[Archive] Is it possible for a user to export their private key in the new MPC Core Kit?

Embedded Wallets (Web3Auth)
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:classical_building: Archived Content from Web3Auth Community

This topic was originally posted by andre1 on 5/8/2023.
This content has been migrated from our previous community forum to preserve valuable discussions.

This is a question specifically regarding the new package @web3auth/mpc-core-kit. I understand that using TSS MPC, the user’s full private key is never assembled in the process of signing a transaction (or signing anything, really). That said, is it possible to allow a user to export their private key and self-custody it? I picked through the package and didn’t find anything about assembling/exporting the full private key.

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I’m very interested in this, too. Assuming web3auth goes down some time in the future, how could users with several key shares recover their private key / set up infrastructure to sign transactions with mpc?

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This is a critical question, and one that should be simple to answer: doe web3auth’s MPC implementation provide a mechanism to exit the platform via export of the full private key?

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Our team are looking into this and we will get back with further updates once more information is available.