公开(公告)号：US11991297B2

公开(公告)日：2024-05-21

申请号：US17284576

申请日：2019-01-31

Applicant: Nokia Solutions and Networks Oy

Inventor： Dimitrios Schoinianakis ,  Ian Justin Oliver

IPC: H04L9/32 ,  H04L9/08

CPC classification number: H04L9/3278 ,  H04L9/0822 ,  H04L9/085 ,  H04L9/321 ,  H04L9/3242

Abstract: According to an example aspect of the present invention, there is provided a cryptoprocessor comprising physical unclonable function circuitry comprising at least one physical unclonable function, and at least one processing core configured to process a challenge received from outside the cryptoprocessor by at least deriving a response to the challenge by providing the challenge as input to the physical unclonable function circuitry, using the response as an encryption key to encrypt a second encryption key, and by causing the encrypted second encryption key to be provided to a party which issued the challenge.