Trusted Computer System Evaluation Criteria

Trusted Computer System Evaluation Criteria (TCSEC) is a <a href="/facts/United_States/P0sCdLe5">United States</a> <a href="/facts/Government_of_the_United_States/VJCxUaf7">Government</a> <a href="/facts/United_States_Department_of_Defense/dWAvf7e3">Department of Defense</a> (DoD) standard that sets basic requirements for assessing the effectiveness of <a href="/facts/Computer_security/7E5dIy7G">computer security</a> controls built into a <a href="/facts/Computer_system/SQe1aK05">computer system</a>. The TCSEC was used to evaluate, classify, and select computer systems being considered for the processing, storage, and retrieval of sensitive or <a href="/facts/Classified_information/og7wn3tD">classified information</a>.
The TCSEC, frequently referred to as the Orange Book, is the centerpiece of the DoD <a href="/facts/Rainbow_Series/TlHChcFP">Rainbow Series</a> publications. Initially issued in 1983 by the <a href="/facts/National_Computer_Security_Center/Sg6MGV1o">National Computer Security Center</a> (NCSC), an arm of the <a href="/facts/National_Security_Agency/Sg6MGV1o">National Security Agency</a>, and then updated in 1985, TCSEC was eventually replaced by the <a href="/facts/Common_Criteria/6Tln3R2k">Common Criteria</a> international standard, originally published in 2005.

Trusted Computer System Evaluation Criteria open-in-new

Trusted Computer System Evaluation Criteria