Abstract: A method for generating a random number, applied in a random number generator coupled to a flash memory is disclosed. the method comprises: selecting a plurality of cells from the flash memory; initializing the selecting cells of the flash memory; programming the selecting cells to obtain a plurality of first potential values of the selecting cells; re-initializing the selecting cells of the flash memory; re-programming the selecting cells to obtain a plurality of second potential values of the selecting cells; and processing the first potential values and the second potential values according to a predetermined algorithm to generating the random number.

Abstract: A memory control device includes a memory and a controller. The memory includes a plurality of memory blocks. The controller is coupled to the memory and configured to select a first memory block from the memory blocks and program data into the first memory block. When the memory control device is deactivated and re-activated, the controller is further configured to read a voltage distribution of the first memory block to determine a deactivation interval, and determine a reference time according to the deactivation interval and an initial time, and the voltage distribution of the first memory block correspond to the data.

Abstract: A method for generating a security feature of a flash memory includes determining a memory block from a plurality of memory blocks in the flash memory; erasing data of the determined memory block of the flash memory; providing a predetermined voltage to the determined memory block to obtain a plurality of corresponding threshold voltages of a plurality of cells in the determined memory block, wherein each of the corresponding threshold voltages corresponds to a characteristic of each cell in the determined memory block; and establishing a security feature based on the plurality of corresponding threshold voltages.

Abstract: A method for generating a security feature of a flash memory includes determining a memory block from a plurality of memory blocks in the flash memory; erasing data of the determined memory block of the flash memory; providing a predetermined voltage to the determined memory block to obtain a plurality of corresponding threshold voltages of a plurality of cells in the determined memory block, wherein each of the corresponding threshold voltages corresponds to a characteristic of each cell in the determined memory block; and establishing a security feature based on the plurality of corresponding threshold voltages.

Abstract: A method for generating a random number, applied in a random number generator coupled to a flash memory is disclosed. the method comprises: selecting a plurality of cells from the flash memory; initializing the selecting cells of the flash memory; programming the selecting cells to obtain a plurality of first potential values of the selecting cells; re-initializing the selecting cells of the flash memory; re-programming the selecting cells to obtain a plurality of second potential values of the selecting cells; and processing the first potential values and the second potential values according to a predetermined algorithm to generating the random number.

Abstract: A memory control device includes a memory and a controller. The memory includes a plurality of memory blocks. The controller is coupled to the memory and configured to select a first memory block from the memory blocks and program data into the first memory block. When the memory control device is deactivated and re-activated, the controller is further configured to read a voltage distribution of the first memory block to determine a deactivation interval, and determine a reference time according to the deactivation interval and an initial time, and the voltage distribution of the first memory block correspond to the data.

Abstract: A memory control device includes a memory and a controller. The memory includes a plurality of memory blocks. The controller is coupled to the memory and configured to select a first memory block from the memory blocks and program data into the first memory block. When the memory control device is deactivated and re-activated, the controller is further configured to read a voltage distribution of the first memory block to determine a deactivation interval, and determine a reference time according to the deactivation interval and an initial time, and the voltage distribution of the first memory block correspond to the data.

Abstract: A memory control device includes a memory and a controller. The memory includes a plurality of memory blocks. The controller is coupled to the memory and configured to select a first memory block from the memory blocks and program data into the first memory block. When the memory control device is deactivated and re-activated, the controller is further configured to read a voltage distribution of the first memory block to determine a deactivation interval, and determine a reference time according to the deactivation interval and an initial time, and the voltage distribution of the first memory block correspond to the data.

Abstract: An extending device includes a first interface unit, at least one second interface unit and a control circuit. The first interface unit is coupled to controller, the at least one second interface unit is coupled to at least one memory, and the control circuit is coupled between the first interface unit and the at least one second interface unit. The first interface unit is configured to receive a control command sent by the controller. The control circuit is configured to interpret the control command, and to control the at least one second interface unit to execute a corresponding action according to the control command.