3. IDENTIFICATION AND AUTHENTICATION

3.1. Initial Registration

3.2. Routine Rekey

After certificate expiration, the CA MUST NOT issue a new certificate for the same key. The CA MAY issue a new certificate for a new key. The rekey authentication MAY be accomplished with the same procedure indicated in Section 3.1 for initial registration or using requests digitally signed with the old certificate. These requests MUST be sent to the CA before the old certificate expiration.

3.3. Rekey after Revocation

A public key whose certificate has been revoked for private key compromise MUST NOT be re-certified. The public key MAY be re-certified if the revocation is only due to certificate suspension. In the latter case the rekey authentication MAY be accomplished with the same procedure indicated in Section 3.1 for initial registration or using digitally signed requests. These requests MUST be sent to the CA before certificate expiration.

3.4. Revocation Request

A proper authentication method is required in order to accept revocation request. The CA MUST accept as a revocation request a message digitally signed with a not expired and not previously revoked certificate issued under this policy. The same procedures adopted for the authentication during initial registration are also considered suitable. Alternative procedures MAY be supported such as secure communication of a revocation passphrases.

The exact procedures supported MUST be detailed in the CPS.