Is it possible to reconstruct the user's private key to let them "eject" from TSS MPC?

[pugbyte]

Hi there, I'm very keenly interested in using Web3Auth's TSS MPC technology for a project in the near-future. This package looks very promising, but the documentation is still under construction. One thing I'm wondering is if it's possible to reconstruct the user's private key and let them take it elsewhere (imagine that they wanted to import this wallet into MetaMask). Any insight would be appreciated.

[jasperverbeet]

When initializing the traditional Web3Auth SDK you get a "SafeEmitterProvider" that you can call with:

await web3Auth_.provider?.request({
    method: 'private_key'
})) as string;

I'm assuming it's the same for their MPC SDK. See more details here:

https://web3auth.io/docs/sdk/helper-sdks/providers/#exporting-web3auth-private-key