Hi,
I have a pdf file signed with Elliptic curve Digital Signature Algorithm (DSA)
coupled with the Secure Hashing Algorithm (SHA256) algorithm (oid:
1.2.840.10045.4.3.2) .
When I try and verify the signature with this code (iText 5.5.9):
PdfPKCS7 pk = af.verifySignature(name, "BC");
I get the following:
no such algorithm: SHA256with1.2.840.10045.4.3.2 for provider BC
Is it a wanted feature that itext does not support SHA256withECDSA?
When I modify com.itextpdf.text.pdf.security.EncryptionAlgorithms class with:
algorithmNames.put("1.2.840.10045.4.1", "ECDSA");
algorithmNames.put("1.2.840.10045.4.3.2", "ECDSA");
algorithmNames.put("1.2.840.10045.4.3.3", "ECDSA");
algorithmNames.put("1.2.840.10045.4.3.4", "ECDSA");
it seems to work.
I wonder whether this solution is correct.
Will iText support SHA256withECDSA in future?
Best regards
Alfonso
AVVISO DI RISERVATEZZA Informazioni riservate possono essere contenute nel
messaggio o nei suoi allegati. Se non siete i destinatari indicati nel
messaggio, o responsabili per la sua consegna alla persona, o se avete ricevuto
il messaggio per errore, siete pregati di non trascriverlo, copiarlo o inviarlo
ad alcuno. In tal caso vi invitiamo a cancellare il messaggio ed i suoi
allegati. Grazie.
CONFIDENTIALITY NOTICE Confidential information may be contained in this
message or in its attachments. If you are not the addressee indicated in this
message, or responsible for message delivering to that person, or if you have
received this message in error, you may not transcribe, copy or deliver this
message to anyone. In that case, you should delete this message and its
attachments. Thank you.
------------------------------------------------------------------------------
What NetFlow Analyzer can do for you? Monitors network bandwidth and traffic
patterns at an interface-level. Reveals which users, apps, and protocols are
consuming the most bandwidth. Provides multi-vendor support for NetFlow,
J-Flow, sFlow and other flows. Make informed decisions using capacity planning
reports.http://sdm.link/zohodev2dev
_______________________________________________
iText-questions mailing list
iText-questions@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/itext-questions
iText(R) is a registered trademark of 1T3XT BVBA.
Many questions posted to this list can (and will) be answered with a reference
to the iText book: http://www.itextpdf.com/book/
Please check the keywords list before you ask for examples:
http://itextpdf.com/themes/keywords.php
