Competitive Advantages
- Joint and integrated mitigation of LPA and DPA provides area efficiency
- Provides both detection and mitigation of LPA attacks
- Consumes no additional power in the absence of an LPA attack
Summary
USF inventors have developed a security-adaptive (SA) voltage regulator to meet this need with a negligible overhead. The SA voltage converter design is based on the CoRe voltage converter which inherently protects the regulator against DPA SCAs, but is modified to monitor LPA attacks through the clock frequency. During normal and idle operation, the regulator operates as a conventional CoRe voltage converter and no redundant current is consumed. The SA converter is triggered to sink redundant current and inject noise to the discharging resistor only if the operating frequency falls within the LPA attack range, effectively evading the attack while keeping the power overhead of this countermeasure negligible. The SA regulator is experimentally verified to enhance the measurement-to-disclose value 6145 times compared to conventional cryptographic regulators.
Architecture of the Security-Adaptive Voltage Converter
Desired Partnerships
- License
- Sponsored Research
- Co-Development