An Identity-Based Proxy Signature from Bilinear Pairings

Author

Ji, Huifang ; Wang, Yongjuan ; Han, Wenbao ; Zhao, Long

Author_Institution

Inf. Res. Dept., ZhengZhou Inf. Sci. & Technol. Inst., Zhengzhou, China

Volume

2

fYear

2009

fDate

10-11 July 2009

Firstpage

14

Lastpage

17

Abstract

Currently, ID-based PKC has attracted much attention and got many achievements. Proxy signature allows an original signer to delegate his private key to a proxy signer to sign some message on behalf of the original signer. We present a ID-based proxy signature in this paper. The scheme is relatively efficient as there is no pairing computation during the Delegation and PSign phases. It is secure against existential forgery under adaptive chosen message and identity attack under the random oracle model. Its security can be reduced to the hardness of CDHP.

Keywords

digital signatures; public key cryptography; bilinear pairing; computational Diffie-Hellman problem; identity-based proxy signature; private key; public key cryptosystem; random oracle model; Additives; Forgery; Identity management systems; Identity-based encryption; Information science; Polynomials; Protection; Public key; Public key cryptography; Security; CDHP; ID-based PKC; proxy signature; random oracle model;

fLanguage

English

Publisher

ieee

Conference_Titel

Information Engineering, 2009. ICIE '09. WASE International Conference on

Conference_Location

Taiyuan, Shanxi

Print_ISBN

978-0-7695-3679-8

Type

conf

DOI

10.1109/ICIE.2009.125

Filename

5211485