RSA Based Threshold Cryptography for Secure Routing and Key Exchange in Group Communication

Purpose of this paper is to provide reliable data transmission in group communication. We here combine RSA and Threshold Cryptosystem to securely deliver messages in group. As long as the all receivers receive secure data, it can recover the original message. We worked on RSA for secure data forwarding; we consider both splitting plaintext before encryption, and splitting ciphertext after encryption. Also we suggest exchanging keys between a Diffie-Hellman by which group communication is more secure.