Lecture Notes in Computer Science

Last,butnotleast,wewouldliketothankallthepeoplewhosubmittedtheir paperstotheconference(includingthosewhosesubmissionswerenotsuccessful), aswellastheworkshopparticipantsfromaroundtheworld,fortheirsupport whichmadethisconferencepossible. March1999 UniversityofTokyo,Japan HidekiImai MonashUniversity,Melbourne,Australia YuliangZheng PKC'99 1999InternationalWorkshop onPracticeandTheory inPublicKeyCryptography KamakuraPrinceHotel,Kamakura,Japan March1-3,1999 Incooperationwith TheTechnicalGrouponInformationSecurity,theInstituteof Electronics,InformationandCommunicationEngineers(IEICE) OrganizingCommittee HidekiImai,Chair (UniversityofTokyo,Japan) TakashiMano (IPA,Japan) KantaMatsuura (UniversityofTokyo,Japan) HidenoriShida (UniversityofTokyo,Japan) YuliangZheng (MonashUniversity,Australia) ProgramCommittee HidekiImai,Co-Chair (UniversityofTokyo,Japan) YuliangZheng,Co-Chair (MonashUniversity,Australia) Chin-ChenChang (NationalChungChengUniversity,Taiwan) YvoDesmedt (UniversityofWisconsin-Milwaukee,USA) KwangjoKim (InformationandCommunicationsUniversity,Korea) MarkusJakobsson (BellLabs,USA) ArjenLenstra (Citibank,USA) TsutomuMatsumoto (YokohamaNationalUniversity,Japan) EijiOkamoto (JAIST,Japan) TatsuakiOkamoto (NTT,Japan) NigelSmart (HPLabsBristol,UK) Contents ANewTypeofMagicInk"Signatures|Towards Transcript-IrrelevantAnonymityRevocation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 FengBaoandRobertH. Deng(KentRidgeDigitalLabs,Singapore) ANewAspectofDualBasisforE cientFieldArithmetic . . . . . . . . . . . . . . . . . 12 Chang-HyiLee(SAIT,Korea) Jong-InLim(KoreaUni) OntheSecurityofRandomSources. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 Jean-S ebastienCoron(ENSandGemplus,France) AnonymousFingerprintingBasedonCommitted ObliviousTransfer. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43 JosepDomingo-Ferrer(UniRoviraiVirgili,Spain) HowtoEnhancetheSecurityofPublic-Key EncryptionatMinimumCost. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53 EiichiroFujisakiandTatsuakiOkamoto(NTT,Japan) EncryptedMessageAuthenticationbyFirewalls. . . . . . . . . . . . . . . . . . . . . . . . . . . . 69 ChandanaGamage,JussipekkaLeiwoand YuliangZheng(MonashUni,Australia) ARelationshipbetweenOne-Waynessand CorrelationIntractability. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82 SatoshiHadaandToshiakiTanaka(KDD,Japan) MessageRecoveryFairBlindSignature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97 Hyung-WooLeeandTai-YunKim(KoreaUni) OnQuorumControlledAsymmetricProxyRe-encryption. . . . . . . . . . . . . . . . . 112 MarkusJakobsson(BellLabs,USA) Mini-Cash:AMinimalisticApproachtoE-Commerce. . . . . . . . . . . . . . . . . . . . . 122 MarkusJakobsson(BellLabs,USA) PreservingPrivacyinDistributedDelegation withFastCerti cates . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 136 PekkaNikander(Ericsson,Finland) YkiKortesniemiandJonnaPartanen(HelsinkiUniofTech,Finland) UnknownKey-ShareAttacksontheStation-to-Station(STS)Protocol. . . . 154 SimonBlake-Wilson(Certicom,Canada) AlfredMenezes(UniofWaterloo,Canada) TowardFairInternationalKeyEscrow{AnAttemptbyDistributed TrustedThirdAgencieswithThresholdCryptography{ . . . . . . . . . . . . . . . . . . 171 ShingoMiyazaki(KyushuUniv,Japan) IkukoKuroda(NTT,Japan) KouichiSakurai(KyushuUniv,Japan) HowtoCopyrightaFunction?. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 188 DavidNaccache(Gemplus,France) AdiShamir(WeizmannInstofSci,Israel) JulienP. Stern(UCL,Belgium,andUnideParis-Sud,France) OntheSecurityofRSAScreening. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 197 Jean-S ebastienCoron(ENSandGemplus,France) DavidNaccache(Gemplus,France) TheE ectivenessofL