失効状態とは？
失効状態 The current validity state of a digital certificate as determined by a recognized Certificate Authority (CA), typically indicating whether a certificate is active, revoked, or suspended per OCSP, CRL, or similar mechanisms.
Source: ISO 27001, NIST Cybersecurity Framework, MITRE ATT&CK
How is “失効状態” Used in Practice?
サーバーはクライアント証明書を受け入れる前に、OCSPレスポンダーを使って失効状態を確認し、証明書が依然有効で発行CAにより失効されていないことを保証します。
Certification Exam Relevance
Who Needs to Know This Term?
- SOC Analysts
- Security Engineers
- Incident Responders
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失効状態とは？
The current validity state of a digital certificate as determined by a recognized Certificate Authority (CA), typically indicating whether a certificate is active, revoked, or suspended per OCSP, CRL, or similar mechanisms.
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