React Native AES

AES encryption/decryption for react-native

Installation

npm install @trackforce/react-native-aes-crypto

or

yarn add @trackforce/react-native-aes-crypto

Linking Automatically

react-native link

Linking Manually

iOS

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

(Android)

...
include ':@trackforce/react-native-aes-crypto'
project(':@trackforce/react-native-aes-crypto').projectDir = new File(rootProject.projectDir, '../node_modules/@trackforce/react-native-aes-crypto/android')

• In android/app/build.gradle

...
dependencies {
    ...
    compile project(':@trackforce/react-native-aes-crypto')
}

• register module (in MainApplication.java)

......
import com.trackforce.aes.RCTAesPackage;

......

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

Usage

Example

import AES from '@trackforce/react-native-aes-crypto';

function generateKey(password, salt) {
    return AES.pbkdf2(password, salt);
}

async function encrypt(text, key) {
    const iv = 'base 64 random 16 bytes string';
    try {
        const ciphertext = await AES.encrypt(text, key, iv);
        return { ciphertext, iv };
    } catch (error) {
        throw error;
    }
}

function decrypt(ciphertext, key, iv) {
    return AES.decrypt(ciphertext, key, iv);
}

function hmac(ciphertext, key) {
    return AES.hmac256(ciphertext, key);
}

(async () => {
    try {
        const generatedKey = await generateKey('password', 'salt');
        console.log(`generatedKey: ${generatedKey}`);

        const { ciphertext, iv } = await encrypt('Hello, world!', generatedKey);
        console.log(`ciphertext: ${ciphertext}, iv: ${iv}`);

        const decryptedText = await decrypt(ciphertext, generatedKey, iv);
        console.log(`decrypted: ${decryptedText}`);

        const hash = await hmac(ciphertext, generatedKey);
        console.log(`hash: ${hash}`);
    } catch (error) {
        throw error;
    }
})();

methods

• encrypt(text, key, iv)
• decrypt(base64, key, iv)
• pbkdf2(text, salt)
• hmac256(cipher, key)
• sha1(text)
• sha256(text)
• sha512(text)