{"id":"https://openalex.org/W4200293551","doi":"https://doi.org/10.1109/pst52912.2021.9647739","title":"PUPy: A Generalized, Optimistic Context Detection Framework for Implicit Authentication","display_name":"PUPy: A Generalized, Optimistic Context Detection Framework for Implicit Authentication","publication_year":2021,"publication_date":"2021-12-13","ids":{"openalex":"https://openalex.org/W4200293551","doi":"https://doi.org/10.1109/pst52912.2021.9647739"},"language":"en","primary_location":{"id":"doi:10.1109/pst52912.2021.9647739","is_oa":false,"landing_page_url":"https://doi.org/10.1109/pst52912.2021.9647739","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2021 18th International Conference on Privacy, Security and Trust (PST)","raw_type":"proceedings-article"},"type":"article","indexed_in":["crossref"],"open_access":{"is_oa":false,"oa_status":"closed","oa_url":null,"any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5054822146","display_name":"Matthew Rafuse","orcid":null},"institutions":[{"id":"https://openalex.org/I151746483","display_name":"University of Waterloo","ror":"https://ror.org/01aff2v68","country_code":"CA","type":"education","lineage":["https://openalex.org/I151746483"]}],"countries":["CA"],"is_corresponding":true,"raw_author_name":"Matthew Rafuse","raw_affiliation_strings":["Cheriton School of Computer Science, University of Waterloo"],"affiliations":[{"raw_affiliation_string":"Cheriton School of Computer Science, University of Waterloo","institution_ids":["https://openalex.org/I151746483"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5102843571","display_name":"Urs Hengartner","orcid":"https://orcid.org/0000-0002-9840-0015"},"institutions":[{"id":"https://openalex.org/I151746483","display_name":"University of Waterloo","ror":"https://ror.org/01aff2v68","country_code":"CA","type":"education","lineage":["https://openalex.org/I151746483"]}],"countries":["CA"],"is_corresponding":false,"raw_author_name":"Urs Hengartner","raw_affiliation_strings":["Cheriton School of Computer Science, University of Waterloo"],"affiliations":[{"raw_affiliation_string":"Cheriton School of Computer Science, University of Waterloo","institution_ids":["https://openalex.org/I151746483"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":2,"corresponding_author_ids":["https://openalex.org/A5054822146"],"corresponding_institution_ids":["https://openalex.org/I151746483"],"apc_list":null,"apc_paid":null,"fwci":0.0,"has_fulltext":false,"cited_by_count":0,"citation_normalized_percentile":{"value":0.29388701,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":null,"biblio":{"volume":"68","issue":null,"first_page":"1","last_page":"10"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11800","display_name":"User Authentication and Security Systems","score":1.0,"subfield":{"id":"https://openalex.org/subfields/1710","display_name":"Information Systems"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T11800","display_name":"User Authentication and Security Systems","score":1.0,"subfield":{"id":"https://openalex.org/subfields/1710","display_name":"Information Systems"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T11241","display_name":"Advanced Malware Detection Techniques","score":0.9891999959945679,"subfield":{"id":"https://openalex.org/subfields/1711","display_name":"Signal Processing"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T11045","display_name":"Privacy, Security, and Data Protection","score":0.979200005531311,"subfield":{"id":"https://openalex.org/subfields/3312","display_name":"Sociology and Political Science"},"field":{"id":"https://openalex.org/fields/33","display_name":"Social Sciences"},"domain":{"id":"https://openalex.org/domains/2","display_name":"Social Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.8589212894439697},{"id":"https://openalex.org/keywords/authentication","display_name":"Authentication (law)","score":0.6556446552276611},{"id":"https://openalex.org/keywords/context","display_name":"Context (archaeology)","score":0.5759297609329224},{"id":"https://openalex.org/keywords/computer-security","display_name":"Computer security","score":0.5173108577728271}],"concepts":[{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.8589212894439697},{"id":"https://openalex.org/C148417208","wikidata":"https://www.wikidata.org/wiki/Q4825882","display_name":"Authentication (law)","level":2,"score":0.6556446552276611},{"id":"https://openalex.org/C2779343474","wikidata":"https://www.wikidata.org/wiki/Q3109175","display_name":"Context (archaeology)","level":2,"score":0.5759297609329224},{"id":"https://openalex.org/C38652104","wikidata":"https://www.wikidata.org/wiki/Q3510521","display_name":"Computer