Invention Grant
- Patent Title: PUF-IPA: a PUF-based identity preserving lightweight authentication protocol using binary string shuffling
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Application No.: US17296863Application Date: 2019-11-21
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Publication No.: US11700136B2Publication Date: 2023-07-11
- Inventor: Mahmood Azhar Qureshi , Arslan Munir
- Applicant: Kansas State University Research Foundation
- Applicant Address: US KS Manhattan
- Assignee: Kansas State University Research Foundation
- Current Assignee: Kansas State University Research Foundation
- Current Assignee Address: US KS Manhattan
- Agency: Hovey Williams LLP
- International Application: PCT/US2019/062582 2019.11.21
- International Announcement: WO2020/112484A 2020.06.04
- Date entered country: 2021-05-25
- Main IPC: H04L9/32
- IPC: H04L9/32 ; H04L9/06

Abstract:
A computer-implemented method for authentication of a queried device having an electrical circuit exhibiting physically unclonable functions (PUFs). The method includes: at the queried device, generating a first random number based on an initial first counter value; matching the first random number against a first value of a record stored in a database of a querying device, the record including second (shuffled) and third values; at the queried device, generating a second random number based on a once incremented first counter value, deterministically generating a de-shuffled second value based on an initial second counter value, determining that the second random number matches the de-shuffled second value, and submitting sub-challenges corresponding to the second random number to the electrical circuit to generate a response; and, at the querying device, determining that the response matches the third value of the record to complete a first authentication of the queried device.
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