分野別セミナー

Motivated for digital signatures of better offline storage, ease deployment in concurrent interactive settings and for power limited devices like RFID tags, wireless sensors and smart cards, a　new paradigm for digital signatures, referred to as Gamma-transformation, is introduced and formalized in this work. Following this new paradigm, some new signature schemes (referred to as Gamma-signatures) are presented and discussed. In particular, it is 　shown that the Gamma-signatures for DLP developed in this work combine, in essence, the advantages of both Schnorr’s signature and the Digital Signature Standard (DSS), while saving from the disadvantages of both them.