SSL/TLS secure-socket code for embedded devices

January 08, 2015 // By Graham Prophet
Segger’s emSSL is a ground-up implementation of secure sockets that are the backbone of secure communications on the Internet today. Written to run on single-chip embedded devices, emSSL integrates seamlessly with embOS/IP or, alternatively, any IP stack that supports plain sockets, or any bidirectional communications channel.

emSSL supports TLS version 1, 1.1, and 1.2 out of the box and provides modern cipher suites that offer robust authentication, confidentiality, message integrity, and forward secrecy. Whilst being compact, it is also efficient in terms of RAM, ROM, and processor load. emSSL's highly flexible and straightforward configuration targets small devices by linking only what's necessary, and at the same time avoids a sea of preprocessor defines that drown other source code products.

“emSSL cements our intention to strengthen and augment Segger middleware with modern security features demanded by our industrial customers,” says Rolf Segger, owner and CTO of Segger. “emSSL is one more product that Segger has introduced to the secure range, and complements the features of emSecure, our digital signature suite.”

emSSL is delivered as a set of source files, for complete transparency, ready to integrate into customer applications, and includes plain-English documentation.

embOS/IP is a high performance IP stack specifically designed for embedded systems. The flexible stack supports all popular protocols such as ACD, ARP, AutoIP, DHCP, DNS, FTP, HTTP, ICMP, IPv4, Multicast, NetBIOS Name Service, PPP/PPPoE, SMTP, SNTP, TCP, UDP, UPnP, VLAN, and many more. embOS/IP is fully compliant to all related RFCs.