Hardware Trojan for Ring-Osc-Based TRNGs (2019)(arxiv.org)
arxiv.org
Hardware Trojan for Ring-Osc-Based TRNGs (2019)
https://arxiv.org/abs/1910.00735
1 comments
> True random number generators (TRNGs) are essential components of cryptographic designs, which are used to generate private keys for encryption and authentication, and are used in masking countermeasures. In this work, we present a mechanism to design a stealthy parametric hardware Trojan for a ring oscillator based TRNG architecture proposed by Yang et al. at ISSCC 2014. Once the Trojan is triggered the malicious TRNG generates predictable non-random outputs. Such a Trojan does not require any additional logic (even a single gate) and is purely based on subtle manipulations on the sub-transistor level.