security","level":1,"score":0.5173108577728271},{"id":"https://openalex.org/C86803240","wikidata":"https://www.wikidata.org/wiki/Q420","display_name":"Biology","level":0,"score":0.0},{"id":"https://openalex.org/C151730666","wikidata":"https://www.wikidata.org/wiki/Q7205","display_name":"Paleontology","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/pst52912.2021.9647739","is_oa":false,"landing_page_url":"https://doi.org/10.1109/pst52912.2021.9647739","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2021 18th International Conference on Privacy, Security and Trust (PST)","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[{"id":"https://metadata.un.org/sdg/16","score":0.46000000834465027,"display_name":"Peace, Justice and strong institutions"}],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":23,"referenced_works":["https://openalex.org/W39714684","https://openalex.org/W1724737952","https://openalex.org/W1873414311","https://openalex.org/W1971520550","https://openalex.org/W2023646352","https://openalex.org/W2035673685","https://openalex.org/W2038790378","https://openalex.org/W2147658271","https://openalex.org/W2151854612","https://openalex.org/W2278569723","https://openalex.org/W2330983506","https://openalex.org/W2337998345","https://openalex.org/W2468988960","https://openalex.org/W2549909981","https://openalex.org/W2803881785","https://openalex.org/W2900131811","https://openalex.org/W2972978455","https://openalex.org/W2980372565","https://openalex.org/W3008295594","https://openalex.org/W6601629988","https://openalex.org/W6637487613","https://openalex.org/W6639159786","https://openalex.org/W6756113376"],"related_works":["https://openalex.org/W2748952813","https://openalex.org/W2390279801","https://openalex.org/W2358668433","https://openalex.org/W2376932109","https://openalex.org/W2001405890","https://openalex.org/W2382290278","https://openalex.org/W2478288626","https://openalex.org/W2350741829","https://openalex.org/W2530322880","https://openalex.org/W2912135041"],"abstract_inverted_index":{"Devices":[0],"like":[1,120,155],"smartphones":[2],"and":[3,65,108,114],"laptops":[4],"employ":[5],"some":[6],"form":[7],"of":[8,31,117,153,199,207,229,254],"user":[9,21,36,192],"authentication":[10,25,59,67,85,90,121],"to":[11,15,27,39,44,52,79,106,123,126,131,144,158,195,217,220,244],"ensure":[12],"that":[13,34,101,150,170,213,240],"access":[14],"confidential":[16],"data":[17,105],"by":[18,40,56],"the":[19,29,46,151,156,197,208,221,252],"wrong":[20],"is":[22,37,91,138,149,173],"avoided.":[23],"Implicit":[24],"aims":[26],"limit":[28],"number":[30,198,253],"explicit":[32,54,58,64,82,200,255],"authentications":[33,55],"a":[35,95,168,171,184,189,226,234,248],"subjected":[38],"using":[41],"passive":[42],"approaches":[43],"authenticate":[45],"user.":[47],"Context":[48],"detection":[49,77,98,136],"frameworks":[50,78],"aim":[51],"reduce":[53],"disabling":[57],"entirely":[60],"when":[61,89],"appropriate.":[62],"Since":[63],"implicit":[66,84],"are":[68],"not":[69],"mutually":[70],"exclusive,":[71],"we":[72],"can":[73,164],"also":[74,224],"use":[75],"context":[76,97,104,135,145,172],"decide":[80],"whether":[81],"or":[83,162],"should":[86],"be":[87,165],"used":[88],"required.":[92],"We":[93,202,223,238],"present":[94],"novel":[96],"framework,":[99,119,209],"PUPy,":[100],"uses":[102],"sensed":[103],"infer":[107],"make":[109],"available":[110],"three":[111],"values\u2013privacy,":[112],"unfamiliarity,":[113],"proximity\u2013allowing":[115],"clients":[116],"our":[118,134,230],"services,":[122],"better":[124],"adapt":[125],"different":[127],"contexts.":[128],"As":[129],"opposed":[130],"existing":[132,245],"work,":[133],"framework":[137,231],"based":[139,232],"on":[140,233],"an":[141,176,204,211],"optimistic":[142,177],"approach":[143,178],"detection.":[146],"Our":[147],"assumption":[148],"absence":[152],"data,":[154],"inability":[157],"detect":[159],"nearby":[160],"people":[161],"devices,":[163],"taken":[166],"as":[167],"sign":[169],"safe.":[174],"Such":[175],"may":[179],"provide":[180,203],"less":[181],"security":[182],"than":[183],"pessimistic":[185],"approach,":[186],"but":[187],"provides":[188],"significantly":[190],"improved":[191],"experience":[193],"due":[194],"reducing":[196],"authentications.":[201,256],"Android":[205],"implementation":[206],"including":[210],"API":[212],"allows":[214],"other":[215],"developers":[216],"contribute":[218],"modules":[219],"system.":[222],"conduct":[225],"statistical":[227],"analysis":[228],"large":[235],"real-world":[236],"dataset.":[237],"find":[239],"PUPy":[241],"compares":[242],"favourably":[243],"works,":[246],"permitting":[247],"77.2%":[249],"reduction":[250],"in":[251]},"counts_by_year":[],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}