Is PKCS#1 V2.0 implemented for Java?

Question

I need encrypt data using exactly the PKCS#1 V2.0 encryption method (defined in item 7.2.1 of the PKCS#1V2 specification).

Is it already implemented for Java?

I'm thinking in something like just pass a parameter to javax.crypto.Cipher specifying "PKCS#1V2", I wonder if there is something like this?

Rasmus Faber · Accepted Answer · 2010-06-09T09:41:06.567

8

PKCS#1 v2.0 encryption is usually called OAEP encryption. So:

Cipher.getInstance("RSA/ECB/OAEPWithSHA1AndMGF1Padding");

The place to look is the Java Cryptography Architecture documents: Standard Algorithm Name Documentation or Sun Providers Documentation.

As you can see the SunJCE provider supports the following variations of OAEP:

edited Jun 09 '10 at 09:41

answered Jun 01 '10 at 21:20

Rasmus Faber

1

Sun Providers Documentation, yes, Standard Algorithm Name Docs, no. Sun does not promise to implement everything they have reserved a name for. As an example, the "ECIES" algorithm name is reserved, but no Sun provider implements it. – President James K. Polk Jun 01 '10 at 22:23
2

The Standard Algorithm Name Documentation helps you find the correct name instead of "PKCS#1V2". The Sun Providers Documentation helps you find out whether the Sun provider implements it or if you should try to find another provider. – Rasmus Faber Jun 02 '10 at 05:12
@RasmusFaber Looks like OAEP (Optimal Asymmetric Encryption Padding) it's just the padding definition. Is PKCS1V2 just about padding? – The Student Jun 02 '10 at 14:15
@Tom Brito: Why don't read the spec for yourself? http://www.rfc-editor.org/cgi-bin/rfcdoctype.pl?loc=RFC&letsgo=3447&type=http&file_format=txt – President James K. Polk Jun 02 '10 at 15:27
I didn't found this names, but found XMLCipher.RSA_OAEP in apache commons, that is the same thing. Anyway, thanks! – The Student Jun 11 '10 at 17:40

1 Answers1