 more
> {noformat}
> java version "1.7.0_71"
> OpenJDK Runtime Environment (rhel-2.5.3.1.el6-x86_64 u71-b14)
> OpenJDK 64-Bit Server VM (build 24.65-b04, mixed mode)
> and
> java version "1.6.0_33"
> OpenJDK Runtime Environment (IcedTea6 1.13.5) (rhel-1.13.5.0.el6_6-x86_64)
> OpenJDK 64-Bit Server VM (build 23.25-b01, mixed mode)



--
This message was sent by Atlassian JIRA
(v6.3.4#6332)

Mime
View raw message