Quantum cryptography network reliable encrypted transmission system and method

Abstract

The invention provides a reliable encrypted transmission system of quantum cryptography network, which includes an encryption processing module composed of an encryption strategy unit, a business data buffering and shunting unit, a classical encryption unit and a quantum encryption unit, and a ciphertext classification unit and a ciphertext data buffer unit. , a decryption processing module composed of a classical decryption unit and a quantum decryption unit. At the same time, the present invention also provides a reliable encryption transmission method for a quantum cryptography network, which adopts a classical encryption method and a quantum one-time pad encryption method for split transmission of business data, which can be changed in time according to the change in the supply and demand relationship of quantum keys. The proportion of business data distribution, on the basis of ensuring security, increases the continuity of encrypted transmission of business data, and improves the reliability of encrypted transmission of business data; at the same time, it reduces the consumption of quantum key data and the quantum cryptography network. The quantum key generation load reduces the cost of encrypted transmission of quantum cryptographic network business data.

Description

technical field [0001] This patent belongs to the field of quantum cryptography communication, and in particular relates to a reliable encrypted transmission system and method for a quantum cryptography network. Background technique [0002] Quantum communication is a new interdisciplinary subject developed in the past two decades, and a new research field combining quantum theory and information theory. Recently, this subject has gradually moved from theory to experiment, and to practical development. Efficient and secure information transmission has attracted increasing attention. [0003] Physically, quantum communication can be understood as high-performance communication realized by using quantum effects under the physical limit. In informatics, we believe that quantum communication is the use of the basic principles of quantum mechanics (such as the principle of non-cloning of quantum states and the measurement collapse properties of quantum states, etc.) or the use ...

AI Technical Summary

Problems solved by technology

But even at this stage, the AES algorithm is not absolutely safe. With the increase of computer computing speed and the research progress of cracking algorithms, the more times the same key is reused, the lower the security of encrypted data will be.

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