NativeScript Simple Libsodium

Sodium is a new, easy-to-use software library for encryption, decryption, signatures, password hashing and more. It's cross-compilable & support most of the modern devices. Using this plugin you will be able to use it directly with your NativeScript project.

For iOS I have compiled it directly from source code. For Android I have used Lazysodium native library.

Note: I am not an expert of neigher iOS nor Android. So, please contribute if you think something you can do better :)

Platforms supported

1. iOS
2. Android

Libsodium can be use with other programming languages too. You can get more references from here: https://libsodium.gitbook.io/doc/bindings_for_other_languages

Installation

tns plugin add nativescript-simple-libsodium

Usage

Import

TS/Angular:

import { SimpleLibsodium, AEDMethod, AEDValues, Base64Variant, Keybytes, Noncebytes } from 'nativescript-simple-libsodium';

let simpleLibsodium = new SimpleLibsodium();

JavaScript:

var mSimpleLibsodium = require("nativescript-simple-libsodium");
var simpleLibsodium = new mSimpleLibsodium.SimpleLibsodium();

Please check the demo project for more details example.

Generate Random Data:

simpleLibsodium.generateRandomData();
 // OR
simpleLibsodium.generateKeyWithSuppliedString("Jibon Costa"); // Keep in mind that in order to produce the same key from the same password, the same algorithm, the same salt, and the same values for opslimit and memlimit have to be used. Therefore, these parameters have to be stored for each user.

AED Encryption/Decryption:

let key = this.simpleLibsodium.generateRandomData(AEDValues.XCHACHA20POLY1305_IETF_KEYBYTES);
// or let key = this.simpleLibsodium.generateKeyWithSuppliedString("myKey", AEDValues.XCHACHA20POLY1305_IETF_KEYBYTES);

let enc = this.simpleLibsodium.AEDEncrypt(AEDMethod.XCHACHA20_POLY1305_IETF, "Hello World", key.raw);

console.dir(enc);

let dec = this.simpleLibsodium.AEDDecrypt(AEDMethod.XCHACHA20_POLY1305_IETF, enc.rawCrypted, key.raw, enc.rawNonce);

console.dir(dec);

Secret Box:

let key = this.simpleLibsodium.generateRandomData(Keybytes.SECRETBOX_KEYBYTES);
// or let key = this.simpleLibsodium.generateKeyWithSuppliedString("myKey", Keybytes.SECRETBOX_KEYBYTES);

let enc = this.simpleLibsodium.secretBoxEncrypt("Hello World", key.raw);

console.dir(enc);

let dec = this.simpleLibsodium.secretBoxOpen(enc.rawCrypted, key.raw, enc.rawNonce);

console.dir(dec);

Salsa20:

let key = this.simpleLibsodium.generateRandomData(Keybytes.STREAM_KEYBYTES);
// or let key = this.simpleLibsodium.generateKeyWithSuppliedString("myKey", Keybytes.STREAM_KEYBYTES);

let enc = this.simpleLibsodium.xSalsa20Encrypt("Hello World", key.raw);

console.dir(enc);

let dec = this.simpleLibsodium.xSalsa20Decrypt(enc.rawCrypted, key.raw, enc.rawNonce);

console.dir(dec);

Box Easy:

let bob = this.simpleLibsodium.boxKeyPaired();
let alice = this.simpleLibsodium.boxKeyPaired();

// Bob sending message to Alice. So, here will need Alice's public key & Bob's private/secret key
let enc = this.simpleLibsodium.boxEasy("Hello World", alice.public_key, bob.private_key);

console.dir(enc);

// Alice got the message from Bob. Now Alice need his private key & Bob's public key.
let dec = this.simpleLibsodium.boxOpenEasy(enc.rawCrypted, enc.rawNonce, bob.public_key, alice.private_key);

console.dir(dec);

Password Hash/Verification:

let enc = this.simpleLibsodium.passwordHash("MyPassword");

console.dir(enc);

if (this.simpleLibsodium.passwordHashVerify(enc.plainHash, "MyPassword")) {
  console.log("Password Matched!");
} else {
  console.log("Password invalid!");
}

Crypto Authentication/Verification:

let enc = this.simpleLibsodium.cryptoAuth("Jibon Costa");

console.dir(enc);

if (this.simpleLibsodium.cryptoAuthVerify(enc.rawCrypted, "Jibon Costa", enc.rawKey)) {
  console.log("Matched !")
} else {
  console.log("Didn't match")
}

SHA-256/512 Hash:

let enc = this.simpleLibsodium.SHA2Hash("MyPassword", 512); // or 256
console.dir(enc);

Methods/API

Note: You can add more methods or API from core sodium package to your project easily.

Android:

let simpleLibsodium = new SimpleLibsodium();
let sodium = simpleLibsodium.sodium
// now you can call any method/api from core sodium package.
sodium.crypto_secretbox_keygen();

iOS:

// From iOS you will be able to call the methods directly.
crypto_secretbox_keygen();

For getting typescript typings support you can add following lines in you references.d.ts file:

/// <reference path="./node_modules/nativescript-simple-libsodium/typingz/android.d.ts" />
/// <reference path="./node_modules/nativescript-simple-libsodium/typingz/objc!sodium.d.ts" />

License

Apache License Version 2.0, January 2004