{"id":"https://openalex.org/W3030905162","doi":"https://doi.org/10.1109/csf54842.2022.9919678","title":"Collusion-Preserving Computation without a Mediator","display_name":"Collusion-Preserving Computation without a Mediator","publication_year":2022,"publication_date":"2022-08-01","ids":{"openalex":"https://openalex.org/W3030905162","doi":"https://doi.org/10.1109/csf54842.2022.9919678","mag":"3030905162"},"language":"en","primary_location":{"id":"doi:10.1109/csf54842.2022.9919678","is_oa":false,"landing_page_url":"https://doi.org/10.1109/csf54842.2022.9919678","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2022 IEEE 35th Computer Security Foundations Symposium (CSF)","raw_type":"proceedings-article"},"type":"preprint","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/A5011306482","display_name":"Michele Ciampi","orcid":"https://orcid.org/0000-0001-5062-0388"},"institutions":[{"id":"https://openalex.org/I98677209","display_name":"University of Edinburgh","ror":"https://ror.org/01nrxwf90","country_code":"GB","type":"education","lineage":["https://openalex.org/I98677209"]}],"countries":["GB"],"is_corresponding":true,"raw_author_name":"Michele Ciampi","raw_affiliation_strings":["University of Edinburgh"],"affiliations":[{"raw_affiliation_string":"University of Edinburgh","institution_ids":["https://openalex.org/I98677209"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5087402851","display_name":"Lu Yun","orcid":"https://orcid.org/0000-0002-0098-0577"},"institutions":[{"id":"https://openalex.org/I98677209","display_name":"University of Edinburgh","ror":"https://ror.org/01nrxwf90","country_code":"GB","type":"education","lineage":["https://openalex.org/I98677209"]}],"countries":["GB"],"is_corresponding":false,"raw_author_name":"Yun Lu","raw_affiliation_strings":["University of Edinburgh"],"affiliations":[{"raw_affiliation_string":"University of Edinburgh","institution_ids":["https://openalex.org/I98677209"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5014862413","display_name":"Vassilis Zikas","orcid":"https://orcid.org/0000-0002-5422-7572"},"institutions":[{"id":"https://openalex.org/I219193219","display_name":"Purdue University West Lafayette","ror":"https://ror.org/02dqehb95","country_code":"US","type":"education","lineage":["https://openalex.org/I219193219"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Vassilis Zikas","raw_affiliation_strings":["Purdue University"],"affiliations":[{"raw_affiliation_string":"Purdue University","institution_ids":["https://openalex.org/I219193219"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":3,"corresponding_author_ids":["https://openalex.org/A5011306482"],"corresponding_institution_ids":["https://openalex.org/I98677209"],"apc_list":null,"apc_paid":null,"fwci":0.9789941,"has_fulltext":false,"cited_by_count":5,"citation_normalized_percentile":{"value":0.7265986,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":96},"biblio":{"volume":null,"issue":null,"first_page":"211","last_page":"226"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10237","display_name":"Cryptography and Data Security","score":0.9998000264167786,"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":0.9998000264167786,"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/T10951","display_name":"Cryptographic Implementations and Security","score":0.9932000041007996,"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/T11424","display_name":"Security and Verification in Computing","score":0.9868000149726868,"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/collusion","display_name":"Collusion","score":0.8157093524932861},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.7992258667945862},{"id":"https://openalex.org/keywords/protocol","display_name":"Protocol (science)","score":0.5242648124694824},{"id":"https://openalex.org/keywords/computer-security","display_name":"Computer security","score":0.511305570602417},{"id":"https://openalex.org/keywords/byzantine-fault-tolerance","display_name":"Byzantine