PROTECTING MOBILE AGENTS IN ELECTRONIC COMMERCE BY USING UNDETACHABLE SIGNATURES BASED ON CONIC CURVES

摘要

Based on analysis of security problems in malicious hosts, a scheme of secure electronic transactions is proposed. This scheme uses undetachable digital signatures technique and public key encryption algorithms based on conic curves to achieve following characteristics: first, the identity of a shop and a customer cannot be forged. Second, the requirements of a customer and the bid of a shop cannot be detached. Third, the identity and the bid information of a shop keep private against other shops. Finally, it is to resist replay attacks. Compared to other undetachable digital signature schemes, this scheme also has some computational advantages.