[PDFBOX-2471] AES encryption failing to write Acroform field names and values

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 1.8.7, 1.8.8, 2.0.0
• Fix Version/s: 1.8.8, 2.0.0
• Component/s: AcroForm, Writing
• Labels: AES256 AcroForm
• Assignee: Unassigned
• Reporter: Stephen Hendrix
• Created: 31/Oct/14 19:58
• Updated: 13/Dec/14 14:15
• Resolved: 17/Nov/14 07:50

Description

When writing a PDF using AES 256 bit encryption, the field names / values from the Acroform are not being persisted correctly. If I encrypt using RC4 128 bit, they are persisted correctly. I am using snapshot pdfbox:2.0.0-20141023.180319-636.

I dug into this, and it looks to me the problem is with COSWriter.visitFromString, which invokes SecurityHandler.decryptString (there is no SecurityHandler.encryptString).

Issue Links

• relates to: PDFBOX-2469 javax.crypto.BadPaddingException in PDFBox 1.8.8-SNAPSHOT