Anonymous Quantum Safe Construction of Three Party Authentication and Key Agreement Protocol for Mobile Devices

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.