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Journal of Chengdu University of Information Technology

A New Method based on Certificateless Authenticated Group Key Agreement Protocols

Ma Ju

Published Jan 1, 2013• 0 citations
OpenAlex

Abstract

A new method based on certificateless authenticated key agreement protocols is proposed.A generalization of multi-party in Nalla agreement and tripartite key agreement,which can strongly overcome the key escrow is made.This new method shows that there is a short signature,which can increase theefficiency ofauthentication process.And it has used the key seed and password evolution scheme,which improved the security of the protocol.The new agreement satisfies much secure prosperity,for instance,forward security,against manin-the-middle resistance,impersonation attack resistance,and so on.

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A new method based on certificateless authenticated key agreement protocols is proposed.A generalization of multi-party in Nalla agreement and tripartite key agreement,which can strongly overcome the key escrow is made.This new method shows that there is a short signature,which can increase theefficiency ofauthentication process.And it has used the key seed and password evolution scheme,which improved the security of the protocol.The new agreement satisfies much secure prosperity,for instance,forward security,against manin-the-middle resistance,impersonation attack resistance,and so on.
The tripartite key agreement protocol that Joux has proposed is more efficient and simple,but it is vulnerable to man-in-the-middle attack.A new method based on certificateless authenticated key agreement protocols is proposed,which extends tripartite key agreement to multi-party accompanied by its authentication function.It has a lot of advantages,such as a short signature,high calculation efficiency,simple management about certificate and escrow-free anonymous key.The new method enjoys much secure prosperity,for instance,which has a non-key control and forward security,resists man-in-themiddle and leaked disguise attack,and so on.
In order to make key agreement protocol to resist against the active attacks, proposed a certificateless authenticated tripartite key agreement protocol. First, analysed the existing key agreement protocol. Then designed a security tripartite key agreement scheme based on the theory of certificateless cryptography. This protocol builds a security tripartite session key only need one round message exchange, which can strongly overcome the key escrow and offer perfect forward secrecy. The analysis of security and complexity shows that this protocol is secure and effective.
In order to resist against the active attacks,Chen Jia-qi proposed an authenticated tripartite key agreement protocol based on certificateless cryptography in 2010. However,the protocol couldn't resist the passive opponent's attack,and it also couldn't meet some security attributes stated by Chen Jia-qi. In order to solve the above problems,based on an efficient certificateless two-party authenticated key agreement protocol given by He De-biao,this paper proposed a new certificateless authenticated tripartite key agreement protocol. The security and efficiency of the new protocol were analyzed. The result shows that the new protocol satisfies the security properties of the certificateless authenticated tripartite key agreement protocol. Compared with the protocol proposed by Chen Jia-qi,the efficiency of the new protocol is higher,which attributes to the reduced number of pairings in the new protocol.
Authenticated key agreement protocol allows a group of users in an open network environment to identify each other and share a security session key.This article proposed a new scheme of ID-based authenticated multi-party key agreement based on McCullagh-Barreto scheme.Key seed was introduced to update temporary public/private key pairs.The new scheme is able to realize the authentication,improve the security,resist Reveal query attack and the key compromise impersonation attack successfully,and it has many properties such as non-key control and equal contribution.
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.
Certificateless public key cryptography was introduced to overcome the key escrow limitation of the identity-based cryptography. It combines the advantages of the identity-based cryptography and the traditional PKI. Many certificateless public key encryption and signature schemes have been proposed. However, the key agreement in CL-PKE is seldom discussed. In this paper, we present a new certificateless two party authentication key agreement protocol and prove its security attributes. Compared with the existing protocol, our protocol is more efficient.