Power Analysis: SPA & DPA
Capture power traces and perform simple and differential power analysis.
What Is Power Analysis?
Power analysis measures the instantaneous electrical power consumed by a device during cryptographic operations. Power draw depends on the data being processed, leaking secret key bits.
Simple Power Analysis (SPA)
In SPA, a single power trace is visually inspected. Square-and-multiply exponentiation leaks the exponent: a multiply step has a different power profile than a square step alone.