Speaker Name: Patrick Haddad
Title: Electromagnetic Harmonic Attack on Transient Effect Ring Oscillator Based True Random Number Generator
Random number generation is a critical issue in most cryptographic appli- cations. Random numbers are used as confidential keys, but also as initial- ization vectors, challenges, nonces and masks in side channel attack coun- termeasures. For this reason, a security flaw in random number generation has a direct impact on the security of the whole cryptographic system. Con-trary to generators used for Monte Carlo simulations, those designed for cryptography must also generate unpredictable random numbers. The vulnerability of TRNGs to non-invasive attacks has been recently highlighted
Our paper presents a contactless attack on a TERO based TRNGs us- ing electromagnetic waves. Experiments show that a global exposure of the tested FPGA’s to parasitic electromagnetic fields has an impact on the qual- ity of the generated randomness. More precisely, the Hamming weight of the generated random numbers were processed in real-time during the ex- periments in order to detect and correlate the abnormal behaviour of the TRNG to the parasitic signal.
He’s focusing his research on RNG in integrated circuits and has authored several publications in the field of modeling and characterization of Physical True Random Number Generator (PTRNG).