摘要:
A random number generating apparatus and method for generating a metastable state signal by using logic gates include a metastable state generating unit generating and outputting a metastable state signal; an amplifying unit receiving the metastable state signal from the metastable state generating unit, amplifying the received metastable state signal, and outputting the amplified metastable state signal; and a sampling unit receiving the amplified metastable state signal and a sampling clock, and sampling and outputting the amplified metastable state signal according to the sampling clock.
摘要:
A random number generating apparatus and method for generating a metastable state signal by using logic gates include a metastable state generating unit generating and outputting a metastable state signal; an amplifying unit receiving the metastable state signal from the metastable state generating unit, amplifying the received metastable state signal, and outputting the amplified metastable state signal; and a sampling unit receiving the amplified metastable state signal and a sampling clock, and sampling and outputting the amplified metastable state signal according to the sampling clock.
摘要:
Provided is a random number generator including: a clock generator outputting first and second control signals; a ring oscillator (RO) block receiving a meta stable voltage and performing an oscillation operation using the meta stable voltage in response to the first control signal; and a sampling unit sampling an output signal according to the oscillation operation in response to the second control signal.
摘要:
Provided is a random number generator including: a clock generator outputting first and second control signals; a ring oscillator (RO) block receiving a meta stable voltage and performing an oscillation operation using the meta stable voltage in response to the first control signal; and a sampling unit sampling an output signal according to the oscillation operation in response to the second control signal.
摘要:
A random number generator includes a signal generator and a sampling unit. The signal generator is configured to generate an alternating sequence of metastable seed signals and oscillating signals during respective first and second half-periods of a clock signal. The oscillating signals having respective phases determined by corresponding ones of the metastable seed signals in the alternating sequence. The sampling unit is configured to detect a logic value of each consecutive oscillating signal during a portion of a respective half-period of the clock signal. The signal generator may be responsive to the clock signal and the sampling unit may be responsive to a delayed version of the clock signal.
摘要:
A random number generator includes a signal generator and a sampling unit. The signal generator is configured to generate an alternating sequence of metastable seed signals and oscillating signals during respective first and second half-periods of a clock signal. The oscillating signals having respective phases determined by corresponding ones of the metastable seed signals in the alternating sequence. The sampling unit is configured to detect a logic value of each consecutive oscillating signal during a portion of a respective half-period of the clock signal. The signal generator may be responsive to the clock signal and the sampling unit may be responsive to a delayed version of the clock signal.
摘要:
A key enrollment method of a physically unclonable function (PUF) circuit including a plurality of PUF cells includes receiving a first level key from PUF cells, performing bit encoding on the first level key using a bit coding table based on Hamming weights of a plurality of bits in the first level key to generate a second level key, storing first helper data associated with the second level key in a non-volatile memory, performing block encoding on the second level key using an error correction code to generate a third level key, and storing second helper data associated with the third level key in the non-volatile memory.