i have a s/mime cert with key usage keyEncipherment
I cannot sign with it and i do not know why.
When i open the user preferences it is only shown in encryption
certificates but not in signing certificates.
Has anyone a idea what might be the problem here?
It looks like the certificate does not have an associated private key
(otherwise a green lock symbol would have been shown on the certificate
If you want to digitally sign with a certificate, you need a cert with
a private key.
CipherMail email encryption
Email encryption with support for S/MIME,
OpenPGP, PDF Messenger and Webmail Messenger