Air Force TFPGA vs swIDch PLC OTAC: Side-by-Side Comparison (2026)

Air Force TFPGA: FPGA trust assessment tool for detecting hardware Trojans and counterfeits. built by GrammaTech. Core capabilities include FPGA self-characterization testing, Statistical analysis of circuit characteristics, Hardware Trojan detection..

swIDch PLC OTAC: MFA solution for OT devices using dynamic one-time authentication codes. built by swidch. Core capabilities include Dynamic one-time authentication code generation, Passwordless authentication for OT devices, Support for PLC, RTU, SCADA, and HMI devices..

Both serve the Industrial Control System Security market but differ in approach, feature depth, and target audience.

Air Force TFPGA differentiates with FPGA self-characterization testing, Statistical analysis of circuit characteristics, Hardware Trojan detection. swIDch PLC OTAC differentiates with Dynamic one-time authentication code generation, Passwordless authentication for OT devices, Support for PLC, RTU, SCADA, and HMI devices.

Air Force TFPGA is developed by GrammaTech. swIDch PLC OTAC is developed by swidch. Vendor maturity, funding stage, and team size can be important factors when evaluating long-term viability and support quality.

Air Force TFPGA and swIDch PLC OTAC serve similar Industrial Control System Security use cases: both are Industrial Control System Security tools. Review the feature comparison above to determine which fits your requirements.