EQZ-LDO: A Near-Zero EDP Overhead, >10M-Attack-Resilient, Secure Digital LDO featuring Attack-Detection and Detection-Driven Protection for a Correlation-Power-Analysis-Resilient IoT Device
Sung Justin Kim, Dongkwun Kim, Ayushparth Sharma, Mingoo Seok
Abstract
This paper presents EQZ-LDO, a digital low drop-out regulator (LDO) with attack detection and detection-driven protection for side-channel attack (SCA) resiliency. It typically incurs only 0.5% energy-delay-product (EDP) overhead since the proposed detection-driven scheme exercises protection only when the AES is under attack. This enables to amortize the EDP overhead over the lifetime of an Internet of Things (IoT) device. It still achieves very strong resiliency to SCA, demonstrating the protection of a 128b AES core from >10M-trace correlation power analysis (CPA).
Topics & Concepts
Overhead (engineering)Computer scienceComputer networkOperating systemElectrostatic Discharge in ElectronicsCryptographic Implementations and SecurityPhysical Unclonable Functions (PUFs) and Hardware Security