3 results about "Group signature" patented technology

The application provides a kind of unmanned plane anonymous authentication and identity remote identification method, unmanned plane and its supervision equipment, the method includes: by unmanned plane service provider in advance selecting system main private key and main public key, define attribute set;And by unmanned plane registration process, generate and issue certificate for the unmanned plane;Unmanned plane running process, generate RID data packet that can be anonymous authentication and meet RID rule;RID data packet includes the following information: unmanned plane position, unmanned plane speed, unmanned plane attribute ciphertext, unmanned plane operator's location ciphertext, encrypted unmanned plane public key information, time stamp, group signature;Timing broadcast RID data packet, so that receiver obtains the position and flight speed of unmanned plane according to the received RID data packet. Utilize the scheme of the application, the effective management and privacy protection of unmanned plane can be realized.

Various methods for authenticating user devices in a group messaging protocol, such as messaging layer security (MLS), are described. Some methods make use of public and private tokens wherein the public token is derivable from the public token by use of a one-way function. Further methods replace the tokens with one-time signature key pairs. A further method makes use of a group signature scheme to allow traceability of user devices.

The application discloses a safe and credible distributed industrial internet identification analysis method and device, wherein the method comprises the following steps: identifier structure setting; trusted identity authentication; trusted identification registration; identification security analysis. The application firstly provides trusted authentication for the identity and identification of the nodes in the identification analysis system through the ordered multiple group signature technology, ensures the safe and credible identification source data, secondly improves the identifier structure setting by introducing the IPFS technology, thereby realizing the strong correlation of the identification and the source data, and finally realizes the safe storage and safe transmission of the identity certificate, the identification and the source data through the block chain and the asymmetric encryption technology. The application utilizes the block chain and the ordered multiple group signature algorithm, ensures the safe and credible industrial internet identification analysis system process, binds the identification and the source data, realizes the source safety of the industrial internet identification, and prevents the malicious modification of the enterprises on the industrial internet identification and the source data.