TomMarchi

Finalizing a V2 of this HD Seed generation process once I confirm changes today will post the updated visual overview of it. This is what ensures Viat wallets embrace true wallet based cryptographic agility not just network based cryptography upgrades and forks. Viat's private keys effectively need to be isolated multi-source entropy pools built for deterministic seed generation. The final working seeds being used directly for generation must always be smaller than the default pool size to ensure long-term use. Ideally you will only need only one Viat "private key" for a lifetime and comfortably. The general idea is to have your Viat "private key" be capable of tons of different cryptographic operations and act as a Universal Profile for every single type of authentication based service. The newer additions i'm working on are a section of pools used for Zero-knowledge proofs & Homomorphic cryptography but more work for that needs to be done and is slated for v3. I'm also working on a building out a standard for those using these Viat Universal Profiles to prove they are the owner of a set of seemingly unrelated keys or proofs. This has specific use cases but likely won't be needed or used by most users.

The new V1 Viat HD Wallet standard built for the quantum era and then some. Hierarchical Deterministic Seed Derivation is the new basis for HD Universal Profiles that can work for any service but first for the new Viat wallet and swap. Code is already in the Beta repo. The root is 3 independent multi-source entropy pools from which all other seeds or cryptographic artifacts are derived. The wallet sites new Private Key section will instead reflect this with 768+ bytes of secret data (3 x 256 byte secrets) but a compact variant is also available. The private key itself is actually just base64 of a CBOR object with additional meta details to properly derive sub keys. Below is a diagram of the general process to derive a single fixed size seed for a PQ or legacy key pair being a 32 byte seed.