const { createCipheriv, createDecipheriv, randomBytes } = require('crypto')
const cleartext = '+33983450176'
const algorithm = 'aes-256-cbc'
const key = process.env.PII_KEY || 'ccb0d435a362061c313fd4ffd5610d68'
// 1. Cipher!
const iv = randomBytes(16)
const cipher = createCipheriv(algorithm, key, iv)
const obscured = iv.toString('hex') + ':' + cipher.update(cleartext, 'utf8', 'hex') + cipher.final('hex')
console.log(cleartext, 'becomes', obscured)
// 2. Decipher!
const parts = obscured.split(':')
const iv2 = Buffer.alloc(16, parts[0], 'hex')
const obscured2 = Buffer.alloc(parts[1].length / 2, parts[1], 'hex')
const decipher = createDecipheriv(algorithm, key, iv2)
const cleartext2 = decipher.update(obscured2) + decipher.final()
console.log(obscured, 'becomes', cleartext2)
Created from: https://npm.runkit.com/lodash