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https://issues.apache.org/jira/browse/PDFBOX-5866?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17872174#comment-17872174
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Tilman Hausherr commented on PDFBOX-5866:
-----------------------------------------
Exception in thread "main" java.io.IOException:
java.security.InvalidKeyException: Invalid AES key length: 48 bytes
at
org.apache.pdfbox.pdmodel.encryption.StandardSecurityHandler.validatePerms(StandardSecurityHandler.java:355)
at
org.apache.pdfbox.pdmodel.encryption.StandardSecurityHandler.prepareForDecryption(StandardSecurityHandler.java:296)
at
org.apache.pdfbox.pdfparser.COSParser.prepareDecryption(COSParser.java:1214)
at
org.apache.pdfbox.pdfparser.COSParser.retrieveTrailer(COSParser.java:287)
at
org.apache.pdfbox.pdfparser.PDFParser.initialParse(PDFParser.java:107)
at org.apache.pdfbox.pdfparser.PDFParser.parse(PDFParser.java:171)
at org.apache.pdfbox.pdfparser.PDFParser.parse(PDFParser.java:136)
at org.apache.pdfbox.Loader.loadPDF(Loader.java:466)
at org.apache.pdfbox.Loader.loadPDF(Loader.java:348)
at org.apache.pdfbox.Loader.loadPDF(Loader.java:282)
at NewClass.main(NewClass.java:31)
Caused by: java.security.InvalidKeyException: Invalid AES key length: 48 bytes
at java.base/com.sun.crypto.provider.AESCrypt.init(AESCrypt.java:90)
at
java.base/com.sun.crypto.provider.ElectronicCodeBook.init(ElectronicCodeBook.java:97)
at
java.base/com.sun.crypto.provider.CipherCore.init(CipherCore.java:591)
at
java.base/com.sun.crypto.provider.CipherCore.init(CipherCore.java:467)
at
java.base/com.sun.crypto.provider.AESCipher.engineInit(AESCipher.java:313)
at java.base/javax.crypto.Cipher.implInit(Cipher.java:837)
at java.base/javax.crypto.Cipher.chooseProvider(Cipher.java:899)
at java.base/javax.crypto.Cipher.init(Cipher.java:1284)
at java.base/javax.crypto.Cipher.init(Cipher.java:1221)
at
org.apache.pdfbox.pdmodel.encryption.StandardSecurityHandler.validatePerms(StandardSecurityHandler.java:327)
> Unable to load password protected pdf
> --------------------------------------
>
> Key: PDFBOX-5866
> URL: https://issues.apache.org/jira/browse/PDFBOX-5866
> Project: PDFBox
> Issue Type: Bug
> Reporter: Charles D
> Priority: Major
> Attachments: pdfbox_invalid_pwd.pdf
>
>
> PDFBox is unable to load password protected pdf. Error is "Invalid AES key
> length: 48 bytes."
> Adobe and qpdf are able to successfully open it , but many other applications
> I've tried are unable to do so.
> The pdf is created by a third party scanner so unfortunately we have no
> insight/control over its creation.
> [^pdfbox_invalid_pwd.pdf] . Please let me know the best way to provide the
> password.
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