SNMP V3 feature request

Hi

For the scripted environments, the authPriv option in v3 requires the
passphrases to be given along with other options of the snmp commands
(snmpget, snmpwalk etc). So whoever gains access to scripts, they are
able to intercept the credentials. To prevent incidents like this,
along with existing options, can we have some public/private key based
or ssl/tls certificates based encryption added as well? because
private keys will always have 400 perms, it is much safer than passing
passphrases along with other options.

Thanks
Pavan