AES Key Wrap Mechanism parameters

The mechanisms will accept an optional mechanism parameter as the Initialization vector which, if present, must be a fixed size array of 8 bytes, and, if NULL, will use the default initial value defined in Section 2.2.3.1 of [AES KEYWRAP].

The type of this parameter is CK_BYTE_PTR and the pointer points to the array of 8 bytes to be used as the initial value. The length shall be either 0 and the pointer NULL, or 8, and the pointer non-NULL.

RSA Security Inc. Public-Key Cryptography Standards - PKCS#11 - v230