关键词: 浏览器, 安全密钥, 第二因子设备, 一次性密码, 用户满意度

Abstract: To provide a security key with high security level, good user satisfaction and excellent operability, a security key based on web browser and online service is proposed. Security key is a kind of second-factor device, and the proposed design focuses on meeting the requirements of easy-to-use, easy-to-develop as well as security and privacy. The design is centered around registration, authentication, device authentication and client data deployment. Comprehensive analysis shows that the proposed security key leads to a higher security level and a better user satisfaction. Compared with One Time Password（OTP）, the proposed design needs less time for average authentication. The operation time required for log in is less than 1 s, while the registration time is within 2 s, so it can be extended to customer-oriented network applications.

Key words: web browser, secure keys, second factor device, one time password, user satisfaction