Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Log inSign up
Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Blog
Job Board
Q3AS

© 2026 Aqora Quantum S.A.S.

TermsPrivacyLegal Notice

Information Technology And Control

A Strongly Secure Pairing-free Certificateless Authenticated Key Agreement Protocol for Low-Power Devices

Haiyan Sun, Wen Qiao-yan, Zhang Hua, Jin Zhengping

Published Jun 11, 2013• 20 citations
Publisher

Abstract

Certificateless authenticated key agreement (CL-AKA) protocols neither suffer from a heavy certificate managementburden nor have the key escrow problem. Recently, many CL-AKA protocols have been proposed. However, manyof them need expensive bilinear pairings, which cannot be suitable for low-power devices such as sensors or mobile devices.To be implemented in practice, some pairing-free CL-AKA protocols have been built, however, very few of these pairing-freeCL-AKA protocols can be secure in the eCK model. In this paper, we present a pairing-free CL-AKA protocol and providea full proof of its security in the eCK model. Compared with the existing CL-AKA protocols, our protocol is more secure,practical and suitable for low-power devices.DOI: http://dx.doi.org/10.5755/j01.itc.42.2.1689

DOI
10.5755/j01.itc.42.2.1689

Related papers

An Efficient Certificate-Based Authenticated Key Agreement Protocol without Bilinear Pairing

Yang Lu, Quanling Zhang, Jiguo Li +1 more

An authenticated key agreement (AKA) protocol is extremely essential to secure communications over insecure public networks. It enables the communication parties to securely set up a shared session key in present of the malicious attackers. Certificate-based cryptography (CBC) is a novel public-key cryptographic primitive that has many attractive merits. It solves the certificate revocation problem in conventional public-key cryptography and the key-escrow problem in identity-based cryptography. Till now, four AKA protocols have been proposed in the setting of CBC. However, all of them adopt the costly bilinear pairings and are not suitable for the devices which have limited computing resources and battery power. So, it is interesting and worthwhile to design a certificate-based AKA protocol without using the bilinear pairings. In this paper, we develop a pairing-free certificate-based AKA protocol. The proposed protocol is proven secure under the classic computational Diffie-Hellman assumption in the random oracle model. Compared with the previous pairing-based certificate-based AKA protocols, the proposed protocol enjoys obvious advantage in the computation efficiency.DOI: http://dx.doi.org/10.5755/j01.itc.46.3.14968

Information Technology And Control•Sep 7, 2017•2 citations

Provably Secure Certificateless Two-Party Authenticated Key Agreement Protocol without Pairing

Manman Geng, Futai Zhang

Key agreement is one of the fundamental cryptographic primitives in public key cryptography. So far several certificateless two-party authenticated key agreement (CL-T-AKA) protocols have been proposed. However, all these protocols are based on bilinear map and most of them are without formal security proof. In this paper, we present a new formal security model of CL-T-AKA protocols and bring forward the first two-party key agreement protocol without the computation of expensive bilinear map. Our protocol is secure under the security model assuming the Gap-DH problem is intractable. With respect to efficiency, our protocol requires a single round of communication in which each party sends only one group element, and needs only five modular exponentiation computations. In addition, we point out that an existing certificateless two-party key agreement protocol cannot resist man-in-the-middle attack.

International Conference on Computational Intelligence and Security (CIS)•Jan 1, 2009•45 citations

Cryptanalysis and Improvement of Several Identity-Based Authenticated and Pairing-Free Key Agreement Protocols for IoT Applications

Haiyan Sun, Chaoyang Li, Jianwei Zhang +2 more

Internet of Things (IoT) applications have been increasingly developed. Authenticated key agreement (AKA) plays an essential role in secure communication in IoT applications. Without the PKI certificate and high time-complexity bilinear pairing operations, identity-based AKA (ID-AKA) protocols without pairings are more suitable for protecting the keys in IoT applications. In recent years, many pairing-free ID-AKA protocols have been proposed. Moreover, these protocols have some security flaws or relatively extensive computation and communication efficiency. Focusing on these problems, the security analyses of some recently proposed protocols have been provided first. We then proposed a family of eCK secure ID-AKA protocols without pairings to solve these security problems, which can be applied in IoT applications to guarantee communication security. Meanwhile, the security proofs of these proposed ID-AKA protocols are provided, which show they can hold provable eCK security. Some more efficient instantiations have been provided, which show the efficient performance of these proposed ID-AKA protocols. Moreover, comparisons with similar schemes have shown that these protocols have the least computation and communication efficiency at the same time.

