Unauthenticated Access

pki allows unauthenticated access. The certificate authority allowed unauthenticated users to request the one-time PIN in an SCEP request to be decrypted. An attacker able to sniff an SCEP request from a network device could request the certificate authority to decrypt the request, allowing them to obtain the one-time PIN. With this update, the certificate authority only handles decryption requests from authenticated registration authorities.