@UpdateSecurityCredentials.ResponsePayload shall be an octet string containing the DER encoding of the populated ASN.1 structure (as laid out in Section 13.3.5.11);
Grouping Header in the Response shall be constructed as specified in Section 7.2.7 with Business Target ID being the Entity Identifier specified in the corresponding Command’s Grouping Header; and
SMD Signature shall be generated as specified in Section 6.3.5.