White box key processing method based on quantum key distribution and terminal

Abstract

The invention relates to the field of communication security, and discloses a white-box key processing method based on quantum key distribution and a terminal, a quantum key distribution network converts a distributed quantum key into a white-box key and a white-box encryption and decryption algorithm to replace the quantum key directly distributed and used, and after the white-box key and the white-box encryption and decryption algorithm are injected into the terminal, the white-box key and the white-box encryption and decryption algorithm are sent to the terminal. The encryption terminal encrypts the plaintext communication data by using the first white-box key and the white-box encryption algorithm of the home terminal, generates ciphertext communication data and transmits the ciphertext communication data to the decryption terminal, and the decryption terminal decrypts the ciphertext communication data by using the second white-box key and the white-box decryption algorithm of the home terminal, restores the plaintext communication data, and transmits the plaintext communication data to the decryption terminal. The white-box key is an irreversible sequence of the quantum key, even if the white-box key is leaked, the quantum key cannot be derived, and plaintext communication data corresponding to the ciphertext communication data cannot be obtained, so that the method not only improves the security of the quantum key, but also improves the security of the communication data, and provides safer guarantee for data communication.

Images