Other applications of CPA

1

Every tutorial or article regarding CPA uses AES or other crypto algorithms as examples. I was wondering if there were other applications of CPA beyond crypto? For example, could it be used to retrieve the bytes of a password on an 8-bit controller with constant-time processing (meaning here that timing attack/SPA is not applicable).

Are there examples of such applications out there? (Blogs, articles, etc…)

2

Not that I’m aware of. I suppose it could be applied to password checks, but for things like that where the leakage we’re looking for is a binary yes/no (i.e. is byte X of the password correct or not), simple power analysis is usually sufficient.