APPARATUS AND METHOD OF VERIFYING ONLINE CERTIFICATE FOR OFFLINE DEVICE

摘要

An apparatus and a method are provided for verifying an online certificate for an offline device. The apparatus includes a nonce generation unit which generates a nonce and a certificate verification request message that requests verification of a certificate on a target online device subject to authentication, wherein the certificate verification request message includes the generated nonce; a transmitting and receiving unit which transmits the certificate verification request to an online device and receives an online certificate status protocol (OCSP) response message from the online device; and a certificate verification result determination unit which extracts a nonce from the OCSP response and compares the extracted nonce with the nonce generated by the nonce generation unit to determine whether the OCSP response is reliable.