Secure multicast transmission

The group communication has been implemented by Multicast Authentication Batch Signature (MABS). This eliminates the network overheads such as packet loss, latency computation and communication overhead. The Batch signature is the effective cryptographic primitive which authenticates any number of packets simultaneously. This paper gives the solution by introducing Enhanced Multicast Authentication Batch Signature (MABS-E) by eliminating DOS impact. The sender side file content is displayed in both sender and receiver. The receiver can send the request to the sender by sending the file name. The authentication is verified by the sender by use of batch verify(). Then sender splits the file content into packets and signs each packet by generating the key then encrypts the packets and sends to the receiver. The receiver verifies the packets and then decrypts the message using sender's public key.