Nghiên cứu, thiết kế và kiểm tra thuật toán mã hóa GIFT-128-bit

The rapid proliferation of Internet of Things (IoT) and Artificial Intelligence (AI) technologies has led to an exponential increase in data exchange across diverse systems. This necessitates robust and efficient data security solutions, especially for resource-constrained IoT devices with limited computational capabilities and deployment costs. Authenticated encryption algorithms are crucial in this context. This study presents the theoretical foundation, design, and testing of the GIFT-COFB 128-bit encryption algorithm, specifically adapted for lightweight block cipher-based authenticated encryption. It addresses the critical need for simultaneous confidentiality and authenticity in data transmission, aiming to provide a secure and efficient encryption algorithm for modern IoT applications.

Researchers and engineers in cybersecurity, embedded systems, IoT security, hardware design (FPGA/ASIC), and cryptography.

This research thoroughly investigates the GIFT-COFB 128-bit encryption algorithm, a lightweight block cipher-based authenticated encryption mode designed to ensure both confidentiality and authenticity in data transmission. It is particularly well-suited for compact IoT application systems and devices characterized by limited computational capabilities and resources. The paper details the construction and testing process, including the implementation of the encryption algorithm on hardware description language (Verilog HDL) and FPGA platforms. The system's design is grounded in the lightweight block cipher structure of GIFT-COFB, incorporating robust security parameters such as a 128-bit substitution-permutation network, a 128-bit key length, and the COFB authenticated encryption mechanism. Key processes like SubCells, PermBits, and AddRoundKey within the GIFT-128 block cipher are explained, alongside the COFB mode's padding and feedback functions that enhance security and optimize hardware resource usage. Preliminary evaluation results demonstrate the reliability and effectiveness of this design in practical data transmission scenarios, highlighting its potential for widespread application in various economic, social, and defense sectors that demand high security and fast processing.