Author(s)

C. Bennila Thangammal¹, D. Praveena², P. Rangarajan³

¹Department of Electronics & Communication Engineering, R.M.D Engineering College, Chennai, India.
²Department of Information Technology, R.M.D Engineering College, Chennai, India.
³Department of Computer Science and Engineering, R.M.D Engineering College, Chennai, India.

In the ancient block Hill cipher, the cipher text is obtained by multiplying the blocks of the plain text with the key matrix. To strengthen the keymatrix, a double guard Hill cipher was proposed with two key matrices, a private key matrix and its modified key matrix along with permutation. In the ancient block Hill cipher, the cipher text is obtained by multiplying the blocks of the plain text with the key matrix. To strengthen the key matrix, a double guard Hill cipher was proposed with two key matrices, a private key matrix and its modified key matrix along with permutation. In this paper a novel modification is performed to the double guard Hill cipher in order to reduce the number of calculation to obtain the cipher text by using non-square matrices. This modified double guard Hill cipher uses a non-square matrix of order (p × q) as its private keymatrix.

Encryption, Decryption, Non-Square Matrices, Low Energy High Secured Data Transmission

Thangammal, C. , Praveena, D. and Rangarajan, P. (2016) Secured Data Transmission Using Modified LEHS Algorithm in Wireless Sensor Network. Circuits and Systems, 7, 1190-1198. doi: 10.4236/cs.2016.78102.