@transmissionbot/core-wasm

WASM bindings for TransmissionBot's core crypto library. Provides key generation, PQXDH session establishment, and safety number computation for Node.js and browser environments.

Installation

npm install @transmissionbot/core-wasm

Usage

const wasm = require('@transmissionbot/core-wasm');

// Generate Ed25519 identity signing key pair
const signing = JSON.parse(wasm.generate_identity_signing_key());
// { public_key: "<base64url>", secret_key: "<base64url>" }

// Generate X25519 identity DH key pair
const dh = JSON.parse(wasm.generate_identity_dh_key());
// { public_key: "<base64url>", secret_key: "<base64url>" }

// Generate a signed pre-key
const spk = JSON.parse(
  wasm.generate_signed_prekey(Buffer.from(signing.secret_key, 'base64url'), 1)
);
// { key_id: 1, public_key: "<base64url>", signature: "<base64url>" }

// Generate one-time pre-keys
const otpKeys = JSON.parse(wasm.generate_one_time_prekeys(1, 10));
// [{ key_id: 1, public_key: "<base64url>" }, ...]

// Generate a PQ (ML-KEM-768) pre-key
const pqKey = JSON.parse(
  wasm.generate_pq_prekey(Buffer.from(signing.secret_key, 'base64url'), 1)
);
// { key_id: 1, public_key: "<base64url>", signature: "<base64url>" }

// Compute safety number for two agents
const safetyNumber = wasm.compute_safety_number(
  keyA, idA, // Uint8Array
  keyB, idB  // Uint8Array
);
// "12345 67890 12345 67890 12345 67890 12345 67890 12345 67890 12345 67890"

Building from source

wasm-pack build crates/transmissionbot-core \
  --target nodejs \
  --out-dir ../../sdks/wasm \
  --features wasm \
  --no-default-features

Size

~176KB (uncompressed WASM binary).