Using Crypto, the Node js module to encrypt passwords

cipher.md

How to use the Crypto module from Node js

Cipher

This is a simple example, please consider using createHash instead for passwords in production

const crypto = require('crypto');
const passwordToEncrypt = "AP34IOUR+&"
const salt = "My Awesome Salt"

function encryptData(salt, passwordToEncrypt){
  const cipher = crypto.createCipher('aes256', salt);
  let encrypted = cipher.update(passwordToEncrypt, 'utf8', 'hex');
  encrypted += cipher.final('hex');
  return encrypted;
}


function decryptData(salt, encryptedPassword){
  const decipher = crypto.createDecipher('aes256', salt);
  let decrypted = decipher.update(encryptedPassword, 'hex', 'utf8');
  decrypted += decipher.final('utf8');
  return decrypted
}

const encryptedData = encryptData(salt, passwordToEncrypt)
console.log('Encrypted Data :', encryptedData)

const decryptedData = decryptData(salt, encryptedPassword)
console.log('Decrypted Data :', decryptedData)

createHash.md

How to use the Crypto module from Node js

createHash

This is a simple example using createHash

// TODO

full-cipher-exemple.js

const crypto = require('crypto');

const salt = 'aZerTy!Osef'
const password = 'myAwesomePassword'

/**
 * Encrypt Password with aes256 and salt
 * @param  {String} passwordToEncrypt Le password à encrypter
 * @return {String}                   Le password encrypté
 */
function encryptPassword(passwordToEncrypt) {
    console.log('** Encrypt with aes256')
    const cipher = crypto.createCipher('aes256', salt);
    let encrypted = cipher.update(passwordToEncrypt, 'utf8', 'hex');
    console.log('** Encrypt with aes256', encrypted)
    encrypted += cipher.final('hex');
    console.log('** Final hex', encrypted)
    return encrypted;
}

/**
 * Decrypt Password with aes256 and the salt
 * @param  {String} encryptedPassword Le password à décrypter
 * @return {String}                   Le password décrypté
 */
function decryptPassword(encryptedPassword) {
    console.log('** Decrypt with aes256')
    const decipher = crypto.createDecipher('aes256', salt);
    let decrypted = decipher.update(encryptedPassword, 'hex', 'utf8');
    console.log('** Decrypt with aes256', decrypted)
    decrypted += decipher.final('utf8');
    console.log('** Final utf8', decrypted)
    return decrypted;
}

console.log('\n Original  password :', password)
const encrypted = encryptPassword(password)
console.log('\n Password encrypted :', encrypted)
const decrypted = decryptPassword(encrypted)
console.log('\n Password decrypted :', decrypted)