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Revision Date Username Comment
905 Feb 2015 - 15:37sever408?TODO: according to John D. McLean? oral history, IBM RACF was going for a C2 cert and got C1. Research and confirm, perhaps gather data on the difficulties of achieving these certification levels. DEC also had a system they abandoned.

http://en.wikipedia.org/wiki/Resource_Access_Control_Facility http://conservancy.umn.edu/bitstream/handle/11299/164989/oh437jdm.pdf?sequence=1&isAllowed=y (pg27) 

802 Feb 2015 - 12:37ThomasMisaAttached file OrangeBook.jpg 
703 Oct 2013 - 15:28norqu036? 
619 Jun 2013 - 12:38ThomasMisa 
513 Jun 2013 - 12:21NicLewis 
427 Mar 2013 - 09:43NicLewis 
322 Mar 2013 - 10:59NicLewis 
225 Feb 2013 - 10:13NicLewis 
120 Feb 2013 - 10:40NicLewisAttached file tcsec.pdf 

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You are here: UMWiki>CBI_ComputerSecurity Web>Publications>PubDoD520028TCSEC (revision 7)

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DoD 5200.28 (TCSEC)

 

The Trusted Computer System Evaluation Criteria (TCSEC), known as the Orange Book, was the United States Department of Defense standard that set basic assessment requirements for security controls built into a computer system. First published in 1983, and updated in 1985, the TCSEC was the centerpiece of the Rainbow Series of DoD security publications.

TCSEC defined four levels of computer security: D, C, B, and A, where D is minimal protection, C is discretionary protection, B is mandatory protection, and A is verified protection, with C, B, and A containing additional subdivisions, called classes. Within each level, higher numbers indicate higher levels of security. For example B3 had greater security than B2, and B2 had greater security than B1.

Relatively few computer systems ever achieved the highest levels of security, which required a system to meet stringent function specifications as well as formal design and verification.

The TCSEC was canceled by the DoD in 2002 and was replaced by the international Common Criteria standard of 2005.

Additional Resources:

  • TCSEC.pdf: DoD 5200.28 (TCSEC) Orange Book (1985 version)
Topic attachments
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pdfpdf tcsec.pdf manage 423.1 K 20 Feb 2013 - 10:40 NicLewis DoD 5200.28 (TCSEC)
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Topic revision: r7 - 03 Oct 2013 - 15:28:35 - norqu036
 
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