{"id":"https://openalex.org/W3205447747","doi":"https://doi.org/10.1145/3460120.3484814","title":"The Security of ChaCha20-Poly1305 in the Multi-User Setting","display_name":"The Security of ChaCha20-Poly1305 in the Multi-User Setting","publication_year":2021,"publication_date":"2021-11-12","ids":{"openalex":"https://openalex.org/W3205447747","doi":"https://doi.org/10.1145/3460120.3484814","mag":"3205447747"},"language":"en","primary_location":{"id":"doi:10.1145/3460120.3484814","is_oa":false,"landing_page_url":"https://doi.org/10.1145/3460120.3484814","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 SIGSAC Conference on Computer and Communications Security","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/A5035000097","display_name":"Jean Paul Degabriele","orcid":null},"institutions":[{"id":"https://openalex.org/I31512782","display_name":"Technical University of Darmstadt","ror":"https://ror.org/05n911h24","country_code":"DE","type":"education","lineage":["https://openalex.org/I31512782"]}],"countries":["DE"],"is_corresponding":true,"raw_author_name":"Jean Paul Degabriele","raw_affiliation_strings":["Technische Universit\u00e4t Darmstadt, Darmstadt, Germany"],"affiliations":[{"raw_affiliation_string":"Technische Universit\u00e4t Darmstadt, Darmstadt, Germany","institution_ids":["https://openalex.org/I31512782"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5050975875","display_name":"J\u00e9r\u00f4me Govinden","orcid":"https://orcid.org/0000-0003-2658-3251"},"institutions":[{"id":"https://openalex.org/I31512782","display_name":"Technical University of Darmstadt","ror":"https://ror.org/05n911h24","country_code":"DE","type":"education","lineage":["https://openalex.org/I31512782"]}],"countries":["DE"],"is_corresponding":false,"raw_author_name":"J\u00e9r\u00f4me Govinden","raw_affiliation_strings":["Technische Universit\u00e4t Darmstadt, Darmstadt, Germany"],"affiliations":[{"raw_affiliation_string":"Technische Universit\u00e4t Darmstadt, Darmstadt, Germany","institution_ids":["https://openalex.org/I31512782"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5101474325","display_name":"Felix G\u00fcnther","orcid":"https://orcid.org/0000-0002-8495-6610"},"institutions":[{"id":"https://openalex.org/I35440088","display_name":"ETH Zurich","ror":"https://ror.org/05a28rw58","country_code":"CH","type":"education","lineage":["https://openalex.org/I2799323385","https://openalex.org/I35440088"]}],"countries":["CH"],"is_corresponding":false,"raw_author_name":"Felix G\u00fcnther","raw_affiliation_strings":["ETH Zurich, Zurich, Switzerland"],"affiliations":[{"raw_affiliation_string":"ETH Zurich, Zurich, Switzerland","institution_ids":["https://openalex.org/I35440088"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5072987600","display_name":"Kenneth G. Paterson","orcid":"https://orcid.org/0000-0002-5145-4489"},"institutions":[{"id":"https://openalex.org/I35440088","display_name":"ETH Zurich","ror":"https://ror.org/05a28rw58","country_code":"CH","type":"education","lineage":["https://openalex.org/I2799323385","https://openalex.org/I35440088"]}],"countries":["CH"],"is_corresponding":false,"raw_author_name":"Kenneth G. Paterson","raw_affiliation_strings":["ETH Zurich, Zurich, Switzerland"],"affiliations":[{"raw_affiliation_string":"ETH Zurich, Zurich, Switzerland","institution_ids":["https://openalex.org/I35440088"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":4,"corresponding_author_ids":["https://openalex.org/A5035000097"],"corresponding_institution_ids":["https://openalex.org/I31512782"],"apc_list":null,"apc_paid":null,"fwci":1.7677,"has_fulltext":false,"cited_by_count":23,"citation_normalized_percentile":{"value":0.87662902,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":94,"max":99},"biblio":{"volume":null,"issue":null,"first_page":"1981","last_page":"2003"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10951","display_name":"Cryptographic Implementations and 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/T10951","display_name":"Cryptographic Implementations and 