{"id":"https://openalex.org/W2242794960","doi":"https://doi.org/10.1515/popets-2015-0008","title":"DP5: A Private Presence Service","display_name":"DP5: A Private Presence Service","publication_year":2015,"publication_date":"2015-06-01","ids":{"openalex":"https://openalex.org/W2242794960","doi":"https://doi.org/10.1515/popets-2015-0008","mag":"2242794960"},"language":"en","primary_location":{"id":"doi:10.1515/popets-2015-0008","is_oa":true,"landing_page_url":"https://doi.org/10.1515/popets-2015-0008","pdf_url":"https://petsymposium.org/popets/2015/popets-2015-0008.pdf","source":{"id":"https://openalex.org/S4210183172","display_name":"Proceedings on Privacy Enhancing Technologies","issn_l":"2299-0984","issn":["2299-0984"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310320322","host_organization_name":"De Gruyter Open","host_organization_lineage":["https://openalex.org/P4310320322","https://openalex.org/P4310313990"],"host_organization_lineage_names":["De Gruyter Open","De Gruyter"],"type":"journal"},"license":"cc-by-nc-nd","license_id":"https://openalex.org/licenses/cc-by-nc-nd","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Proceedings on Privacy Enhancing Technologies","raw_type":"journal-article"},"type":"article","indexed_in":["crossref","doaj"],"open_access":{"is_oa":true,"oa_status":"hybrid","oa_url":"https://petsymposium.org/popets/2015/popets-2015-0008.pdf","any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5024942018","display_name":"Nikita Borisov","orcid":"https://orcid.org/0000-0002-7769-4931"},"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"]},{"id":"https://openalex.org/I157725225","display_name":"University of Illinois Urbana-Champaign","ror":"https://ror.org/047426m28","country_code":"US","type":"education","lineage":["https://openalex.org/I157725225"]},{"id":"https://openalex.org/I45129253","display_name":"University College London","ror":"https://ror.org/02jx3x895","country_code":"GB","type":"education","lineage":["https://openalex.org/I124357947","https://openalex.org/I45129253"]}],"countries":["CA","GB","US"],"is_corresponding":false,"raw_author_name":"Nikita Borisov","raw_affiliation_strings":["University of Illinois at Urbana-Champaign","University College London,","University of Illinois at Urbana-Champaign,","University of Waterloo,"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"University of Illinois at Urbana-Champaign","institution_ids":["https://openalex.org/I157725225"]},{"raw_affiliation_string":"University College London,","institution_ids":["https://openalex.org/I45129253"]},{"raw_affiliation_string":"University of Illinois at Urbana-Champaign,","institution_ids":["https://openalex.org/I157725225"]},{"raw_affiliation_string":"University of Waterloo,","institution_ids":["https://openalex.org/I151746483"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5033480395","display_name":"George Danezis","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"]},{"id":"https://openalex.org/I157725225","display_name":"University of Illinois Urbana-Champaign","ror":"https://ror.org/047426m28","country_code":"US","type":"education","lineage":["https://openalex.org/I157725225"]},{"id":"https://openalex.org/I45129253","display_name":"University College London","ror":"https://ror.org/02jx3x895","country_code":"GB","type":"education","lineage":["https://openalex.org/I124357947","https://openalex.org/I45129253"]}],"countries":["CA","GB","US"],"is_corresponding":false,"raw_author_name":"George Danezis","raw_affiliation_strings":["University College London","University College London,","University of Illinois at Urbana-Champaign,","University of Waterloo,"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"University College London","institution_ids":["https://openalex.org/I45129253"]},{"raw_affiliation_string":"University College