Pseudo-random generator using PUF circuits and Salsa stream cipher

Abstract

The paper presents the concept and the implementation of a hardware pseudorandom generator based on Salsa stream cipher and a unique identifier composed of PUF circuits. The pseudorandom generator is implemented on a hardware reconfigurable FPGA platform and it is designed to be used in FPGA security applications. Many of the real time complex applications designed on FPGA platforms need speed computations of data and in the same time security protection of sensitive or private information. Combining the Salsa stream cipher with a device unique identifier we create a fast method for data encryption/decryption on FPGA applications like Systems on Chip.