Patent ID: 11886734
Assignee: INFOKEYVAULT TECHNOLOGY CO., LTD.
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 5:
6. A secure memory card, comprising:
a non-volatile memory device for storing data, including a regular range of addresses and a reserved range of addresses;
a secure element for conducting a securing operation; and
a non-volatile memory controller in communication with the non-volatile memory device and the secure element, adapted to receive a command from a host,
wherein the non-volatile memory controller interacts with the secure element to conduct the securing operation in response to the command from the host if the command from the host is secure-element control command, which is a single command taking a single instruction cycle and corresponding to a specific address belonging to the reserved range of addresses, and the non-volatile memory controller interacts with the non-volatile memory device while having no interaction with the secure element in response to the command from the host if the command from the host is a non-secure-element control command corresponding to a regular address belonging to the regular range of addresses, and
wherein when the secure-element control command is a data access command taking a single instruction cycle and corresponding to a sixth specific address belonging to the reserved range of addresses and dynamically selected from a group consisting of a plurality of multi-bit digits, which comply with a specific formula, the securing operation is that a firmware of the non-volatile memory controller recognizing the sixth specific address performs data access to the sixth specific address.