How to obtain the number and type of parameters in the ABI of a non open source contract

[nick199910]

How to obtain the number and type of parameters in the ABI of a non open source contract

[von-steinkirch]

good question.
let's see whether the channel engage, otherwise i will give you my own take in a couple of weeks.

[monperrus]

see paper "SigRec: Automatic Recovery of Function Signatures in Smart Contracts" https://www4.comp.polyu.edu.hk/~csxluo/SigRec.pdf