Image Encryption Method Using Differential Expansion Technique, AES and RSA Algorithm

In recent era, providing security is more difficult using traditional encryption techniques. To avoid this vulnerability, it is advisable to combine two traditional encryption algorithms. Next, use a Differential Expansion technique to instill an enciphered confidential key into the concealed image. One possible case can be the malicious person is ignorant about the cipher text and the enciphered key. The probability of attack is negligible. On the other hand, if the hacker knows the cipher key then with the help of private key he can get the plaintext image. The proposed algorithm is robust and provides a better security when compared with other existing algorithms. It will be implemented in MATLAB.