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arXiv:2004.10010 · Communications in computer and information science

Secure and Energy-Efficient Key-Agreement Protocol for Multi-server Architecture

Trupil Limbasiya, Sanjay K. Sahay

Published Jan 1, 2020• 2 citations
arXivHTMLPDF
DOI
10.1007/978-981-15-3817-9_6

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Three-factor mutually authenticated key agreement protocols for multi-server environments have gained momentum in recent times due to advancements in wireless technologies and associated constraints. Several authors have put forward various authentication protocols for multi-server environment during the past decade. Wang et al. recently proposed a biometric-based authentication with key agreement protocol for multi-server environment and claimed that their protocol is efficient and resistant to prominent security attacks. The careful investigation of this paper shows that Wang et al. protocol's users are sharing personal identifiable information with the application servers during the registration and authentication process. This nature of disclosing credentials leads to severe threats particularly insider attacks, user impersonation attacks, and server impersonation attacks. As a remedy of the aforementioned problems, this paper proposes a novel biometric-based mutually authenticated key agreement protocols for multi-server architecture based on elliptic curve cryptography. We prove that the proposed protocol achieves secure mutual authentication property using the broadly used Burrows-Abadi-Needham logic. The formal security of the proposed protocol is verified using the widely accepted automated validation of Internet security protocols and applications tool to show that our protocol can withstand active and passive attacks including the replay and man-in-the-middle attacks. The proposed protocol is robust and efficient compared with the existing related protocols.
To meet the requirement of doctors’ comprehensive diagnosis and treatment across multiple servers in smart healthcare, and to address the lack of efficient switching mechanisms in existing post-quantum authentication schemes, a post-quantum password authentication and fast-switching key agreement protocol for multi-server smart healthcare environments was proposed. With ML-KEM as the core cryptographic primitive, a mechanism combining initial authentication and fast switching authentication was designed. In the initial authentication phase, full authentication was performed, and a master session key and a service session key were established. During multi-server access, fast switching authentication was performed, and a new service session key was independently negotiated with the target server. In terms of security, the session key semantic security of the proposed protocol was proved under the ROR model, and resistance to common attacks was analyzed. In terms of performance, when a user continuously accessed five servers, compared with the repeated full-authentication approach in Wen’s and Chen’s post-quantum schemes, the proposed protocol reduced the cumulative computational overhead by more than 70.34% and the cumulative communication overhead by more than 27.53%. The performance gap increases as the number of servers grows, which shows that the proposed protocol has significant efficiency advantages and good scalability in large-scale deployment scenarios.