BUS-OFF ATTACK PREVENTION CIRCUIT

Organization Name

intel corporation

Inventor(s)

Marcio Rogerio Juliato of Portland OR (US)

Shabbir Ahmed of Beaverton OR (US)

Santosh Ghosh of Hillsboro OR (US)

Christopher Gutierrez of Hillsboro OR (US)

Manoj R. Sastry of Portland OR (US)

BUS-OFF ATTACK PREVENTION CIRCUIT - A simplified explanation of the abstract

This abstract first appeared for US patent application 20240179160 titled 'BUS-OFF ATTACK PREVENTION CIRCUIT

Simplified Explanation

The abstract describes an electronic device for bus-off attack detection and prevention, including circuitry to detect transmitted messages, analyze bit mismatches, suspend transmissions, determine fault or attack, and signal the protected node.

Detect transmitted messages from a protected node to the bus
Analyze bit mismatches of transmitted messages on the bus
Suspend further transmissions from the protected node for analysis
Determine if bit mismatches represent a bus fault or active attack
Signal the protected node about the occurrence of a fault

Potential Applications

The technology described in the patent application could be applied in various industries where secure communication over a bus network is essential, such as automotive systems, industrial control systems, and IoT devices.

Problems Solved

This technology helps in detecting and preventing bus-off attacks, which can disrupt communication and compromise the security and integrity of the network. By quickly identifying and responding to such attacks, the system can maintain the reliability and confidentiality of the data being transmitted.

Benefits

- Enhanced security for bus networks - Early detection and prevention of bus-off attacks - Improved reliability of communication systems - Protection of sensitive data and information

Potential Commercial Applications

The technology could be utilized by companies developing communication systems for vehicles, manufacturing plants, smart home devices, and other interconnected systems. A potential commercial application could be "Securing Bus Networks: Preventing Bus-Off Attacks."

Possible Prior Art

One possible prior art could be systems that detect and prevent cyber-attacks on communication networks, such as intrusion detection systems for wired and wireless networks. These systems may have similarities in terms of analyzing network traffic for anomalies and taking preventive measures.

What are the specific components of the bus-off prevention circuitry described in the patent application?

The specific components of the bus-off prevention circuitry include the ability to detect transmitted messages, analyze bit mismatches, suspend further transmissions, determine fault or attack, and signal the protected node.

How does the electronic device differentiate between a bus fault and an active attack against the protected node?

The electronic device differentiates between a bus fault and an active attack by analyzing the nature and pattern of the bit mismatches detected on the bus. If the mismatches are random and sporadic, it may indicate a bus fault, whereas if they are deliberate and targeted, it may suggest an active attack against the protected node.

Original Abstract Submitted

various systems and methods for bus-off attack detection are described herein. an electronic device for bus-off attack detection and prevention includes bus-off prevention circuitry coupled to a protected node on a bus, the bus-off prevention circuitry to: detect a transmitted message from the protected node to the bus; detect a bit mismatch of the transmitted message on the bus; suspend further transmissions from the protected node while the bus is analyzed; determine whether the bit mismatch represents a bus fault or an active attack against the protected node; and signal the protected node indicating whether a fault has occurred.