npm package discovery and stats viewer.

Discover Tips

  • General search

    [free text search, go nuts!]

  • Package details

    pkg:[package-name]

  • User packages

    @[username]

Sponsor

Optimize Toolset

I’ve always been into building performant and accessible sites, but lately I’ve been taking it extremely seriously. So much so that I’ve been building a tool to help me optimize and monitor the sites that I build to make sure that I’m making an attempt to offer the best experience to those who visit them. If you’re into performant, accessible and SEO friendly sites, you might like it too! You can check it out at Optimize Toolset.

About

Hi, 👋, I’m Ryan Hefner  and I built this site for me, and you! The goal of this site was to provide an easy way for me to check the stats on my npm packages, both for prioritizing issues and updates, and to give me a little kick in the pants to keep up on stuff.

As I was building it, I realized that I was actually using the tool to build the tool, and figured I might as well put this out there and hopefully others will find it to be a fast and useful way to search and browse npm packages as I have.

If you’re interested in other things I’m working on, follow me on Twitter or check out the open source projects I’ve been publishing on GitHub.

I am also working on a Twitter bot for this site to tweet the most popular, newest, random packages from npm. Please follow that account now and it will start sending out packages soon–ish.

Open Software & Tools

This site wouldn’t be possible without the immense generosity and tireless efforts from the people who make contributions to the world and share their work via open source initiatives. Thank you 🙏

© 2024 – Pkg Stats / Ryan Hefner

react-native-simple-crypto

v0.2.15

Published

A simpler React-Native crypto library

Downloads

12,652

Readme

React Native Simple Crypto npm version

A simpler React-Native crypto library

Features

  • AES-128-CBC
  • HMAC-SHA256
  • SHA1
  • SHA256
  • SHA512
  • PBKDF2
  • RSA

Installation

npm install react-native-simple-crypto

# OR

yarn add react-native-simple-crypto

Linking Automatically

react-native link react-native-simple-crypto

Linking Manually

iOS

  • See Linking Libraries OR
  • Drag RCTCrypto.xcodeproj to your project on Xcode.
  • Click on your main project file (the one that represents the .xcodeproj) select Build Phases and drag libRCTCrypto.a from the Products folder inside the RCTCrypto.xcodeproj.

(Android)

  • In android/settings.gradle
...
include ':react-native-simple-crypto'
project(':react-native-simple-crypto').projectDir = new File(rootProject.projectDir, '../node_modules/react-native-simple-crypto/android')
  • In android/app/build.gradle
...
dependencies {
    ...
    compile project(':react-native-simple-crypto')
}
  • register module (in MainApplication.java)
......
import com.pedrouid.crypto.RNSCCryptoPackage;

......

@Override
protected List<ReactPackage> getPackages() {
   ......
   new RNSCCryptoPackage(),
   ......
}

API

All methods are asynchronous and return promises (except for convert utils)

- AES
  - encrypt(text: ArrayBuffer, key: ArrayBuffer, iv: ArrayBuffer)
  - decrypt(cipherText: ArrayBuffer, key: ArrayBuffer, iv: ArrayBuffer)
- SHA
  - sha1(text: string)
  - sha1(text: ArrayBuffer)
  - sha256(text: string)
  - sha256(text: ArrayBuffer)
  - sha512(text: string)
  - sha512(text: ArrayBuffer)
- HMAC
  - hmac256(text: ArrayBuffer, key: ArrayBuffer)
- PBKDF2
  - hash(password: string, salt: ArrayBuffer, iterations: number, keyLength: number, hash: string)
- RSA
  - generateKeys(keySize: number)
  - encrypt(data: string, key: string)
  - sign(data: string, key: string, hash: string)
  - verify(data: string, secretToVerify: string, hash: string)
- utils
  - randomBytes(bytes: number)
  - convertArrayBufferToUtf8(input: ArrayBuffer)
  - convertUtf8ToArrayBuffer(input: string)
  - convertArrayBufferToBase64(input: ArrayBuffer)
  - convertBase64ToArrayBuffer(input: string)
  - convertArrayBufferToHex(input: ArrayBuffer)
  - convertHexToArrayBuffer(input: string)

NOTE: Supported hashing algorithms for RSA and PBKDF2 are:

"Raw" (RSA-only) | "SHA1" | "SHA224" | "SHA256" | "SHA384" | "SHA512"

Example

Testing repository.

import RNSimpleCrypto from "react-native-simple-crypto";

const toHex = RNSimpleCrypto.utils.convertArrayBufferToHex
const toUtf8 = RNSimpleCrypto.utils.convertArrayBufferToUtf8

