enigma-node-types

Canonical node-facing types and strict codecs for Enigma components. Endpoints exchange hashed user identifiers instead of raw usernames, keeping registry, relay, and SFU traffic aligned while limiting metadata exposure.

Highlights:

• Deterministic UserId hashing from usernames using BLAKE3 with a fixed domain separation string.
• Optional username_hint field; omit it when privacy matters.
• Validated payloads for registry, presence, node listings, and relay envelopes.
• Relay envelopes carry opaque, encoded blobs; intermediaries should forward without decrypting.

Usage:

1. Construct and validate types locally (e.g., PublicIdentity::validate, RelayEnvelope::validate).
2. Encode/decode JSON with to_json_string and from_json_str; unknown fields are rejected.
3. Prefer UserId over plaintext usernames in network endpoints; hints are optional.