This paper proposes a formalization and verification technique for security specifications, based on common criteria. Generally, it is difficult to define reliable security properties that should be applied to validate an information system. Therefore, we have applied security functional requirements that are defined in the ISO/IEC 15408 common criteria to the formal verification of security specifications. We formalized the security criteria of ISO/IEC 15408 and developed a process, using Z notation, for verifying security specifications. We also demonstrate some examples of the verification instances using the theorem prover Z/EVES. In the verification process, one can verify strictly whether specifications satisfy the security criteria defined in ISO/IEC 15408.
This paper proposes a security specification verification technique based on the international standard ISO/IEC 15408. We formalized the security criteria of ISO/IEC 15408 and developed the verification technique of security specifications based on the formalized criteria with formal methods. With the technique, one can formally verify whether or not specifications satisfy the security criteria of ISO/IEC 15408. Ambiguity and/or oversight about security in specifications written in natural language can also be detected.
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