Ephemeral key pair

{
  "id": "MLC-T-CYB-001585",
  "term": "Ephemeral key pair",
  "field": "Cybersecurity",
  "definition": "1. A key pair, consisting of a public key (i.e., an ephemeral public key) and a private key (i.e., an ephemeral private key) that is intended for a very short period of use. The key pair is ordinarily used in exactly one transaction of a cryptographic scheme; an exception to this is when the ephemeral key pair is used in multiple transactions for a key-transport broadcast. Contrast with a static key pair.\n\n2. A short-term key pair used with a public-key (asymmetric-key) algorithm that is generated when needed; the public key of an ephemeral key pair is not provided in a public key certificate, unlike static public keys which are often included in a certificate.",
  "references": [
    "NIST SP 800-56A Rev. 2 [Superseded]",
    "NIST SP 800-175B Rev. 1",
    "NIST CSRC Glossary"
  ],
  "url": "https://mlchart.com/terminology/cybersecurity/ephemeral-key-pair/"
}