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Wuhan University Journal of Natural Sciences

Efficient certificateless authenticated key agreement protocol from pairings

Wang Shengbao, Cao Zhenfu, Wang Licheng

Published Sep 1, 2006• 37 citations
Publisher

Abstract

In the area of secure Web information system, mutual authentication and key agreement are essential between Web clients and servers. An efficient certificateless authenticated key agreement protocol for Web client/server setting is proposed, which uses pairings on certain elliptic curves. We show that the newly proposed key agreement protocol is practical and of great efficiency, meanwhile, it satisfies every desired security requirements for key agreement protocols.

DOI
10.1007/bf02829251

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In the area of secure Web information system, mutual authentication and key agreement are essential between Web clients and servers. An efficient certificateless authenticated key agreement protocol for Web client/server setting is proposed, which uses pairings on certain elliptic curves. We show that the newly proposed key agreement protocol is practical and of great efficiency, meanwhile, it satisfies every desired security requirements for key agreement protocols.
In the area of network information security,key agreement is essential between servers and clients.To overcome the key escrow property of identity-based cryptography,proposed certificateless public key cryptography,it combined the advantages of the traditional PKI and the identity-based cryptography.This paper proposed a new certificateless two-party key agreement protocol using pairing operation in elliptic curves,it only required each party to compute one pairing.Proved its security in ECK(extended Canetti-Krawczyk) model.Compared with existing certificateless protocols,the newly proposed key agreement protocol has better security and efficiency.
E-learning communication security should be considered to ensure sensitive message transmission. Authenticated key agreement protocol in the client- server setting is the fundamental building block for ensuring client-server entity authentication, data confidentiality and integrity. So far, great deals of two- party authenticated key agreement protocols were proposed based on traditional public key cryptography and identity-based cryptography, but the certificateless-based authenticated key agreement protocol is seldom discussed. In this paper, we propose such a secure protocol from a certificateless public key encryption scheme due to Park et al. Compared to other comparable protocols, it achieves more security attributes, such as no-key escrow, perfect forward secrecy, known session-specific temporary information security and no-key control etc. Meanwhile, it keeps nice efficiency.
Recent study on certificateless authenticated key agreement focuses on bilinear pairing-free certificateless authenticated key agreement protocol. Yet it has got limitations in the aspect of computational amount. So it is important to reduce the number of the scalar multiplication over elliptic curve group in bilinear pairing-free protocols. This paper proposed a new bilinear pairing-free certificateless two-party authenticated key agreement protocol, providing more efficiency among related work and proof under the random oracle model.
Recent study on certificateless authenticated key agreement focuses on bilinear pairing-free certificateless authenticated key agreement protocol. Yet it has got limitations in the aspect of computational amount. So it is important to reduce the number of the scalar multiplication over elliptic curve group in bilinear pairing-free protocols. This paper proposed a new bilinear pairing-free certificateless two-party authenticated key agreement protocol, providing more efficiency among related work and proof under the random oracle model.
Authenticated key agreement protocol is one of the important cryptographic primitives to ensure secure communication in an open network. Certificateless public key cryptography (CL-PKC) represents an interesting and potentially useful balance between public key cryptography based on certificates and identity-based cryptography. The topic of CL-PKC has undergone quite rapid development with schemes being proposed for encryption and signatures, while certificateless authenticated key agreement protocols are seldom discussed. In this paper, we present a secure two-party authenticated key agreement protocol based on an efficient certificateless public key encryption with pairing. Such a scheme achieves almost all of the security attributes, including known-key secrecy, perfect forward secrecy, PKG forward secrecy, key-compromise impersonation resilience, unknown key-share resilience, known session-specific temporary information security, message independence and no key control. Meanwhile, it is also practical with nice efficiency.
The certificateless -based authenticated key agreement protocols have the advantages of simplicity of managing identities compared to the PKI-based schemes,as well as avoiding the key escrow issues inherited in the identity-based schemes. This paper proposes a two-party certificateless-based authenticated key agreement scheme based on a provably secure certificateless-based public key encryption scheme.The comparisons with other comparable schemes in security and efficiency show that,the new scheme achieves more of the desired security attributes,such as perfect forward secrecy,PKG forward secrecy,known session-specific temporary information secrecy and key escrowless.Meanwhile it keeps the nice computational efficiency.