MTCX: Ultra-high Throughput TRNG Based on Mesh topology of Coupled-XOR

The true random number generator (TRNG) is capable of generating completely random and unpredictable sequences. TRNG is an important hardware security primitive, it plays a critical role in identity verification, prevention of replay attacks and key exchange. To meet the demand for high-throughput true random number generators in modern high-speed systems, a lightweight design is proposed. It utilizes a mesh topological 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 SP800-22 and AIS-31 tests. It achieved ultra-high throughput of 2.1Gbps and 2.4Gbps on the Xilinx Artix-7 FPGA and Kintex-7 FPGA, respectively, achieving efficient utilization of hardware resources. Compared with other architectures, this design has significant advantages in terms of throughput and resource utilization.