pdfbox-users mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From Maruan Sahyoun <sahy...@fileaffairs.de>
Subject Re: Problem while decrypting a pdf file in Linux
Date Fri, 09 Jan 2015 09:00:03 GMT
Hi,

could you try using PDFBox 1.8.8 as this should have been addressed there [https://issues.apache.org/jira/browse/PDFBOX-2522]

BR

Maruan Sahyoun

Am 09.01.2015 um 09:55 schrieb Barry Zhao [Zhao] <zhazhao@tibco-support.com>:

> Hi team,
> 
> I use PDFBox V1.8.7. 
> In Windows, it can work well.
> When I run my code in Linux, I got the exception below:
> java.io.IOException: javax.crypto.IllegalBlockSizeException: Input length must be multiple
of 16 when decrypting with padded cipher
> 	at javax.crypto.CipherInputStream.getMoreData(CipherInputStream.java:115)
> 	at javax.crypto.CipherInputStream.read(CipherInputStream.java:233)
> 	at javax.crypto.CipherInputStream.read(CipherInputStream.java:209)
> 	at org.apache.pdfbox.pdmodel.encryption.SecurityHandler.encryptData(SecurityHandler.java:316)
> 	at org.apache.pdfbox.pdmodel.encryption.SecurityHandler.decryptString(SecurityHandler.java:486)
> 	at org.apache.pdfbox.pdmodel.encryption.SecurityHandler.decrypt(SecurityHandler.java:386)
> 	at org.apache.pdfbox.pdmodel.encryption.SecurityHandler.decryptDictionary(SecurityHandler.java:466)
> 	at org.apache.pdfbox.pdmodel.encryption.SecurityHandler.decrypt(SecurityHandler.java:394)
> 	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:1595)
> 	at org.apache.pdfbox.pdmodel.PDDocument.decrypt(PDDocument.java:942)
> 	 .....etc.
> 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:1970)
> 	at javax.crypto.CipherInputStream.getMoreData(CipherInputStream.java:112)
> 
> And my code is :
> PDDocument doc = PDDocument.load(originFile);
> 		
> 		if (doc.isEncrypted())
> 		{
> 			try
> 			{
> 				DecryptionMaterial dm = new StandardDecryptionMaterial("");
> 				doc.openProtection(dm);
> 				doc.setAllSecurityToBeRemoved(true);
> 			}
> 			catch (Exception cre) {
> 				cre.printStackTrace();
> 			}
> 		}
> 
> And my jre version is 1.7.
> I use the attachment file to do the operation.
> 
> Please help me to figure out the problem or do you guys have workarounds for this?
> Many thanks.
> 
> Best wishes,
> Barry


Mime
  • Unnamed multipart/alternative (inline, None, 0 bytes)
View raw message