US Patent 11050574 Authentication based on physically unclonable functions

A method and system for authenticating a device is provided. A noisy response is received from a physically unclonable function for a challenge. An error code is generated for correcting the noisy first response. An expected response is generated from the noisy first response and the error code. The expected response and corresponding first helper data is store. The helper data includes the first challenge and the error code. The helper data is provided to a device in response to an authentication request from the device, the first device including the physically unclonable function.