Title :
Remark on Yu et al.´s Online/Offline Signature Scheme in CT-RSA 2008
Author :
Xiao-Long Ma ; Zhi-wei Wang ; Li-Ze Gu ; Yi-Xian Yang
Author_Institution :
State Key Lab. of Networking & Switching Technol., Beijing Univ. of Posts & Telecommun., Beijing, China
Abstract :
In CT-RSA 2008, Yu et al. proposed a family of three efficient Online/Offline signature schemes, which are especially suitable for the devices with limited computing capabilities. In this paper, we propose a new security model of Online/Offline signature. We find that Yu et al.´ basic scheme is insecure under our model. We repair Yu et al.´s loophole by proposing a modified scheme.
Keywords :
digital signatures; online/offline signature; security model; Computational efficiency; Information security; Laboratories; Polynomials; Public key; Telecommunication computing; Telecommunication switching; Devices with limited computing capabilities; Online/offline signature; Security mode;
Conference_Titel :
Information Assurance and Security, 2009. IAS '09. Fifth International Conference on
Conference_Location :
Xi´an
Print_ISBN :
978-0-7695-3744-3
DOI :
10.1109/IAS.2009.318
