{"id":"https://openalex.org/W3003987622","doi":"https://doi.org/10.1145/3372297.3417887","title":"The Signal Private Group System and Anonymous Credentials Supporting Efficient Verifiable Encryption","display_name":"The Signal Private Group System and Anonymous Credentials Supporting Efficient Verifiable Encryption","publication_year":2020,"publication_date":"2020-10-30","ids":{"openalex":"https://openalex.org/W3003987622","doi":"https://doi.org/10.1145/3372297.3417887","mag":"3003987622"},"language":"en","primary_location":{"id":"doi:10.1145/3372297.3417887","is_oa":false,"landing_page_url":"https://doi.org/10.1145/3372297.3417887","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Proceedings of the 2020 ACM SIGSAC Conference on Computer and Communications Security","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/A5016806686","display_name":"Melissa Chase","orcid":"https://orcid.org/0009-0003-8333-3942"},"institutions":[{"id":"https://openalex.org/I1290206253","display_name":"Microsoft (United States)","ror":"https://ror.org/00d0nc645","country_code":"US","type":"company","lineage":["https://openalex.org/I1290206253"]}],"countries":["US"],"is_corresponding":true,"raw_author_name":"Melissa Chase","raw_affiliation_strings":["Microsoft Research, Redmond, WA, USA","Microsoft Research, redmond, WA, USA#TAB#"],"affiliations":[{"raw_affiliation_string":"Microsoft Research, Redmond, WA, USA","institution_ids":["https://openalex.org/I1290206253"]},{"raw_affiliation_string":"Microsoft Research, redmond, WA, USA#TAB#","institution_ids":["https://openalex.org/I1290206253"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5026099988","display_name":"Trevor Perrin","orcid":null},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Trevor Perrin","raw_affiliation_strings":["Signal Technology Foundation, Oakland, CA, USA"],"affiliations":[{"raw_affiliation_string":"Signal Technology Foundation, Oakland, CA, USA","institution_ids":[]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5002192541","display_name":"Greg Zaverucha","orcid":null},"institutions":[{"id":"https://openalex.org/I1290206253","display_name":"Microsoft (United States)","ror":"https://ror.org/00d0nc645","country_code":"US","type":"company","lineage":["https://openalex.org/I1290206253"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Greg Zaverucha","raw_affiliation_strings":["Microsoft Research, Redmond, WA, USA","Microsoft Research, redmond, WA, USA#TAB#"],"affiliations":[{"raw_affiliation_string":"Microsoft Research, Redmond, WA, USA","institution_ids":["https://openalex.org/I1290206253"]},{"raw_affiliation_string":"Microsoft Research, redmond, WA, USA#TAB#","institution_ids":["https://openalex.org/I1290206253"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":3,"corresponding_author_ids":["https://openalex.org/A5016806686"],"corresponding_institution_ids":["https://openalex.org/I1290206253"],"apc_list":null,"apc_paid":null,"fwci":0.58743819,"has_fulltext":false,"cited_by_count":5,"citation_normalized_percentile":{"value":0.71399109,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":95},"biblio":{"volume":"2019","issue":null,"first_page":"1445","last_page":"1459"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10237","display_name":"Cryptography and Data Security","score":0.9994999766349792,"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":0.9994999766349792,"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/T11504","display_name":"Advanced Authentication Protocols Security","score":0.9836999773979187,"subfield":{"id":"https://openalex.org/subfields/1705","display_name":"Computer Networks and Communications"},"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/T11498","display_name":"Security in Wireless Sensor Networks","score":0.977400004863739,"subfield":{"id":"https://openalex.org/subfields/1705","display_name":"Computer Networks and Communications"},"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/encryption","display_name":"Encryption","score":0.7364153861999512},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.7003228664398193},{"id":"https://openalex.org/keywords/elgamal-encryption","display_name":"ElGamal encryption","score":0.6329947710037231},{"id":"https://openalex.org/keywords/group-signature","display_name":"Group