Transcript EIB Controls

Yishai Burt
Yosi Gabay
Supervisor: Prof. Ran Giladi
EIB/KNX Introduction
 The world's only open standard for home & building
control.
 Can work with a variety of media types, including
twisted pair, power line, RF, IR and even Ethernet.
 Decentralized -The components communicate with
each other, Distributed.
 Applications in: lighting, alarms, blinds/solar control,
automatic window control, energy management and
much more…
Our Inheritance Our Goals
 EIB Server
 Linux Only
 RS232 only
 Constant encryption
key
 Pocket Master Server
• EIB Server redesigned
• Cross-Platform
• RS232 or EIBnet/ip
• Diffie-Hellman
• Standalone Library,
General Client base
class
• SMS Server
• AMX Server
Design – EIB Network
 Communication via RS232 (BCU)
 Currently works only with Open Source Linux driver
 Communication via UDP (EIB/net Router)
 Cross Platform (Windows/Linux)
 UDP Multicast (using known port and Multicast address)
 Unsecure Messaging
 No Encryption
 No Authentication
Design – EIB Control Network
 Client Authentication
 User Name & Password
 Data Encryption
 Initial Private Key
 Diffie-Hellman Implementation
Design – AMX Network
 AMX Network
 Controls Audio/Video Devices
 Separate Protocol within AMX Network
 Message Translation (EIB <-> AMX)
 Authentication
 Encryption
 Currently Not implemented
Implementation - General
 Project Components
 Standalone Library (.dll in windows, .so in linux)
 Generic Base class for all clients
 EIB Server implemented as a separate process
 Multi Threaded
 Can be executed as service
 SMS Server implemented as separate process
 Derived from Generic Client base class
 RS232 interface to the cellular modem
Implementation – Diffie Hellman
 Generating Random numbers Through CPU time-stamp
 Miller-Rabin Algorithm to Determine Large Prime numbers
 Massive numbers are calculated using the power chaining rule
 Only correct messages are responded (avoiding port scanning)
Implementation – EIB Control Messages
Demonstration