otpus/testing/wc_encrypt.cjs

General purpose cipher for Node & browser

const { encrypt, decrypt, Buffer } = require('otpus');


// async await style
(async function () {
  const plainText = 'this is a secret message.'
  const encPack = await encrypt(plainText, 'passPhrase', 10000)
  const decodeMessage = await decrypt(encPack, 'passPhrase')
  
  console.log('decrypted:', decodeMessage)
  
  const plainData = Buffer.alloc(100 * 2 ** 20)
  const encData = await encrypt(plainData, 'passPhrase', 10000)
  const decData = await decrypt(encData, 'passPhrase')
  
  const some = decData.slice(0, 16)
  console.log('decrypted: some:', some)
  console.log('decrypted: byteLength:', decData.byteLength)
})();



const key = 'key'
const strData = 'hello world'
// promise chaining

// string data will return string data. 
encrypt(strData, key)
  .then(secretPack => {
    console.log('secretPack', secretPack.byteLength)
    return decrypt(secretPack, key)
  })
  .then(data => {
    console.log( 'typeof data:', typeof data)  // string 
    console.log('decoded string message: ', data)
  })


// Uint8Array data will return Uint8Array data.
const binaryData = Uint8Array.from([1, 2, 3, 4])
encrypt(binaryData, key)
  .then(secretPack => {
    console.log('secretPack', secretPack.byteLength)
    return decrypt(secretPack, key)
  })
  .then(data => {
    console.log('instanceof ArrayBuffer:', data instanceof Uint8Array )  //true
    console.log('decoded binary data: ', data)
  })