In this paper, the authors present a new approach towards cryptography. There are many methods for acquiring security and many applications, ranging from secure commerce and payments to private communications and protecting passwords. One essential and important aspect for secure conversion of the information is cryptography. But it is important to note that cryptography is necessary for secure conversion of information, it is not fulfill required security. In this paper, they are showing a new encryption key model as well as encryption algorithm model which will improving avalanche effect as compare various encryption algorithm.