[PDFBOX-3756] javax.crypto.BadPaddingException: Given final block not properly padded

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Won't Fix
• Affects Version/s: 2.0.5
• Component/s: Crypto
• Labels: crypto
• Environment: java version "1.8.0_112"; Java(TM) SE Runtime Environment (build 1.8.0_112-b15); Java HotSpot(TM) 64-Bit Server VM (build 25.112-b15, mixed mode)
• Assignee: Unassigned
• Reporter: Esteban Nicolas Ruiz
• Created: 13/Apr/17 13:38
• Updated: 12/Aug/20 17:56
• Resolved: 14/Jun/19 03:55

Description

I get the following stack trace when running:

java -jar pdfbox-app-2.0.5.jar PDFDebugger somefile.pdf

File is properly opened with other viewers, I cannot publish the pdf file due to privacy restrictions.

java.io.IOException: javax.crypto.BadPaddingException: Given final block not properly padded
org.apache.pdfbox.pdmodel.encryption.SecurityHandler.encryptDataAESother(SecurityHandler.java:296)
org.apache.pdfbox.pdmodel.encryption.SecurityHandler.encryptData(SecurityHandler.java:153)
org.apache.pdfbox.pdmodel.encryption.SecurityHandler.decryptStream(SecurityHandler.java:454)
org.apache.pdfbox.pdfparser.COSParser.parseFileObject(COSParser.java:790)
org.apache.pdfbox.pdfparser.COSParser.parseObjectDynamically(COSParser.java:747)
org.apache.pdfbox.pdfparser.COSParser.parseObjectDynamically(COSParser.java:678)
org.apache.pdfbox.pdfparser.COSParser.parseDictObjects(COSParser.java:638)
org.apache.pdfbox.pdfparser.PDFParser.initialParse(PDFParser.java:236)
org.apache.pdfbox.pdfparser.PDFParser.parse(PDFParser.java:271)
org.apache.pdfbox.pdmodel.PDDocument.load(PDDocument.java:984)
org.apache.pdfbox.pdmodel.PDDocument.load(PDDocument.java:922)
org.apache.pdfbox.debugger.PDFDebugger.parseDocument(PDFDebugger.java:1288)
org.apache.pdfbox.debugger.PDFDebugger.readPDFFile(PDFDebugger.java:1209)
org.apache.pdfbox.debugger.PDFDebugger.readPDFFile(PDFDebugger.java:1194)
org.apache.pdfbox.debugger.PDFDebugger.main(PDFDebugger.java:1185)
org.apache.pdfbox.tools.PDFBox.main(PDFBox.java:76)
Caused by: javax.crypto.BadPaddingException: Given final block not properly padded
com.sun.crypto.provider.CipherCore.doFinal(CipherCore.java:989)
com.sun.crypto.provider.CipherCore.doFinal(CipherCore.java:845)
com.sun.crypto.provider.AESCipher.engineDoFinal(AESCipher.java:446)
javax.crypto.Cipher.doFinal(Cipher.java:2048)
org.apache.pdfbox.pdmodel.encryption.SecurityHandler.encryptDataAESother(SecurityHandler.java:276)
org.apache.pdfbox.pdmodel.encryption.SecurityHandler.encryptData(SecurityHandler.java:153)
org.apache.pdfbox.pdmodel.encryption.SecurityHandler.decryptStream(SecurityHandler.java:454)
org.apache.pdfbox.pdfparser.COSParser.parseFileObject(COSParser.java:790)
org.apache.pdfbox.pdfparser.COSParser.parseObjectDynamically(COSParser.java:747)
org.apache.pdfbox.pdfparser.COSParser.parseObjectDynamically(COSParser.java:678)
org.apache.pdfbox.pdfparser.COSParser.parseDictObjects(COSParser.java:638)
org.apache.pdfbox.pdfparser.PDFParser.initialParse(PDFParser.java:236)
org.apache.pdfbox.pdfparser.PDFParser.parse(PDFParser.java:271)
org.apache.pdfbox.pdmodel.PDDocument.load(PDDocument.java:984)
org.apache.pdfbox.pdmodel.PDDocument.load(PDDocument.java:922)
org.apache.pdfbox.debugger.PDFDebugger.parseDocument(PDFDebugger.java:1288)
org.apache.pdfbox.debugger.PDFDebugger.readPDFFile(PDFDebugger.java:1209)
org.apache.pdfbox.debugger.PDFDebugger.readPDFFile(PDFDebugger.java:1194)
org.apache.pdfbox.debugger.PDFDebugger.main(PDFDebugger.java:1185)
org.apache.pdfbox.tools.PDFBox.main(PDFBox.java:76)