Abstract: The method comprises: a user terminal initiating an authentication request to a target server and providing device information of the user terminal, and the target server receiving the authentication request and generating a temporary session, and sending a temporary session ID and the device information to a quantum key allocation network; the quantum key allocation network searching for a wearable device bound to the user terminal, and sending the temporary session ID to the wearable device; the wearable device collecting biological recognition information of a user, and sending the biological recognition information to the quantum key allocation network; and the quantum key allocation network matching the biological recognition information with pre-stored biological recognition information, wherein if matching is successful, an authentication result is sent to the target server, and then the target server sends the authentication result to the user terminal.

Abstract: A wearable device-based identity authentication method and system, comprising: a user terminal initiates an authentication request to a target server and provides device information of the user terminal, the target server generates a temporary session, and sends a temporary session ID and the device information to a quantum key distribution network; the quantum key distribution network generates identification information, searches a wearable device bound to the user terminal, and sends the identification information to the wearable device; the wearable device receives and provides the identification information to the user terminal, the user terminal acquires the identification information, and sends verification information to the wearable device and then to the quantum key distribution network; the quantum key distribution network generates an authentication result and sends to the target server; and the target server generates an identification authentication result and sends to the user terminal.

Abstract: Provided are a light source for use in the field of quantum communication, and an encoding device using the light source. When the light source is applied to Z basis encoding, a high and stable extinction ratio can be provided, and two consecutive optical pulses having a stable phase relation can be provided for encoding under an X basis.

Abstract: A cloud storage method and a cloud storage system are provided. The method includes: generating, by a QKD system on a terminal side and a QKD system on at least one cloud server side, at least one quantum key over a quantum network; sending, by the QKD system, the at least one quantum key to the key management terminal for storage; and obtaining, by a cloud storage client, the at least one quantum key from the key management terminal, and processing the at least one quantum key to generate a combined key by a predetermined encryption algorithm.

Abstract: A mobile secret communications method based on a quantum key distribution network, comprises the following steps: a mobile terminal registering to access the network and establishing a binding relationship with a certain centralized control station in the quantum key distribution network; after a communication service is initiated, the mobile terminals participating in the current communication applying for service keys from the quantum key distribution network; the quantum key distribution network obtaining addresses of the centralized control stations participating in service key distribution during the current communication, designating a service key generation centralized control station according to a current state indicator of each centralized control station; the service key generation centralized control station generating service keys required in the current communication and distributing the keys to the mobile terminals participating in the current communication.

Abstract: Disclosed is a method for allocating a communication key based on an Android intelligent mobile terminal. By establishing a universal secret communication platform on the bottom layer of an Android operating system, an intelligent mobile terminal is equipped with the functions of being able to interact with a secret communication support network, receiving a two-level key and using a received service key after decrypting same, thereby being able to provide universal bottom-layer support for a VoIP secret call, a secret short message, a secret video call, file encryption transmission, secure mobile payment and other communication services which require secrecy support. The secret communication support network provides the service keys required for various communication services for a reformed intelligent mobile terminal, and after obtaining the service keys, the intelligent mobile terminal uses same to conduct the secret communication.

Abstract: A mobile secret communications method based on a quantum key distribution network, comprises the following steps: a mobile terminal registering to access the network and establishing a binding relationship with a certain centralized control station in the quantum key distribution network; after a communication service is initiated, the mobile terminals participating in the current communication applying for service keys from the quantum key distribution network; the quantum key distribution network obtaining addresses of the centralized control stations participating in service key distribution during the current communication, designating a service key generation centralized control station according to a current state indicator of each centralized control station; the service key generation centralized control station generating service keys required in the current communication and distributing the keys to the mobile terminals participating in the current communication.

Abstract: Disclosed are a quantum key distribution terminal and system. An optical transceiving device and an electronics media board in a quantum key distribution system are organically integrated into a whole through an electronics back panel. A quantum key distribution terminal with a compact structure and a high integration level is provided, so that uniform testing, maintenance and management for various components in the quantum key distribution system can be realized, thereby realizing the integration and terminalization of the key distribution system. The same quantum key distribution terminal can also be used to conduct flexible networking, thereby setting up a quantum key distribution system on a point to point, local area network or metropolitan area network scale.