{"id":{"repo_id":"uiuc","oai_identifier":"oai:www.ideals.illinois.edu:2142/129980"},"canonical_url":"https://search.dev.ndltd.org/etd/uiuc/oai:www.ideals.illinois.edu:2142/129980","repository":{"repo_id":"uiuc","name":"University of Illinois - Urbana-Champaign","base_url":"https://www.ideals.illinois.edu/oai-pmh"},"display":{"title":"GPS ephemeris spoofing","abstract":"Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2025-10-20 without embargo terms","abstract_html":"Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2025-10-20 without embargo terms","abstract_has_math":false,"creators":["Caglar, Deniz"],"institution":"University of Illinois Urbana-Champaign","degree_name":"M.S.","degree_level":"Thesis","degree_discipline":"Electrical & Computer Engr","degree_department":null,"school":null,"contributors":["Levchenko, Kirill Igorevich"],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2025,"date_issued":"2025-07-23","date_published":"2025-07-23","updated_at":"2026-07-22T22:25:06Z","subjects":["Gps","Navigation","Ephemeris","Spoof"],"languages":["en","eng"],"rights":["Copyright 2025 Deniz Caglar"],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":"https://hdl.handle.net/2142/129980","outbound_label":"Handle","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor","label":"Contributor","values":["Levchenko, Kirill Igorevich"]},{"key":"dc:creator","label":"Author","values":["Caglar, Deniz"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date","label":"Dc Date","values":["2025-07-23","2025-08"]},{"key":"dc:type","label":"Dc Type","values":["text"]},{"key":"thesis:degree_discipline","label":"Discipline","values":["Electrical & Computer Engr"]},{"key":"thesis:degree_level","label":"Degree Level","values":["Thesis"]},{"key":"thesis:degree_name","label":"Degree Name","values":["M.S."]},{"key":"thesis:institution_name","label":"Thesis Institution Name","values":["University of Illinois Urbana-Champaign"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["Gps","Navigation","Ephemeris","Spoof"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language","label":"Dc Language","values":["en","eng"]},{"key":"dc:rights","label":"Dc Rights","values":["Copyright 2025 Deniz Caglar"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["https://hdl.handle.net/2142/129980"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description","label":"Description","values":["Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2025-10-20 without embargo terms","The student, Deniz Caglar, accepted the attached license on 2025-07-23 at 07:39.","The student, Deniz Caglar, submitted this Thesis for approval on 2025-07-23 at 07:46.","This Thesis was approved for publication on 2025-07-23 at 11:09.","DSpace SAF Submission Ingestion Package generated from Vireo submission #22703 on 2025-10-20 at 20:15:41","GPS is a critical source of positioning and timing information for critical systems in a high number of civilian and military sectors. Although classic spoofing techniques have been thoroughly discussed and certain countermeasures enacted for certain use cases, there still is not a robust solution. We demonstrate that it is possible to trick a modern GPS receiver with a new spoofing technique: ephemeris spoofing. We demonstrate that an attacker can trick a receiver to alculate a false position, given control of the navigation data fed into the receiver, without actually emitting a GPS signal. We then analyze the capabilities of such an attacker and show that arbitrary longitude changes and receiver bias changes are possible. We consider potential data channels that can be used for this attack and conclude with a discussion on potential mitigations."]},{"key":"dc:format","label":"Dc Format","values":["application/pdf"]},{"key":"dc:title","label":"Title","values":["GPS ephemeris spoofing"]}]}],"canonical_facts":{"dc:contributor":["Levchenko, Kirill Igorevich"],"dc:creator":["Caglar, Deniz"],"dc:date":["2025-07-23","2025-08"],"dc:description":["Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2025-10-20 without embargo terms","The student, Deniz Caglar, accepted the attached license on 2025-07-23 at 07:39.","The student, Deniz Caglar, submitted this Thesis for approval on 2025-07-23 at 07:46.","This Thesis was approved for publication on 2025-07-23 at 11:09.","DSpace SAF Submission Ingestion Package generated from Vireo submission #22703 on 2025-10-20 at 20:15:41","GPS is a critical source of positioning and timing information for critical systems in a high number of civilian and military sectors. Although classic spoofing techniques have been thoroughly discussed and certain countermeasures enacted for certain use cases, there still is not a robust solution. We demonstrate that it is possible to trick a modern GPS receiver with a new spoofing technique: ephemeris spoofing. We demonstrate that an attacker can trick a receiver to alculate a false position, given control of the navigation data fed into the receiver, without actually emitting a GPS signal. We then analyze the capabilities of such an attacker and show that arbitrary longitude changes and receiver bias changes are possible. We consider potential data channels that can be used for this attack and conclude with a discussion on potential mitigations."],"dc:format":["application/pdf"],"dc:identifier":["https://hdl.handle.net/2142/129980"],"dc:language":["en","eng"],"dc:rights":["Copyright 2025 Deniz Caglar"],"dc:subject":["Gps","Navigation","Ephemeris","Spoof"],"dc:title":["GPS ephemeris spoofing"],"dc:type":["text"],"thesis:degree_discipline":["Electrical & Computer Engr"],"thesis:degree_level":["Thesis"],"thesis:degree_name":["M.S."],"thesis:institution_name":["University of Illinois Urbana-Champaign"]},"updated_at":"2026-07-22T22:25:06Z"}