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/T11130","display_name":"Coding theory and cryptography","score":0.9997000098228455,"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/T10237","display_name":"Cryptography and Data Security","score":0.9991999864578247,"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/rekeying","display_name":"Rekeying","score":0.7404627203941345},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.6869474649429321},{"id":"https://openalex.org/keywords/cryptographic-nonce","display_name":"Cryptographic nonce","score":0.6739446520805359},{"id":"https://openalex.org/keywords/matching","display_name":"Matching (statistics)","score":0.5604873299598694},{"id":"https://openalex.org/keywords/upper-and-lower-bounds","display_name":"Upper and lower bounds","score":0.5580400824546814},{"id":"https://openalex.org/keywords/security-analysis","display_name":"Security analysis","score":0.5489219427108765},{"id":"https://openalex.org/keywords/computer-security","display_name":"Computer security","score":0.506016194820404},{"id":"https://openalex.org/keywords/set","display_name":"Set (abstract data type)","score":0.49100878834724426},{"id":"https://openalex.org/keywords/theoretical-computer-science","display_name":"Theoretical computer science","score":0.34681302309036255},{"id":"https://openalex.org/keywords/cryptography","display_name":"Cryptography","score":0.23307228088378906},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.22923040390014648},{"id":"https://openalex.org/keywords/encryption","display_name":"Encryption","score":0.15421807765960693},{"id":"https://openalex.org/keywords/statistics","display_name":"Statistics","score":0.09792420268058777}],"concepts":[{"id":"https://openalex.org/C127150765","wikidata":"https://www.wikidata.org/wiki/Q7310605","display_name":"Rekeying","level":4,"score":0.7404627203941345},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.6869474649429321},{"id":"https://openalex.org/C9996903","wikidata":"https://www.wikidata.org/wiki/Q1749235","display_name":"Cryptographic nonce","level":3,"score":0.6739446520805359},{"id":"https://openalex.org/C165064840","wikidata":"https://www.wikidata.org/wiki/Q1321061","display_name":"Matching (statistics)","level":2,"score":0.5604873299598694},{"id":"https://openalex.org/C77553402","wikidata":"https://www.wikidata.org/wiki/Q13222579","display_name":"Upper and lower bounds","level":2,"score":0.5580400824546814},{"id":"https://openalex.org/C38369872","wikidata":"https://www.wikidata.org/wiki/Q7445009","display_name":"Security analysis","level":2,"score":0.5489219427108765},{"id":"https://openalex.org/C38652104","wikidata":"https://www.wikidata.org/wiki/Q3510521","display_name":"Computer security","level":1,"score":0.506016194820404},{"id":"https://openalex.org/C177264268","wikidata":"https://www.wikidata.org/wiki/Q1514741","display_name":"Set (abstract data type)","level":2,"score":0.49100878834724426},{"id":"https://openalex.org/C80444323","wikidata":"https://www.wikidata.org/wiki/Q2878974","display_name":"Theoretical computer science","level":1,"score":0.34681302309036255},{"id":"https://openalex.org/C178489894","wikidata":"https://www.wikidata.org/wiki/Q8789","display_name":"Cryptography","level":2,"score":0.23307228088378906},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.22923040390014648},{"id":"https://openalex.org/C148730421","wikidata":"https://www.wikidata.org/wiki/Q141090","display_name":"Encryption","level":2,"score":0.15421807765960693},{"id":"https://openalex.org/C105795698","wikidata":"https://www.wikidata.org/wiki/Q12483","display_name":"Statistics","level":1,"score":0.09792420268058777},{"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/C134306372","wikidata":"https://www.wikidata.org/wiki/Q7754","display_name":"Mathematical analysis","level":1,"score":0.0},{"id":"https://openalex.org/C17886624","wikidata":"https://www.wikidata.org/wiki/Q1320561","display_name":"Key