Hi,
Btw, you can configure authentication using the authentication-key hash [no need to know the original unencrypted key]:
set snmp v3 usm local-engine user ehsnmpuser authentication-md5 authentication-key <<Hash Key>>
When the authentication is supplied, a hash is computed and compared to the configured hash. If they do not match, authentication fails.
Am not sure what you meant by peer in this snmp config.
Cheers,
Ashvin