Fermat Number Transform diffusion´s analysis

The Fermat Number Transform (FNT) has distinctive features, making it attractive for use in the design of secure cryptosystems. Advantages of FNT include parameterization; by achieving variable block size and key size, sensitivity; element values change for any changes to the input, output or key elements. Additionally, it is suitable for real time implementations as a fast algorithm could be adapted to it to speed up processing. The work presented here is an analysis of the transform´s avalanche and diffusion power to evaluate its effectiveness for security applications.