Yes, I've seen various variations and implementations of such schemes. It's mostly as straight-forward as it sounds (with the usual gotchas). More interesting

Yes, I've seen various variations and implementations of such schemes. It's mostly as straight-forward as it sounds (with the usual gotchas). More interesting and recent is zkKYC (2021): https://eprint.iacr.org/2021/907 https://eprint.iacr.org/2021/907