Static key explained

A cryptographic key is called static if it is intended for use for a relatively long period of time and is typically intended for use in many instances of a cryptographic key establishment scheme. Contrast with an ephemeral key.

See also

• Cryptographic key types
• Recommendation for Key Management - Part 1: general, https://csrc.nist.gov/publications/detail/sp/800-57-part-1/rev-3/archive/2012-07-10
• NIST Cryptographic Toolkit