docs: Phase 6 wallet core documentation and integration test
Co-Authored-By: Charon <charon@lethean.io>
This commit is contained in:
Claude
parent
11b50d0491
commit
459ff80f1f
3 changed files with 176 additions and 5 deletions
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@ -18,8 +18,9 @@ wire/ Binary serialisation (CryptoNote varint encoding)
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difficulty/ PoW + PoS difficulty adjustment (LWMA variant)
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crypto/ CGo bridge to vendored C++ libcryptonote (keys, signatures, proofs)
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p2p/ CryptoNote P2P command types (handshake, sync, relay)
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rpc/ Daemon JSON-RPC 2.0 client (10 endpoints)
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rpc/ Daemon JSON-RPC 2.0 client (12 endpoints)
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chain/ Chain storage, indexing, and sync client (go-store backed)
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wallet/ Wallet core: key management, scanning, signing, TX construction
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```
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### config/
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@ -139,6 +140,10 @@ rather than `MAP_JON_RPC`.
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- `transactions.go` -- `GetTxDetails`, `GetTransactions` (legacy).
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- `mining.go` -- `SubmitBlock`.
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**Wallet endpoints:**
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- `wallet.go` -- `GetRandomOutputs` (for ring decoy selection via `/getrandom_outs1`)
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and `SendRawTransaction` (for transaction submission via `/sendrawtransaction`).
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**Testing:**
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- Mock HTTP server tests for all endpoints and error paths.
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- Build-tagged integration test (`//go:build integration`) against C++ testnet
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@ -175,6 +180,54 @@ to the C++ daemon's core containers.
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- Build-tagged integration test (`//go:build integration`) syncing first 10
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blocks from C++ testnet daemon on `localhost:46941`.
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### wallet/
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Full send+receive wallet for the Lethean blockchain. Uses interface-driven design
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with four core abstractions so v1 (NLSAG) implementations ship now and v2+
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(Zarcanum/CLSAG) slot in later without changing callers.
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**Core interfaces:**
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- `Scanner` -- detects outputs belonging to a wallet using ECDH derivation.
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`V1Scanner` implements v0/v1 output detection.
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- `Signer` -- produces ring signatures for transaction inputs. `NLSAGSigner`
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wraps the CGo NLSAG ring signature primitives.
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- `Builder` -- constructs signed transactions. `V1Builder` handles v1
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transactions with decoy ring selection and ECDH output derivation.
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- `RingSelector` -- picks decoy outputs for ring signatures.
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`RPCRingSelector` fetches random outputs from the daemon via RPC.
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**Account management:**
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- `account.go` -- `Account` struct with spend and view key pairs. Key
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derivation: `viewSecret = sc_reduce32(Keccak256(spendSecret))`, matching
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the C++ `account_base::generate()` pattern. Three creation methods:
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`GenerateAccount()`, `RestoreFromSeed()`, `RestoreViewOnly()`.
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- `mnemonic.go` -- 25-word CryptoNote mnemonic encoding/decoding using the
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Electrum 1626-word dictionary. CRC32 checksum word.
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- Persistence with Argon2id (time=3, mem=64MB, threads=4) + AES-256-GCM
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encryption via go-store.
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**Transaction extra:**
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- `extra.go` -- minimal parser for three wallet-critical variant tags: tx
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public key (tag 22), unlock time (tag 14), derivation hint (tag 11).
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Unknown tags skipped. Raw bytes preserved for round-tripping.
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**Wallet orchestrator:**
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- `wallet.go` -- `Wallet` struct tying scanning, building, and sending.
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`Sync()` scans from last checkpoint to chain tip, detecting owned outputs
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and spent key images. `Balance()` returns confirmed vs locked amounts.
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`Send()` performs largest-first coin selection, builds, signs, and submits
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transactions via RPC. `Transfers()` lists all tracked outputs.
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**Transfer storage:**
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- `transfer.go` -- `Transfer` struct persisted as JSON in go-store group
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`transfers`, keyed by key image hex. `IsSpendable()` checks spend status,
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coinbase maturity (MinedMoneyUnlockWindow=10), and unlock time.
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**Testing:**
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- Unit tests with go-store `:memory:` for all components.
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- Build-tagged integration test (`//go:build integration`) syncing from
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C++ testnet daemon and verifying balance/transfers.
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---
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## Key Types
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@ -374,11 +374,70 @@ groups mapping to the C++ daemon's core containers.
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**Dependencies added:** `forge.lthn.ai/core/go-store` (local replace).
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## Phase 6 -- Wallet Core (Planned)
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## Phase 6 -- Wallet Core
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Implement `wallet/` with key management, output scanning, transaction
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construction, and balance calculation. Deterministic key derivation from seed
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phrases. Support for all address types.
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Commit range: `5b677d1`..`11b50d0`
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Added `wallet/` package implementing full send+receive wallet functionality
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with interface-driven design for v1/v2+ extensibility.
