Requests the user's initial certificate. The request is authenticated using the reference number and the corresponding key (PSK) received from the CA or RA using some out-of-band mechanism.
The user must specify the PSK, the asymmetric key pair, and a subject name.
Requests a new certificate when the user already has a valid certificate for the key. This request is similar to
initialize except that it is authenticated using public-key methods.
Polls for a certificate when a request was not immediately accepted.
Requests an update of an existing certificate (replacement). The issued certificate will be similar to the existing certificate (names, flags, and other extensions). The user can change the key, and the validity times are updated by the CA. This request is authenticated by a valid existing key pair and a certificate.
Requests recovery of a backed-up key. This request is authenticated either by PSK-based or certificate-based authentication. The template describes the certificate whose private key has already been backed up and should be recovered. Users can only recover keys they have backed up themselves.
Requests revocation for a key specified in the template. Authentication of the request is made using a PSK or a certificate belonging to the same user as the subject of revocation.
Operates in RA tunnel mode. Reads requests and optionally modifies the subject name, alternative names, and extensions based on the command line. Approves the request and sends it to the CA.