Hideki Imai – författare

Addressing the fast-growing need to integrate effective security features into wireless communication systems, this cutting-edge book offers a broad overview of wireless security, so engineers can choose the methods and techniques that are most appropriate for their projects. Professionals gain a solid understanding of critical cryptography techniques, such as private/public key encryption, digital signatures, and block and stream ciphers. The book provides expert guidance on how to evaluate cryptography deployment impact on current wireless network architectures and implement an effective cryptography architecture for any organization. This forward-looking resource offers the technical know-how practitioners need to understand and work with the security concepts and techniques used for 2nd, 3rd, and 4th generation mobile networks.

The 25 revised full papers presented here together with 7 invited papers address subjects such as block codes; algebra and codes: rings, fields, and AG codes; cryptography; sequences; decoding algorithms; and algebra: constructions in algebra, Galois groups, differential algebra, and polynomials.

This volume contains the proceedings of ASIACRYPT '91, the first international conference on the theory and application of cryptology to be held in the Asian area. It was held at Fujiyoshida, near Mount Fuji in Japan, in November 1991. The conference was modeled after the very successful CRYTO and EUROCRYPT series of conferences sponsored by the International Association for Cryptologic Research (IACR). The IACR and the Institute of Electronics, Information and Communication Engineers were sponsors for ASIACRYPT '91. The papers from the conference were improved and corrected for inclusion in this volume. The papers are grouped into parts on: differential cryptanalysis and DES-like cryptosystems; hashing and signature schemes; secret sharing, threshold, and authentication codes; block ciphers - foundations and analysis; cryptanalysis and new ciphers; proof systems and interactive protocols; public key ciphers - foundations and analysis. Also included are four invited lectures and impromptu talks from the rump session.

This book constitutes the refereed proceedings of the First International Workshop on Practice and Theory in Public Key Cryptography, PKC'98, held in Pacifico Yokohama, Japan, in February 1998.The volume presents four invited contributions together with 18 revised full papers selected from 30 submissions. The papers address all current issues in research and design in the area including digital signature schemes, digital payment systems, electronic commerce, cryptographic protocols, as well as foundational issues like integer factorization, elliptic curve aspects, hash functions, finite fields, etc.

ThePKC'99conference,heldintheancientcapitalofKamakura,Japan,March 1-3,1999,representsthesecondconferenceintheinternationalworkshopseries dedicatedtothepracticeandtheoryinpublickeycryptography. Theprogramcommitteeoftheconferencereceived61submissionsfrom12co- triesandregions(Australia,Canada,Finland,France,Japan,SaudiArabia,S- gapore,Spain,Taiwan,UK,USA,andYugoslavia),ofwhich25wereselectedfor presentation. Allsubmissionswerereviewedbyexpertsintherelevantareas. TheprogramcommitteeconsistedofChin-ChenChangoftheNationalChung ChengUniversity,Taiwan,YvoDesmedtoftheUniversityofWisconsin-Milwaukee, USA,HidekiImai(Co-Chair)oftheUniversityofTokyo,Japan,MarkusJak- sson of Bell Labs, USA, Kwangjo Kim of Information and Communications University, Korea, Arjen Lenstra of Citibank, USA, Tsutomu Matsumoto of YokohamaNationalUniversity,Japan,EijiOkamotoofJAIST,Japan,Tatsuaki OkamotoofNTT,Japan,NigelSmartofHPLabsBristol,UK,andYuliang Zheng(Co-Chair)ofMonashUniversity,Australia. Membersofthecommittee spentnumeroushoursinreviewingthesubmissionsandprovidingadviceand commentsontheselectionofpapers.Wewouldliketotakethisopportunityto thankallthemembersfortheirinvaluablehelpinproducingsuchahighquality technicalprogram. Theprogramcommitteealsoaskedexpertadviceofmanyoftheircolleagues,- cluding:MasayukiAbe,KazumaroAoki,DanielBleichenbacher,AtsushiFujioka, EiichiroFujisaki,ChandanaGamage,BrianKing,KunioKobayashi,Tetsutaro Kobayashi,PhilMacKenzie,HidemiMoribatake,KazuoOhta,AminShokr- lahi,ShigenoriUchiyama,andYonggeWang. Wethankthemallfortheirhelp. Theconferencewouldnothavebeensuccessfulwithouttheskillfulassistance ofthemembersoftheorganizingcommittee. OurspecialthanksgotoTakashi ManoofIPA,Japan,KantaMatsuuraandHidenoriShida,bothofUniversity ofTokyo,Japan. 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 ANewTypeof\MagicInk"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 ectivenessofLatticeAttacksAgainstLow-ExponentRSA ...204 ChristopheCoup e(ENSdeLyon,France) PhongNguyenandJacquesStern(ENSParis,France) ATrapdoorPermutationEquivalenttoFactoring...219 PascalPaillier(GemplusandENST,France) Low-CostDouble-SizeModularExponentiation orHowtoStretchYourCryptoprocessor...223 PascalPaillier(GemplusandENST,France) EvaluatingDi erentialFaultAnalysisofUnknownCryptosystems ...235 PascalPaillier(GemplusandENST,France) RemovingInteroperabilityBarriersBetweentheX. 509and EDIFACTPublicKeyInfrastructures:TheDEDICAProject ...245 MontseRubia,JuanCarlosCruellasand ManelMedina(PolytechUniofCatalonia,Spain) HashFunctionsandtheMACUsingAll-or-NothingProperty...263 SangUkShinandKyungHyuneRhee(PuKyongNatUni,Korea) JaeWooYoon(ETRI,Korea) DecisionOraclesareEquivalenttoMatchingOracles...276 HelenaHandschuh(GemplusandENST,France) YiannisTsiounis(GTELabs,USA) MotiYung(CertCo,USA) SharedGenerationofRandomNumberwithTimestamp: HowtoCopewiththeLeakageoftheCA'sSecret ...290 YujiWatanabeandHidekiImai(UniofTokyo,Japan) Auto-RecoverableCryptosystemswithFasterInitialization andtheEscrowHierarchy ...306 AdamYoung(ColumbiaUni,USA) MotiYung(CertCo,USA) ASecurePay-per-ViewSchemeforWeb-BasedVideoService ...315 JianyingZhou(KentRidgeDigitalLabs,Singapore) Kwok-YanLam(NatUniofSingapore) AuthorIndex ...327 ANewTypeof\MagicInk"Signatures| TowardsTranscript-IrrelevantAnonymity Revocation Feng Bao and Robert H. Deng Information Security Group Kent Ridge Digital Labs Singapore 119613 fbaofeng,dengg@krdl. org.