management","level":3,"score":0.0}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.1145/3460120.3484814","is_oa":false,"landing_page_url":"https://doi.org/10.1145/3460120.3484814","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 SIGSAC Conference on Computer and Communications Security","raw_type":"proceedings-article"},{"id":"pmh:oai:tubiblio.ulb.tu-darmstadt.de:139059","is_oa":false,"landing_page_url":"http://tubiblio.ulb.tu-darmstadt.de/139059/","pdf_url":null,"source":{"id":"https://openalex.org/S4377196390","display_name":"TUbilio (Technical University of Darmstadt)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I31512782","host_organization_name":"Technische Universit\u00e4t Darmstadt","host_organization_lineage":["https://openalex.org/I31512782"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"","raw_type":"Konferenzver\u00f6ffentlichung"}],"best_oa_location":null,"sustainable_development_goals":[{"display_name":"Peace, Justice and strong institutions","score":0.4300000071525574,"id":"https://metadata.un.org/sdg/16"}],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":21,"referenced_works":["https://openalex.org/W55486550","https://openalex.org/W252592998","https://openalex.org/W588424841","https://openalex.org/W1485280854","https://openalex.org/W1504211573","https://openalex.org/W1587463421","https://openalex.org/W1763079358","https://openalex.org/W1964776377","https://openalex.org/W2090529730","https://openalex.org/W2162653919","https://openalex.org/W2262479410","https://openalex.org/W2497610130","https://openalex.org/W2512006651","https://openalex.org/W2548640435","https://openalex.org/W2768802245","https://openalex.org/W2794569840","https://openalex.org/W2803805344","https://openalex.org/W2891609868","https://openalex.org/W2908669990","https://openalex.org/W2915352631","https://openalex.org/W2949813050"],"related_works":["https://openalex.org/W2109538941","https://openalex.org/W4392666870","https://openalex.org/W4386794377","https://openalex.org/W2484943245","https://openalex.org/W2954455763","https://openalex.org/W2967369616","https://openalex.org/W1793926990","https://openalex.org/W110296006","https://openalex.org/W2768296225","https://openalex.org/W3205447747"],"abstract_inverted_index":{"The":[0,41],"ChaCha20-Poly1305":[1,34,72,145],"AEAD":[2,69],"scheme":[3],"is":[4,51],"being":[5],"increasingly":[6],"widely":[7],"deployed":[8],"in":[9,16,80,121],"practice.":[10],"Practitioners":[11],"need":[12],"proven":[13],"security":[14,31,65,70,110,132],"bounds":[15,99,133],"order":[17],"to":[18,108,116],"set":[19],"data":[20],"limits":[21],"and":[22,50,73,94,124,126],"rekeying":[23],"intervals":[24],"for":[25,53,100,134],"the":[26,29,54,68,75,97,117,130,148],"scheme.":[27],"But":[28],"formal":[30],"analysis":[32,44],"of":[33,39,71,77,144],"currently":[35],"lags":[36],"behind":[37],"that":[38,146],"AES-GCM.":[40],"only":[42,52],"extant":[43],"(Procter,":[45],"2014)":[46],"contains":[47],"a":[48,63,139],"flaw":[49],"single-user":[55],"setting.":[56],"We":[57,61,86,112],"rectify":[58],"this":[59],"situation.":[60],"prove":[62],"multi-user":[64],"bound":[66,82,90,115],"on":[67],"establish":[74],"tightness":[76],"each":[78],"term":[79],"our":[81,89,114,152],"through":[83],"matching":[84],"attacks.":[85],"show":[87],"how":[88,103],"differs":[91],"both":[92],"qualitatively":[93],"quantitatively":[95],"from":[96],"known":[98],"AES-GCM,":[101],"highlighting":[102],"subtle":[104],"design":[105],"choices":[106],"lead":[107],"distinctive":[109],"properties.":[111],"translate":[113],"nonce-randomized":[118],"setting":[119],"employed":[120],"TLS":[122],"1.3":[123],"elsewhere,":[125],"we":[127,137],"additionally":[128],"improve":[129],"corresponding":[131],"GCM.":[135],"Finally,":[136],"provide":[138],"simple":[140],"yet":[141],"stronger":[142],"variant":[143],"addresses":[147],"deficiencies":[149],"highlighted":[150],"by":[151],"analysis.":[153]},"counts_by_year":[{"year":2026,"cited_by_count":1},{"year":2025,"cited_by_count":9},{"year":2024,"cited_by_count":11},{"year":2023,"cited_by_count":2}],"updated_date":"2026-02-26T08:16:20.718346","created_date":"2025-10-10T00:00:00"}