DanSandClaude Opus 4.8
6d4ed96f6d
Deriving the next HD transparent address read the key count under a read lock, released it, derived the address, and only then took a write lock to append it. Between reading the position and appending, another caller - for instance a scan deriving an address at the same time - could read the same position, derive the same address, and append it too, leaving a duplicate transparent key in the wallet. - The whole read-modify-write now runs under a single write guard, so the position a caller derives from reflects every key already added. The slow seed stretch is computed once before the guard is taken, so holding the lock does not block on it. - As a further guard, derivation skips a position whose address is already present and advances to the next, so no path can produce a duplicate even if positions were ever to overlap. - The starting index is computed exactly as before (it still counts imported keys too), so a wallet with no contention derives the same addresses in the same order. Uncontended derivation produces the same addresses in the same order, verified against the differential harness. The wallet file format is unchanged. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
ObsidianDragon - DragonX Wallet
A lightweight, portable full-node cryptocurrency wallet for DragonX (DRGX), built with Dear ImGui.
Current pre-release: 1.2.0-rc1.
Features
- Full Node Support: Connects to dragonxd for complete blockchain verification
- Shielded Transactions: Full z-address support with encrypted memos
- Address Management: Labels, icons, favorites, hidden addresses, and address-to-address transfers
- Integrated Mining: Solo CPU mining plus pool mining through xmrig, with idle-mining controls
- Explorer Tools: Block/transaction lookup and bootstrap snapshot download
- Market Data: Real-time price charts from CoinGecko
- QR Codes: Generate and display QR codes for receiving addresses
- Multi-language: i18n support for English, German, Spanish, French, Japanese, Korean, Portuguese, Russian, and Chinese
- CJK Fonts: Bundled CJK subset font for translated interfaces
- Lightweight: ~5-10MB binary vs ~50MB+ for Qt version
- Fast Builds: Compiles in seconds, not minutes
Screenshots
Building
Quick Setup
The setup script detects your OS, installs all build dependencies, and validates your environment:
./setup.sh # Install core build deps (interactive)
./setup.sh --check # Just report what's missing
./setup.sh --all # Core + Windows/macOS cross-compile + Sapling params
./setup.sh --win # Also install mingw-w64 + libsodium-win
Manual Prerequisites
Click to expand manual install commands
Linux (Ubuntu/Debian):
sudo apt install build-essential cmake git pkg-config
sudo apt install libgl1-mesa-dev libx11-dev libxcursor-dev libxrandr-dev libxinerama-dev libxi-dev
sudo apt install libsodium-dev libcurl4-openssl-dev
Linux (Arch):
sudo pacman -S base-devel cmake git pkg-config mesa libx11 libxcursor libxrandr libxinerama libxi libsodium curl
macOS:
xcode-select --install
brew install cmake
Windows:
- Visual Studio 2019+ with C++ workload
- CMake 3.20+
Binaries
Download linux and windows binaries of latest releases and place in binary directories:
DragonX daemon (https://git.dragonx.is/DragonX/dragonx):
- prebuilt-binaries/dragonxd-linux/
- prebuilt-binaries/dragonxd-win/
- prebuilt-binaries/dragonxd-mac/
DRG-XMRig fork (https://git.dragonx.is/DragonX/drg-xmrig):
- prebuilt-binaries/drg-xmrig/
Build Steps
### Clone repository (if not already)
git clone https://git.dragonx.is/dragonx/ObsidianDragon.git
cd ObsidianDragon/
Windows Build
./build.sh --win-release
Release Build
./build.sh --linux-release # Linux release + AppImage
./build.sh --win-release # Windows cross-compile
./build.sh --mac-release # macOS .app bundle + DMG
./build.sh --clean --linux-release # Clean + Release
Running
-
Start dragonxd (if not using embedded daemon):
dragonxd -daemon -
Run the wallet:
cd build/bin ./ObsidianDragon
The wallet will automatically connect to the daemon using credentials from ~/.hush/DRAGONX/DRAGONX.conf.
Using Custom Node Binaries
The wallet checks its own directory first when looking for DragonX node binaries. This means you can test new or different branch builds of hush-arrakis-chain/hushd without waiting for a new wallet release:
- Build or download the node binaries you want to test
- Place them in the same directory as the wallet executable (e.g.
build/bin/) - Launch the wallet — it will use the local binaries instead of the bundled ones
Search order:
- Wallet executable directory (highest priority)
- Embedded/extracted daemon (app data directory)
- System-wide locations (
/usr/local/bin,~/dragonx/src, etc.)
This is useful for testing new branches or hotfixes to the node software before they are bundled into a wallet release.
Configuration
Configuration is stored in ~/.hush/DRAGONX/DRAGONX.conf:
rpcuser=your_rpc_user
rpcpassword=your_rpc_password
rpcport=21769
Project Structure
ObsidianDragon/
├── src/
│ ├── main.cpp # Entry point, SDL/ImGui setup
│ ├── app.cpp/h # Main application class
│ ├── data/ # WalletState, address book, exchange info
│ ├── config/ # Settings persistence and committed/generated version.h
│ ├── ui/
│ │ ├── schema/ # TOML UI schema and skin manager
│ │ ├── material/ # Material components, typography, layout
│ │ ├── windows/ # Tabs and dialogs
│ │ └── pages/ # Multi-page screens such as Settings
│ ├── rpc/
│ │ ├── rpc_client.cpp # JSON-RPC client
│ │ └── connection.cpp # Daemon connection
│ ├── resources/ # Embedded resource extraction
│ ├── platform/ # Windows DX11/backdrop helpers
│ ├── util/
│ │ ├── i18n.cpp # Internationalization
│ │ └── ...
│ └── daemon/
│ └── embedded_daemon.cpp
├── res/
│ ├── fonts/ # Ubuntu, icon, and CJK fonts
│ └── lang/ # Translation files
├── libs/
│ └── qrcode/ # QR code generation
├── CMakeLists.txt
├── build.sh # Release/cross-platform build script
└── scripts/create-appimage.sh # AppImage packaging
Dependencies
Fetched or discovered by CMake:
- SDL3 — Cross-platform windowing/input
- nlohmann/json — JSON parsing
- toml++ — TOML parsing (UI schema/themes)
- libcurl — HTTP/HTTPS transport for daemon RPC and network calls (system on Linux/macOS, fetched on Windows)
Bundled in libs/:
- Dear ImGui — Immediate mode GUI
- libsodium — Cryptographic operations (system on Linux or fetched by
scripts/fetch-libsodium.sh) - QR-Code-generator — QR code rendering
- miniz — ZIP compression
- GLAD — OpenGL loader (Linux/macOS)
- stb_image — Image loading
- incbin — Binary resource embedding (Windows builds)
Keyboard Shortcuts
| Shortcut | Action |
|---|---|
| Ctrl+, | Settings |
| F5 | Refresh |
| Alt+F4 | Exit |
Translation
Current language files live in res/lang/ as de, es, fr, ja, ko, pt, ru, and zh JSON files, with built-in English fallbacks.
To add a new language:
- Copy
res/lang/es.jsontores/lang/<code>.json - Translate all strings
- The language will appear in Settings automatically
License
This project is licensed under the GNU General Public License v3 (GPLv3).
Credits
- The Hush Developers
- DragonX Community
- Dear ImGui by Omar Cornut
- SDL by Sam Lantinga
Links
- Website: https://dragonx.is
- Explorer: https://explorer.dragonx.is
- Source: https://git.dragonx.is/dragonx/ObsidianDragon