Wasm Key Manager

Rust/Wasm key management implementation that uses Ed25519 signing algorithm and Argon2 key derivation. The private key remains in Wasm memory with no direct access for Javascript.

Release

Release source - https://github.com/Holo-Host/chaperone-key-manager/

API Reference

API Reference

Usage

const { KeyManager, deriveSeedFrom } = require('@holo-host/wasm-key-manager');
const crypto = require('crypto');

const seed = crypto.randomBytes( 32 );
const hha_id = new Uint8Array([
    66, 123, 133, 136, 133,   6, 247, 116,
     4,  59,  43, 206, 131, 168, 123,  44,
    54,  52,   3,  53, 134,  75, 137,  43,
    63,  26, 216, 191,  67, 117,  38, 142
]);

// or derive seed
const seed = deriveSeedFrom( hha_id, "[email protected]", "Passw0rd!");

const message = "Hello World";
const keys = new KeyManager( seed );

const signature = keys.sign( message );
const verified = keys.verify( message, signature );

const public_key = keys.publicKey();
const verified = KeyManager.verifyWithPublicKey( message, signature, public_key );

Bundle for web

bootstrap.js

import("./index.js")
    .then(m => Object.assign(window, m))
    .catch(e => console.error("Error importing `index.js`:", e));

index.js

const { KeyManager, deriveSeedFrom } = require("@holo-host/wasm-key-manager");

module.exports = {
    KeyManager,
    deriveSeedFrom,
};

webpack.config.js

module.exports = {
    target: "web",

    entry: "./bootstrap.js",

    // Assign 'module.exports' to the window variable
    output: {
        libraryTarget: "window",
    },
};

Contributing

• master/../CONTRIBUTING.md
• ./CONTRIBUTING.md