// -- AES ------------------------------------------------------------- //
const message = "data to encrypt";
const messageArrayBuffer = RNSimpleCrypto.utils.convertUtf8ToArrayBuffer(
  message
);

const keyArrayBuffer = await RNSimpleCrypto.utils.randomBytes(32);
console.log("randomBytes key", toHex(keyArrayBuffer));

const ivArrayBuffer = await RNSimpleCrypto.utils.randomBytes(16);
console.log("randomBytes iv", toHex(ivArrayBuffer));

const cipherTextArrayBuffer = await RNSimpleCrypto.AES.encrypt(
  messageArrayBuffer,
  keyArrayBuffer,
  ivArrayBuffer
);
console.log("AES encrypt", toHex(cipherTextArrayBuffer))

const decryptedArrayBuffer = await RNSimpleCrypto.AES.decrypt(
  cipherTextArrayBuffer,
  keyArrayBuffer,
  ivArrayBuffer
);
console.log("AES decrypt", toUtf8(decryptedArrayBuffer));
if (toUtf8(decryptedArrayBuffer) !== message) {
  console.error('AES decrypt returned unexpected results')
}

// -- HMAC ------------------------------------------------------------ //

const keyHmac = await RNSimpleCrypto.utils.randomBytes(32);
const signatureArrayBuffer = await RNSimpleCrypto.HMAC.hmac256(messageArrayBuffer, keyHmac);
console.log("HMAC signature", toHex(signatureArrayBuffer));

// -- SHA ------------------------------------------------------------- //

const sha1Hash = await RNSimpleCrypto.SHA.sha1("test");
console.log("SHA1 hash", sha1Hash);

const sha256Hash = await RNSimpleCrypto.SHA.sha256("test");
console.log("SHA256 hash", sha256Hash);

const sha512Hash = await RNSimpleCrypto.SHA.sha512("test");
console.log("SHA512 hash", sha512Hash);

const arrayBufferToHash = RNSimpleCrypto.utils.convertUtf8ToArrayBuffer("test");
const sha1ArrayBuffer = await RNSimpleCrypto.SHA.sha1(arrayBufferToHash);
console.log('SHA1 hash bytes', toHex(sha1ArrayBuffer));
if (toHex(sha1ArrayBuffer) !== sha1Hash) {
  console.error('SHA1 result mismatch!')
}

const sha256ArrayBuffer = await RNSimpleCrypto.SHA.sha256(arrayBufferToHash);
console.log('SHA256 hash bytes', toHex(sha256ArrayBuffer));
if (toHex(sha256ArrayBuffer) !== sha256Hash) {
  console.error('SHA256 result mismatch!')
}

const sha512ArrayBuffer = await RNSimpleCrypto.SHA.sha512(arrayBufferToHash);
console.log('SHA512 hash bytes', toHex(sha512ArrayBuffer));
if (toHex(sha512ArrayBuffer) !== sha512Hash) {
  console.error('SHA512 result mismatch!')
}

// -- PBKDF2 ---------------------------------------------------------- //

const password = "secret password";
const salt = "my-salt"
const iterations = 4096;
const keyInBytes = 32;
const hash = "SHA1";
const passwordKey = await RNSimpleCrypto.PBKDF2.hash(
  password,
  salt,
  iterations,
  keyInBytes,
  hash
);
console.log("PBKDF2 passwordKey", toHex(passwordKey));

const passwordKeyArrayBuffer = await RNSimpleCrypto.PBKDF2.hash(
  RNSimpleCrypto.utils.convertUtf8ToArrayBuffer(password),
  RNSimpleCrypto.utils.convertUtf8ToArrayBuffer(salt),
  iterations,
  keyInBytes,
  hash
);
console.log("PBKDF2 passwordKey bytes", toHex(passwordKeyArrayBuffer));

if (toHex(passwordKeyArrayBuffer) !== toHex(passwordKey)) {
  console.error('PBKDF2 result mismatch!')
}

const password2 = messageArrayBuffer;
const salt2 = await RNSimpleCrypto.utils.randomBytes(8);
const iterations2 = 10000;
const keyInBytes2 = 32;
const hash2 = "SHA256";

const passwordKey2 = await RNSimpleCrypto.PBKDF2.hash(
  password2,
  salt2,
  iterations2,
  keyInBytes2,
  hash2
);
console.log("PBKDF2 passwordKey2", toHex(passwordKey2));


// -- RSA ------------------------------------------------------------ //

const rsaKeys = await RNSimpleCrypto.RSA.generateKeys(1024);
console.log("RSA1024 private key", rsaKeys.private);
console.log("RSA1024 public key", rsaKeys.public);

const rsaEncryptedMessage = await RNSimpleCrypto.RSA.encrypt(
  message,
  rsaKeys.public
);
console.log("rsa Encrypt:", rsaEncryptedMessage);

const rsaSignature = await RNSimpleCrypto.RSA.sign(
  rsaEncryptedMessage,
  rsaKeys.private,
  "SHA256"
);
console.log("rsa Signature:", rsaSignature);

const validSignature = await RNSimpleCrypto.RSA.verify(
  rsaSignature,
  rsaEncryptedMessage,
  rsaKeys.public,
  "SHA256"
);
console.log("rsa signature verified:", validSignature);

const rsaDecryptedMessage = await RNSimpleCrypto.RSA.decrypt(
  rsaEncryptedMessage,
  rsaKeys.private
);
console.log("rsa Decrypt:", rsaDecryptedMessage);
if (rsaDecryptedMessage !== message ) {
  console.error('RSA decrypt returned unexpected result')
}

Forked Libraries