Before revision: Similar principles The Trusted Computer System Evaluation Criteria (TCSEC) concept of trusted computing base (TCB) minimization is a far more stringent requirement that is only applicable to the functionally strongest assurance classes , viz., B3 and A1 (which are evidentiarily different but functionally identical ).
After revision: Similar principles The Trusted Computer System Evaluation Criteria (TCSEC) concept of trusted computing base (TCB) minimization is a far more stringent requirement that is only applicable to the functionally strongest assurance classes (Link to Trusted Computer System Evaluation Criteria section Divisions and classes), namely the classes B3 and A1 (which are functionally identical but differ in terms of evidence and documentation requiredB3 ).