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Journal of Computer Applications

New scheme of ID-based authenticated multi-party key agreement

Caifen Wang

Published Jan 1, 2011• 0 citations
OpenAlex

Abstract

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.

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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 security of a recently proposed ID-based authenticated key agreement protocol was analyzed,and an enhanced ID-based authenticated key agreement protocol is presented based on the previous work. a malicious PKG (private key generator) can still obtain all of the agreed session keys, that is, it doesn't provide PKG-forward secrecy in escrowless mode. Aiming at the security flaws of an existing ID-based key agreement Protocol and a key agreement Protocol for multi-trustdomain proposed based on the new variant mode of ID- Base public key infrastrueture(PKI), an improved scheme is proposed. The new scheme can avoid excessive power of KGC to make up the security flaws in the original protocols, which has a higher level of security. The new schemes have many properties such as equal contribution; non-key control; against man-in-middle attack; etc.
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.
Two-Party Authenticated key agreement protocol is essential for setting up the common session key for parties to establish secure channel for network communication in the open environment. Most of proposed schemes require expensive bilinear pairing operation and only provide limited security attributes. So such protocols are unsuitable for real-world applications that require stronger sense of secrecy. In this paper, we first analysis two schemes recently proposed by Cao etc., and then present a one-round ID-based authenticated key agreement protocol with more desired security attributes, which need no pairing operations while still achieve nice computational efficiency. These security attributes include known-key secrecy, perfect forward secrecy, PKG forward secrecy, key-compromise impersonation resilience, unknown key-share resilience and no key control. Moreover, it captures the enhanced security attributes known session-specific temporary key information secrecy, which means that even the ephemeral secret key were compromised, the adversary can hardly acquire the agreed session key.
The security attributes of three provable secure ID-based authenticated key agreement protocols are analyzed,and an enhanced ID-based authenticated key agreement protocol is presented based on the previous work.The new scheme achieves most of the known security attributes,such as known-key secrecy,key-compromise impersonation resilience,unknown key-share resilience,no-key control and message independence,especially the PKG-forward secrecy and known session-specific temporary information secrecy attributes,meanwhile keeping with the nice efficiency.
Key agreement protocols are essential for secure communications in open and distributed environments. Identity-based cryptography has become extremely fashionable in the last few years for its special advantages. In this paper, we point out some flaw in the scheme proposed by Wang et al., then we present a two-party identity-based explicit authenticated key agreement protocol with key confirmation, which was inspired on a new identity-based encryption scheme first proposed by Gentry and can be used properly in the escrowless mode. The scheme captures the attributes of known-key secrecy, key-compromise impersonation resilience, unknown key-share resilience, perfect forward secrecy, and no-key control. Especially, the scheme captures the PKG forward secrecy property. The PKG still could not recover all the userspsila past session keys even he knows the long-term private keys of all users.