@moinuddin_shaikh/encryptiondecryption/README.md

A lightweight Node.js library for encrypting and decrypting data using AES-256-CBC with double-seed-based key generation.

# Double Seed Encryption

Double Seed Encryption is a lightweight Node.js library for encrypting and decrypting data using the AES-256-CBC algorithm with a double-seed-based key generation approach. This ensures robust data security, making it suitable for a wide range of applications.

## Features
Double-Seed Security: Combines two seeds to generate a strong encryption key.
Data Type Support: Works with text, strings, and JSON objects.
AES-256-CBC Encryption: Provides a secure and widely-used encryption algorithm.
No External Dependencies: Uses the built-in Node.js crypto module.
Simple API: Easy-to-use functions for encryption and decryption.

## Installation
Install the package using NPM:

## bash

npm install double-seed-encryption

## Usage
Encrypting and Decrypting Text Data

javascript

const { encrypt, decrypt } = require('double-seed-encryption');

// Define seeds
const seed1 = 'myFirstSeed';
const seed2 = 'mySecondSeed';

// Data to encrypt
const textData = 'This is some sensitive information';

// Encrypt data
const encryptedData = encrypt(textData, seed1, seed2);
console.log('Encrypted Data:', encryptedData);

// Decrypt data
const decryptedData = decrypt(encryptedData, seed1, seed2);
console.log('Decrypted Data:', decryptedData);


## Encrypting and Decrypting JSON Data

javascript

const jsonData = { username: 'testUser', permissions: ['read', 'write'] };

// Encrypt JSON object
const encryptedJson = encrypt(jsonData, seed1, seed2);
console.log('Encrypted JSON:', encryptedJson);

// Decrypt JSON object
const decryptedJson = decrypt(encryptedJson, seed1, seed2);
console.log('Decrypted JSON:', decryptedJson);

## API Reference

encrypt(data, seed1, seed2)

data: The data to encrypt (string, text, or JSON object).
seed1: The first seed used for key generation.
seed2: The second seed used for key generation.
Returns: An encrypted string in the format IV:EncryptedData.

decrypt(encryptedData, seed1, seed2)

encryptedData: The encrypted string in the format IV:EncryptedData.
seed1: The first seed used during encryption.
seed2: The second seed used during encryption.
Returns: The original data (string or JSON object).

## Example Use Cases

Secure API payloads with JSON data.
Encrypt configuration files or sensitive application data.
Protect user credentials during transmission.

## Testing
Run tests to ensure everything works correctly:

## bash

npm test

## Repository and Issues

Repository: GitHub
Issues: GitHub Issues

## License

This project is licensed under the MIT License. See the LICENSE file for details.