Quantum secrete telephone

Abstract

The invention relates to a quantum secrete telephone, which combines the quantum secrete communication with the current telephone communication and realizes secure telephone communication by encrypting / decrypting voice by use of an absolutely secure quantum codebook; the best advantage of the system is: by using FPGA as the control core, as the FPGA does not open the interface of the storage chip of the codebook, any behavior trying to attack a terminal so as to steal the codebook remotely is invalid. Compared with a common computer which has various bugs, the quantum secrete telephone is absolutely powerful guarantee for security. Moreover, along with development of FPGA technology, the current processing speed already reaches GHz level, thus a qualitative leap is made in both the processing speed for key selection and the precision and sensitivity for polarization feedback control; and besides, FPGA is further compatible with other coding schemes such as phase coding and entanglement coding and can work in a quantum key distribution system with higher working frequency with good adaptability.

Description

technical field [0001] The invention relates to quantum secure communication, specifically, a codebook is generated through high-speed quantum secure communication, and then the codebook is used to encrypt and decrypt the compressed voice signal, finally realizing long-distance quantum secure telephone. Background technique [0002] The communication parties of quantum secure communication use single photons to load and transmit information. Since single photons cannot be divided, it is impossible for eavesdroppers to separate and monitor single photons. Therefore, the generated codebook is absolutely safe. [0003] Since quantum secure communication can provide an absolutely secure communication channel, it is of great significance to various fields such as national defense, politics, and finance. Developed countries such as Europe, the United States and Japan are constantly exploring the practical application of quantum secure communication. Switzerland even Using quantum ...

AI Technical Summary

Problems solved by technology

Using FPGA as the control core of the quantum security telephone system solves the problem that the polarization mode dispersion of the polarization encoding method in the prior art will cause the polarization state to jitter immediately, and the security performance of using a computer for control and information storage and it is difficult to achieve high-speed data. transmission problem

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