# Method Nettle.ARCTWO()->State()->set_decrypt_key()

Method set_decrypt_key

  ``State` set_decrypt_key(`string(8bit)` `key`, `void`|`int` `ekb`)`

Description

  Initializes the object for decryption. The `key` memory will be cleared before released.

Parameter `ekb`

  The effective number of bits in the key.

  ``UNDEFINED`` | Derive from the key size (ie `8 * sizeof(key)`).
  ``0`` | Convenience alias for max (ie `1024`).
  ``(1..1024)`` | Reduce the effective key size to the specified number of bits.

See also

  set_encrypt_key, crypt