一种适用于数字商品交易的公平电子商务协议

Fair E-commerce protocol suitable for digital goods transaction

基于可验证加密机制和群签名技术,提出了一种适用于数字商品交易的公平电子商务协议。该协议仅需要一个离线的半可信第三方来提供公平性保障。在保证效率的前提下,降低了对第三方信任度的要求。同时,本协议还具备数字商品的有效性验证、自动争议仲裁、消费者匿名性保护等安全属性。

A fair e-commerce protocol based on verifiable encryption schemes and group signature was proposed. It was suitable for transaction of digital goods. The protocol only used an off-line semi-trusted third party to ensure the fairness. So it could reduce the requirement of trust level of third party under the condition of keeping high efficiency. In addition, the security properties were provided including digital good validation, automated dispute resolution, and anonymous protection of customers.