The Single Sign-On is used for users to solve the logging in and the passwords managing problems in different application systems. However, the traditional SSO system cannot provide an appropriate solution for legacy systems which are independent and hardly modifiable. In order to solve the problem, we present a new SSO method based on the SAML legacy System. In this paper, the structure of the new method is given, the communication protocol between users and identity provider is defined, and the security of the method is analyzed.

This paper proposes a real-time compensated pentaprism scanning wavefront detection method to achieve real-time compensation for scanning errors occurring during prism movement along a guide rail. The method is based on existing pentaprism scanning wavefront detection technology and it is realized by applying self-collimation-based three-dimensional error compensation. Using theoretical and data analyses of a detection experiment, the reliability of the optimized pentaprism scanning detection method is verified, thus effectively ensuring the reasonable estimation of the interferometry surface measurement uncertainty.

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