基于安全性能的单项竞价交易模式研究与实现

针对大宗商品交易中的数据安全与隐私保护问题，从安全性能的角度进行分析,以单项竞价交易模式为例，在不依赖于第三方认证机构可信的条件下，通过盲签名技术对用户的身份进行认证，实现对其身份信息的保密。交易过程中引用Bit承诺协议，保证交易商双方的不可抵赖性。安全性分析结果表明，此方案在第三方不可信的情况下能够有效保护交易过程的安全进行。

Single Bid Trading Mode Based on Security Performance

This paper analyzes the data security and privacy protection in commodity trading from the perspective of security performance. Taking the single bidding transaction model as an example, the blind signature technology is used to authenticate the users identity without relying on the credibility of the third party authentication agency, it realized the secret of the users identity information. The Bit commitment agreement is used during the transaction to guarantee the non-repudiation of both parties. The result of security analysis shows that the scheme can effectively protect the security of the transaction process even if the third party is not trusted.