Files
wallet/readme.md
T
grenadeandClaude Opus 5.5 f4cc7a1605
ci / gate (push) Failing after 1m25s
feat(near): the intents account on the Accounts page
Every open wallet with a phrase now shows its NEAR Intents account. Its
NEP-649 key is derived from the seed on each look and dropped; only the
public side leaves Rust. The account's name is a function of that key,
b<base32 of the handle's first 10 bytes>.blackbeard-observer.near, so the
sponsor (#81) creates it there, a restored phrase finds it again with
nothing stored, and the leading b sorts it onto shard 8, which our nodes
serve. The panel says whether the account exists and whether this
wallet's key is on it, and shows its NEAR for gas and every token it
holds inside Intents (one mt_batch_balance_of over the registry's
Intents ids).

The logic is wallet_core::near::account_summary, written against the
NearRpc port and tested with a fake. The command is a shim, and the app
now holds the shard-routed client from #73 and near.toml, which a file
in the data directory can replace.

Corrected on the way: the asset registry said no post-quantum asset is
on Intents. QTC has been, as nep141:qtc.omft.near, since early October.
Quantus's native QTC now maps to it, the token-list fixture gains 1Click's
QTC entry, and the "unmapped asset" tests use Planck's token instead. The
readme no longer says the swap module waits for Quantus's MPC fork.

Verified in a dev run with the dev-phrase fixture: the panel showed
bffbod6n6ey7jdk4j.blackbeard-observer.near as not created yet.

Refs #74

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01NUx7SPonBnB3ofU4mH41WT
2026-10-09 13:23:13 +03:00

3.7 KiB

blackbeard wallet

A desktop wallet for post-quantum chains, Quantus first. Linux, Windows and macOS; installable on Fedora with dnf.

Shape

The wallet is a Rust cargo workspace with a Tauri shell and a React webview. That split is the security model, not a convenience: every key, signature, decoded transaction and amount lives on the Rust side, and the webview only renders what a Tauri command hands it. Nothing that could serialise a secret is reachable from JavaScript.

crates/
  wallet-entities/   domain types and the IPC wire protocol; exported to TypeScript
  wallet-core/       wallet logic and the ports it is written against
  wallet-data/       adapters behind those ports: keystore, cache, RPC, provider APIs
  wallet-app/        the Tauri binary; commands are one-line shims into core
ui/                  Vite + React + TypeScript webview

The ports in wallet-core are what make "any post-quantum chain" a profile rather than a rewrite:

  • KeyScheme turns a seed and a path into a signer. ML-DSA-65 and ML-DSA-87 now; whatever the next chain uses later.
  • ChainAdapter knows one chain: balances, building and submitting a transaction, watching it. The Substrate adapter is driven by runtime metadata plus a small per-chain profile (ss58 prefix, decimals, signature enum, transaction extensions, signing-context rule, coin type).
  • SwapProvider is a swap venue. NEAR Intents first.
  • NearRpc is NEAR, the chain under the wallet's intents account, routed to a node that tracks the shard of the account each call is about.
  • FiatRamp builds a provider session through a relay on our infrastructure, which holds the provider secrets, and opens it in the system browser.

The wallet is post-quantum only. Classical chains appear only as transit legs of a swap or ramp; the wallet never derives a secp256k1 or ed25519 key. That includes NEAR: the intents account is a NEAR account whose only key is ML-DSA-65 (NEP-645), derived from the wallet's phrase as NEP-649 specifies. NEAR verifies it under the empty FIPS 204 context, where Quantus requires QUANTUS_EXTRINSIC.

Why these choices

Quantus signs extrinsics with ML-DSA, hashes public keys with Poseidon2 for the account id, and shields mining rewards behind a Plonky2 wormhole whose prover is minutes of native CPU. All of that exists as Rust crates and nothing else, so the core is Rust. Tauri is the house desktop convention (~/git/architecture/generic.md §4) and the only shell that packages rpm, deb, msi and dmg with a Rust-owned IPC boundary out of the box.

QTC reaches NEAR as qtc.omft.near through a bridge with a deposit address per account, and its liquidity is in Ref pools rather than with 1Click's solvers. So swaps run through an intents account the wallet holds (#71), using only calls intents.near authorises by the calling account. Its signed intents (execute_intents) accept classical signatures only, and the wallet never makes one. #72 ran the whole route that way on mainnet.

Building

pnpm --dir ui install
cargo tauri dev --config crates/wallet-app/tauri.conf.json   # from crates/wallet-app: cargo tauri dev
cargo test --workspace                                        # also regenerates ui/src/api/generated

The CI gate is cargo fmt --check, cargo clippy -D warnings, cargo test, and the webview's typecheck, lint and build. Run them before claiming done.

Work

Work is filed before it is done. Epics carry the epic label and an external definition of done; their steps carry child, in dependency order, at https://git.lair.cafe/blackbeard/wallet/issues. A commit that finishes a child closes it (Closes #N); when an investigation contradicts an issue, the correction is a comment on the issue, dated, not a surprise in a diff.