Giuseppe Ateniese Daniele Venturi (Eds.) 9 6 2 Applied Cryptography 3 1 S C and Network Security N L 20th International Conference, ACNS 2022 Rome, Italy, June 20–23, 2022 Proceedings Lecture Notes in Computer Science 13269 FoundingEditors GerhardGoos KarlsruheInstituteofTechnology,Karlsruhe,Germany JurisHartmanis CornellUniversity,Ithaca,NY,USA EditorialBoardMembers ElisaBertino PurdueUniversity,WestLafayette,IN,USA WenGao PekingUniversity,Beijing,China BernhardSteffen TUDortmundUniversity,Dortmund,Germany MotiYung ColumbiaUniversity,NewYork,NY,USA Moreinformationaboutthisseriesathttps://link.springer.com/bookseries/558 · Giuseppe Ateniese Daniele Venturi (Eds.) Applied Cryptography and Network Security 20th International Conference, ACNS 2022 Rome, Italy, June 20–23, 2022 Proceedings Editors GiuseppeAteniese DanieleVenturi StevensInstituteofTechnology SapienzaUniversityofRome Hoboken,NJ,USA Rome,Italy ISSN 0302-9743 ISSN 1611-3349 (electronic) LectureNotesinComputerScience ISBN 978-3-031-09233-6 ISBN 978-3-031-09234-3 (eBook) https://doi.org/10.1007/978-3-031-09234-3 ©SpringerNatureSwitzerlandAG2022 Thisworkissubjecttocopyright.AllrightsarereservedbythePublisher,whetherthewholeorpartofthe material is concerned, specifically the rights of translation, reprinting, reuse of illustrations, recitation, broadcasting, reproduction on microfilms or in any other physical way, and transmission or information storageandretrieval,electronicadaptation,computersoftware,orbysimilarordissimilarmethodologynow knownorhereafterdeveloped. Theuseofgeneraldescriptivenames,registerednames,trademarks,servicemarks,etc.inthispublication doesnotimply,evenintheabsenceofaspecificstatement,thatsuchnamesareexemptfromtherelevant protectivelawsandregulationsandthereforefreeforgeneraluse. Thepublisher,theauthors,andtheeditorsaresafetoassumethattheadviceandinformationinthisbookare believedtobetrueandaccurateatthedateofpublication.Neitherthepublishernortheauthorsortheeditors give a warranty, expressed or implied, with respect to the material contained herein or for any errors or omissionsthatmayhavebeenmade.Thepublisherremainsneutralwithregardtojurisdictionalclaimsin publishedmapsandinstitutionalaffiliations. ThisSpringerimprintispublishedbytheregisteredcompanySpringerNatureSwitzerlandAG Theregisteredcompanyaddressis:Gewerbestrasse11,6330Cham,Switzerland Preface We are pleased to present the proceedings of the 20th International Conference on Applied Cryptography and Network Security (ACNS 2022). ACNS 2022 was held in Rome, Italy. Due to the ongoing COVID-19 crisis, we decided to have a hybrid conference to face any health risks or travel restrictions for attending the conference. TheorganizationwasinthecapablehandsofMauroConti(UniversityofPadua,Italy) and Angelo Spognardi (Sapienza University of Rome, Italy) as general co-chairs, and MassimoBernaschi(NationalResearchCouncil,IAC-CNR,Italy)andFabioDeGaspari (SapienzaUniversityofRome,Italy)aslocalorganizingchairs.Wearedeeplyindebted to them for their tireless work to ensure the success of the conference even in such complexconditions. For the third time, ACNS had two rounds of submission cycles, with deadlines in September2021andJanuary2022,respectively.Wereceivedatotalof185submissions fromauthorsin37countries.Thisyear’sProgramCommittee(PC)consistedofaround 150memberswithdiversebackgroundsandbroadresearchinterests.Thereviewprocess was double-blind and rigorous, and papers were evaluated on the basis of research significance,novelty,andtechnicalquality.Intotal,691reviewsweresubmitted,with fourreviewsformostpapers.Somepaperssubmittedinthefirstroundreceivedadecision of major revision. The revised versions of those papers were further evaluated in the secondroundandsomeofthemwereaccepted.Afterthereviewprocessconcluded,a totalof44paperswereacceptedtobepresentedattheconferenceandincludedinthe proceedings,representinganacceptancerateofaround24%. Amongthosepapers,weawardedtheBestStudentPaperAwardtoNarmeenShafqat (NortheasternUniversity,Boston,MA,USA)forthepaper“ZLeaks:PassiveInference Attacks on Zigbee based Smart Homes” (co-authored with Daniel J. Dubois, David Choffnes,AaronSchulman,DineshBharadia,andAanjhanRanganathan).Themonetary prizeof1,000eurowasgenerouslysponsoredbySpringer. We had a rich program including eight satellite workshops in parallel with the main event, providing a forum to address specific topics at the forefront of cybersecurity research. The papers presented at those workshops were published in separateproceedings. Thisyearwehadtwooutstandingkeynotetalks:“ChosenCiphertextSecurityfrom InjectiveTrapdoorFunctions”byProf.SusanHohenbergerWaters(JohnsHopkinsUni- versity,USA),and“SecureComputationinPractice”byProf.RalucaAdaPopa(Univer- sityofCalifornia,Berkeley,USA).Tothem,ourheartfeltgratitudefortheiroutstanding