Use of a Physical Unclonable Function for Checking Authentication

摘要

In order to check authentication using a physical unclonable function, an authenticator includes a physical unclonable function (PUF) and an authentication checking function. A challenge response pair provides challenge information and a response for the authenticator. The challenge information is used as an input for the PUF, which generates a PUF response in response to the input of the challenge information. The PUF response and the response are used for a comparison, wherein an enable signal is provided on the basis of a result of the comparison.

主权项

1. A method for checking authentication of an authentication object using an authenticator comprising a physical unclonable function (PUF) and an authentication checking function, the method comprising:
providing at least one challenge-response pair for the authenticator, the challenge-response pair comprising challenge information and a response, the response being made available to the authenticator by the authentication object; using the challenge information as an input for the PUF, which generates a PUF response in response to the input of the challenge information; using the PUF response and the response for a comparison, an enable signal being provided on the basis of a result of the comparison.