Software defined network data secure transmission method based on threshold secret sharing

• Main Authors: WANG XIN, LIU WEI, QIANG WEIZHONG, AN PENGWEI, WANG YANG, CHEN JIANREN, SHENG KAINAN, WANG YINGCHAO, WU JUNSHUANG, JI WEIWEI, CHEN JUNYING
• Format: Patent
• Language: Chinese; English
• Published: 22.02.2022
• Subjects: ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION

The invention relates to a software defined network data secure transmission method based on threshold secret sharing, belongs to the technical field of network space security, and solves the problems of insufficient security and poor reliability of network data transmission in the existing Internet of Things. The method comprises the steps that: a switch receives a connection request data packet sent by a source host and sends the connection request data packet to a controller; the controller identifies whether a forwarding path needs to be reselected according to a historical communication record and a network topology; if so, the controller calculates to obtain a plurality of new forwarding paths and path weights; after the source host receives a connection request reply sent by the destination host, a k-n threshold encryption algorithm is operated to encrypt original data to obtain n parts of ciphertext data, and k forwarding paths are selected according to the current multiple forwarding paths and path w