Description
A novel side-channel-based reverse engineering technique is introduced, capable of reconstructing a procedure solely from inputs, outputs, and traces of execution. Beyond generic restrictions, no prior knowledge of the procedure or the chip it operates on is assumed. These restrictions confine the analysis to 8-bit RISC constant-time software implementations. Specifically, the feasibility of reconstructing a symmetric cryptographic cipher is demonstrated, even in scenarios where traces are sampled with information loss and noise, such as when measuring the power consumption of the chip.