Quantum encryption authentication fusion method, device and system

The invention discloses a quantum encryption authentication fusion method, device and system, and solves the problem of insufficient security of a negotiation key and an initialization vector. Information encryption or message authentication service can be provided according to user network requirements, negotiation key fusion enhancement in information encryption or message authentication is realized based on quantum key distribution, and initialization vector fusion enhancement in information encryption or message authentication is realized based on quantum random number generation. And thus, quantum encryption information transmission or quantum encryption message authentication of the user network service in the public network is realized. According to the method, the flexibility of information encryption or message authentication is realized as required, and the security of information encryption and message authentication is improved based on the fusion of the quantum key and the negotiation key and the