London,","institution_ids":["https://openalex.org/I45129253"]},{"raw_affiliation_string":"University of Illinois at Urbana-Champaign,","institution_ids":["https://openalex.org/I157725225"]},{"raw_affiliation_string":"University of Waterloo,","institution_ids":["https://openalex.org/I151746483"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5090953912","display_name":"Ian Goldberg","orcid":"https://orcid.org/0000-0002-1176-2882"},"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"]},{"id":"https://openalex.org/I157725225","display_name":"University of Illinois Urbana-Champaign","ror":"https://ror.org/047426m28","country_code":"US","type":"education","lineage":["https://openalex.org/I157725225"]},{"id":"https://openalex.org/I45129253","display_name":"University College London","ror":"https://ror.org/02jx3x895","country_code":"GB","type":"education","lineage":["https://openalex.org/I124357947","https://openalex.org/I45129253"]}],"countries":["CA","GB","US"],"is_corresponding":false,"raw_author_name":"Ian Goldberg","raw_affiliation_strings":["University of Waterloo","University of Waterloo,","University of Illinois at Urbana-Champaign,","University College London,"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"University of Waterloo","institution_ids":["https://openalex.org/I151746483"]},{"raw_affiliation_string":"University of Waterloo,","institution_ids":["https://openalex.org/I151746483"]},{"raw_affiliation_string":"University of Illinois at Urbana-Champaign,","institution_ids":["https://openalex.org/I157725225"]},{"raw_affiliation_string":"University College London,","institution_ids":["https://openalex.org/I45129253"]}]}],"institutions":[],"countries_distinct_count":3,"institutions_distinct_count":3,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":16.3369,"has_fulltext":true,"cited_by_count":67,"citation_normalized_percentile":{"value":0.98968425,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":89,"max":99},"biblio":{"volume":"2015","issue":"2","first_page":"4","last_page":"24"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10237","display_name":"Cryptography and Data Security","score":0.9998999834060669,"subfield":{"id":"https://openalex.org/subfields/1702","display_name":"Artificial Intelligence"},"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/T10237","display_name":"Cryptography and Data Security","score":0.9998999834060669,"subfield":{"id":"https://openalex.org/subfields/1702","display_name":"Artificial Intelligence"},"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/T11598","display_name":"Internet Traffic Analysis and Secure E-voting","score":0.9998999834060669,"subfield":{"id":"https://openalex.org/subfields/1702","display_name":"Artificial Intelligence"},"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/T10764","display_name":"Privacy-Preserving Technologies in Data","score":0.9988999962806702,"subfield":{"id":"https://openalex.org/subfields/1702","display_name":"Artificial Intelligence"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.7018916606903076},{"id":"https://openalex.org/keywords/scalability","display_name":"Scalability","score":0.6178911924362183},{"id":"https://openalex.org/keywords/forward-secrecy","display_name":"Forward secrecy","score":0.5771372318267822},{"id":"https://openalex.org/keywords/computer-security","display_name":"Computer security","score":0.5189856886863708},{"id":"https://openalex.org/keywords/key","display_name":"Key (lock)","score":0.49595221877098083},{"id":"https://openalex.org/keywords/service","display_name":"Service (business)","score":0.46708035469055176},{"id":"https://openalex.org/keywords/secrecy","display_name":"Secrecy","score":0.4670749008655548},{"id":"https://openalex.org/keywords/private-information-retrieval","display_name":"Private information