The information are need to modulate using irreproducible and unpredictable digital bit stream to get a secure digital communication systems. Hence, True random number generator (TRNG) is a significant aspirant in digital circuit to yield unpredictable digital bit stream. In this assignment self starved feedback SRAM based TRNG is proposed in quantum cellular automata (QCA) technology. Moreover, QCA technology is adopted to design TRNG components due to its features like ultra low power dissipation, low area and ultra high operating frequency. The proposed TRNG is comprised of self starved feedback circuit and floating clock generator. Again, the basis of self starved feedback circuit is a single bit QCA SRAM cell, which extracts the random digital bit. Furthermore, to enhance the randomness, floating clock generator is implemented across self starved feedback circuits input. The functionality of proposed TRNG is accomplished through QCA Designer tool and its architecture is also passed NIST statistical test of randomness. Hence proposed 8 bit TRNG can be interpreted as a novel contender for security applications due to its 14.82 GHz operating frequency, 0.36 μm² area, latency of 1 QCA clock cycle, 28.53 meV average power dissipation and high tail probability of NIST test battery report in QCA technology.

需要使用不可复制和不可预测的数字比特流来调制信息，以获取安全的数字通信系统。因此，真随机数发生器（TRNG）是数字电路中的重要代表，可产生不可预测的数字位流。在此任务中，在量子细胞自动机（QCA）技术中提出了基于自饥饿反馈SRAM的TRNG。此外，由于QCA技术具有超低功耗，小面积和超高工作频率等特性，因此被采用来设计TRNG组件。提出的TRNG由自饥饿反馈电路和浮动时钟发生器组成。同样，自饥饿反馈电路的基础是一位QCA SRAM单元，它提取了随机数字位。此外，为了增强随机性，浮动时钟发生器通过自反馈电路的输入实现。拟议的TRNG的功能是通过QCA Designer工具完成的，其体系结构还通过了NIST随机性统计测试。因此，建议的8位TRNG由于其14.82 GHz工作频率为0.36μm，因此可以解释为安全应用的新型竞争者。QCA技术报告²面积，1个QCA时钟周期的延迟，28.53 meV的平均功耗以及NIST测试电池报告的高尾部概率。