信息屏障技术的示范装置——能谱遮盖控制器

A spectral blanking-out controller for demonstration of information barrier technology

能谱遮盖控制器是信息屏障技术的示范装置,意在通过简单的实例说明信息屏障技术的双重作用以及为了实现这些作用所必需满足的基本设计要求,为该技术的深入研究奠定基础.简要介绍了样机的作用、设计要素和所采用的信息屏障措施.既要考虑到核查技术的有效性,又要尽可能堵塞各种泄密途径,同时还要使系统的设计信息公开化,使得核查人员能够通过系统设计认证,增加对核查结果的信任度.

Information barrier technology has become more and more important in the R＆D of radiation fingerprint verification associated with classified items such as nuclear warheads, nuclear components and military - used nuclear materials. The function of information barriers is two-fold： one is to prevent the classified information from leaking out; the other is to provide creditable verification. To fulfill these two functions, the information barriers for a viable verification system （including all its hardware and software） must be designed on the basic principles of protecting classified information and the ability to authenticate. The Spectral Blanking-out Controller （SBC） is developed to illustrate the two functions of the information barriers and to explore some practice measures to meet the required design fundamentals. This paper briefs the task assigned to the SBC, the specific design concerns and the practical information barrier measures. The R＆D of the SBC embodies the concepts of information barrier technology and has to confom to the basic guidelines： If a verification system is expected to possess strict information barriers, the design of the system must be integrative with due considerations given to the factors such as the efficiency of the verification technique, the possible measures to protect the classified information from directly or indirectly leaking out, the complete openness in all aspects of the system, for the inspectors to authenticate the system for the sake of achieving certain degree of confidence on the verification results.