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Evaluating TOE

Evaluating TOE. Common Evaluation Methodology (CEM). A method of applying the CC requirements consistently and uniformly during evaluation of TOE Describes the minimum actions that an evaluator must perform in order to conduct an evaluation of a PP, ST, and TOE. Principles of Evaluation.

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Evaluating TOE

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  1. Evaluating TOE

  2. Common Evaluation Methodology (CEM) • A method of applying the CC requirements consistently and uniformly during evaluation of TOE • Describes the minimum actions that an evaluator must perform in order to conduct an evaluation of a PP, ST, and TOE

  3. Principles of Evaluation • Appropriateness – Evaluators will perform their duties to meet their responsibilities as consistent with the targeted EAL • Impartiality – Evaluator’s evaluation will be impartial without any conflicts of interest • Objectivity – Evaluator’s will perform their duties with minimum subjectivity or opinion • Repeatability and reproducibility – Evaluators will achieve the same results given the same TOE and supporting evidence • Soundness of results – Results will be complete and accurate

  4. Parties involved in the evaluation process • Sponsor – • User, industry group, government or other entities that want a product evaluated • Responsible for establishing the agreements necessary to perform the evaluation • Support the evaluator (evaluation evidence, training and other support) • Funds the process

  5. Parties involved in the evaluation process • Developer • Actual producer of the TOE • Supports evaluation by producing and maintaining the evaluation evidence

  6. Parties involved in the evaluation process • Evaluator • Laboratory certified by the overseer • Performs duties as specified by the CC • Receives the evaluation evidence • Requests and receives support from the overseer • Documents with supporting evidence the overall verdict and any conditional verdicts.

  7. Parties involved in the evaluation process • Overseer • Validation body. CC organization of the country • Assures through use of an appointed validator • Provides guidance and interpretations of the CC • Approves or disapproves the overall verdict

  8. Evaluation Process – Preparation Phase • Sponsor contacts the evaluator to begin process of evaluation under the CC • Sponsor or developer supplies the evaluators the evaluation deliverables, • Feasibility study is conducted to develop • List of evaluation deliverables • list of evaluation activities, • sampling requirements in CC that the evaluation will address • Sponsors and evaluators sign an agreement to establish the framework for evaluation

  9. Evaluation Process – Conduct Phase • Evaluator develops the evaluation actions based on the deliverables • Evaluator may write observation report (OR) to seek clarification from the overseer • Evaluator may identify a potential weakness and seek additional information from the developer or sponsor

  10. Conclusion phase • Evaluator gives the Evaluation technical report (ETR) to the overseer

  11. Evaluator verdicts • Pass: Requirements for the PP, ST or TOE are met • Fail: Requirements for the PP, ST or TOE have not been met • Inconclusive: Default status until the evaluator either passes or fails the product. • All constituent verdicts must pass to receive an overall pass verdict.

  12. Evaluation Technical Report (ETR) • ETR is used to justify the verdict of the evaluator

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