Research on digital signature of P2P e-commerce

P2P e-commerce becomes one of most important e-business models. The paper about e-commerce activities has focused on the trust risk increasingly. To solve identity trust problem in e-commerce transactions, the idea of threshold cryptography is introduced and a distributed digital signature scheme based on the P2P e-commerce is designed in this paper. The threshold program having the trust node and enhancing safty based on the Elliptic Curve digital signature is provided in P2P environment, which uses elliptic encryption technology and safe Elliptic Curves, combining with the threshold system, verifiable secret sharing and proactive secret sharing system. The trust node is responsible for producing the key, the sub-key and distributing sub-key. Then it revokes the key immediately to ensure key security. The threshold signature scheme based on elliptic encryption technology for solving the risks of P2P e-commerce, which architecture of authority is built by trust degree nodes.