Patent ID: 9678760
Date: 2017-06-13
CPC Classifications: G06F

Claim:
1. A memory card comprising: a nonvolatile memory configured to store data; and a device controller configured to divide the nonvolatile memory into a plurality of logical units and to store an authentication program at a partial area of the plurality of logical units, wherein when connected with a host, the device controller is configured to enable the authentication program to be executable on the host, wherein the plurality of logical units have one or more boot partitions, the partial area corresponds to one of the one or more boot partitions, and the authentication program is stored at the partial area, wherein the device controller is used as a security manager configured to send the authentication program to the host using authentication information about the authentication program included in a device descriptor to manage the authentication program, wherein the security manager stores authentication information about the authentication program to the device descriptor, and wherein the device descriptor includes an authentication existence field for identifying whether the authentication program exists or not.