Abstract:
An apparatus and method that prevent a bit error in a static random access memory (SRAM)-based Physically Unclonable function (PUF). The method for preventing an error in a PUF includes selecting any value, from a physically unclonable function based on a volatile memory device, as an input value, and checking a response corresponding to the selected input value, classifying cells having a plurality of bits corresponding to the response depending on frequency of error occurrence, calculating a number of white cells, in which an error does not occur, from classified results, and determining whether the number of white cells is greater than a preset threshold number of white cells, and selecting an input value of the physically unclonable function based on results of determination.
Abstract:
An apparatus and method for remotely deleting critical information is provided. The apparatus includes a storage unit, an identity determination unit, and a broadcast unit. The storage unit stores an input value and an output value for the input value with respect to a physically unclonable function (PUF) of each of a plurality of mobile terminals. The identity determination unit determines the identity of a corresponding mobile terminal based on received information about the loss of the mobile terminal. The broadcast unit extracts the input and output values of the PUF of the corresponding mobile terminal from the storage unit based on information transferred from the identity determination unit, and broadcasts the extracted input and output values to all the mobile terminals.
Abstract:
A method and apparatus for controlling the operation of flash memory are provided. The apparatus for controlling the operation of flash memory includes a control unit and a voltage adjustment unit. The control unit outputs a control signal adapted to change one or more of the program, erase and read voltage conditions for the flash memory to the voltage adjustment unit in response to the input of a PUF mode selection signal. The voltage adjustment unit changes the one or more of the program, erase and read voltage conditions for the flash memory in response to the input of the control signal.