量子区块链:融合量子信息技术的区块链能否抵御量子霸权?

Quantum blockchain: can blockchain integrated with quantum information technology resist quantum supremacy?

区块链的广泛应用使越来越多的学者聚焦到安全加密这一重大问题上。然而,随着电子计算机技术的飞速发展,远超传统计算速度和数据处理容量的量子计算机已经逐步从理论走向实践,它的极大算力将给区块链的链内安全带来巨大和根本性的挑战。介绍了量子信息的两大核心应用,分析了量子霸权对区块链现行的共识方式和加密算法的破解方式。同时,针对目前区块链的漏洞,提出量子区块链以防止量子计算带来的攻击威胁,并阐述了量子通信技术的原理与应用方法,举例说明了量子区块链的安全性与可行性。最后,对目前量子计算存在的几大技术挑战进行了分析。

Quantum computers,which substantially exceed traditional computing speed and data processing capacity,are gradually moving from theory toward practice.The tremendous computing power of quantum computers will bring fundamental challenges to current information encryption mechanism.Two key applications of quantum information technology were introduced,followed by comments on how quantum supremacy threatens the current blockchain consensus and encryption mechanisms.Meanwhile,considering loopholes existing in the current blockchain technology,a blockchain system integrating quantum technology was discussed aiming to prevent the threat of quantum supremacy.