The quantum information science is the science of quantum information processing technology. The quantum information processing technology includes quantum computing technology, quantum cryptography and quantum communication technologies,its impact on information security is great. The quantum computers and quantum algorithms made many difficult math problems solved easily, that is a direct threat to many of the traditional cryptography, and the anti-quantum attacks cryptographic algorithms became the focus of the theoretical research. Quantum cryptography and quantum teleportation can effectively improve the security of quantum communication networks and quantum signature technology. People encountered many challenges in the process of studying quantum information science, also made gratifying progress. People should adequately predict the impact of quantum informatics science on commercial, military, network, banking areas at the information age.%量子信息学是研究量子信息处理技术的科学.量子信息处理技术包括量子计算技术、量子密码和量子通信技术等,对信息安全的影响巨大.量子计算机和量子算法令许多曾经的数学难题被轻松破解,这威胁到众多传统密码体系的安全性,也使得防量子算法攻击的密码体系成为理论研究热点.量子密码和量子隐形传态可有效提高量子通信网络和量子签名技术的安全性.人们在研究量子信息学的过程中遇到了诸多挑战,亦取得的可喜进展.应当充分预估量子信息学对信息时代的商业、军事、网络、银行等领域的影响.
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