Title :
An enhanced ID-Based anonymous proxy signature scheme on pairings
Author :
Hu, Chengyu ; Liu, Pengtao
Author_Institution :
Sch. of Comput. Sci. & Technol., Shandong Univ., Jinan, China
Abstract :
An anonymous proxy signature is applied in the situation of a proxy signature that the proxy singer hopes to keep secret of his identity and when disputation is appearing, the verifier can reveal the real identity of the proxy signer with the help of the original signer. In this paper, we analyze Zhao et al.´s id-based anonymous proxy signature. We show that their scheme is not truly ¿ID-Based¿ and it is vulnerable to an attack similar to ¿Key Replacement Attack¿ in the certificateless signature. At last, we propose an enhanced ID-Based anonymous proxy signature scheme and analyze its security.
Keywords :
digital signatures; ID-based anonymous proxy signature; certificateless signature; identity; key replacement attack; original signer; pairings scheme; proxy singer; Additives; Computer science; Equations; Identity-based encryption; Information science; Information security; Privacy; Protection; Public key; Public key cryptography; Anonymous Proxy Signature; ID-Based; Key Replacement Attack;
Conference_Titel :
Computer and Automation Engineering (ICCAE), 2010 The 2nd International Conference on
Conference_Location :
Singapore
Print_ISBN :
978-1-4244-5585-0
Electronic_ISBN :
978-1-4244-5586-7
DOI :
10.1109/ICCAE.2010.5451676