Department C Incorporated (DCI) is an engineering research and development company with over 4 decades of engineering, business, and policy experience in the networking and Internet arena. It develops innovative networking products, solutions, and intellectual property. Expertise includes WiFi, embedded systems, IoT, NFC Tags, PKI, secure email, HSM design, protocols: LDAP, TCP/IP, DNS, IPX, Q.921/931, H.323, X.509, DECNET, X.25, UUCP, MEP2, BiSync, SNA/SDLC. DNSSEC, NAT