ASSOUJAA ISMAIL1 , EZZOUAK SIHAM2

Cryptography plays a pivotal role in ensuring secure communication between two parties, typically represented by Alice and Bob, in the presence of adversaries like Eve. However, modern communication often involves multiple users beyond the traditional pair. This work extends the DiffieHellman key exchange protocol to accommodate multiple users, addressing the need for secure communication in diverse group settings. Additionally, we propose methods for communicating the input points utilized in the pairing application with the DiffieHellman key exchange protocol, enhancing the security and resilience of the exchanged keys. Through these advancements, we aim to fortify cryptographic protocols for robust multi-user scenarios, safeguarding sensitive information in an ever-evolving digital landscape.

https://doi.org/10.58357/jedcs.2024.v3.i2.4