Abstrait

A Cost Effective Multicast Key Management Scheme for Secure Group Communication

R Keerthana, Dr.N.M Saravana Kumar

Problem statement: Key management is the management of cryptographic keys in a cryptosystem. This includes dealing with the key generation, exchange, storage, use, and replacement of keys. Several schemes have been proposed to make key management efficient and usable. This paper proposes a cost effective key management scheme in multicast network for achieving a secure communication between the group members. This scheme gives better results with respect to the key management for multiple members. A secure key management scheme using RSA-CRT coding and Euclidean algorithm for efficient key distribution in multicast network. The keys generated in the network are securely exchanged with the help of RSA-CRT. This paper solves the most security problem by user registration and verification phases in the multicast network. The primary advantages are its large compression rate on the size of the shares and its strong protection of the secrets which avoids many attacks. For a ubiquitous system to be capable of sharing multiple secrets, the scheme can be potentially used for its efficiency, security and reliability. RSA-CRT algorithm is a method to periodically renew n secret shares without modifying the group key values whenever the member leaving in the star topology. The future work towards minimizing the communication cost in various tasks.