Siavash Sameni
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37a4c3c54f
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Seed encryption at rest (Argon2id + ChaCha20-Poly1305) + HW wallet plan
keystore.rs:
- Passphrase prompted on init (hidden input, echo disabled)
- Empty passphrase = plaintext (for testing/scripting)
- Encrypted format: MAGIC("WZS1") + salt(16) + nonce(12) + ciphertext(48)
- Argon2id for key derivation (memory-hard, GPU-resistant)
- ChaCha20-Poly1305 AEAD for encryption
- Backwards compatible: auto-detects plaintext vs encrypted on load
- Keys zeroized after use
DESIGN.md:
- Added hardware wallet section (Ledger/Trezor via USB/BT HID)
- Ed25519 signing delegated to device, seed never exported
- BIP44 derivation path m/44'/1234'/0'
- Phase 2 feature, protocol unchanged
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
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2026-03-27 07:45:55 +04:00 |
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Siavash Sameni
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82f5061aa1
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Wire E2E messaging: send, recv, session persistence, auto-registration
CLI client (warzone):
- `warzone init` now generates pre-key bundle (1 SPK + 10 OTPKs),
stores secrets in local sled DB, saves bundle for server registration
- `warzone register -s <url>` registers bundle with server
- `warzone send <fp> <msg> -s <url>` full E2E flow:
- Auto-registers bundle on first use
- Fetches recipient's pre-key bundle
- Performs X3DH key exchange (first message) or uses existing session
- Encrypts with Double Ratchet
- Sends WireMessage envelope to server
- `warzone recv -s <url>` polls and decrypts:
- Handles KeyExchange messages (X3DH respond + ratchet init as Bob)
- Handles Message (decrypt with existing ratchet session)
- Saves session state after each decrypt
Wire protocol (WireMessage enum):
- KeyExchange variant: sender identity, ephemeral key, OTPK id, ratchet msg
- Message variant: sender fingerprint + ratchet message
Session persistence:
- Ratchet state serialized with bincode, stored in sled (~/.warzone/db)
- Pre-key secrets stored in sled, OTPKs consumed on use
- Sessions keyed by peer fingerprint
Networking (net.rs):
- register_bundle, fetch_bundle, send_message, poll_messages
- JSON API over HTTP, bundles serialized with bincode + base64
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
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2026-03-26 21:40:21 +04:00 |
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Siavash Sameni
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651396fa13
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Scaffold Rust workspace: warzone-protocol, server, client, mule
4 crates, all compile. 16/17 tests pass.
warzone-protocol (core crypto):
- Seed-based identity (Ed25519 + X25519 from 32-byte seed via HKDF)
- BIP39 mnemonic encode/decode (24 words)
- Fingerprint type (SHA-256 truncated, displayed as xxxx:xxxx:xxxx:xxxx)
- ChaCha20-Poly1305 AEAD encrypt/decrypt with random nonce
- HKDF-SHA256 key derivation
- Pre-key bundle generation with Ed25519 signatures
- X3DH key exchange (simplified, needs X25519 identity key in bundle)
- Double Ratchet: full implementation with DH ratchet, chain ratchet,
out-of-order message handling via skipped keys cache
- Message format (WarzoneMessage envelope + RatchetHeader)
- Session type with ratchet state
- Storage trait definitions (PreKeyStore, SessionStore, MessageQueue)
warzone-server (axum):
- sled database (keys, messages, one-time pre-keys)
- Routes: /v1/health, /v1/keys/register, /v1/keys/{fp},
/v1/messages/send, /v1/messages/poll/{fp}, /v1/messages/{id}/ack
warzone-client (CLI):
- `warzone init` — generate seed, show mnemonic, save to ~/.warzone/
- `warzone recover <words>` — restore from mnemonic
- `warzone info` — show fingerprint and keys
- Seed storage at ~/.warzone/identity.seed (600 perms)
- Stubs for send, recv, chat commands
warzone-mule: Phase 4 placeholder
Known issue: X3DH test fails (initiate/respond use different DH ops
due to missing X25519 identity key in bundle). Fix in next step.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
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2026-03-26 21:27:48 +04:00 |
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