SDC supports SOL007 NS Package security for Design, based on the package signature and certification (SOL007 3.3.1 Option 2).

SOL007 Option 2:
"The complete CSAR file shall be digitally signed with the NS designer private key. The NS designer delivers one zip file consisting of the CSAR file, a signature file and a certificate file that includes the NS designer public key. The certificate may also be included in the signature container, if the signature format allows that. "