{"id":"https://openalex.org/W3171021568","doi":"https://doi.org/10.1145/3433210.3437535","title":"Multi-User Collusion-Resistant Searchable Encryption with Optimal Search Time","display_name":"Multi-User Collusion-Resistant Searchable Encryption with Optimal Search Time","publication_year":2021,"publication_date":"2021-05-24","ids":{"openalex":"https://openalex.org/W3171021568","doi":"https://doi.org/10.1145/3433210.3437535","mag":"3171021568"},"language":"en","primary_location":{"id":"doi:10.1145/3433210.3437535","is_oa":false,"landing_page_url":"https://doi.org/10.1145/3433210.3437535","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Proceedings of the 2021 ACM Asia Conference on Computer and Communications Security","raw_type":"proceedings-article"},"type":"conference-paper","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/A5100377649","display_name":"Yun Wang","orcid":"https://orcid.org/0000-0002-9858-2066"},"institutions":[{"id":"https://openalex.org/I200769079","display_name":"Hong Kong University of Science and Technology","ror":"https://ror.org/00q4vv597","country_code":"HK","type":"education","lineage":["https://openalex.org/I200769079"]}],"countries":["HK"],"is_corresponding":false,"raw_author_name":"Yun Wang","raw_affiliation_strings":["Hong Kong University of Science and Technology, Hong Kong, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Hong Kong University of Science and Technology, Hong Kong, China","institution_ids":["https://openalex.org/I200769079"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5047171761","display_name":"Dimitrios Papadopoulos","orcid":"https://orcid.org/0000-0003-2621-3015"},"institutions":[{"id":"https://openalex.org/I200769079","display_name":"Hong Kong University of Science and Technology","ror":"https://ror.org/00q4vv597","country_code":"HK","type":"education","lineage":["https://openalex.org/I200769079"]}],"countries":["HK"],"is_corresponding":false,"raw_author_name":"Dimitrios Papadopoulos","raw_affiliation_strings":["Hong Kong University of Science and Technology, Hong Kong, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Hong Kong University of Science and Technology, Hong Kong, China","institution_ids":["https://openalex.org/I200769079"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":[],"corresponding_institution_ids":["https://openalex.org/I200769079"],"apc_list":null,"apc_paid":null,"fwci":null,"has_fulltext":false,"cited_by_count":20,"citation_normalized_percentile":null,"cited_by_percentile_year":null,"biblio":{"volume":null,"issue":null,"first_page":"252","last_page":"264"},"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/T10720","display_name":"Complexity and Algorithms in Graphs","score":0.9891999959945679,"subfield":{"id":"https://openalex.org/subfields/1703","display_name":"Computational Theory and Mathematics"},"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":0.9678999781608582,"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":0.8552872538566589},{"id":"https://openalex.org/keywords/collusion","display_name":"Collusion","score":0.7560876607894897},{"id":"https://openalex.org/keywords/encryption","display_name":"Encryption","score":0.7406029105186462},{"id":"https://openalex.org/keywords/cloud-computing","display_name":"Cloud computing","score":0.7192158699035645},{"id":"https://openalex.org/keywords/client-side-encryption","display_name":"Client-side encryption","score":0.5024032592773438},{"id":"https://openalex.org/keywords/information-leakage","display_name":"Information leakage","score":0.49237191677093506},{"id":"https://openalex.org/keywords/cloud-storage","display_name":"Cloud storage","score":0.41832998394966125},{"id":"https://openalex.org/keywords/cryptography","display_name":"Cryptography","score":0.4181566536426544},{"id":"https://openalex.org/keywords/computer-security","display_name":"Computer security","score":0.4072182774543762},{"id":"https://openalex.org/keywords/computer-network","display_name":"Computer network","score":0.3776417672634125},{"id":"https://openalex.org/keywords/on-the-fly-encryption","display_name":"On-the-fly encryption","score":0.2769095301628113},{"id":"https://openalex.org/keywords/operating-system","display_name":"Operating