{"id":{"repo_id":"uiuc","oai_identifier":"oai:www.ideals.illinois.edu:2142/46931"},"canonical_url":"https://search.dev.ndltd.org/etd/uiuc/oai:www.ideals.illinois.edu:2142/46931","repository":{"repo_id":"uiuc","name":"University of Illinois - Urbana-Champaign","base_url":"https://www.ideals.illinois.edu/oai-pmh"},"display":{"title":"A system for multi-level authentication with physically unclonable functions","abstract":"We analyze deficiencies in existing Physically Unclonable Function (PUF) systems and protocols, and propose a new system of PUFs (SoP) that is numerically secure under extended attacker privileges and attack scenarios. Our proposed system uses a multi-level authentication scheme and employs different designs of PUF to achieve high security with low computational complexity and small footprint. By employing role-specific PUF designs, SoP reduces the area over existing PUF-based authentication solutions by more than 68%. The key principles are: (i) reduce assumptions required to guarantee numerical security to a minimum set of practical assumptions; (ii) combine different PUF types to optimize security while minimizing resource requirements; (iii) provide multiple layers of authentication as a force-multiplier for the trusted party. This multi-level protocol resolves security deficiencies with regard to manin-the-middle attacks and challenge-response-pair (CRP) storage issues in conventional PUF protocols. Furthermore, SoP allows recognition and sealing of security breaches. A mathematical formulation of the attack complexity and statistical evaluation based on simulated PUF data show the strength of this new protocol.","abstract_html":"We analyze deficiencies in existing Physically Unclonable Function (PUF) systems and protocols, and propose a new system of PUFs (SoP) that is numerically secure under extended attacker privileges and attack scenarios. Our proposed system uses a multi-level authentication scheme and employs different designs of PUF to achieve high security with low computational complexity and small footprint. By employing role-specific PUF designs, SoP reduces the area over existing PUF-based authentication solutions by more than 68%. The key principles are: (i) reduce assumptions required to guarantee numerical security to a minimum set of practical assumptions; (ii) combine different PUF types to optimize security while minimizing resource requirements; (iii) provide multiple layers of authentication as a force-multiplier for the trusted party. This multi-level protocol resolves security deficiencies with regard to manin-the-middle attacks and challenge-response-pair (CRP) storage issues in conventional PUF protocols. Furthermore, SoP allows recognition and sealing of security breaches. A mathematical formulation of the attack complexity and statistical evaluation based on simulated PUF data show the strength of this new protocol.","abstract_has_math":false,"creators":["Konigsmark, Sven Tenzing Choden"],"institution":"University of Illinois at Urbana-Champaign","degree_name":"M.S.","degree_level":"Thesis","degree_discipline":"Electrical & Computer Engr","degree_department":null,"school":null,"contributors":["Chen, Deming","Wong, Martin D.F."],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2014,"date_issued":"2014-01-16T18:26:47Z","date_published":"2014-01-16T18:26:47Z","updated_at":"2026-07-22T22:25:38Z","subjects":["Physically Unclonable Functions","Hardware Security"],"languages":["en"],"rights":["Copyright 2013 S. T. 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The key principles are: (i) reduce assumptions required to guarantee numerical security to a minimum set of practical assumptions; (ii) combine different PUF types to optimize security while minimizing resource requirements; (iii) provide multiple layers of authentication as a force-multiplier for the trusted party. This multi-level protocol resolves security deficiencies with regard to manin-the-middle attacks and challenge-response-pair (CRP) storage issues in conventional PUF protocols. Furthermore, SoP allows recognition and sealing of security breaches. 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