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Lecture notes in networks and systems

A Novel Post-quantum Piekert’s Reconciliation-Based Forward Secure Authentication Key Agreement for Mobile Devices

Dharminder Chaudhary, S. S. Anushaa, S. Naundhini, M. S. P. Durgarao

Published Jan 1, 2023• 2 citations
Publisher
DOI
10.1007/978-981-99-2100-3_9

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Once the shared secret key is established, three parties can use it for secure communication using symmetric-key encryption AES (128, 192, 256) algorithms or other cryptographic primitives. Although there are few third-party post-quantum authentication and key agreement protocols exist, but the recent studies in this article show that they are not anonymous or cannot provide forward secrecy. Most of the existing protocols enable adversaries to trace the source of messages. Many of third-party AKA schemes based on conventional public-key cryptosystems are vulnerable to quantum computers. Therefore, this paper contains a forward secure three-party post-quantum authenticated key establishment protocol for mobile devices. The proposed three-party key exchange protocol establishes an authenticated shared key that can be periodically refreshed to maintain forward secrecy. This protocol enables two parties to establish a shared session key even in the presence of quantum adversaries and enables them to communicate confidentially and securely over insecure networks. The protocol is anonymous as both the parties communicate using masked dynamic identities. A contrast study consisting of performance and security assessment is presented, which illustrates the suggested design is more applicable.
ABSTRACT A three‐party post‐quantum key agreement protocol involves server with two communicating parties securely agreeing on a shared secret key in a way that is resistant to quantum attacks. Once the shared secret key is shared using authenticated key agreement protocol, then user (A), and user (B) can use it for securing communication channel using symmetric‐key encryption AES‐256 algorithm. Although there are few third‐party post‐quantum authenticated and key agreement schemes exist, but the recent studies in this paper illustrates that they are not satisfying properties like unlinkability, anonymity, perfect forward secrecy, and signal leakage attacks. Therefore, the proposed protocol ensures anonymity, unlinkablity, perfect forward secrecy, and resistant against signal leakage attacks. The proposed protocol uses different random numbers for each of sessions and ensures freshness of the session key to maintain forward secrecy. In this protocol, the user (A) only communicates with server, and establish an authenticated session key with user (B) which avoids server overheads. The use of ring learning with errors (RLWE) instead of the simpler learning with errors (LWE) is primarily motivated by the need for efficiency, compactness, and scalability in cryptographic applications. A comparative study, including both performance and security assessments, demonstrates that the proposed design is more secure and efficient.
ABSTRACT In this paper, we introduce a lattice‐based authenticated three‐party key agreement scheme for mobile devices with the aim of achieving both post‐quantum security and efficiency. Our scheme is inspired by the authenticated key exchange protocol developed. We revisit the recently suggested system, which is a communication‐efficient three‐party password‐authenticated key exchange, in which we found that the scheme is not fully correct and also demonstrate that the scheme is not safe from user's anonymity and impersonation assaults. We provide an enhanced scheme that is both effective and resistant to the mentioned assault. We also demonstrate its security in a ROM (Random Oracle Model). A comparison analysis that includes performance, security evaluations, energy consumption, and packet loss rate is also provided, proving the suitability of the suggested design.