system","score":0.11452144384384155}],"concepts":[{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.8552872538566589},{"id":"https://openalex.org/C2781198186","wikidata":"https://www.wikidata.org/wiki/Q701521","display_name":"Collusion","level":2,"score":0.7560876607894897},{"id":"https://openalex.org/C148730421","wikidata":"https://www.wikidata.org/wiki/Q141090","display_name":"Encryption","level":2,"score":0.7406029105186462},{"id":"https://openalex.org/C79974875","wikidata":"https://www.wikidata.org/wiki/Q483639","display_name":"Cloud computing","level":2,"score":0.7192158699035645},{"id":"https://openalex.org/C166501710","wikidata":"https://www.wikidata.org/wiki/Q5132476","display_name":"Client-side encryption","level":4,"score":0.5024032592773438},{"id":"https://openalex.org/C2779201187","wikidata":"https://www.wikidata.org/wiki/Q2775060","display_name":"Information leakage","level":2,"score":0.49237191677093506},{"id":"https://openalex.org/C2777059624","wikidata":"https://www.wikidata.org/wiki/Q914359","display_name":"Cloud storage","level":3,"score":0.41832998394966125},{"id":"https://openalex.org/C178489894","wikidata":"https://www.wikidata.org/wiki/Q8789","display_name":"Cryptography","level":2,"score":0.4181566536426544},{"id":"https://openalex.org/C38652104","wikidata":"https://www.wikidata.org/wiki/Q3510521","display_name":"Computer security","level":1,"score":0.4072182774543762},{"id":"https://openalex.org/C31258907","wikidata":"https://www.wikidata.org/wiki/Q1301371","display_name":"Computer network","level":1,"score":0.3776417672634125},{"id":"https://openalex.org/C147977885","wikidata":"https://www.wikidata.org/wiki/Q117010","display_name":"On-the-fly encryption","level":3,"score":0.2769095301628113},{"id":"https://openalex.org/C111919701","wikidata":"https://www.wikidata.org/wiki/Q9135","display_name":"Operating system","level":1,"score":0.11452144384384155},{"id":"https://openalex.org/C162324750","wikidata":"https://www.wikidata.org/wiki/Q8134","display_name":"Economics","level":0,"score":0.0},{"id":"https://openalex.org/C175444787","wikidata":"https://www.wikidata.org/wiki/Q39072","display_name":"Microeconomics","level":1,"score":0.0}],"mesh":[],"locations_count":3,"locations":[{"id":"doi:10.1145/3433210.3437535","is_oa":false,"landing_page_url":"https://doi.org/10.1145/3433210.3437535","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Proceedings of the 2021 ACM Asia Conference on Computer and Communications Security","raw_type":"proceedings-article"},{"id":"pmh:oai:repository.hkust.edu.hk:1783.1-111472","is_oa":false,"landing_page_url":"http://gateway.isiknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=LinksAMR&SrcApp=PARTNER_APP&DestLinkType=FullRecord&DestApp=WOS&KeyUT=000936253300021","pdf_url":null,"source":{"id":"https://openalex.org/S4306401796","display_name":"Rare & Special e-Zone (The Hong Kong University of Science and Technology)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I200769079","host_organization_name":"Hong Kong University of Science and Technology","host_organization_lineage":["https://openalex.org/I200769079"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":"Conference paper"},{"id":"pmh:oai:repository.ust.hk:1783.1-111472","is_oa":false,"landing_page_url":"http://repository.ust.hk/ir/Record/1783.1-111472","pdf_url":null,"source":{"id":"https://openalex.org/S4306401796","display_name":"Rare & Special e-Zone (The Hong Kong University of Science and Technology)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I200769079","host_organization_name":"Hong Kong University of Science and Technology","host_organization_lineage":["https://openalex.org/I200769079"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"","raw_type":"Conference paper"}],"best_oa_location":null,"sustainable_development_goals":[{"score":0.4300000071525574,"id":"https://metadata.un.org/sdg/17","display_name":"Partnerships for the