This book constitutes the refereed proceedings of the 19th International Symposium on Applied Algebra, Algebraic Algorithms and Error-Correcting Codes, AAECC-13, held in Honolulu, Hawaii, USA in November 1999.The 42 revised full papers presented together with six invited survey papers were carefully reviewed and selected from a total of 86 submissions. The papers are organized in sections on codes and iterative decoding, arithmetic, graphs and matrices, block codes, rings and fields, decoding methods, code construction, algebraic curves, cryptography, codes and decoding, convolutional codes, designs, decoding of block codes, modulation and codes, Grobner bases and AG codes, and polynomials.

ThePKC2000conferencewasheldattheMelbourneExhibitionCentre,Victoria, Australia, January 18-20, 2000. It was the third conference in the international workshop series dedicated to practice and theory in public key cryptography. The program committee of the conference received 70 full submissions from around the world, of which 31 were selected for presentation. All submissions were reviewed by experts in the relevant areas.The program committee consisted of 19 experts in cryptography and data se- rity drawn from the international research community, these being Chin-Chen Chang (National Chung Cheng University, Taiwan), Claude Cr' epeau (McGill University, Canada), Ed Dawson (Queensland University of Technology, A- tralia), Yvo Desmedt (Florida State University, USA), Hideki Imai (Co-chair, UniversityofTokyo,Japan),MarkusJakobsson(BellLabs,USA),KwangjoKim (Information and Communications University, Korea), Arjen Lenstra (Citibank, USA),TsutomuMatsumoto(YokohamaNationalUniversity,Japan),DavidN- cache (Gemplus, France), Eiji Okamoto (University of Wisconsin-Milwaukee, USA),TatsuakiOkamoto(NTTLabs,Japan),JosefPieprzyk(UniversityofW- longong, Australia), Jean-Jacques Quisquater (Universit' e Catholique de L- vain, Belgium), Nigel Smart (HP Labs Bristol, UK), Vijay Varadharajan (U- versity of Western Sydney, Australia), Serge Vaudenay (Ecole Polytechnique F' ed' erale de Lausanne, Switzerland), Moti Yung (CertCo, USA), and Yuliang Zheng (Co-chair, Monash University, Australia).Members of the committee spent numerous hours in reviewing the submissions and providing advice and comments on the selection of papers.