Trusted time network calibration system and trusted time digital service

• Main Authors: FANG XIANG, HE WENKUI, CHO JUNG-EUI, LIANG YANLIN, XIONG XINGCHUANG, LIU ZHEN
• Format: Patent
• Language: Chinese; English
• Published: 07.03.2023
• Subjects: ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; MULTIPLEX COMMUNICATION; TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION

The invention discloses a trusted time network calibration system and a method for providing trusted time service based on the system. The system comprises a time source traced to time coordinated time (UTC); the NTP synchronization server is connected with the time source, provides NTP synchronization service and records NTP synchronization logs of a server side; the time calibration server is used for generating and issuing a digital calibration certificate and providing an effective state query of the digital calibration certificate; and a trusted time device for providing a trusted time service with a digital calibration certificate to an external program by synchronizing the calibration system time with the NTP synchronization server and acquiring the digital calibration certificate from the time calibration server. And a method of providing the trusted time digital service. By using the system and the method provided by the invention, the accuracy of time calibration of the trusted time device, the mach