In this paper, a new true random number generator (TRNG) based on a new variable differential ring oscillator has been presented. In this structure, the ring oscillator’s jitter is considered a random phenomenon. The jitter of the proposed ring oscillator is driven by thermal noise and flicker noise so that the generated jitter is random. In this paper, a new variable differential ring oscillator has been designed. The stage of this ring oscillator is changed randomly in order to create random jitter. A new differential delay cell has been proposed to boost the speed of TRNG and random jitter. The proposed random number generator (RNG) is robust against temperature variations of −40–120∘C and voltage variations from 0.8 to 1.8V. The proposed system’s bitrate is 50MB/s and its efficiency is 30.03Mb/mJ. This process has been implemented in the 0.18um CMOS process. Simulation results have been presented in Hspice software and cadence. The output bit images have been displayed by Matlab software.

中文翻译：

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一种基于微分可变环形振荡器抗PVT变化的新型真随机数发生器

本文提出了一种基于新型可变差分环形振荡器的真随机数发生器（TRNG）。在这种结构中，环形振荡器的抖动被认为是一种随机现象。所提出的环形振荡器的抖动由热噪声和闪烁噪声驱动，因此产生的抖动是随机的。本文设计了一种新型可变差分环形振荡器。这个环形振荡器的阶段是随机改变的，以产生随机抖动。已经提出了一种新的差分延迟单元来提高 TRNG 的速度和随机抖动。所提出的随机数发生器（RNG）对温度变化具有鲁棒性-40–120∘C和从 0.8 到 1.8 的电压变化五、建议系统的比特率为50MB/s，效率为30.03兆字节/兆焦耳。这个过程已经在 0.18嗯CMOS工艺。仿真结果已在 Hspice 软件和 cadence 中呈现。输出的位图已由 Matlab 软件显示。