The Transport Layer Security (TLS), sometimes incorrectly referred as its predecessor: Secure Sockets Layer (SSL), helps securing messages over the network using symmetric cryptography, and optionally public-key cryptography (aka asymmetric cryptography). This works well in servers and computers, but with the Internet of Things, even low-power sensor nodes would benefit from secure communication. The trouble is that today’s commonly-implemented RSA- and Diffie-Hellman-type public-key protocols have a memory footprint that will not fit on resource-constrained microcontrollers systems, e.g. Arm Cortex-M0 based ones, and power consumption may also be an issue since many of those are battery-powered. I’m writing about this topic today, as there may be a better alternative for resource-constrained microcontrollers which I noticed in Arm Techcon 2019 schedule, with SecureRF Corporation’s session entitled “When it comes to connect IoT devices, how small is small?” that will present an alternative to TLS’s ECC and RSA based security that relies on […]
Group Theoretic Cryptography (GTC) Offers an Alternative to TLS’s ECC/RSA Security for Microcontrollers
