Journal of Theoretical and Applied Information Technology
In this paper, a novel image encryption scheme using stream cipher algorithm based on non-linear filter generator is considered. In this paper, a novel image encryption scheme is proposed based on stream cipher algorithm using pseudorandom generator with filtering function. This algorithm makes it possible to cipher and decipher images by guaranteeing a maximum security. The proposed cryptosystem is based on the use the Linear Feedback Shift Register (LFSR) with large secret key filtered by resilient function whose resiliency order, algebraic degree and nonlinearity attain the researchers bound.