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1、2023Global Quantum Communication&SecurityIndustry Development ProspectFebruary 2023Quantum Annual Series ReportQuantum Annual Series ReportQuantum Annual Series ReportQuantum Annual Series ReportForewordICV Frontier Technology Consulting Director,Senior Vice PresidentJude GreenAs the new generation

2、of information technology develops,the amount of data grows rapidly.However,at the same time,the risk of data being stolen or altered by attackers through the internet increases.The occurrence of digital information leaks has also resulted in an increasing demand for information security from countr

3、ies,organizations,and individuals.On the other hand,the continuous development of quantum computing technology poses unprecedented challenges to public-key cryptography systems based on large number factorization and discrete logarithms.Cryptography is the cornerstone of network security technology.

4、Quantum information security uses both quantum physics-based cryptography techniques(such as QKD,QT,and QSDC)and mathematics-based cryptography techniques(PQC).These new generation encryption technologies can be nested at different stages of the entire network,providing an additional layer of securi

5、ty to take on the heavy responsibility of information security in the quantum era.The physics-based QKD cryptography technique has some applications currently,but is still in the development stage.The mathematics-based modern cryptography system is well established and widely used,but cryptography c

6、racking techniques are constantly challenging and stimulating the evolution of new generation cryptography techniques.Although it may take ten years or even longer for the first quantum computer capable of breaking the current public-key cryptography to appear,there is a considerable amount of time