Complete a keygen happy path ceremony in axelar-core using rust-tssd

[ggutoski]

Current status of rust-tssd is a prototype keygen happy path passing only a minimal test. Next goal is the title: Complete a keygen happy path ceremony in axelar-core using rust-tssd.

Tasks

• Golang client for rust-tssd. I currently have a local golang rust-tssd client repo for rust-tssd with a basic test---this repo should be moved into the rust-tssd repo itself.
• Better tests: golang client, rust-tssd, thrush.
• thrush, rust-tssd should never panic---return errors instead.
• Rust-tssd does not yet store keys it generates. Add a KV store for (pubkey_name, pubkey_data). Need to search for a good KV store rust library.
• Swap rust-tssd into axelar-core, run a ceremony. Prerequisite: figure out the deserialization needs of the resulting pubkey in axelar-core.
• Code review?

[ggutoski]

Status

New library names: math library: thrush -> tofn, grpc wrapper daemon: rust-tssd -> tofnd.

Status of original tasks

1. Test clients for tofnd. Rust client included in tofnd. I have a quick-and-dirty golang client for tofnd: go-tofnd-client
2. Better tests. Not really.
3. tofn, tofnd should never panic. Some progress. API now includes error return values. But there's still some panic errors.
4. KV store for tofnd. No code. Preliminary investigation into candidates. See list below.
5. Figure out deserialization needs for keygen in axelar-core. Done. tofnd produces serialized pubkey in bitcoin format. This pubkey can be deserialized in axelar-core via the usual btcec package. Verified in go-tofnd-client.
6. Swap tofnd into axelar-core, run a ceremony. Barely started. I have code to swap in tofnd but it'll need to be hand-merged due to subsequent changes to axelar-core. No tests yet.

Notes

• tofn largely re-written with new design.
• Rust client for tofnd was brutal, took 3 stressful days of fighting with the tokio library.

Rust KV store candidates

Promising candidate: ex0dus-0x/microkv: Minimal and persistent key-value store designed with security in mind

Other contenders:

• fast key value store : rust Don't use leveldb
• SQLite as key-value store for concurrent Rust programs · Issue #1 · the-lean-crate/criner
• This also looks okay: spacejam/sled: the champagne of beta embedded databases, sled — Rust database // Lib.rs
• rocksdb - Rust
• mozilla/rkv: A simple, humane, typed Rust interface to LMDB.
• kv - Rust

[ggutoski]

Sprint concluded. Tasks rolled over to #4.

[neocho]

Hey ggutoski! Do you still have the go-tofnd-client to try out?