Engineering Research Publication
Now-a-days, security is a major problem in around the world. Particularly in communication area, data is transmitting over public networks; these networks have lack security and are vulnerable. Cryptography is important technologies that are used to preserve data security and integrity. Encrypt and decrypt is important security technologies in data transmission through the public networks. These technologies used to preserve data security and privacy then reduce information theft in the public networks. The existing routing protocol is incapable of providing secure data transmission over public networks.