Hi,
decryption/encryption using BC 1.46 an iText 5.2.1 is working fine. Encryption
using BC 1.49 and iText 5.4.2 is working fine, but decrypting throws :
com.itextpdf.text.exceptions.InvalidPdfException: cannot create cipher: No such
algorithm: 1.2.840.113549.3.2
at com.itextpdf.text.pdf.PdfReader.readPdf(PdfReader.java:649)
at com.itextpdf.text.pdf.PdfReader.<init>(PdfReader.java:187)
at com.itextpdf.text.pdf.PdfReader.<init>(PdfReader.java:265)
at
org.btrust.pdfencryption.PDFEncryption.decrypt(PDFEncryption.java:90)
at
org.btrust.pdfencryption.DecryptPDFOnePanel.button4ActionPerformed(DecryptPDFOnePanel.java:415)
at
org.btrust.pdfencryption.DecryptPDFOnePanel.access$5(DecryptPDFOnePanel.java:324)
at
org.btrust.pdfencryption.DecryptPDFOnePanel$7.actionPerformed(DecryptPDFOnePanel.java:744)
at javax.swing.AbstractButton.fireActionPerformed(Unknown
Source)
at javax.swing.AbstractButton$Handler.actionPerformed(Unknown
Source)
at javax.swing.DefaultButtonModel.fireActionPerformed(Unknown
Source)
at javax.swing.DefaultButtonModel.setPressed(Unknown Source)
at
javax.swing.plaf.basic.BasicButtonListener.mouseReleased(Unknown Source)
at java.awt.Component.processMouseEvent(Unknown Source)
at javax.swing.JComponent.processMouseEvent(Unknown Source)
at java.awt.Component.processEvent(Unknown Source)
at java.awt.Container.processEvent(Unknown Source)
at java.awt.Component.dispatchEventImpl(Unknown Source)
at java.awt.Container.dispatchEventImpl(Unknown Source)
at java.awt.Component.dispatchEvent(Unknown Source)
at java.awt.LightweightDispatcher.retargetMouseEvent(Unknown
Source)
at java.awt.LightweightDispatcher.processMouseEvent(Unknown
Source)
at java.awt.LightweightDispatcher.dispatchEvent(Unknown Source)
at java.awt.Container.dispatchEventImpl(Unknown Source)
at java.awt.Window.dispatchEventImpl(Unknown Source)
at java.awt.Component.dispatchEvent(Unknown Source)
at java.awt.EventQueue.dispatchEventImpl(Unknown Source)
at java.awt.EventQueue.access$200(Unknown Source)
at java.awt.EventQueue$3.run(Unknown Source)
at java.awt.EventQueue$3.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at
java.security.ProtectionDomain$1.doIntersectionPrivilege(Unknown Source)
at
java.security.ProtectionDomain$1.doIntersectionPrivilege(Unknown Source)
at java.awt.EventQueue$4.run(Unknown Source)
at java.awt.EventQueue$4.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at
java.security.ProtectionDomain$1.doIntersectionPrivilege(Unknown Source)
at java.awt.EventQueue.dispatchEvent(Unknown Source)
at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown
Source)
at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown
Source)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown
Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.run(Unknown Source)
I debugged it down to EnvelopedDataHelper.createCipher(ASN1ObjectIdentifier
algorithm); In my case the algorithm is 1.2.840.113549.3.2.
This value comes from the very beginning (I guess at the time of encryption),
from the encrypted document as "messageAlgorithm", as well as "keyEncAlg" which
in my case is 1.2.840.113549.1.1.1.
On line 179 it tries to find this algorithm from HashMap, but there is no such
algorithm. So it tries directly Cipher.getInstance("1.2.840.113549.3.2",
pkcs11prov); but it fails.
Yes, I know this is in BC code, but the algorithm strings come from iText code.
What should I do?
Best Regards, Valentin
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