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Posted to dev@pdfbox.apache.org by "Tilman Hausherr (JIRA)" <ji...@apache.org> on 2016/06/27 16:05:52 UTC
[jira] [Comment Edited] (PDFBOX-3402) BadPaddingException while
decrypting file
[ https://issues.apache.org/jira/browse/PDFBOX-3402?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15351315#comment-15351315 ]
Tilman Hausherr edited comment on PDFBOX-3402 at 6/27/16 4:05 PM:
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Please attach the PDF file where this happens; also retest with the current version (2.0.2) just to be sure.
was (Author: tilman):
Please attach the PDF file where this happens.
> BadPaddingException while decrypting file
> ------------------------------------------
>
> Key: PDFBOX-3402
> URL: https://issues.apache.org/jira/browse/PDFBOX-3402
> Project: PDFBox
> Issue Type: Bug
> Components: Crypto
> Affects Versions: 2.0.1
> Reporter: Arjun Kaushal
>
> Here I am getting issue while trying decrypt file using PDFBox
> ----
> java.io.IOException: javax.crypto.BadPaddingException: Given final block not properly padded
> at org.apache.pdfbox.pdmodel.encryption.SecurityHandler.encryptDataAESother(SecurityHandler.java:291)
> at org.apache.pdfbox.pdmodel.encryption.SecurityHandler.encryptData(SecurityHandler.java:152)
> at org.apache.pdfbox.pdmodel.encryption.SecurityHandler.decryptStream(SecurityHandler.java:449)
> at org.apache.pdfbox.pdfparser.COSParser.parseFileObject(COSParser.java:764)
> at org.apache.pdfbox.pdfparser.COSParser.parseObjectDynamically(COSParser.java:721)
> at org.apache.pdfbox.pdfparser.COSParser.parseObjectDynamically(COSParser.java:652)
> at org.apache.pdfbox.pdfparser.COSParser.parseDictObjects(COSParser.java:612)
> at org.apache.pdfbox.pdfparser.PDFParser.initialParse(PDFParser.java:215)
> at org.apache.pdfbox.pdfparser.PDFParser.parse(PDFParser.java:249)
> at org.apache.pdfbox.pdmodel.PDDocument.load(PDDocument.java:972)
> at org.apache.pdfbox.pdmodel.PDDocument.load(PDDocument.java:908)
> ----
> {code:title=Decryptor.java}
> String oPasswd = oPassword + OWNER_PDF_ENCRYTPION_KEY_SUFFIX;
> String uPasswd = uPassword;
> try {
> PDDocument doc = PDDocument.load(new FileInputStream(src));
> AccessPermission ap = new AccessPermission();
> ap.setCanPrint(true);
>
> // owner password (to open the file with all permissions) is "12345"
> // user password (to open the file but with restricted permissions, is empty here)
> StandardProtectionPolicy spp = new StandardProtectionPolicy(oPasswd, uPasswd, ap);
> spp.setEncryptionKeyLength(PDF_ENCRYPTOPN_KEY_LENGTH);
> spp.setPermissions(ap);
> doc.protect(spp);
> doc.save(dest);
> doc.close();
> return true;
> } catch (IOException ioe) {
> logger.error("Encryptor.encryptPDF ERROR IOException ", ioe);
> } catch (Exception e) {
> logger.error("Encryptor.encryptPDF ERROR IOException ", e);
> }
> {code}
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