| 摘要 |
A method for managing a certificate by a cloud storage server according to the present invention comprises: step (1) of generating a sand box by a cloud storage server; step (2) of generating a certificate encryption key; and step (3) of encrypting the certificate with the certificate encryption key and uploading the certificate to the sand box of the cloud storage server by a certificate client, wherein step (2) includes step (2-1) of transmitting a first seed value to the certificate client by one of a device authentication server and the cloud storage server; step (2-2) of requesting a second seed value from the other of the device authentication server and the cloud storage server by the certificate client; step (2-3) of transmitting the second seed value to the certificate client by the other of the device authentication server and the cloud storage server; and step (2-4) of generating the certificate encryption key based on the first seed value and the second seed value by the certificate client. |
