エフェメラルキーとは？
エフェメラルキー A cryptographic key generated for temporary use in a single session or operation, after which it is discarded and not reused, ensuring forward secrecy in protocols like TLS and ECDH.
Source: ISO 27001, NIST Cybersecurity Framework, MITRE ATT&CK
How is “エフェメラルキー” Used in Practice?
TLSでエフェメラルキーを使用すると、セッションキーが漏洩しても前方秘匿性により過去の通信が安全に保たれる。
Certification Exam Relevance
Who Needs to Know This Term?
- SOC Analysts
- Security Engineers
- Incident Responders
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エフェメラルキーとは？
A cryptographic key generated for temporary use in a single session or operation, after which it is discarded and not reused, ensuring forward secrecy in protocols like TLS and ECDH.
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