Many SCADA deployments in use today deploy no encryption within the communication protocols and use only operator based password controls to set parameters and read data registers. Analog voltage & current based inputs such as 4-20 mA and 0-5V DC cannot be digitally encrypted but all other types of data communicating on a bus using communications protocols can.
The attack vector for these analog devices rely on physical access as these layers are analog in nature, thus not vulnerable to remote attack. It is also not cost effective in most cases to replace analog sensing devices to address vulnerabilities at this level thus RUBIDEX™ solutions begin with focusing on the digital communication layer between device and controllers.
In order to secure the sensing and control device layer, RUBIDEX™ has created new low level firmware drivers for many SCADA devices that provide data encryption on communications buses using common protocols such as ModBus, BACNet, PROFINET and others. Encrypting data in the sensing/collection process combined with on-site block-chain based identity attestation guarantees that data cannot be modified or altered while in transit from sensor transducers to con- trollers and connected gateways.Learn more about RUBIDEX™ Custom Hardware Solutions