fault tolerance","score":0.5097104907035828},{"id":"https://openalex.org/keywords/cryptography","display_name":"Cryptography","score":0.47681349515914917},{"id":"https://openalex.org/keywords/gas-meter-prover","display_name":"Gas meter prover","score":0.4525810480117798},{"id":"https://openalex.org/keywords/computer-network","display_name":"Computer network","score":0.43353360891342163},{"id":"https://openalex.org/keywords/verifiable-secret-sharing","display_name":"Verifiable secret sharing","score":0.42170578241348267},{"id":"https://openalex.org/keywords/discrete-logarithm","display_name":"Discrete logarithm","score":0.41731441020965576},{"id":"https://openalex.org/keywords/impossibility","display_name":"Impossibility","score":0.41550275683403015},{"id":"https://openalex.org/keywords/distributed-computing","display_name":"Distributed computing","score":0.35023126006126404},{"id":"https://openalex.org/keywords/public-key-cryptography","display_name":"Public-key cryptography","score":0.24221616983413696},{"id":"https://openalex.org/keywords/encryption","display_name":"Encryption","score":0.20433133840560913},{"id":"https://openalex.org/keywords/fault-tolerance","display_name":"Fault tolerance","score":0.16007769107818604},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.10819664597511292}],"concepts":[{"id":"https://openalex.org/C2781198186","wikidata":"https://www.wikidata.org/wiki/Q701521","display_name":"Collusion","level":2,"score":0.8157093524932861},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.7992258667945862},{"id":"https://openalex.org/C2780385302","wikidata":"https://www.wikidata.org/wiki/Q367158","display_name":"Protocol (science)","level":3,"score":0.5242648124694824},{"id":"https://openalex.org/C38652104","wikidata":"https://www.wikidata.org/wiki/Q3510521","display_name":"Computer security","level":1,"score":0.511305570602417},{"id":"https://openalex.org/C168021876","wikidata":"https://www.wikidata.org/wiki/Q1353446","display_name":"Byzantine fault tolerance","level":3,"score":0.5097104907035828},{"id":"https://openalex.org/C178489894","wikidata":"https://www.wikidata.org/wiki/Q8789","display_name":"Cryptography","level":2,"score":0.47681349515914917},{"id":"https://openalex.org/C159718280","wikidata":"https://www.wikidata.org/wiki/Q5526353","display_name":"Gas meter prover","level":3,"score":0.4525810480117798},{"id":"https://openalex.org/C31258907","wikidata":"https://www.wikidata.org/wiki/Q1301371","display_name":"Computer network","level":1,"score":0.43353360891342163},{"id":"https://openalex.org/C85847156","wikidata":"https://www.wikidata.org/wiki/Q59015987","display_name":"Verifiable secret sharing","level":3,"score":0.42170578241348267},{"id":"https://openalex.org/C173259116","wikidata":"https://www.wikidata.org/wiki/Q864003","display_name":"Discrete logarithm","level":4,"score":0.41731441020965576},{"id":"https://openalex.org/C2776261394","wikidata":"https://www.wikidata.org/wiki/Q315562","display_name":"Impossibility","level":2,"score":0.41550275683403015},{"id":"https://openalex.org/C120314980","wikidata":"https://www.wikidata.org/wiki/Q180634","display_name":"Distributed computing","level":1,"score":0.35023126006126404},{"id":"https://openalex.org/C203062551","wikidata":"https://www.wikidata.org/wiki/Q201339","display_name":"Public-key cryptography","level":3,"score":0.24221616983413696},{"id":"https://openalex.org/C148730421","wikidata":"https://www.wikidata.org/wiki/Q141090","display_name":"Encryption","level":2,"score":0.20433133840560913},{"id":"https://openalex.org/C63540848","wikidata":"https://www.wikidata.org/wiki/Q3140932","display_name":"Fault tolerance","level":2,"score":0.16007769107818604},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.10819664597511292},{"id":"https://openalex.org/C108710211","wikidata":"https://www.wikidata.org/wiki/Q11538","display_name":"Mathematical proof","level":2,"score":0.0},{"id":"https://openalex.org/C177264268","wikidata":"https://www.wikidata.org/wiki/Q1514741","display_name":"Set (abstract data type)","level":2,"score":0.0},{"id":"https://openalex.org/C175444787","wikidata":"https://www.wikidata.org/wiki/Q39072","display_name":"Microeconomics","level":1,"score":0.0},{"id":"https://openalex.org/C2524010","wikidata":"https://www.wikidata.org/wiki/Q8087","display_name":"Geometry","level":1,"score":0.0},{"id":"https://openalex.org/C17744445","wikidata":"https://www.wikidata.org/wiki/Q36442","display_name":"Political science","level":0,"score":0.0},{"id":"https://openalex.org/C204787440","wikidata":"https://www.wikidata.org/wiki/Q188504","display_name":"Alternative medicine","level":2,"score":0.0},{"id":"https://openalex.org/C142724271","wikidata":"https://www.wikidata.org/wiki/Q7208","display_name":"Pathology","level":1,"score":0.0},{"id":"https://openalex.org/C71924100","wikidata":"https://www.wikidata.org/wiki/Q11190","display_name":"Medicine","level":0,"score":0.0},{"id":"https://openalex.org/C199539241","wikidata":"https://www.wikidata.org/wiki/Q7748","display_name":"Law","level":1,"score":0.0},{"id":"https://openalex.org/C199360897","wikidata":"https://www.wikidata.org/wiki/Q9143","display_name":"Programming language","level":1,"score":0.0},{"id":"https://openalex.org/C162324750","wikidata":"https://www.wikidata.org/wiki/Q8134","display_name":"Economics","level":0,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/csf54842.2022.9919678","is_oa":false,"landing_page_url":"https://doi.org/10.1109/csf54842.2022.9919678","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2022 IEEE 35th Computer Security Foundations Symposium (CSF)","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[{"id":"https://metadata.un.org/sdg/16","display_name":"Peace, Justice and strong institutions","score":0.7699999809265137}],"awards":[{"id":"https://openalex.org/G3546341966","display_name":null,"funder_award_id":"2055599","funder_id":"https://openalex.org/F4320306076","funder_display_name":"National Science Foundation"}],"funders":[{"id":"https://openalex.org/F4320306076","display_name":"National Science Foundation","ror":"https://ror.org/021nxhr62"}],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":51,"referenced_works":["https://openalex.org/W111114747","https://openalex.org/W165274269","https://openalex.org/W182972476","https://openalex.org/W312279799","https://openalex.org/W1485280971","https://openalex.org/W1492842426","https://openalex.org/W1499934958","https://openalex.org/W1501386175","https://openalex.org/W1542455165","https://openalex.org/W1552897331","https://openalex.org/W1562226375","https://openalex.org/W1598324400","https://openalex.org/W1777311972","https://openalex.org/W1819824216","https://openalex.org/W1875574498","https://openalex.org/W1907580662","https://openalex.org/W1977305220","https://openalex.org/W1997859100","https://openalex.org/W2020218923","https://openalex.org/W2031015560","https://openalex.org/W2034791526","https://openalex.org/W2035527360","https://openalex.org/W2043944888","https://openalex.org/W2050209678","https://openalex.org/W2095077828","https://openalex.org/W2106217851","https://openalex.org/W2113085788","https://openalex.org/W2113446256","https://openalex.org/W2123845384","https://openalex.org/W2136530453","https://openalex.org/W2140376574","https://openalex.org/W2150509722","https://openalex.org/W2295268597","https://openalex.org/W2296362039","https://openalex.org/W2397423248","https://openalex.org/W2430991892","https://openalex.org/W2538970943","https://openalex.org/W2577421826","https://openalex.org/W2580257616","https://openalex.org/W2604903677","https://openalex.org/W2765706244","https://openalex.org/W2767399671","https://openalex.org/W2795196454","https://openalex.org/W2899303227","https://openalex.org/W2970724878","https://openalex.org/W3030905162","https://openalex.org/W4210300416","https://openalex.org/W6606658122","https://openalex.org/W6712237015","https://openalex.org/W6732110492","https://openalex.org/W6779385346"],"related_works":["https://openalex.org/W2564184999","https://openalex.org/W2915124127","https://openalex.org/W2151433956","https://openalex.org/W4386302629","https://openalex.org/W1499161345","https://openalex.org/W2920530813","https://openalex.org/W2129462878","https://openalex.org/W2028963818","https://openalex.org/W2392770010","https://openalex.org/W2165856924"],"abstract_inverted_index":{"Collusion-free":[0],"(CF)":[1],"and":[2,83,124,139,296],"collusion-preserving":[3,153],"(CP)":[4],"protocols":[5],"enrich":[6],"the":[7,38,48,85,99,114,129,132,165,184,221,234,250,279,282],"standard":[8,175],"security":[9,177,208,248,273],"offered":[10],"by":[11,72,98,227],"multi-party":[12],"computation":[13,120],"(MPC),":[14],"to":[15,41,117,141,203,243,263],"tackle":[16],"settings":[17],"where":[18,47],"subliminal":[19],"communication":[20,52],"is":[21,53,152,200,285],"undesirable.":[22],"However,":[23],"all":[24],"existing":[25,264],"solutions":[26],"make":[27],"arguably":[28],"unrealistic":[29],"assumptions":[30,88,127],"on":[31],"setups,":[32],"such":[33,66],"as":[34,158,160,270],"physical":[35,42],"presence":[36,251],"of":[37,51,60,65,131,167,237,247,252,259],"parties,":[39],"access":[40,140],"envelopes,":[43],"or":[44,287],"extreme":[45],"isolation,":[46],"only":[49],"means":[50],"a":[54,63,193,245,271],"star-topology":[55],"network.":[56],"The":[57],"above":[58,86,185],"state":[59,130],"affairs":[61],"remained":[62],"limitation":[64],"protocols,":[67],"which":[68,121,196,256,299],"was":[69],"even":[70,277],"reinforced":[71],"impossibility":[73],"results.":[74],"Thus,":[75],"for":[76,106],"years,":[77],"it":[78,199],"has":[79],"been":[80],"unclear":[81],"if":[82],"how":[84],"setup":[87,280],"could":[89],"be":[90,258],"relaxed":[91],"towards":[92],"more":[93,125],"realistic":[94],"scenarios.":[95],"Motivated":[96],"also":[97],"increasing":[100],"interest":[101],"in":[102,109,249,304],"using":[103],"hardware":[104,145,283],"tokens":[105],"cryptographic":[107],"applications,":[108],"this":[110,216],"work":[111],"we":[112,188,219,300],"provide":[113],"first":[115],"solution":[116,293],"collusion":[118],"preserving":[119],"uses":[122],"weaker":[123],"common":[126],"than":[128],"art,":[133],"i.e.,":[134],"an":[135,168],"authenticated":[136],"broadcast":[137],"functionality":[138],"honestly":[142],"generated":[143],"trusted":[144],"tokens.":[146],"We":[147],"prove":[148,301],"that":[149,198],"our":[150,171,190,267,291],"protocol":[151,172,191,268],"(in":[154],"short,":[155],"CP)":[156],"secure":[157],"long":[159],"no":[161],"parties":[162],"abort.":[163,182],"In":[164,289],"case":[166],"aborting":[169],"adversary,":[170],"still":[173],"achieves":[174,294],"(G)UC":[176],"with":[178,192,233],"identifiable":[179,295],"(and":[180,214],"unanimous)":[181],"Leveraging":[183],"identifiability":[186],"property,":[187],"augment":[189],"penalization":[194],"scheme":[195],"ensures":[197],"not":[201],"profitable":[202],"abort,":[204,298],"thereby":[205],"obtaining":[206],"CP":[207,235,306],"against":[209,274],"incentive-driven":[210,253],"attackers.":[211],"To":[212],"define":[213],"prove)":[215],"latter":[217],"result,":[218],"combine":[220],"Rational":[222],"Protocol":[223],"Design":[224],"(RPD)":[225],"methodology":[226],"Garay":[228],"et":[229,239],"al.":[230,240],"[FOCS":[231],"2013]":[232],"framework":[236],"Alwen":[238],"[CRYPTO":[241],"2012]":[242],"derive":[244],"definition":[246],"local":[254],"adversaries":[255],"can":[257],"independent":[260],"interest.":[261],"Similar":[262],"CP/CF":[265],"solutions,":[266],"preserves,":[269],"fallback,":[272],"monolithic":[275],"adversaries,":[276],"when":[278],"(i.e.,":[281],"tokens)":[284],"compromised":[286],"corrupted.":[288],"addition,":[290],"fallback":[292],"unanimous":[297],"are":[302],"impossible":[303],"previous":[305],"solutions.":[307]},"counts_by_year":[{"year":2025,"cited_by_count":1},{"year":2024,"cited_by_count":1},{"year":2023,"cited_by_count":1},{"year":2022,"cited_by_count":2}],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}