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Microsoft® Windows® Internals: Microsoft Windows Server™ 2003, Windows XP, and Windows 2000, 4th Edition by David A. Solomon, Mark E. Russinovich

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Trusted Computer System Evaluation Critiera

The National Computer Security Center (NCSC, at http://www.radium.ncsc.mil/tpep/) was established in 1981 as part of the U.S. Department of Defense's (DoD) National Security Agency (NSA). One goal of the NCSC was to create a range of security ratings, listed in Table 8-1, to be used to indicate the degree of protection commercial operating systems, network components, and trusted applications offer. These security ratings, which can be found at http://www.radium.ncsc.mil/tpep/library/rainbow/5200.28-STD.html, were defined in 1983 and are commonly referred to as "the Orange Book."

Table 8-1. TCSEC Rating Levels

Rating

Description

A1

Verified Design

B3

Security Domains

B2

Structured Protection

B1

Labeled Security ...

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