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KSII Transactions on Internet and Information Systems

Identity-based Authenticated Multiple Key Agreement Protocol with PKG Forward Security

Zuowen Tan

Published Jan 1, 2012• 5 citations
Publisher

Abstract

Authenticated multiple key agreement protocols not only allow participants to agree the multiple session keys within one run of the protocol but also ensure the authenticity of the other party.In 2011, Dehkordi et al. proposed an identity-based authenticated multiple key agreement protocol.In this paper, we demonstrate that Dehkordi et al.'s protocol is vulnerable to impersonation attacks.Furthermore, we have found that their protocol cannot provide perfect forward security or mutual security.Then we propose an identity-based authenticated multiple key agreement protocol which removes the weaknesses of the Dehkordi et al.'s protocol.Compared with the multiple key agreement protocols in the literature, the proposed protocol is more efficient and holds stronger security.

DOI
10.3837/tiis.2012.08.006

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Authenticated multiple key agreement protocols not only allow participants to agree the multiple session keys within one run of the protocol but also ensure the authenticity of the other party.In 2011, Dehkordi et al. proposed an identity-based authenticated multiple key agreement protocol.In this paper, we demonstrate that Dehkordi et al.'s protocol is vulnerable to impersonation attacks.Furthermore, we have found that their protocol cannot provide perfect forward security or mutual security.Then we propose an identity-based authenticated multiple key agreement protocol which removes the weaknesses of the Dehkordi et al.'s protocol.Compared with the multiple key agreement protocols in the literature, the proposed protocol is more efficient and holds stronger security.
Authenticated multiple key agreement protocols not only allow participants to agree the multiple session keys within one run of the protocol but also ensure the authenticity of the other party. In 2011, Dehkordi et al. proposed an identity-based authenticated multiple key agreement protocol. In this paper, we demonstrate that Dehkordi et al.’s protocol is vulnerable to impersonation attack. Furthermore, we have found that their protocol cannot provide perfect forward security or mutual security. Then we propose an identity-based multiple key agreement protocol which removes the weaknesses of the Dehkordi et al.’s protocol. Compared with the multiple key agreement protocols in the literature, the proposed protocol is more efficient and holds stronger security. DOI: http://dx.doi.org/10.5755/j01.itc.42.1.1381
Authenticated key agreement protocol is used to set up the session key and establish secure channel for network communication in the open environment. So far, great deals of identity-based protocols have been proposed to provide robust mutual authentication and key establishment in the two-party setting. Majority of the existing identity-based key agreement protocols require expensive bilinear pairing operation and only provide limited security attributes. Therefore, such protocols are unsuitable for real-world applications that require stronger sense of secrecy. In this paper, we first analysis some of the schemes proposed recently, and then present a one-round ID-based authenticated key agreement protocol with enhanced security attributes, which doesn't need pairing operation and achieves most of the required security attributes, such as known-key secrecy, perfect forward secrecy, PKG Forward Secrecy, key-compromise impersonation resilience, unknown key-share resilience and no key control. In addition, it captures the enhanced security attributes-Known session-specific temporary key information secrecy.
Multiple key agreement (MKA) protocols allow two parties to generate two or more session keys in one session, which will be used for future secure communications in public network. In recent years, many MKA protocols have been proposed. However, most of them do not consider ephemeral key compromise resilience, and some of them still exists security flaws. In this paper, we analyze the scheme proposed by Dehkordi and Alimoradi in 2011, which is announced with stronger security. We will present ephemeral key compromise attack and impersonation attack against Dehkordi and Alimoradi’s protocol. For overcoming these security flaws, we also propose an improvement of Dehkordi and Alimoradi’s protocol.
Multiple key agreement (MKA) protocols allow two parties to generate two or more session keys in a run, which will be used for future secure communications in public network. In recent years, many MKA protocols have been proposed. However, most of them do not consider ephemeral key compromise resilience and also suffer from other security flaws. In this paper, we analyze Dehkordi and Alimoradi's MKA protocol and Tan's MKA protocol. We will present ephemeral key compromise attack against Dehkordi and Alimoradi's MKA protocol, and prove that Tan's MKA protocol cannot provide mutual security.
Abstract:Current identity-based authenticated key agreement schemes still have restriction on PKG system parameters.The assumption limits the application in real network environment.In order to solve these problems,an identity-based cross-domain authenticated key agreement protocol was proposed.There is no restriction on PKG system parameters so that public system parameters,system master keys and system public keys can be totally different.The security of this scheme was analyzed under the eCK model,and the result showed that this protocol satisfies the basic security requirements,perfect forward secrecy and PKG forward secrecy.Moreover,this protocol is robust to the existing attacks such as key compromise impersonation attack and ephemeral key compromise impersonation attack. Comparison with some typical identity-based multi-domain authenticated key agreement protocols showed that this scheme is more secure and efficient.
For an identity-based authenticated key agreement (IDAK) protocol, PKG forward secrecy is the strongest notion of forward secrecy, which is about the security of previously established session keys after the master secret key of the Private Key Generatior (PKG) is compromised. In this paper, we put forward a new identity-based authenticated key agreement protocol which achieves PKG for-ward secrecy. On its performance, we show that it is more computational efficient than a previously proposed protocol of Chen and Kudla (called Protocol 2'). Furthermore, we examine other security attributes that our new protocol possesses one bye one.