tls notes

Author: Nikolay-Kha

DeviceHiveESP8266.md

@@ -5,6 +5,7 @@
 # Table of contents
   * [Overview](#overview)
   * [Getting started](#getting-started)
+  * [SSL support](#ssl-support)
   * [Local services](#local-services)
     * [mDNS](#mdns)
     * [RESTful API](#restful-api)
@@ -151,6 +152,9 @@ After rebooting you can send commands to DeviceHive server or local RESTful API
 
 Now you can start writing your own program to create your own IoT devices with your favorite language and frameworks using DeviceHive [RESTful API](http://devicehive.com/restful) which you can transmitted with HTTP(S) or Websockets. List of accepted command for ESP8266 is listed in this document.
 
+# SSL support
+Firmware supports encrypted WebSocket server connectity using Transport Layer Security (TLS). Server should support TLSv1.1 and TLS_RSA_WITH_AES_128_CBC_SHA or TLS_RSA_WITH_AES_256_CBC_SHA cipher.
+
 # Local services
 Firmware sets chip hostname and announce chip with mDNS using configured DeviceId. Hostname is limited with 32 chars, further DeiviceId's chars are omitted.