goals"}],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":47,"referenced_works":["https://openalex.org/W59915946","https://openalex.org/W841739680","https://openalex.org/W1502708590","https://openalex.org/W1516033050","https://openalex.org/W1768601545","https://openalex.org/W1966034332","https://openalex.org/W1988374166","https://openalex.org/W1997735394","https://openalex.org/W2001154722","https://openalex.org/W2016575873","https://openalex.org/W2022121285","https://openalex.org/W2038988507","https://openalex.org/W2063575624","https://openalex.org/W2086763678","https://openalex.org/W2089777274","https://openalex.org/W2111446139","https://openalex.org/W2120839853","https://openalex.org/W2131043660","https://openalex.org/W2146828512","https://openalex.org/W2147929033","https://openalex.org/W2152516507","https://openalex.org/W2175795545","https://openalex.org/W2408726748","https://openalex.org/W2472177816","https://openalex.org/W2484588551","https://openalex.org/W2498753511","https://openalex.org/W2520286728","https://openalex.org/W2537304608","https://openalex.org/W2539385377","https://openalex.org/W2592956480","https://openalex.org/W2613807115","https://openalex.org/W2752167152","https://openalex.org/W2761324066","https://openalex.org/W2765463836","https://openalex.org/W2771683999","https://openalex.org/W2793018217","https://openalex.org/W2795217733","https://openalex.org/W2796933658","https://openalex.org/W2891020614","https://openalex.org/W2898997176","https://openalex.org/W2902751186","https://openalex.org/W2963873050","https://openalex.org/W2975175556","https://openalex.org/W3008291567","https://openalex.org/W3035978337","https://openalex.org/W4285718532","https://openalex.org/W6602783575"],"related_works":["https://openalex.org/W2329178507","https://openalex.org/W2595956926","https://openalex.org/W2051488261","https://openalex.org/W2103519941","https://openalex.org/W2603856638","https://openalex.org/W4398163911","https://openalex.org/W2529439037","https://openalex.org/W2032151215","https://openalex.org/W2886290906","https://openalex.org/W1989758513"],"abstract_inverted_index":{"The":[0],"continued":[1],"development":[2],"of":[3,26,76,88,94,112,191,226],"cloud":[4,16,50],"computing":[5],"requires":[6],"technologies":[7],"that":[8,45,103,115,141],"protect":[9],"users'":[10],"data":[11,31],"privacy":[12,53,175],"even":[13,70],"from":[14],"the":[15,67,77,86,113,120,158,189,218,224],"providers":[17],"themselves.":[18],"Multi-user":[19],"searchable":[20,135],"encryption":[21,136],"is":[22,56,99,222],"one":[23],"such":[24],"kind":[25],"technology.":[27],"It":[28],"allows":[29],"a":[30,49,206,227],"owner":[32],"to":[33,37,58,101,150,160,178],"selectively":[34],"enable":[35],"users":[36,123],"perform":[38],"keyword":[39],"searches":[40],"over":[41,210],"her":[42],"encrypted":[43,68],"documents":[44,89],"are":[46,116,157,215],"stored":[47],"at":[48],"server.":[51],"For":[52],"purposes,":[54],"it":[55,72,83,98],"important":[57,100],"limit":[59],"what":[60],"an":[61],"adversarial":[62],"server":[63],"can":[64,84],"infer":[65],"about":[66,110],"documents,":[69],"if":[71],"colludes":[73],"with":[74,91,119,176],"some":[75],"users.":[78],"Clearly,":[79],"in":[80,223],"this":[81,92,104,128,139],"case":[82],"learn":[85],"content":[87],"shared":[90,118],"subset":[93],"\"corrupted\"":[95],"users,":[96],"however,":[97],"ensure":[102],"collusion":[105],"does":[106],"not":[107],"reveal":[108],"information":[109],"parts":[111],"dataset":[114],"only":[117],"remaining":[121],"\"uncorrupted\"":[122],"via":[124],"cross-user":[125],"leakage.":[126,148],"In":[127],"work,":[129],"we":[130,198],"propose":[131],"three":[132],"novel":[133],"multi-user":[134],"schemes":[137,156,193],"for":[138],"setting":[140],"achieve":[142,161],"different":[143],"trade-offs":[144],"between":[145],"performance":[146,203],"and":[147,173,200,209],"Compared":[149],"previous":[151],"ones,":[152],"our":[153,192],"first":[154,159],"two":[155],"asymptotically":[162],"optimal":[163],"search":[164,184,219],"time.":[165],"Our":[166,212],"third":[167],"scheme":[168],"achieves":[169],"minimal":[170],"user":[171],"storage":[172],"forward":[174],"respect":[177],"document":[179],"sharing,":[180],"but":[181],"slightly":[182],"slower":[183],"performance.":[185],"We":[186],"formally":[187],"prove":[188],"security":[190],"under":[194],"reasonable":[195],"assumptions.":[196],"Moreover,":[197],"implement":[199],"evaluate":[201],"their":[202],"both":[204],"on":[205],"single":[207],"machine":[208],"WAN.":[211],"experimental":[213],"results":[214],"encouraging,":[216],"e.g.,":[217],"computation":[220],"time":[221],"order":[225],"few":[228],"milliseconds.":[229]},"counts_by_year":[{"year":2026,"cited_by_count":1},{"year":2025,"cited_by_count":5},{"year":2024,"cited_by_count":2},{"year":2023,"cited_by_count":7},{"year":2022,"cited_by_count":3},{"year":2021,"cited_by_count":2}],"updated_date":"2026-07-14T23:27:15.235271","created_date":"2025-10-10T00:00:00"}