retrieval","score":0.44996824860572815},{"id":"https://openalex.org/keywords/internet-privacy","display_name":"Internet privacy","score":0.3611420691013336},{"id":"https://openalex.org/keywords/public-key-cryptography","display_name":"Public-key cryptography","score":0.2358982264995575},{"id":"https://openalex.org/keywords/database","display_name":"Database","score":0.16767948865890503},{"id":"https://openalex.org/keywords/encryption","display_name":"Encryption","score":0.12392053008079529},{"id":"https://openalex.org/keywords/business","display_name":"Business","score":0.1222059428691864}],"concepts":[{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.7018916606903076},{"id":"https://openalex.org/C48044578","wikidata":"https://www.wikidata.org/wiki/Q727490","display_name":"Scalability","level":2,"score":0.6178911924362183},{"id":"https://openalex.org/C205009425","wikidata":"https://www.wikidata.org/wiki/Q935662","display_name":"Forward secrecy","level":4,"score":0.5771372318267822},{"id":"https://openalex.org/C38652104","wikidata":"https://www.wikidata.org/wiki/Q3510521","display_name":"Computer security","level":1,"score":0.5189856886863708},{"id":"https://openalex.org/C26517878","wikidata":"https://www.wikidata.org/wiki/Q228039","display_name":"Key (lock)","level":2,"score":0.49595221877098083},{"id":"https://openalex.org/C2780378061","wikidata":"https://www.wikidata.org/wiki/Q25351891","display_name":"Service (business)","level":2,"score":0.46708035469055176},{"id":"https://openalex.org/C2776452267","wikidata":"https://www.wikidata.org/wiki/Q1503443","display_name":"Secrecy","level":2,"score":0.4670749008655548},{"id":"https://openalex.org/C99221444","wikidata":"https://www.wikidata.org/wiki/Q1532069","display_name":"Private information retrieval","level":2,"score":0.44996824860572815},{"id":"https://openalex.org/C108827166","wikidata":"https://www.wikidata.org/wiki/Q175975","display_name":"Internet privacy","level":1,"score":0.3611420691013336},{"id":"https://openalex.org/C203062551","wikidata":"https://www.wikidata.org/wiki/Q201339","display_name":"Public-key cryptography","level":3,"score":0.2358982264995575},{"id":"https://openalex.org/C77088390","wikidata":"https://www.wikidata.org/wiki/Q8513","display_name":"Database","level":1,"score":0.16767948865890503},{"id":"https://openalex.org/C148730421","wikidata":"https://www.wikidata.org/wiki/Q141090","display_name":"Encryption","level":2,"score":0.12392053008079529},{"id":"https://openalex.org/C144133560","wikidata":"https://www.wikidata.org/wiki/Q4830453","display_name":"Business","level":0,"score":0.1222059428691864},{"id":"https://openalex.org/C162853370","wikidata":"https://www.wikidata.org/wiki/Q39809","display_name":"Marketing","level":1,"score":0.0}],"mesh":[],"locations_count":4,"locations":[{"id":"doi:10.1515/popets-2015-0008","is_oa":true,"landing_page_url":"https://doi.org/10.1515/popets-2015-0008","pdf_url":"https://petsymposium.org/popets/2015/popets-2015-0008.pdf","source":{"id":"https://openalex.org/S4210183172","display_name":"Proceedings on Privacy Enhancing Technologies","issn_l":"2299-0984","issn":["2299-0984"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310320322","host_organization_name":"De Gruyter Open","host_organization_lineage":["https://openalex.org/P4310320322","https://openalex.org/P4310313990"],"host_organization_lineage_names":["De Gruyter Open","De Gruyter"],"type":"journal"},"license":"cc-by-nc-nd","license_id":"https://openalex.org/licenses/cc-by-nc-nd","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Proceedings on Privacy Enhancing Technologies","raw_type":"journal-article"},{"id":"pmh:oai:CiteSeerX.psu:10.1.1.648.81","is_oa":false,"landing_page_url":"http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.648.81","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"http://cacr.uwaterloo.ca/techreports/2014/cacr2014-10.pdf","raw_type":"text"},{"id":"pmh:oai:doaj.org/article:ba83885e3fc6449cb7a99e66c3d216ce","is_oa":false,"landing_page_url":"https://doaj.org/article/ba83885e3fc6449cb7a99e66c3d216ce","pdf_url":null,"source":{"id":"https://openalex.org/S4306401280","display_name":"DOAJ (DOAJ: Directory of Open Access Journals)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"Proceedings on Privacy Enhancing Technologies, Vol 2015, Iss 2, Pp 4-24 (2015)","raw_type":"article"},{"id":"pmh:oai:eprints.ucl.ac.uk.OAI2:1469539","is_oa":false,"landing_page_url":"https://discovery.ucl.ac.uk/id/eprint/1469539/","pdf_url":null,"source":{"id":"https://openalex.org/S4306400024","display_name":"UCL Discovery (University College London)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I45129253","host_organization_name":"University College London","host_organization_lineage":["https://openalex.org/I45129253"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"Proceedings on Privacy Enhancing Technologies , 2015 (2) pp. 4-24. (2015)","raw_type":"Article"}],"best_oa_location":{"id":"doi:10.1515/popets-2015-0008","is_oa":true,"landing_page_url":"https://doi.org/10.1515/popets-2015-0008","pdf_url":"https://petsymposium.org/popets/2015/popets-2015-0008.pdf","source":{"id":"https://openalex.org/S4210183172","display_name":"Proceedings on Privacy Enhancing Technologies","issn_l":"2299-0984","issn":["2299-0984"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310320322","host_organization_name":"De Gruyter Open","host_organization_lineage":["https://openalex.org/P4310320322","https://openalex.org/P4310313990"],"host_organization_lineage_names":["De Gruyter Open","De Gruyter"],"type":"journal"},"license":"cc-by-nc-nd","license_id":"https://openalex.org/licenses/cc-by-nc-nd","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Proceedings on Privacy Enhancing Technologies","raw_type":"journal-article"},"sustainable_development_goals":[{"score":0.5699999928474426,"display_name":"Industry, innovation and infrastructure","id":"https://metadata.un.org/sdg/9"}],"awards":[{"id":"https://openalex.org/G3150410823","display_name":"CAREER: Scale and Performance in Anonymous Communication","funder_award_id":"0953655","funder_id":"https://openalex.org/F4320306076","funder_display_name":"National Science Foundation"},{"id":"https://openalex.org/G6673989364","display_name":"Strengthening anonymity in messaging systems","funder_award_id":"EP/M013286/1","funder_id":"https://openalex.org/F4320334627","funder_display_name":"Engineering and Physical Sciences Research Council"},{"id":"https://openalex.org/G757160290","display_name":null,"funder_award_id":"EP/M013286/1","funder_id":"https://openalex.org/F4320334627","funder_display_name":"Engineering and Physical Sciences Research Council"}],"funders":[{"id":"https://openalex.org/F4320306076","display_name":"National Science Foundation","ror":"https://ror.org/021nxhr62"},{"id":"https://openalex.org/F4320308943","display_name":"Microsoft Research","ror":"https://ror.org/00d0nc645"},{"id":"https://openalex.org/F4320322676","display_name":"University of Waterloo","ror":"https://ror.org/01aff2v68"},{"id":"https://openalex.org/F4320334593","display_name":"Natural Sciences and Engineering Research Council of Canada","ror":"https://ror.org/01h531d29"},{"id":"https://openalex.org/F4320334627","display_name":"Engineering and Physical Sciences Research