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International Conference on Advanced Communication Technology

An enhanced certificateless authenticated key agreement protocol

Razieh Mokhtarnameh, Sin-Ban Ho, Nithiapidary Muthuvelu

Published Apr 7, 2011• 12 citations
OpenAlex

Abstract

Authenticated key agreement protocol is used to share a secret key for encrypting data being transferred between two or more parties over a public network. An implementation of this protocol is the certificateless key agreement which utilizes the features of the identity-based public key cryptography and the traditional public key infrastructure. This implementation can produce multiple public keys for a corresponding private key. In this paper, an alternative key generation technique is proposed for certificateless public key cryptography in order to have one public key for one private key. This will improve the security features of the relevant key generation. Furthermore, the efficiency of the proposed protocol is presented in terms of computational operation. The comparison analysis shows that the proposed protocol conveys better efficiency with all the known security attributes compared to the existing protocols.

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Authenticated key agreement protocol is used to share a secret key for encrypting data being transferred between two or more parties over a public network. An implementation of this protocol is the certificateless key agreement which utilizes the features of the identity-based public key cryptography and the traditional public key infrastructure. This implementation can produce multiple public keys for a corresponding private key. In this paper, an alternative key generation technique is proposed for certificateless public key cryptography in order to have one public key for one private key. This will improve the security features of the relevant key generation. Furthermore, the efficiency of the proposed protocol is presented in terms of computational operation. The comparison analysis shows that the proposed protocol conveys better efficiency with all the known security attributes compared to the existing protocols.
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.
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.
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 used to provide data confidentiality and integrity to subsequent communications among two or more parties over a public network. Certificateless public key cryptography (CL-PKC) 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 certificateless encryption scheme due to Libert and Quisquater. Security analysis shows that it achieves perfect forward secrecy, PKG forward secrecy and almost all the other known security attributes, 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 efficient.
Key agreement protocols are multi-party protocols in which entities exchange public information allowing them to create a common secret key that is known only to those entities and which cannot be predetermined by any party. Recently, the notion of certificateless public key cryptography was introduced to mitigate the heavy certificate management burden in traditional public key infrastructure and key escrow problem in ID-based cryptosystem. In this paper, we present an efficient certificateless three-party authenticated key agreement protocol based on certificateless signature scheme. We show that the proposed protocol is secure (i.e. conforms to defined security attributes) while being efficient.