signature","score":0.5938684940338135},{"id":"https://openalex.org/keywords/computer-security","display_name":"Computer security","score":0.530643880367279},{"id":"https://openalex.org/keywords/credential","display_name":"Credential","score":0.4790264666080475},{"id":"https://openalex.org/keywords/theoretical-computer-science","display_name":"Theoretical computer science","score":0.467172235250473},{"id":"https://openalex.org/keywords/verifiable-secret-sharing","display_name":"Verifiable secret sharing","score":0.46027326583862305},{"id":"https://openalex.org/keywords/group","display_name":"Group (periodic table)","score":0.4461888074874878},{"id":"https://openalex.org/keywords/zero-knowledge-proof","display_name":"Zero-knowledge proof","score":0.4219967722892761},{"id":"https://openalex.org/keywords/anonymity","display_name":"Anonymity","score":0.41792625188827515},{"id":"https://openalex.org/keywords/public-key-cryptography","display_name":"Public-key cryptography","score":0.3930794298648834},{"id":"https://openalex.org/keywords/cryptography","display_name":"Cryptography","score":0.3637974262237549},{"id":"https://openalex.org/keywords/programming-language","display_name":"Programming language","score":0.12620201706886292}],"concepts":[{"id":"https://openalex.org/C148730421","wikidata":"https://www.wikidata.org/wiki/Q141090","display_name":"Encryption","level":2,"score":0.7364153861999512},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.7003228664398193},{"id":"https://openalex.org/C11045955","wikidata":"https://www.wikidata.org/wiki/Q1162410","display_name":"ElGamal encryption","level":4,"score":0.6329947710037231},{"id":"https://openalex.org/C148408913","wikidata":"https://www.wikidata.org/wiki/Q5611269","display_name":"Group signature","level":4,"score":0.5938684940338135},{"id":"https://openalex.org/C38652104","wikidata":"https://www.wikidata.org/wiki/Q3510521","display_name":"Computer security","level":1,"score":0.530643880367279},{"id":"https://openalex.org/C2777810591","wikidata":"https://www.wikidata.org/wiki/Q16861606","display_name":"Credential","level":2,"score":0.4790264666080475},{"id":"https://openalex.org/C80444323","wikidata":"https://www.wikidata.org/wiki/Q2878974","display_name":"Theoretical computer science","level":1,"score":0.467172235250473},{"id":"https://openalex.org/C85847156","wikidata":"https://www.wikidata.org/wiki/Q59015987","display_name":"Verifiable secret sharing","level":3,"score":0.46027326583862305},{"id":"https://openalex.org/C2781311116","wikidata":"https://www.wikidata.org/wiki/Q83306","display_name":"Group (periodic table)","level":2,"score":0.4461888074874878},{"id":"https://openalex.org/C176329583","wikidata":"https://www.wikidata.org/wiki/Q191943","display_name":"Zero-knowledge proof","level":3,"score":0.4219967722892761},{"id":"https://openalex.org/C178005623","wikidata":"https://www.wikidata.org/wiki/Q308859","display_name":"Anonymity","level":2,"score":0.41792625188827515},{"id":"https://openalex.org/C203062551","wikidata":"https://www.wikidata.org/wiki/Q201339","display_name":"Public-key cryptography","level":3,"score":0.3930794298648834},{"id":"https://openalex.org/C178489894","wikidata":"https://www.wikidata.org/wiki/Q8789","display_name":"Cryptography","level":2,"score":0.3637974262237549},{"id":"https://openalex.org/C199360897","wikidata":"https://www.wikidata.org/wiki/Q9143","display_name":"Programming language","level":1,"score":0.12620201706886292},{"id":"https://openalex.org/C178790620","wikidata":"https://www.wikidata.org/wiki/Q11351","display_name":"Organic chemistry","level":1,"score":0.0},{"id":"https://openalex.org/C185592680","wikidata":"https://www.wikidata.org/wiki/Q2329","display_name":"Chemistry","level":0,"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}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.1145/3372297.3417887","is_oa":false,"landing_page_url":"https://doi.org/10.1145/3372297.3417887","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Proceedings of the 2020 ACM SIGSAC Conference on Computer and Communications Security","raw_type":"proceedings-article"},{"id":"mag:3003987622","is_oa":false,"landing_page_url":"https://eprint.iacr.org/2019/1416.pdf","pdf_url":null,"source":{"id":"https://openalex.org/S2764847869","display_name":"IACR