certificate update

The act or process by which non-key data items bound in an existing public-key certificate, especially authorizations granted

to the subject, are changed by issuing a new certificate. (See: certificate rekey, certificate renewal.)

Usage: For an X.509 public-key certificate, the essence of this process is that fundamental changes are made in the data that is bound to the public key, such that it is necessary to revoke the old certificate. (Otherwise, the process is only a "certificate rekey" or "certificate renewal".)