Environment: JBoss-4.2.1.GA Java 1.5.0_11 OpenSSL 0.9.8g Is there a way to set Netscape Cert Type property to SSL Client while exporting it to PKCS12 certificate using OpenSSL? I created a client certificate using the following steps: a. Generated key pair using Keytool b. Generated CSR and got it signed by the CA (Verisign) c. Imported signed certificate and all Root + Intermediate authorities in client keystore for proper certificate chaining d Exported private key from the keystore e. Used OpenSSL command to export pkcs12 certificate: openssl pkcs12 - export -out client.p12 -inkey client.pem -in client.cer - passout pass:********* This certificate gets installed in both IE and Firefox successfully, however the Netscape Cert Type attribute shows: SSL Server Authentication This causes the following exception on the server side (Sun JVM) when passed through the browser: javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: Netscape cert type does not permit use for SSL client When I used a another pkcs12 certificate generated by IIS, that worked fine as its Netscape Cert Type attribute was set correctly to SSL Client. I came across nscerttype attribute but it seems it's only applicable to openssl commands: ca, req and x509. TIA View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4139734#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...