# Class __builtin.Nettle.MAC

Inheritance graph

Description

  Base class for Message Authentication Codes (MAC)s.

  These are hashes that have been extended with a secret key.

Inherit __Hash

  `inherit .__Hash : __Hash`

Constant mac_jwa_id

  ```protected` constant` `string` __builtin.Nettle.MAC.`mac_jwa_id``

Description

  JWS algorithm id (if any). Overloaded by the actual implementations.

Note

  Never access this value directly. Use jwa().

See also

  jwa()