00 Protocol — Electron Cash Plugins

Electron Cash plugins for the 00 Protocol privacy suite.

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Plugins

stealth/ — BIP352 Stealth Addresses

Receive BCH at one-time unlinkable addresses. No OP_RETURN, no address reuse, outputs are indistinguishable from standard P2PKH.

How it works (BIP352 aggregated ECDH):

Sender:   a_sum      = Σ input_privkeys  mod N
          input_hash = SHA256(smallest_outpoint || A_sum)
          shared     = (a_sum × input_hash) × B_scan
          outputAddr = P2PKH(B_spend + SHA256(sharedX || k)·G)

Receiver: shared     = (b_scan × input_hash) × A_sum   ← same value
          1 ECDH per TX — 5–10× faster than per-input scanning

Features:

• BIP352 aggregated ECDH scanning (1 ECDH/TX)
• Legacy v1 single-input ECDH fallback for old payments
• Indexer-based scanning — no full node required
• Key derivation: m/352'/145'/0'/1'/0 (scan) · m/352'/145'/0'/0'/0 (spend)
• Paycode format: stealth:<scan_pub_33bytes_hex><spend_pub_33bytes_hex>

Files:

stealth/
├── __init__.py          Plugin manifest
├── plugin.py            Electron Cash plugin entry point + JS bridge
├── qt.py                GUI (stealth code, scan, send)
├── cmdline.py           CLI interface
└── scripts/
    ├── stealth.js       BIP352 crypto (pure JS, no external deps)
    └── stealth.test.js  15 unit tests

Run tests:

node stealth/scripts/stealth.test.js
# Expected: 15/15 ✅

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Installation

1. Download or clone this repo
2. In Electron Cash: Tools → Installed Plugins → Add Plugin
3. Select the plugin folder (e.g. stealth/)

Or copy the plugin folder directly into your Electron Cash plugins/ directory.

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License

MIT