Quantum key charging method of communication terminal

Abstract

The invention relates to communication encryption, in particular to a quantum key charging method of a communication terminal. The method comprises the steps that connection relationships among a charging terminal, a quantum random number generator, an exchange cipher machine and a cipher service platform are established; the cipher service platform initializes a security medium in a communication terminal through the exchange cipher machine and the charging terminal; the quantum random number generator generates a charging key, and the exchange cipher machine generates an encryption key to encrypt the charging key; the charging terminal obtains the charging key based on a key obtaining token, and the exchange cipher machine encrypts the encryption key through a card public key and returns a charging key ciphertext and an encryption key ciphertext to the charging terminal; and the charging terminal imports the charging key ciphertext and the encryption key ciphertext into the security medium, the security medium returns a charging result to the charging terminal, and the charging terminal finishes key charging of the security medium. According to the technical scheme provided by the invention, the defects that an application range is limited and a quantum key is likely to be stolen in a quantum key charging process can be effectively overcome.

Description

technical field [0001] The invention relates to communication encryption, in particular to a quantum key charging method for a communication terminal. Background technique [0002] At present, the encryption measures for communication between mobile terminals mainly adopt the encryption system based on the combination of public-private key and symmetric key for communication encryption. The working key is distributed on the public network through the public-private key system. Each share a pair of public and private keys, the central site generates a working key, encrypts the working key with the public key, and sends it to the mobile terminal, and the mobile terminal decrypts it with the paired private key to obtain the working key. The link between the mobile terminal and the central site can use this working key as the key of the symmetric encryption algorithm for encryption and decryption. [0003] However, with the rapid development of quantum computer technology, espe...

AI Technical Summary

Problems solved by technology

[0006] However, the existing quantum key filling process can only be applied to the area where the quantum private network is laid because the quantum key distribution equipment must rely on the private quantum network, and the scope of use is limited, and in the process of quantum key filling , prone to theft of quantum keys

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