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DholeCrypto.js

Support me on Patreon

Travis CI npm version

JavaScript port of Dhole Cryptography (PHP).

Libsodium wrapper for Soatok's JavaScript projects. Released under the very permissive ISC license.

Important: Until version v1.0.0 is released, please don't deploy this library in any production systems. I'll tag v1.0.0 when I'm confident in the correctness and security of the implementation.

Installation

npm install dhole-crypto

Usage

Asymmetric Cryptography

Digital Signatures

const { 
    Asymmetric, 
    AsymmetricSecretKey
} = require('dhole-crypto');

(async function () {
    let wolfSecret = await AsymmetricSecretKey.generate();
    let wolfPublic = wolfSecret.getPublicKey();
    
    let message = "Your $350 awoo fine has been paid UwU";
    
    let signature = await Asymmetric.sign(message, wolfSecret);
    if (!await Asymmetric.verify(message, wolfPublic, signature)) {
        console.log("Invalid signature. Awoo not authorized.");
    }
})();

Authenticated Public-Key Encryption

const { 
    Asymmetric, 
    AsymmetricSecretKey
} = require('dhole-crypto');

(async function () {
    let foxSecret = await AsymmetricSecretKey.generate();
    let foxPublic = foxSecret.getPublicKey();
    
    let wolfSecret = await AsymmetricSecretKey.generate();
    let wolfPublic = wolfSecret.getPublicKey();
    
    let message = "Encrypt me UwU";
    let encrypted = await Asymmetric.encrypt(message, foxPublic, wolfSecret);
    let decrypted = await Asymmetric.decrypt(encrypted, foxSecret, wolfPublic);
    console.log(decrypted.toString()); // "Encrypt me UwU"
})();

Anonymous Public-Key Encryption

const { 
    Asymmetric, 
    AsymmetricSecretKey
} = require('dhole-crypto');

(async function () {
    let foxSecret = await AsymmetricSecretKey.generate();
    let foxPublic = foxSecret.getPublicKey();
    
    let message = "Encrypt me UwU";
    let encrypted = await Asymmetric.seal(message, foxPublic);
    let decrypted = await Asymmetric.unseal(encrypted, foxSecret);
    console.log(decrypted.toString()); // "Encrypt me UwU"
})();

Symmetric Cryptography

Encryption

const {
    Symmetric,
    SymmetricKey
} = require('dhole-crypto');

(async function () {
let symmetricKey = await SymmetricKey.generate();

let message = "Encrypt me UwU";
let encrypted = await Symmetric.encrypt(message, symmetricKey);
let decrypted = await Symmetric.decrypt(encrypted, symmetricKey);
console.log(decrypted); // "Encrypt me UwU"
})();

Encryption with Additional Data

const {
    Symmetric,
    SymmetricKey
} = require('dhole-crypto');

(async function () {
    let symmetricKey = await SymmetricKey.generate();
    
    let message = "Encrypt me UwU";
    let publicData = "OwO? UwU";
    let encrypted = await Symmetric.encryptWithAd(message, symmetricKey, publicData);
    let decrypted = await Symmetric.decryptWithAd(encrypted, symmetricKey, publicData);
    console.log(decrypted); // "Encrypt me UwU"
})();

Unencrypted Message Authentication

const {
    Symmetric,
    SymmetricKey
} = require('dhole-crypto');

(async function () {
    let symmetricKey = await SymmetricKey.generate();
    
    let message = "AWOOOOOOOOOOOO";
    let mac = await Symmetric.auth(message, symmetricKey);
    if (!await Symmetric.verify(message, mac, symmetricKey)) {
        console.log("Unauthorized Awoo. $350 fine incoming");
    }
})();

Password Storage

const {
    Password,
    SymmetricKey
} = require('dhole-crypto');

(async function () {
    let symmetricKey = await SymmetricKey.generate();
    let pwHandler = new Password(symmetricKey);
    
    let password = 'cowwect howse battewy staple UwU';
    let pwhash = await pwHandler.hash(password);
    if (!await pwHandler.verify(password, pwhash)) {
        console.log("access denied");    
    }
})();

Keyring

You can serialize any key by using the Keyring class.

const {
    AsymmetricSecretKey,
    Keyring,
    SymmetricKey
} = require('dhole-crypto');

(async function () {
    let foxSecret = await AsymmetricSecretKey.generate();
    let foxPublic = foxSecret.getPublicKey();
    let symmetric = await SymmetricKey.generate();
    // Load a serializer
    let ring = new Keyring();
    
    // Serialize to string
    let sk = await ring.save(foxSecret);
    let pk = await ring.save(foxPublic);
    let key = await ring.save(symmetric);
    
    // Load from string
    let loadSk = await ring.load(sk);
    let loadPk = await ring.load(pk);
    let loadSym = await ring.load(key);
})();

The Keyring class also supports keywrap. Simply pass a separate SymmetricKey instance to the constructor to get wrapped keys.

const {
    AsymmetricSecretKey,
    Keyring,
    SymmetricKey
} = require('dhole-crypto');

(async function () {
    // Keywrap key...
    let wrap = await SymemtricKey.generate();
    
    let foxSecret = await AsymmetricSecretKey.generate();
    let foxPublic = foxSecret.getPublicKey();
    let symmetric = await SymmetricKey.generate();
    
    // Load a serializer
    let ring = new Keyring(wrap);
    
    // Serialize to string
    let sk = await ring.save(foxSecret);
    let pk = await ring.save(foxPublic);
    let key = await ring.save(symmetric);
    
    // Load from string
    let loadSk = await ring.load(sk);
    let loadPk = await ring.load(pk);
    let loadSym = await ring.load(key);
})();

Support

If you run into any trouble using this library, or something breaks, feel free to file a Github issue.

If you need help with integration, Soatok is available for freelance work.