Ultra-High Efficiency TRNG IP Based on Mesh Topology of Coupled-XOR

The true random number generator is capable of generating completely random and unpredictable sequences, and plays a crucial role in various fields such as cryptography, encryption communication, and random algorithms. To meet the demand for high-throughput true random number generators in modern high-speed systems, a lightweight TRNG design is proposed. It utilizes a mesh topology of coupled-XOR as entropy source and generates a highly compact and high throughput true random number generator by coupling oscillators in the network. The generated random sequences have successfully passed the NIST SP 800-22, TESTU01, NIST SP 800-90B, and AIS-31 tests. It achieved ultra-high throughput of 2.1Gbps and 2.4Gbps on the Xilinx Artix-7 and Kintex-7 series development boards, respectively, achieving efficient utilization of hardware resources. Compared with other works, this design has significant advantages in terms of resource utilization and throughput.