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Identity-basedAuthenticatedKeyAgreementProtocolCrossAutonomousDomains

Xue Zhang, Guangsong Li, 韩文报, 冀会芳, 胡洪宇

Published Jan 1, 2015• 0 citations
OpenAlex

Abstract

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.

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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.
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.
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.
As the fundamental building block for secure communication in the open network, authenticated key agreement protocols are usually constructed in the public key setting. Certificateless public key cryptography combines the advantage of the identity-based public key cryptography (ID-PKC) and the traditional PKI. In this paper, we present a secure and efficient two-party authenticated key agreement protocol based on the efficient certificateless public key encryption scheme due to Cheng and Comley. Security analysis shows that it achieves perfect forward secrecy, PKG forward secrecy and almost all the other known security attributes for authenticated key agreement protocol, such as known-key secrecy, key-compromise impersonation resilience, unknown key-share resilience, known session-specific temporary information security, message independence and no key control. Compared to other comparable schemes, it is more secure and has nice efficiency.
Authenticated key agreement protocol is the fundamental building block for secure communication in the open network to ensure authentication and confidentiality of e-commerce and e-government applications. Certificateless public key cryptography combines the advantage of the identity-based public key cryptography (ID-PKC) and the traditional PKI. In this paper, we present a secure and efficient two-party authenticated key agreement protocol based on an efficient and secure certificateless public key encryption scheme. It achieves almost all the known security attributes for authenticated key agreement protocol, such as perfect forward secrecy, PKG forward secrecy, key-compromise impersonation resilience, unknown key-share resilience, message independence and no key control. Compared to other comparable schemes, it is more secure and has 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.