@moinuddin_shaikh/encryptiondecryption/index.test.js

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

const { encrypt, decrypt } = require('./index'); // Adjust path if needed

describe('Double Seed Encryption-Decryption Tests', () => {
  const seed1 = 'firstSeed';
  const seed2 = 'secondSeed';
  const data = 'Test data';

  test('Encryption and Decryption should work correctly', () => {
    const encryptedData = encrypt(data, seed1, seed2);
    const decryptedData = decrypt(encryptedData, seed1, seed2);
    expect(decryptedData).toBe(data);
  });

  test('Decryption should fail with wrong seeds', () => {
    const encryptedData = encrypt(data, seed1, seed2);
    expect(() => decrypt(encryptedData, 'wrongSeed1', seed2)).toThrow();
    expect(() => decrypt(encryptedData, seed1, 'wrongSeed2')).toThrow();
  });

  test('Encryption should produce different results each time', () => {
    const encryptedData1 = encrypt(data, seed1, seed2);
    const encryptedData2 = encrypt(data, seed1, seed2);
    expect(encryptedData1).not.toBe(encryptedData2); // IV makes the output unique
  });
  test('Should handle JSON data correctly', () => {
    const data = { username: 'testuser', permissions: ['read', 'write'] };
    const encrypted = encrypt(data, seed1, seed2);
    console.log(encrypted);
    const decrypted = decrypt(encrypted, seed1, seed2);
    console.log(decrypted);
    expect(decrypted).toEqual(data);
  });
});