S-Box is the only non-linear component in Advanced Encryption Standard(AES) which determine its strength. The Look-Up Table based S-Box of conventional AES occupies large storage space, reduced throughput and consumes more power. This article presents the design of an S-Box based on Reversible Cellular Automata function that reduces the implementation cost. Further, Cellular Automata functions ...

Insulin therapy has been the best choice for the clinical management of diabetes mellitus. The current insulin therapy is via subcutaneous injection, which often fails to mimic the glucose homeostasis that occurs in normal individuals. Oral delivery is the most convenient administration route. However, insulin cannot be well absorbed orally because of its rapid enzymatic degradation in the gast...

This paper presents the design of a lightweight, yet software friendly, block cipher. Most of the lightweight block ciphers are nibbleoriented as the implementation of a 4-bit S-box is much more compact than an 8-bit S-box. This paper uses a novel implementation of multiplicative inverse for 8-bit S-boxes using LFSR requiring only 138 gateequivalent. With this powerful scheme, we design a light...