Secret sharing scheme for group authentication — A review

User authentication is the most important security services for communication purpose. Group Authentication authenticates all users belonging to the same group is proposed in this paper. The (n, n) Group Authentication Scheme is very efficient since it is sufficient to authenticate all users at once if all users are group members; however, if there are nonmembers, it can be used as a preprocess before applying conventional user authentication to identify non-members. Also, if any of the user present in group authentication is absent then the group is not authenticated at all, as each share is distributed to each user. It results in best authenticated system as the hacker cannot hack each share in a secret. Also, Group Authentication is implemented with Neural Network so it becomes complicated for hackers to hack each neuron in a neural network. The Neural Network based group authentication is specially designed for group-oriented applications using Shamir Secret Sharing Scheme. It is a many-to-many type of authentication.