关键词: 协同签名, 商用密码算法, 交易系统, 身份认证, SSL协议

Abstract: This paper introduces the background of the application of commercial cryptographic algorithm, analyzes the current situation and security risks of the cryptographic application of the securities online trading system, and proposes a new online trading cryptographic application scheme witch is explained in detail from three aspects of system architecture, key cryptographic technologies involved and key cryptographic application scenarios, demonstrates the important role played by the State Secret in strengthening user identity authentication and data transmission encryption, improves the drawbacks of traditional solutions that rely on hardware USBKey to achieve cryptographic functions. The research is also useful for other industries to promote the application of commercial cryptographic algorithm.

Key words: threshold signature, commercial cryptographic algorithm, exchange system, authentication, SSL protocol