Council","ror":"https://ror.org/0439y7842"}],"has_content":{"grobid_xml":true,"pdf":true},"content_urls":{"pdf":"https://content.openalex.org/works/W2242794960.pdf","grobid_xml":"https://content.openalex.org/works/W2242794960.grobid-xml"},"referenced_works_count":43,"referenced_works":["https://openalex.org/W28930810","https://openalex.org/W163369389","https://openalex.org/W793528228","https://openalex.org/W1504211573","https://openalex.org/W1520914943","https://openalex.org/W1536141561","https://openalex.org/W1556212265","https://openalex.org/W1561898552","https://openalex.org/W1610688607","https://openalex.org/W1639305476","https://openalex.org/W1655958391","https://openalex.org/W1788452017","https://openalex.org/W1910751411","https://openalex.org/W1927311981","https://openalex.org/W1989839627","https://openalex.org/W2014239329","https://openalex.org/W2026892462","https://openalex.org/W2031925412","https://openalex.org/W2037107113","https://openalex.org/W2087811006","https://openalex.org/W2099858845","https://openalex.org/W2105037262","https://openalex.org/W2115148615","https://openalex.org/W2116648071","https://openalex.org/W2133420971","https://openalex.org/W2136631923","https://openalex.org/W2138670865","https://openalex.org/W2138719936","https://openalex.org/W2140685585","https://openalex.org/W2148098489","https://openalex.org/W2150307013","https://openalex.org/W2156186849","https://openalex.org/W2158474152","https://openalex.org/W2159675343","https://openalex.org/W2160792759","https://openalex.org/W2222747815","https://openalex.org/W2266218113","https://openalex.org/W2317177525","https://openalex.org/W2345949370","https://openalex.org/W2523236905","https://openalex.org/W2580519464","https://openalex.org/W3029232588","https://openalex.org/W3100723659"],"related_works":["https://openalex.org/W4220935046","https://openalex.org/W3037790231","https://openalex.org/W2321762030","https://openalex.org/W3176752373","https://openalex.org/W2034415296","https://openalex.org/W2824530277","https://openalex.org/W1997202381","https://openalex.org/W3175393859","https://openalex.org/W2182674152","https://openalex.org/W2400921838"],"abstract_inverted_index":{"Abstract":[0],"Users":[1],"of":[2,24,33,35,71,74,120,130,138],"social":[3],"applications":[4],"like":[5],"to":[6,62,88,102,107],"be":[7],"notified":[8],"when":[9],"their":[10,64,72],"friends":[11,75],"are":[12,86,98,105],"online.":[13],"Typically,":[14],"this":[15,78],"is":[16,26],"done":[17],"by":[18],"a":[19,47,56],"central":[20],"server":[21],"keeping":[22,77],"track":[23],"who":[25],"online":[27,52,65],"and":[28,67,92,113,141],"offline,":[29],"as":[30,32,133,135],"well":[31,134],"all":[34],"the":[36,69,127,131],"users\u2019":[37],"\u201cbuddy":[38],"lists\u201d,":[39],"which":[40],"contain":[41],"sensitive":[42],"information.":[43],"We":[44,122],"present":[45],"DP5,":[46],"cryptographic":[48],"service":[49],"that":[50],"implements":[51],"presence":[53,66,70],"indication":[54],"in":[55,118],"privacy-friendly":[57],"way.":[58],"DP5":[59,101],"allows":[60],"clients":[61],"register":[63],"query":[68],"list":[73,79],"while":[76],"secret.":[80],"Besides":[81],"presence,":[82],"high-integrity":[83],"status":[84],"updates":[85],"supported,":[87],"facilitate":[89],"key":[90],"update":[91],"rendezvous":[93],"protocols.":[94],"While":[95],"infrastructure":[96],"services":[97],"required":[99],"for":[100,126],"operate,":[103],"they":[104],"designed":[106],"not":[108],"require":[109],"any":[110],"long-term":[111],"secrets":[112],"provide":[114,123],"perfect":[115],"forward":[116],"secrecy":[117],"case":[119],"compromise.":[121],"security":[124],"arguments":[125],"indistinguishability":[128],"properties":[129],"protocol,":[132],"an":[136],"evaluation":[137],"its":[139],"scalability":[140],"performance.":[142]},"counts_by_year":[{"year":2026,"cited_by_count":4},{"year":2025,"cited_by_count":5},{"year":2024,"cited_by_count":2},{"year":2023,"cited_by_count":4},{"year":2022,"cited_by_count":4},{"year":2021,"cited_by_count":6},{"year":2020,"cited_by_count":5},{"year":2019,"cited_by_count":4},{"year":2018,"cited_by_count":8},{"year":2017,"cited_by_count":10},{"year":2016,"cited_by_count":6},{"year":2015,"cited_by_count":7},{"year":2014,"cited_by_count":1}],"updated_date":"2026-07-27T08:26:11.824852","created_date":"2025-10-10T00:00:00"}