presentations. Theconferencewasmadepossiblebytheuntiringeffortsofmanyindividualsand organizations. We are grateful to all the authors for their submissions. We sincerely appreciatetheoutstandingworkofallthePCmembersandtheexternalreviewers,who selected the papers after reading, commenting, and debating them. Finally, we thank all the people who volunteered their time and energy to put together the conference, the speakers and session chairs, and everyone who contributed to the success of the vi Preface conference.WearealsogratefultoRiccardoLazzeretti(SapienzaUniversityofRome, Italy) for taking care of these proceedings. Last, but certainly not least, we are very grateful to Frontiers for sponsoring the conference, Easychair for the management of thesubmissions,andSpringerfortheirhelpinassemblingtheseproceedings. June2022 DanieleVenturi GiuseppeAteniese Organization GeneralChairs MauroConti UniversityofPadua,Italy AngeloSpognardi SapienzaUniversityofRome,Italy ProgramChairs GiuseppeAteniese StevensInstituteofTechnology,USA DanieleVenturi SapienzaUniversityofRome,Italy WorkshopChair JianyingZhou SingaporeUniversityofTechnologyandDesign, Singapore PosterChair EmilianoCasalicchio SapienzaUniversityofRome,Italy LocalOrganization Chairs MassimoBernaschi NationalCouncilofResearch,Italy FabioDeGaspari SapienzaUniversityofRome,Italy PublicityChair AlessandroBrighente UniversityofPadua,Italy PublicationChair RiccardoLazzeretti SapienzaUniversityofRome,Italy WebChair AliciaK.Bidi SapienzaUniversityofRome,Italy viii Organization ProgramCommittee MasayukiAbe NTT,Japan MitsuakiAkiyama NTT,Japan CristinaAlcaraz UniversityofMalaga,Spain GiuseppeAteniese GeorgeMasonUniversity,USA XiaolongBai AlibabaGroup,China LejlaBatina RadboudUniversity,TheNetherlands CarstenBaum AarhusUniversity,Denmark EstuardoBock AaltoUniversity,Finland MatteoCampanelli ProtocolLabs,Denmark IgnacioCascudo IMDEASoftwareInstitute,Spain SangKilCha KoreaAdvancedInstituteofScienceand Technology,SouthKorea SudiptaChattopadhyay SingaporeUniversityofTechnologyandDesign, Singapore ShermanS.M.Chow ChineseUniversityofHongKong,HongKong MicheleCiampi UniversityofEdinburgh,UK MauroConti UniversityofPadua,Italy SandroCoretti IOHK,Switzerland MarcDacier QatarComputingResearchInstitute,Qatar RobertoDiPietro HamadBinKhalifaUniversity,Qatar JosepDomingo-Ferrer UniversitatRoviraiVirgili,Spain NicoDöttling AarhusUniversity,Denmark AntonioFaonio EURECOM,France PrastudyFauzi SimulaUiB,Norway TommasoGagliardoni KudelskiSecurity,Switzerland ChayaGanesh AarhusUniversity,Denmark DebinGao SingaporeManagementUniversity,Singapore PaoloGasti NewYorkInstituteofTechnology,USA EshaGhosh Microsoft,USA YongGuan IowaStateUniversity,USA SusanHohenberger JohnsHopkinsUniversity,USA Hsu-ChunHsiao NationalTaiwanUniversity,China HongxinHu UniversityatBuffalo,SUNY,USA XinyiHuang FujianNormalUniversity,China SotirisIoannidis TechnicalUniversityofCrete,Greece HaiJin HuazhongUniversityofScienceandTechnology, China StefanKatzenbeisser UniversityofPassau,Germany KwokYanLam NanyangTechnologicalUniversity,Singapore PeeterLaud CyberneticaAS,Estonia XiapuLuo HongKongPolytechnicUniversity,HongKong Organization ix BernardoMagri AarhusUniversity,Denmark MarkManulis UniversitätderBundeswehrMünchen,Germany GiorgiaAzzurraMarson NECLabsEurope,Germany DanielMasny Meta,USA ChristianMatt Concordium,Switzerland VashekMatyas MasarykUniversity,CzechRepublic VeelashaMoonsamy RuhrUniversityBochum,Germany PratyayMukherjee HederaHashgraph/Swirlds,USA DavidNaccache ENS,France ArielNof Technion,Israel SabineOechsner UniversityofEdinburgh,UK CristinaOnete UniversitédeLimoges,France GerardoPelosi PolitecnicodiMilano,Italy GiuseppePersiano UniversitàdegliStudidiSalerno,Italy ThomasPeters UniversitécatholiquedeLouvain,Belgium JosefPieprzyk CSIRO/Data61,Australia BertramPoettering IBMResearch-Zurich,Switzerland DivyaRavi AarhusUniversity,Denmark ReihanehSafavi-Naini UniversityofCalgary,Canada NiteshSaxena TexasA&MUniversity,USA JannoSiim UniversityofTartu,Finland MarkSimkin EthereumFoundation AngeloSpognardi SapienzaUniversitàdiRoma,Italy PuruiSu InstituteofSoftware,CAS,China QiangTang UniversityofSydney,Australia MehdiTibouchi NTT,Japan DanielTschudi Concordium,Switzerland YiannisTselekounis UniversityofEdinburgh DanieleVenturi SapienzaUniversityofRome,Italy IvanVisconti UniversityofSalerno,Italy CongWang CityUniversityofHongKong,HongKong ZhaoyanXu PaloAltoNetworks,USA ChaoZhang TsinghuaUniversity,China FanZhang ZhejiangUniversity,China KehuanZhang ChineseUniversityofHongKong,HongKong YinqianZhang SouthernUniversityofScienceandTechnology, China Hong-ShengZhou VirginiaCommonwealthUniversity,USA JianyingZhou SingaporeUniversityofTechnologyandDesign, Singapore YajinZhou ZhejiangUniversity,China