Sensors•Dec 22, 2023•1 citation

Secure Certificateless Two-Party Key Agreement with Short Message

Han-Yu Lin

Two-party key agreement protocol allows two communication parties to share a common key for secure communication. Constructed from the certificateless public key cryptography (CL-PKC), a certificateless key agreement (CL-KA) protocol can not only solve the key escrow problem inherited from identity-based systems, but also avoid the troublesome issue of certificate management. Although the topic of two-party CL-KA has been extensively studied during past few years, it is unknown whether such a protocol can be achieved with only one exchanged message. In this paper, we put this idea into practice and propose a new one-round CL-KA for two-party. Specifically, each party of the proposed protocol only has to transmit one group element for sharing a session key and still maintains low computational costs. Moreover, we analyze the security of our scheme in the extended Canetti-Krawzcyk (eCK) security model.DOI: http://dx.doi.org/10.5755/j01.itc.45.1.12595

Information Technology And Control•Mar 21, 2016•6 citations

Strongly Secure Certificateless Authenticated Key Agreement Protocol in Standard Model

Yanhong Zhang, Ming CHEN

Abstract:Based on Zhang’s security model, an improved pairing-free certificateless key agreement,CL-AKA random oracle model, was proposed. An ephemeral-secret query and three types of fresh oracles were further defined in the improved CL-AKA random oracle model to achieve the simulation of key-compromise impersonation, disclosure of ephemeral secrets and perfect forward secrecy. A CL-AKA protocol with strong security was proposed, costing only 9 scalar multiplications on the elliptic curve. The secure of the new protocol was proved in the improved model. The comparative analysis pointed out that the new protocol with strong security and low computing costs can be used to build secure mobile communication environment.

•Jan 1, 2013•0 citations

Lightweight Certificateless Authenticated Key Agreement Protocol

Gervais Mwitende

Data security and privacy are important to prevent the reveal, modification and unauthorized usage of sensitive information. The introduction of using critical power devices for internet of things (IoTs), e-commerce, e-payment, and wireless sensor networks (WSNs) has brought a new challenge of security due to the low computation capability of sensors. Therefore, the lightweight authenticated key agreement protocols are important to protect their security and privacy. Several researches have been published about authenticated key agreement. However, there is a need of lightweight schemes that can fit with critical capability devices. Addition to that, a malicious key generation center (KGC) can become a threat to watch other users, i.e impersonate user by causing the key escrow problem. Therefore, we propose a lightweight certificateless Authenticated Key Agreement (AKA) based on the computation Diffie-Hellman problem (CDHP). The proposed protocol maintains the characteristics of certificateless public key cryptography. The protocol is split into two combined phases. In the first phase, our protocol establishes a session key between users (sender and receiver). In the second phase, we use a lightweight proxy blind signature based on elliptic curve discrete logarithm problem (ECDLP). The used proxy signature has small computation costs, and can fit for small devices such sensors and protects against un-authentication and un-authorization on decentralized system. Compared to the existing AKA schemes, our scheme has small computation costs. The protocol achieves the well known security features compared to the related protocols.

