Cyber Security for Databus: MIL-STD-1553 & ARINC-429

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Cyber Security for Databus: Intrusion Detection and Prevention

For Cyber Security: MIL-STD-1553, ARINC-429 & ARINC-825-4

Why is cyber security for databus important? Most military and civil aircraft, military ground vehicles, cars and spacecraft rely on multi-drop data buses for the exchange of information between interconnected systems.

Because of this, they’re vulnerable to having their systems “spoofed” or impersonated by rogue nodes or malware software sending malicious messages over data buses.

Eventually, this could result in the failure of critical vehicle systems or in the case of military systems, mission failure. Because of this, there’s a need to perform continuous real time authentication for all received messages.

Sital’s patented Safe and Secure (SnS) technology provides a unique solution exactly for that concern!

For approximately the first four seconds following power-up, Sital Technology’s SnS sensors operate in their Learning mode by monitoring transmissions from all nodes on a data bus and characterizing all nodes physical layers by computing their unique fingerprints (or signatures). Each node’s fingerprint consists of a set of parameters specific to each node’s physical layer characteristics (transmitter, transformer, length of bus cable, etc.)

Following that, the sensors transition into their Monitoring mode.

In Monitoring mode, for each message received over the data bus, The SnS sensor compares the received message’s fingerprint parameters with those of the transmitting node’s expected fingerprint.

If there’s a mismatch between the received and expected fingerprints, this indicates either a cyber authentication violation or wire fault.

Sital’s SnS sensors are able to distinguish between the two and notify host software through its API.

In the case of a wire fault, the SnS sensor also identifies the type of fault (open or short circuit) and its approximate location. In either case, it is up to host software to then execute its security playbook and take the appropriate system-level actions.


For more information, news and documentations go to our SnS News releases page 

For more information about our Safe ans Secure MIL-STD-1553 SnS.

Sital is an AMD and Xilinx partner for FPGA solutions

Aslo Sital is a Lattice Partner

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    Cyber Security for Databus - Product Features

    Detects cyber authentication violations and electrical wire faults
    Compact VHDL IP code and software API/library for integration into LRUs, ECUs, Car Central Gateways (CCG) or avionic systems
    For MIL-STD-1553, CAN BUS/FD/ARINC-825-4 and ARINC-429 Protocols
    Easily scalable across multiple platform
    Protects all connected systems on the bus from a single location
    SnS sensor can be added to an existing system or embedded into a standalone unit
    Possible to protect all buses from a single gateway or avionic unit
    Passive Technology without any transmissions on Data Buses
    100% IDS
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    Wire Fault Detection

    The SnS’s Wire Fault Detection IP is a technology that’s applicable to all data bus interfaces. This technology provides continuous real-time detection and location of intermittent or continuous open or short circuit faults in data bus cables, bus couplers, connectors, stubs, LRUs and bus terminators.


    About Sital

    Sital’s mission is to provide safe & secure DataBus Communication Solutions.


    Our worldwide customers rely on Sital’s novelty to resolve the most challenging DataBus problems while optimizing production, quality, and cost.


    What is 1553? Understanding the Standard


    MIL-STD-1553 is a military standard that defines the mechanical, electrical, and functional characteristics of a serial data bus. It was originally designed for the robust, reliable digital information exchange between avionics systems. Sital Technology leverages this standard to offer advanced communication solutions. We guarantee our products meet the rigorous demands of aerospace, automotive, and defense applications.


    Sital offers the best-in-class IP cores for 1553 and specializes in integrated FPGA solutions. Our IP cores can work with any FPGA and are designed for accelerated processing. They are highly parallelized, allowing for multiple operations to be executed simultaneously. Our IP cores’ high compliance and efficient FPGA integration make Sital’s FPGA solutions the fastest in the market.

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