Security mediated certificateless signatures


Yap, Nvun-She and Chow, Sherman S. M. and Heng, Swee-Huay and Goi, Bok-Min (2007) Security mediated certificateless signatures. In: Applied Cryptography and Network Security. Lecture Notes in Computer Science (4521). Springer Berlin Heidelberg, pp. 459-477. ISBN 978-3-540-72737-8

[img] Text
Security Mediated Certificateless Signatures.pdf
Restricted to Repository staff only

Download (601kB)


In PKC 2006, Chow, Boyd and Gonzalez Neito introduced the notion of security mediated certificateless (SMC) cryptography. SMC cryptography equips certificateless cryptography with instantaneous revocation. They presented a formal security model with two constructions for SMC encryption. This paper studies SMC signatures. We first present :3, security analysis of a previous attempt by Ju et al. in constructing a SMC signature scheme. We then formalize the notion of SMC signatures and propose the first concrete provable scheme without bilinear pairing. Our scheme is existential unforgeable in the random oracle model based on the intractability of the discrete logarithm problem, has a short public key size, and achieves a trust level which is the same as that of a traditional public key signature.

Item Type: Book Section
Subjects: T Technology > T Technology (General)
Q Science > QA Mathematics > QA71-90 Instruments and machines > QA75.5-76.95 Electronic computers. Computer science
Divisions: Faculty of Engineering and Technology (FET)
Depositing User: Ms Suzilawati Abu Samah
Date Deposited: 04 Oct 2011 01:01
Last Modified: 15 Nov 2013 04:43


Downloads per month over past year

View ItemEdit (login required)