Customized RSA Public Key Cryptosystem Using Digital Signature of Secure Data Transfer Natural Number Algorithm

The cryptography network security means to protect data transmission during their interconnected networks in
all over the world. Cryptography network security is the important way of hiding/keeping information during
transmission over a network. There are different kinds of cryptographic algorithms available to protect our data
from intruders. The challenging of resource sharing on data communication in a network is its network security.
The important issues of data security become critical. In this paper, we mainly focus on data encryption and
decryption in a network environment using RSA algorithm. RSA is an efficient algorithm in cryptography network
security. In this paper, we solvethe most security problem for data transmission in a network environment. So in
this paper, a secure data transfer natural number algorithm is like to RSA algorithm with a few modifications. In
this modifications much more increase the security of the cryptosystem. In this STNN algorithm, we have
particularly used four prime factors (similar to RSA). In addition of this, we have used four prime factor is
calculate two natural numbers in a pair of public key and private key. The two natural numbers much more
increase the security of the cryptosystem.