Public key cryptography

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 tec