Public Key Cryptography - PKC 2004: 7th International Workshop on Theory and Practice in Public Key Cryptography, Singapore, March 1-4, 2004

PKC2004wasthe7thInternationalWorkshoponPracticeandTheoryinPublic Key Cryptography and was sponsored by IACR the International Association for Cryptologic Research www iacr org This year the workshop was organized 2 in cooperation with the Institute for Infocomm Research I R Singapore There were 106 paper submissions from 19 countries to PKC 2004 That is the highest submission number in PKC history Due to the large number of submissionsandthehighqualityofthe submittedpapers notallthepapersthat contained new ideas were accepted Of the 106 submissions 32 were selected for the proceedings Each paper was sent to at least 3 members of the Program Committee for comments The revised versions of the accepted papers were not checked for correctness of their scienti c aspects and the authors bear the full responsibility for the contents of their papers Some authors will write nal versions of their papers for publication in refereed journals I am very grateful to the members of the Program Committee for their hard work in the di cult task of selecting fewer than 1 in 3 of the submitted papers as well as the following external referees who helped the Program Committee Nuttapong Attrapadung RobertoMariaAvanzi GildasAvoine JoonsangBaek Qingjun Cai Jae Choon Cha Chien Ning Chen Liqun Chen Xiaofeng Chen Koji Chida Nicolas T Courtois Yang Cui Jean Franco is Dhem Louis Goubin Louis Granboulan Rob Granger Jens Groth Yumiko Hanaoka Darrel Hank son Chao ChihHsu TetsutaroKobayashi YuichiKomano HidenoriKuwakado TanjaLange PeterLeadbitter ByoungcheonLee Chun KoLee HenryC J Lee JohnMaloneLee YongLi Beno tLibert Hsi ChungLin YiLu JeanMonnerat Anderson C A Nas This book constitutes the refereed proceedings of the 7th International Workshop on Theory and Practice in Public Key Cryptography PKC 2004 held in Singapore in March 2004 The 32 revised full papers presented were carefully reviewed and selected from 106 submissions All