Patent ID: 11929142
Assignee: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 0:
1. An apparatus for hardware metering using a memory-type camouflaged cell, comprising:
memory including multiple memory cells, at least one of which is a camouflaged memory cell in which a key is hidden by a designer in advance, the at least one camouflaged memory cell being identified by the designer only; and
a controller configured to control whether to block supply of power to the memory,
wherein the controller is further configured to perform:
reading the hidden key from a key location among the multiple memory cells of the memory based on key location information stored in the controller when a key is input from an outside;
determining whether the key input from the outside is identical to the key read from the memory;
setting an authentic flag based on a determination result; and
performing control based on the set authentic flag such that the memory operates normally or such that the supply of power is blocked and the memory is commercially unavailable.