$ certtool --to-p12 --load-privkey user-key.pem --pkcs-cipher arcfour --load-certificate user-cert.pem --outfile user.p12 use this can't import to iso client
$ certtool --to-p12 --load-privkey user-key.pem --pkcs-cipher arcfour --load-certificate user-cert.pem --outfile user.p12 use this can't import to iso client