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https://issues.apache.org/jira/browse/PDFBOX-2469?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14214493#comment-14214493
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Andreas Lehmkühler edited comment on PDFBOX-2469 at 11/17/14 10:25 AM:
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I read a lot about the BadPaddingException and learned the the usage of the
CipherInputStream should be avoided. I've replaced at least one piece of code
to avoid the particular stream and now the BadPaddingException is gone. There
is still one part left which doesn't seem to be critical but maybe it's a good
idea to change that part as well
was (Author: lehmi):
I read a lot about the BadPaddingException and learned the the usage of the
CipherInputStream should be avoided. I've replaced at least one peice of code
to avoid the particular stream and now the BadPaddingException is gone. There
is still one part left which doesn't seem to be critical but maybe it's a good
idea to change that part as well
> 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)
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