Ephemeral Key
nounverified· unreviewed·updated Aug 30, 2026
A cryptographic key that is generated for each execution of a key establishment process and that meets other requirements of the key type (e.g., unique to each message or session). In some cases, ephemeral keys are used more than once within a single session (e.g., broadcast applications) where the sender generates only one ephemeral key pair per message, and the private key is combined separately with each recipient’s public key.
MWENISTIR 7298: Glossary of Key Information Security Terms, Revision 2
Classifications
Entity Type
Credential0%rule-basedmulti_axis_classifier_low_confidence.v1
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Sensitivity
Restricted75%llm-generatedllm:claude-haiku-4-5
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Information Class
—60%llm-generatedllm:claude-haiku-4-5
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Variants
- plural
- Ephemeral Keys
- possessive
- Ephemeral Key's
- pluralpossessive
- Ephemeral Keys'