A Scheme of IBE Key Issuing Protocol Based on Identity-password Pair

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Weimin Shi 1,*

1. College of Computer Science and Technology Beijing University of Technology Beijing, China

* Corresponding author.

DOI: https://doi.org/10.5815/ijem.2012.04.04

Received: 10 May 2012 / Revised: 13 Jun. 2012 / Accepted: 19 Jul. 2012 / Published: 29 Aug. 2012

Index Terms

Identity-based cryptograph, key issuing protocol, key-escrow problem


To avoid the impersonation attack, an efficient and secure key issuing protocol based on identity-password pair is proposed, in which an additional identity-password pair issued by KGC and KPAs is used to authenticate a user’s identity. In this protocol we use a simple blinding technique to eliminate the of secure channel and multiple authorities approach to avoid the key escrow problem. Our protocol solves the key-escrow problem successfully and saves at least 4n pairing and 2n Hash operations in comparison to Lee B et al’s protocol.

Cite This Paper

Weimin Shi,"A Scheme of IBE Key Issuing Protocol Based on Identity-password Pair", IJEM, vol.2, no.4, pp.29-34, 2012. DOI: 10.5815/ijem.2012.04.04


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