Cryptology ePrint Archive","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":["https://openalex.org/P4322614454"],"host_organization_lineage_names":["Cryptology ePrint Archive"],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"IACR Cryptology ePrint Archive","raw_type":null}],"best_oa_location":null,"sustainable_development_goals":[{"display_name":"Partnerships for the goals","score":0.5299999713897705,"id":"https://metadata.un.org/sdg/17"}],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":16,"referenced_works":["https://openalex.org/W170174611","https://openalex.org/W1576428636","https://openalex.org/W1583834646","https://openalex.org/W1589034595","https://openalex.org/W1656678770","https://openalex.org/W1763079358","https://openalex.org/W1851031742","https://openalex.org/W1888254701","https://openalex.org/W1910751411","https://openalex.org/W2031618446","https://openalex.org/W2100460660","https://openalex.org/W2106332032","https://openalex.org/W2134244876","https://openalex.org/W2438407744","https://openalex.org/W2504485978","https://openalex.org/W6674566148"],"related_works":["https://openalex.org/W3109364115","https://openalex.org/W32391769","https://openalex.org/W2265345255","https://openalex.org/W2396712672","https://openalex.org/W2908345802","https://openalex.org/W2058537114","https://openalex.org/W2913667878","https://openalex.org/W3029973168","https://openalex.org/W2810511838","https://openalex.org/W2022121285","https://openalex.org/W2187610400","https://openalex.org/W2804537334","https://openalex.org/W1567413650","https://openalex.org/W1978885891","https://openalex.org/W3007354358","https://openalex.org/W1975190864","https://openalex.org/W2342926708","https://openalex.org/W3047014031","https://openalex.org/W2181835183","https://openalex.org/W2739932280"],"abstract_inverted_index":{"In":[0,55],"this":[1],"paper":[2],"we":[3,113],"present":[4],"a":[5,9,15,59,81,105,108,115,126,186],"system":[6,203],"for":[7,18,207],"maintaining":[8],"membership":[10,35,65],"list":[11],"of":[12,69,73,129,134,159,195],"users":[13],"in":[14,20,66,80,101,125,144,177,200],"group,":[16],"designed":[17],"use":[19],"the":[21,47,53,56,63,67,74,78,97,135,157,180,192,202],"Signal":[22],"Messenger":[23],"secure":[24],"messaging":[25],"app.":[26],"The":[27,132],"goal":[28],"is":[29,37,138,183,204],"to":[30,40,77,89,164,175],"support":[31,151],"private":[32],"groups":[33],"where":[34],"information":[36],"readily":[38],"available":[39],"all":[41,198],"group":[42,64,75,127,166],"members":[43],"but":[44],"hidden":[45],"from":[46],"service":[48],"provider":[49],"or":[50],"anyone":[51],"outside":[52],"group.":[54],"proposed":[57],"solution,":[58],"central":[60],"server":[61,79],"stores":[62],"form":[68],"encrypted":[70,91,98,181],"entries.":[71,99],"Members":[72],"authenticate":[76],"way":[82],"that":[83,86,139,153,179],"reveals":[84],"only":[85,150],"they":[87],"correspond":[88],"some":[90],"entry,":[92],"then":[93],"read":[94],"and":[95,112,174,191],"write":[96],"Authentication":[100],"our":[102],"design":[103],"uses":[104],"primitive":[106],"called":[107],"keyed-verification":[109],"anonymous":[110],"credential~(KVAC),":[111],"construct":[114],"new":[116,136],"KVAC":[117,137],"scheme":[118],"based":[119],"on":[120],"an":[121,169],"algebraic":[122],"MAC,":[123],"instantiated":[124,199],"G":[128,201],"prime":[130],"order.":[131],"benefit":[133],"attributes":[140,152],"may":[141],"be":[142],"elements":[143],"G,":[145],"whereas":[146],"previous":[147],"schemes":[148],"could":[149],"were":[154],"integers":[155],"modulo":[156],"order":[158],"G.":[160],"This":[161],"enables":[162],"us":[163],"encrypt":[165],"data":[167,182],"using":[168],"efficient":[170],"Elgamal-like":[171],"encryption":[172],"scheme,":[173],"prove":[176],"zero-knowledge":[178],"certified":[184],"by":[185],"credential.":[187],"Because":[188],"encryption,":[189],"authentication,":[190],"associated":[193],"proofs":[194],"knowledge":[196],"are":[197],"efficient,":[205],"even":[206],"large":[208],"groups.":[209]},"counts_by_year":[{"year":2024,"cited_by_count":1},{"year":2022,"cited_by_count":1},{"year":2021,"cited_by_count":2},{"year":2020,"cited_by_count":1}],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}