•Oct 28, 2023•0 citations
Certificateless authenticated key agreement (CL-AKA) protocols neither suffer from a heavy certificate managementburden nor have the key escrow problem. Recently, many CL-AKA protocols have been proposed. However, manyof them need expensive bilinear pairings, which cannot be suitable for low-power devices such as sensors or mobile devices.To be implemented in practice, some pairing-free CL-AKA protocols have been built, however, very few of these pairing-freeCL-AKA protocols can be secure in the eCK model. In this paper, we present a pairing-free CL-AKA protocol and providea full proof of its security in the eCK model. Compared with the existing CL-AKA protocols, our protocol is more secure,practical and suitable for low-power devices.DOI: http://dx.doi.org/10.5755/j01.itc.42.2.1689
An authenticated key agreement (AKA) protocol is extremely essential to secure communications over insecure public networks. It enables the communication parties to securely set up a shared session key in present of the malicious attackers. Certificate-based cryptography (CBC) is a novel public-key cryptographic primitive that has many attractive merits. It solves the certificate revocation problem in conventional public-key cryptography and the key-escrow problem in identity-based cryptography. Till now, four AKA protocols have been proposed in the setting of CBC. However, all of them adopt the costly bilinear pairings and are not suitable for the devices which have limited computing resources and battery power. So, it is interesting and worthwhile to design a certificate-based AKA protocol without using the bilinear pairings. In this paper, we develop a pairing-free certificate-based AKA protocol. The proposed protocol is proven secure under the classic computational Diffie-Hellman assumption in the random oracle model. Compared with the previous pairing-based certificate-based AKA protocols, the proposed protocol enjoys obvious advantage in the computation efficiency.DOI: http://dx.doi.org/10.5755/j01.itc.46.3.14968
Key agreement is one of the fundamental cryptographic primitives in public key cryptography. So far several certificateless two-party authenticated key agreement (CL-T-AKA) protocols have been proposed. However, all these protocols are based on bilinear map and most of them are without formal security proof. In this paper, we present a new formal security model of CL-T-AKA protocols and bring forward the first two-party key agreement protocol without the computation of expensive bilinear map. Our protocol is secure under the security model assuming the Gap-DH problem is intractable. With respect to efficiency, our protocol requires a single round of communication in which each party sends only one group element, and needs only five modular exponentiation computations. In addition, we point out that an existing certificateless two-party key agreement protocol cannot resist man-in-the-middle attack.
Internet of Things (IoT) applications have been increasingly developed. Authenticated key agreement (AKA) plays an essential role in secure communication in IoT applications. Without the PKI certificate and high time-complexity bilinear pairing operations, identity-based AKA (ID-AKA) protocols without pairings are more suitable for protecting the keys in IoT applications. In recent years, many pairing-free ID-AKA protocols have been proposed. Moreover, these protocols have some security flaws or relatively extensive computation and communication efficiency. Focusing on these problems, the security analyses of some recently proposed protocols have been provided first. We then proposed a family of eCK secure ID-AKA protocols without pairings to solve these security problems, which can be applied in IoT applications to guarantee communication security. Meanwhile, the security proofs of these proposed ID-AKA protocols are provided, which show they can hold provable eCK security. Some more efficient instantiations have been provided, which show the efficient performance of these proposed ID-AKA protocols. Moreover, comparisons with similar schemes have shown that these protocols have the least computation and communication efficiency at the same time.
Two-party key agreement protocol allows two communication parties to share a common key for secure communication. Constructed from the certificateless public key cryptography (CL-PKC), a certificateless key agreement (CL-KA) protocol can not only solve the key escrow problem inherited from identity-based systems, but also avoid the troublesome issue of certificate management. Although the topic of two-party CL-KA has been extensively studied during past few years, it is unknown whether such a protocol can be achieved with only one exchanged message. In this paper, we put this idea into practice and propose a new one-round CL-KA for two-party. Specifically, each party of the proposed protocol only has to transmit one group element for sharing a session key and still maintains low computational costs. Moreover, we analyze the security of our scheme in the extended Canetti-Krawzcyk (eCK) security model.DOI: http://dx.doi.org/10.5755/j01.itc.45.1.12595
Abstract:Based on Zhang’s security model, an improved pairing-free certificateless key agreement,CL-AKA random oracle model, was proposed. An ephemeral-secret query and three types of fresh oracles were further defined in the improved CL-AKA random oracle model to achieve the simulation of key-compromise impersonation, disclosure of ephemeral secrets and perfect forward secrecy. A CL-AKA protocol with strong security was proposed, costing only 9 scalar multiplications on the elliptic curve. The secure of the new protocol was proved in the improved model. The comparative analysis pointed out that the new protocol with strong security and low computing costs can be used to build secure mobile communication environment.
Data security and privacy are important to prevent the reveal, modification and unauthorized usage of sensitive information. The introduction of using critical power devices for internet of things (IoTs), e-commerce, e-payment, and wireless sensor networks (WSNs) has brought a new challenge of security due to the low computation capability of sensors. Therefore, the lightweight authenticated key agreement protocols are important to protect their security and privacy. Several researches have been published about authenticated key agreement. However, there is a need of lightweight schemes that can fit with critical capability devices. Addition to that, a malicious key generation center (KGC) can become a threat to watch other users, i.e impersonate user by causing the key escrow problem. Therefore, we propose a lightweight certificateless Authenticated Key Agreement (AKA) based on the computation Diffie-Hellman problem (CDHP). The proposed protocol maintains the characteristics of certificateless public key cryptography. The protocol is split into two combined phases. In the first phase, our protocol establishes a session key between users (sender and receiver). In the second phase, we use a lightweight proxy blind signature based on elliptic curve discrete logarithm problem (ECDLP). The used proxy signature has small computation costs, and can fit for small devices such sensors and protects against un-authentication and un-authorization on decentralized system. Compared to the existing AKA schemes, our scheme has small computation costs. The protocol achieves the well known security features compared to the related protocols.