公开(公告)号：US11722298B2

公开(公告)日：2023-08-08

申请号：US17020895

申请日：2020-09-15

Applicant: GLOBALFOUNDRIES U.S. INC.

Inventor： Romain H. A. Feuillette ,  David C. Pritchard ,  Bernhard J. Wunder ,  Elizabeth Strehlow

IPC: H04L9/08 ,  H04L9/32

CPC classification number: H04L9/0869 ,  H04L9/0825 ,  H04L9/0894 ,  H04L9/3278 ,  H04L9/3297 ,  H04L2209/12

Abstract: Methods and systems generate seeds for public-private key pairs by determining a timestamp value associated with a process design kit (PDK) when a user of the PDK triggers a tool of the PDK while designing an integrated circuit device to have a physical unclonable function device (PUF). The methods and systems generate a first value by mapping the timestamp value to data of the user, generate a second value by mapping the timestamp value to configuration data of the PDK, and generate a third value by mapping the timestamp value to layout data of the PDK. A random number is then generated by applying a function to the first value, the second value, and the third value. A public-private encryption key pair is generated using the random number as a first seed number and using a second number generated by the number generation device as a second seed number.