FC_DeriveKey - derive a key from a base key
CK_RV FC_DeriveKey( CK_SESSION_HANDLE hSession, CK_MECHANISM_PTR pMechanism, CK_OBJECT_HANDLE hBaseKey, CK_ATTRIBUTE_PTR pTemplate, CK_ULONG usAttributeCount, CK_OBJECT_HANDLE_PTR phKey );
hSessionpMechanismhBaseKeypWrappedKeypTemplateusAttributeCountphKeyFC_DeriveKey derives (decrypts) a key and creates a new key object.
A user must log into the token (to assume the NSS User role) before calling FC_DeriveKey.