Definition[edit | edit source]

A cryptographic key is:

Discussion[edit | edit source]

There are several types of cryptographic keys that may be used in a CKM system: symmetric keys (e.g., one key used for both encryption and decryption), asymmetric public keys (the public component of a public-private key pair), and asymmetric private keys (the private component of a public-private key pair).

Keys are further classified by their life-time: ephemeral keys, which have a short life-time and are usually used only once; and static or long-term keys, which have a longer lifetime and are usually used multiple times.

References[edit | edit source]

  1. NIST, Electronic Authentication Guideline (NIST Special Publication 800-63) (Apr. 2006) (full-text).
  2. NIST FIPS 201; NIST FIPS 198.
  3. NIST, FIPS 140-2.

See also[edit | edit source]

Community content is available under CC-BY-SA unless otherwise noted.