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Posted to dev@pdfbox.apache.org by "Andreas Lehmkühler (JIRA)" <ji...@apache.org> on 2014/11/25 23:18:13 UTC

[jira] [Resolved] (PDFBOX-2522) javax.crypto.IllegalBlockSizeException in ExtractText

     [ https://issues.apache.org/jira/browse/PDFBOX-2522?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Andreas Lehmkühler resolved PDFBOX-2522.
----------------------------------------
       Resolution: Fixed
    Fix Version/s: 1.8.8

[~tilman] You already fixed that in the trunk, see [r1638940|https://svn.apache.org/r1638940]. The old parser tries to decrypt the cross reference stream, but that one shall not be encrypted.

> javax.crypto.IllegalBlockSizeException in ExtractText
> -----------------------------------------------------
>
>                 Key: PDFBOX-2522
>                 URL: https://issues.apache.org/jira/browse/PDFBOX-2522
>             Project: PDFBox
>          Issue Type: Bug
>          Components: Parsing, Text extraction
>    Affects Versions: 1.8.8
>            Reporter: Tilman Hausherr
>            Assignee: Andreas Lehmkühler
>             Fix For: 1.8.8
>
>         Attachments: 474863.pdf
>
>
> The attached file can be viewed, but ExtractText is not possible:
> {code}
> Exception in thread "main" java.io.IOException: javax.crypto.IllegalBlockSizeException: Input length must be multiple of 16 when decrypting with padded cipher
> 	at org.apache.pdfbox.pdmodel.encryption.SecurityHandler.encryptData(SecurityHandler.java:361)
> 	at org.apache.pdfbox.pdmodel.encryption.SecurityHandler.decryptStream(SecurityHandler.java:448)
> 	at org.apache.pdfbox.pdmodel.encryption.SecurityHandler.decrypt(SecurityHandler.java:413)
> 	at org.apache.pdfbox.pdmodel.encryption.SecurityHandler.decryptObject(SecurityHandler.java:389)
> 	at org.apache.pdfbox.pdmodel.encryption.SecurityHandler.proceedDecryption(SecurityHandler.java:178)
> 	at org.apache.pdfbox.pdmodel.encryption.StandardSecurityHandler.decryptDocument(StandardSecurityHandler.java:164)
> 	at org.apache.pdfbox.pdmodel.PDDocument.openProtection(PDDocument.java:1224)
> 	at org.apache.pdfbox.util.PDFTextStripper.writeText(PDFTextStripper.java:265)
> 	at org.apache.pdfbox.tools.ExtractText.startExtraction(ExtractText.java:241)
> 	at org.apache.pdfbox.tools.ExtractText.main(ExtractText.java:84)
> 	at org.apache.pdfbox.tools.PDFBox.main(PDFBox.java:55)
> Caused by: javax.crypto.IllegalBlockSizeException: Input length must be multiple of 16 when decrypting with padded cipher
> 	at com.sun.crypto.provider.CipherCore.doFinal(CipherCore.java:750)
> 	at com.sun.crypto.provider.CipherCore.doFinal(CipherCore.java:676)
> 	at com.sun.crypto.provider.AESCipher.engineDoFinal(AESCipher.java:313)
> 	at javax.crypto.Cipher.doFinal(Cipher.java:2145)
> 	at org.apache.pdfbox.pdmodel.encryption.SecurityHandler.encryptData(SecurityHandler.java:343)
> 	... 10 more
> {code}



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