关键词: 口令认证, 一次一密, 视觉密码

Abstract:

The identity authentication for legal users is very important in information security. Authentication method based on traditional static password faces many security risks. This system is based on the features and advantages of visual cryptography. By using an improved algorithm from the practical safety, we achieve a complete set of onetime pad password authentication scheme and make the process of authentication safer and more reliable. The system adopts twofactor authentication method. By combining the fingerprint method and the visual cryptography method, the security is further improved. Finally, we realize an integrated system on the experimenter baseboard of AM3517. Experiment shows that the system is easy in operation and low cost in use, safe in identity authentication and can be extended easily. It will have broad applications in the near future.

Key words: identity authentication;onetime pad;visual cryptography