DTLS-based Security with two-way Authentication for IoT
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In this draft the first key idea for a full two-way authentication
security scheme for the Internet of Things (IoT) based on existing
Internet standards, specifically the Datagram Transport Layer Security
(DTLS) protocol, is introduced. By relying on an established standard,
existing implementations, engineering techniques, and security
infrastructure can be reused, which enables an easy security uptake.
The proposed security scheme is, therefore, based on RSA, the most
widely used public key cryptography algorithm. It is designed to work
over standard communication stacks that offer UDP/IPv6 networking for
Low power Wireless Personal Area Networks (6LoWPANs). RSA is a bulky
solution at the moment but shows that it is possible using it on
constraint devices for security purposes. An optimization would be to
use elliptic curve cryptography. For sure the proposed handshake will
stay the same.