Common Criteria

“TCSEC is too hard, ITSEC is too soft, but the Common Criteria is just right,” said the baby bear.

The Orange Book and the Rainbow Series provide evaluation schemes that are too rigid for the business world. ITSEC attempted to provide a more flexible approach by separating the functionality and assurance attributes and considering the evaluation of entire systems. However, this flexibility added complexity because evaluators could mix and match functionality and assurance ratings, which resulted in too many classifications to keep straight. Because we are a species that continues to try to get it right, the next attempt for an effective and usable evaluation criteria was the Common Criteria.

In 1990, the International Organization ...

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