Our key splitting process is better than ordinary splitting and the distribution found in standard Verifiable Secret Sharing (VSS, or Shamir Secret Sharing). Instead, we use Distributed Key Generation (DKG) for ultimate security and privacy.
VSS starts with a "dealer" who generates a secret key and then distributes parts of that key to multiple devices. The problem with this system is that the full key is available in one place for both generation and signing. Even if the key is only held for a short time and you fully trust the device it's still not an efficient system. If the device was already compromised, you wouldn't know and you cannot be certain the key was deleted after creation. This kind of uncertainty is unhelpful when trying to safeguard your valuable assets.
Distributed Key Generation is a multi-party computation protocol. With DKG, your critically important secret key is never held by any single device. Maximum security is ensured at all times.