Estimating Speedup Factor For Personal HSMs Based On Secure Elements

Estimating Speedup Factor For Personal HSMs Based On Secure Elements

연구 분야: Cryptography

학회: 2022 6th Cyber Security in Networking Conference (CSNet)

This paper presents experimental results in order to estimate speedup factor for personal HSM. A personal HSM is built over a grid of secure elements, and runs two TLS daemons, one for secure element programming, and another one for service interface. We presents on original personal HSM, working with secure element processors and I2C bus, which supports up to 16 secure elements. We perform tests that open simultaneous TLS sessions and compute signatures. The speedup factor is in the range 50 to 100. Finally we try to find an optimal performance/cost balance, and we argue that personal HSMs may have a better price to performance ratio than traditional HSMs in a not so far future.