Function key_share::reconstruct_secret_key

pub fn reconstruct_secret_key<E: Curve>(
    key_shares: &[impl AsRef<CoreKeyShare<E>>]
) -> Result<SecretScalar<E>, ReconstructError>

Available on crate feature spof only.

Reconstructs a secret key from set of at least min_signers key shares

Requires at least min_signers distinct key shares. Returns error if input is invalid.

Note that, normally, secret key is not supposed to be reconstructed, and key shares should never be at one place. This basically defeats purpose of MPC and creates single point of failure/trust.