 Nonlinear-feedback shift register

A Nonlinear Feedback Shift Register (NFSR) is a type of shift register that incorporates nonlinear feedback mechanisms. Shift registers are sequential digital circuits that store and manipulate binary data in registers through shifting operations, often used for applications in digital communication and cryptography. ### Key Characteristics of NFSR: 1. **Nonlinear Feedback**: Unlike Linear Feedback Shift Registers (LFSRs), which use linear functions (typically XOR operations) to generate feedback, NFSRs utilize nonlinear functions.