A hybrid technique of cryptography and watermarking for data encryption and decryption
Amandeep Kaur, Satveer Singh · 2016
In computer networks, digital information such as text, audio and video have been broadly exchanging over the communication system. The security of the communication system in the present day imperative conception because the information ingredient of the human life. This paper presents a new hybrid scheme for secure text message transmission. The hybrid scheme is based on Fibonacci series, XOR cipher, PN sequence, RSA, Hill cipher, one bit LSB, two bit LSB and three bit LSB. In stage I, the input text message is divided the five different segments and five different cryptography techniques are applied to these segments. In stage II, the encrypted text message has been generated to five different cryptography techniques. The encrypted text message is hiding by one bit LSB, two bit LSB and three bit LSB. In the receiver side decrypt the information using same methodology that can be adapted in the transmitter side. The application of these five different technique to different segments of the same message along with the symmetric key and asymmetric key and three type of LSB to provide confidentiality and authentication.