react-native-aes-256 Library

This React Native library provides a secure and convenient way to encrypt and decrypt data using the industry-standard AES-256 algorithm. It seamlessly integrates with your React Native application, allowing you to protect sensitive information on both Android and iOS platforms.

Key Features:

• Robust AES-256 Encryption: Leverages the highly secure AES-256 encryption algorithm for reliable data protection.
• Native Module Integration: Utilizes a native module for enhanced performance and platform-specific security features.
• Simplified API: Offers a user-friendly API with functions for encryption, decryption, and secure key/IV generation.
• Error Handling: Includes error checking for invalid key and IV lengths, preventing potential issues.

Installation

1. Dependency Installation: Install the library using npm or Yarn:

   npm install react-native-aes-256

   yarn add react-native-aes-256

2. Platform-Specific Linking:

   • iOS: Run pod install in your iOS project directory.
   • Android: Rebuild your app after installing the package.

Usage

1. Import the functions:

   import { encrypt, decrypt, generateSecureKey, generateSecureIV } from 'react-native-aes-256';

2. Encryption:

   // Optional you can use any 32 character string
   const secureKey = await generateSecureKey('your_password'); 
   
   // Optional you can use any 16 character string
   const iv = await generateSecureIV('another_password'); 
   
   const encryptedData = await encrypt(secureKey, iv, 'your_data_to_encrypt');

3. Decryption:

   const decryptedData = await decrypt(secureKey, iv, encryptedData);

API Reference

• encrypt(secureKey: string, iv: string, toBeEncrypted: string): Promise<string>: Encrypts a string using the provided key and IV.
• decrypt(secureKey: string, iv: string, toBeDecrypted: string): Promise<string>: Decrypts a string using the provided key and IV.
• generateSecureKey(password: string): Promise<string>: Generates a secure key from a password.
• generateSecureIV(password: string): Promise<string>: Generates a secure initialization vector (IV) from a password.

Error Handling

• The encrypt and decrypt functions reject promises with informative error messages if the key or IV lengths are invalid.
• The IV length should be 16
• The SecrueKey length should be 32

Security Considerations

• Always store keys and IVs securely. Avoid hardcoding them in your code.

Example

A basic example of encrypting and decrypting data can be found in the example folder.

License

This library is licensed under the (MIT License).