Evaluation Assurance Level - Assurance Levels - EAL5: Semiformally Designed and Tested

EAL5: Semiformally Designed and Tested

EAL5 permits a developer to gain maximum assurance from security engineering based upon rigorous commercial development practices supported by moderate application of specialist security engineering techniques. Such a TOE will probably be designed and developed with the intent of achieving EAL5 assurance. It is likely that the additional costs attributable to the EAL5 requirements, relative to rigorous development without the application of specialized techniques, will not be large. EAL5 is therefore applicable in those circumstances where developers or users require a high level of independently assured security in a planned development and require a rigorous development approach without incurring unreasonable costs attributable to specialist security engineering techniques.

Numerous smart card devices have been evaluated at EAL5, as have multilevel secure devices such as the Tenix Interactive Link. XTS-400 (STOP 6) is a general-purpose operating system which has been evaluated at EAL5 augmented.

LPAR on IBM System z is EAL5 Certified.

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