Encrypted electronic voting method and system supporting NP access structure in unsafe environment based on obfuscated circuit technology

• Main Authors: ZHANG MINGWU, WANG JING, WANG XINGBO, ZHONG YULU, WANG YUZHU
• Format: Patent
• Language: Chinese; English
• Published: 30.01.2024
• Subjects: ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION

The invention belongs to the technical field of information processing and the field of information security, and discloses an encrypted electronic voting method and system supporting an NP access structure in an unsafe environment based on a confusion circuit technology, and entities involved in the scheme comprise a voting party, a voting party formed by a plurality of voters, an identity certificate management center (CA) and a key distribution center (KDC). The scheme comprises five processes: 1, initializing a system; 2, an identity authentication and key distribution stage; 3, an encrypted bill voting stage; 4, the ticket counting party counts the ticket condition; and 5, a voting result disclosure stage. The voting scheme in the unsafe environment disclosed by the invention can meet the condition that the voting condition is not leaked and the voting system runs normally in the environment of malicious voters intending to snoop the voting condition of others and attack of a semi-honest server. In addit