Skip to Content
Find More Like This
Return to Search

SECURE TRUE RANDOM NUMBER GENERATION USING 1.5-T TRANSISTOR FLASH MEMORY

United States Patent Application

20170090873
A1
View the Complete Application at the US Patent & Trademark Office
This disclosure relates generally to physically unclonable function (PUF) circuitry along with methods of generating numbers. In one embodiment, the PUF circuitry includes a memory, a memory control circuitry, and whitening circuitry. To reduce or eliminate the systematic bias from the array, whitening circuitry is configured to generate a random number comprising random number bits in response to the memory control circuit implementing at least one sequence of memory cycles on the array of the memory cells in the memory. The whitening circuitry is configured to provide the random number bits of the random number based on the variable bit states stored by the array of the memory cells. On average the whitening circuitry is configured to provide approximately half of the random number bits in the first bit state and half of random number bits in a second bit state.
Clark, Lawrence T. (Phoenix, AZ), Adams, James (Phoenix, AZ), Holbert, Keith E. (Gilbert, AZ)
Arizona Board of Regents on behalf of Arizona State University (Scottsdale AZ)
15/ 276,087
September 26, 2016
GOVERNMENT SUPPORT [0002] This invention was made with government support under DE-NE0000679 awarded by the Department of Energy. The government has certain rights in the invention.