libertaria-stack/core/l1-identity

L1 Identity Layer

Layer: L1 (Identity)
Purpose: Decentralized identity, cryptography, trust graphs, vectors
RFCs: RFC-0105 (Sovereign Time), RFC-0120 (QVL)

---

Overview

The L1 Identity layer provides cryptographic identity primitives, trust relationship management, and the QuasarVector Lattice (QVL) for event-driven consensus.

Components

DID (Decentralized Identifiers) - did.zig

Spec: did:libertaria:... format

DID generation and parsing:

• Blake3-based DID derivation from public keys
• 24-byte routing hints (192-bit)
• Base58 encoding for human readability

SoulKey (Identity Keys) - soulkey.zig

Crypto: Ed25519

Core identity keypair management:

• Key generation, storage, derivation
• Signing and verification
• Seed phrase support

QuasarVector - vector.zig

RFC: RFC-0120

Event lattice vectors:

• Ed25519 signatures
• SovereignTimestamp (u128 attoseconds)
• Proof-of-Path integration
• Vector validation pipeline

TrustGraph - trust_graph.zig

Pattern: Web-of-trust

Decentralized trust relationships:

• Trust grant/revoke operations
• Path finding (Dijkstra)
• Trust weight calculation
• Graph serialization

ProofOfPath - proof_of_path.zig

RFC: RFC-0120

Trust path verification:

• Multi-hop signature chains
• Path expiration checking
• Hop limit enforcement

Entropy - entropy.zig

RFC: RFC-0100

Entropy stamps for Sybil resistance:

• Blake3-based proof-of-work
• Difficulty calibration (0-255)
• Verification logic

Crypto - crypto.zig

Cryptographic primitives wrapper:

• Ed25519 (signing)
• X25519 (key exchange)
• Blake3 (hashing)
• XChaCha20-Poly1305 (encryption)

Argon2 - argon2.zig

FFI: C library wrapper

Password hashing:

• Argon2id for SoulKey seed derivation
• Memory-hard KDF

PQXDH - pqxdh.zig

Protocol: Post-Quantum Extended Diffie-Hellman

Future-proof key exchange:

• Hybrid classical + PQ security
• X25519 + Kyber integration (planned)

PreKey - prekey.zig

Protocol: X3DH prekey bundles

Asynchronous messaging:

• Prekey bundle generation
• Signal-style forward secrecy

---

Usage

const l1 = @import("l1_identity.zig");

// Generate identity
const soulkey = try l1.soulkey.SoulKey.generate(allocator);
const did = try l1.did.fromPublicKey(&soulkey.public_key);

// Create vector
var vector = try l1.vector.QuasarVector.create(allocator, soulkey, payload_data);
defer vector.deinit(allocator);

// Sign and verify
try vector.sign(soulkey);
const valid = vector.verifySignature();

---

Testing

Run L1 tests:

zig build test
# Or individual modules:
zig test l1-identity/vector.zig
zig test l1-identity/trust_graph.zig

---

Dependencies

• std.crypto - Ed25519, X25519, Blake3
• vendor/argon2/ - Argon2 C library
• L0 Time (time.zig) - SovereignTimestamp