This paper proposes a nonlinear coupled two-dimensional generalized Feigenbaum chaotic mappingby using bifurcation graphics, we studied the complex nonlinear dynamic activities of two-dimensional formula. By using the coupled two-dimensional generalized Feigenbaum chaotic mapping a chaotic sequence is generated, then the chaotic sequence is optimized into secret key stream, and scrambling method is introduced in this encryption algorithm, this changes values of pixels. The results of experiment simulation show that the extremely sensitive to the key, the choice of chaotic sequence depends on t...