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### Files added
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| File | Purpose |
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|------|---------|
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| `wallet/wordlist.go` | 1626-word Electrum mnemonic dictionary |
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| `wallet/mnemonic.go` | 25-word seed phrase encode/decode with CRC32 checksum |
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| `wallet/mnemonic_test.go` | Mnemonic tests (9 tests) |
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| `wallet/extra.go` | TX extra parser for tags 22/14/11 |
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| `wallet/extra_test.go` | Extra parsing tests (10 tests) |
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| `wallet/account.go` | Account key management with Argon2id+AES-256-GCM encryption |
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| `wallet/account_test.go` | Account tests (6 tests) |
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| `wallet/transfer.go` | Transfer type and go-store persistence |
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| `wallet/transfer_test.go` | Transfer tests (15 tests) |
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| `wallet/scanner.go` | Scanner interface + V1Scanner (ECDH output detection) |
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| `wallet/scanner_test.go` | Scanner tests (7 tests) |
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| `wallet/signer.go` | Signer interface + NLSAGSigner (CGo ring signatures) |
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| `wallet/signer_test.go` | Signer tests (4 tests) |
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| `wallet/ring.go` | RingSelector interface + RPCRingSelector |
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| `wallet/ring_test.go` | Ring selection tests (3 tests) |
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| `wallet/builder.go` | Builder interface + V1Builder (TX construction) |
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| `wallet/builder_test.go` | Builder tests (3 tests) |
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| `wallet/wallet.go` | Wallet orchestrator (sync, balance, send) |
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| `wallet/wallet_test.go` | Wallet orchestrator tests (2 tests) |
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| `wallet/integration_test.go` | C++ testnet integration test |
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| `rpc/wallet.go` | GetRandomOutputs + SendRawTransaction RPC endpoints |
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| `rpc/wallet_test.go` | RPC wallet endpoint tests (4 tests) |
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### Files modified
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| File | Change |
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|------|--------|
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| `types/types.go` | Added `PublicKey.IsZero()` method |
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| `crypto/bridge.h` | Added `cn_sc_reduce32()` declaration |
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| `crypto/bridge.cpp` | Added `cn_sc_reduce32()` implementation |
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| `crypto/crypto.go` | Added `ScReduce32()` Go wrapper |
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### Key findings
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- **View key derivation requires sc_reduce32.** The raw Keccak-256 of the
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spend secret key must be reduced modulo the Ed25519 group order before it is
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a valid scalar. Added `cn_sc_reduce32` to the CGo bridge.
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- **Interface-driven design.** Four core interfaces (Scanner, Signer, Builder,
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RingSelector) decouple v1 implementations from the orchestrator. Future v2+
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(Zarcanum/CLSAG) implementations slot in by implementing the same interfaces.
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- **go-store GetAll.** Transfer listing uses `store.GetAll(group)` which returns
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all key-value pairs in a group, rather than iterating with individual Gets.
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- **CryptoNote mnemonic encoding.** The 1626-word Electrum dictionary encodes
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4 bytes into 3 words using modular arithmetic: `val = w1 + n*((n-w1+w2)%n) +
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n*n*((n-w2+w3)%n)` where n=1626. The 25th word is a CRC32 checksum.
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### Tests added
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63 unit tests + 1 integration test = 64 total across wallet/ and rpc/wallet.
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All passing with `-race` and `go vet`.
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## Phase 7 -- Consensus Rules (Planned)
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59
wallet/integration_test.go
Normal file
59
wallet/integration_test.go
Normal file
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@ -0,0 +1,59 @@
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// Copyright (c) 2017-2026 Lethean (https://lt.hn)
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//
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// Licensed under the European Union Public Licence (EUPL) version 1.2.
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// You may obtain a copy of the licence at:
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//
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// https://joinup.ec.europa.eu/software/page/eupl/licence-eupl
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//
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// SPDX-License-Identifier: EUPL-1.2
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//go:build integration
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package wallet
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import (
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"testing"
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store "forge.lthn.ai/core/go-store"
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"forge.lthn.ai/core/go-blockchain/chain"
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"forge.lthn.ai/core/go-blockchain/rpc"
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)
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func TestWalletIntegration(t *testing.T) {
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client := rpc.NewClient("http://localhost:46941")
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s, err := store.New(":memory:")
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if err != nil {
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t.Fatal(err)
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}
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defer s.Close()
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c := chain.New(s)
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// Sync chain first.
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if err := c.Sync(client); err != nil {
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t.Fatalf("chain sync: %v", err)
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}
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acc, err := GenerateAccount()
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if err != nil {
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t.Fatal(err)
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}
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w := NewWallet(acc, s, c, client)
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if err := w.Sync(); err != nil {
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t.Fatal(err)
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}
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confirmed, locked, err := w.Balance()
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if err != nil {
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t.Fatal(err)
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}
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t.Logf("Balance: confirmed=%d, locked=%d", confirmed, locked)
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transfers, err := w.Transfers()
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if err != nil {
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t.Fatal(err)
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}
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t.Logf("Transfers: %d", len(transfers))
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}
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