why is ECSDA signature in software protection useful? as they can be jumped over

Question

I was reading some book and mentioned so called ECDSA ( The Elliptic Curve Digital Signature Algorithm ) is used to generate serial numbers which are difficult to crack

My understanding is that we can always STATIC/DYNAMIC analysis the assembly and change those JMP codes to what we want (CRACKing). why we spent that huge effort do that complex serial number generation ? doesn't sound worthwhile to me.

Answer 1

It turns out there are techniques that enforces the EXECUTABLE file sanity checks, this technique together with the binary code protection techniques drive the software protection vehicle running forward