Wuhan University Journal of Natural Sciences

, Volume 19, Issue 5, pp 455–460 | Cite as

An efficient identity-based key agreement protocol in a multiple PKG environment

Cryptology
First Online:
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Abstract

Identity-based key agreement protocol affords a natural way to combine the participant’s identity with its public key. However, most of them just consider the key agreement in a single private key generator (PKG) environment. In addition, the existing key agreement protocols have a great computing overhead for mobile computing which is more and more popular today. This paper proposes a new identity based key agreement protocol. With the help of mathematical tools, we make our protocol applied in multiple PKG environment. It also satisfies all the security properties which is set for key agreement protocol. Moreover, some of its time-consuming operations can be delivered to untrusted public computation resources, so its computing complexity can be greatly reduced.

Key words

key agreement identity based public computation multiple PKG environment 

CLC number

TP 309 
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Copyright information

© Wuhan University and Springer-Verlag Berlin Heidelberg 2014

Authors and Affiliations

  1. 1.School of ComputerNational University of Defense TechnologyChangshaHunan, China
  2. 2.National Laboratory for Parallel and Distributed ProcessingNational University of Defense TechnologyChangshaHunan, China

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