What is Ephemeral Key?
Ephemeral Key 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 “Ephemeral Key” Used in Practice?
The use of an ephemeral key in TLS ensures that even if a session key is compromised, past communications remain secure due to forward secrecy.
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Who Needs to Know This Term?
- SOC Analysts
- Security Engineers
- Incident Responders
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What is Ephemeral Key?
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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