A Simple Approach for VLSI Improvement of OHRNS for Use RSA Cryptography

A method for speed increasing in arithmetic circuits such as addition, subtraction and multiplication, is the Residue Number System (RNS). The absence of carry, realization of high-speed and low-power arithmetic and more security are some advantages of RNS. One-Hot is a way for RNS performance. In One-Hot Residue Number System (OHRNS), We define M module by M-bits. The big number of pass transistors that used for implementing One-Hot system is a disadvantage of this system. This paper gives an interesting simple Approach for reducing the number of OHRNS pass transistors. In fact we perform just the same function with smaller hardware.