bitcluster/index.js

Simplified Client-Side Encryption

class BitCluster{
  static encrypt(args){
    if(typeof args === "undefined" || typeof args.data === "undefined" || typeof args.key === "undefined"){
      return("Password/Data cannot be null")
    }else{
      var Crypto = require('crypto-js')

      let key = args.key
      let data = args.data
      let k1 = String(Crypto.SHA3(key+data))
      let hash = String(Crypto.SHA3(Crypto.SHA256(data)))
      let h1 = String(Crypto.AES.encrypt(k1, key))
      let h2 = String(Crypto.AES.encrypt(data, k1))
      let obj = {
        h2: h2,
        h1: h1,
        hash: hash
      }
      return obj
    }
  };
  static decrypt(args){
    if(typeof args === "undefined" || typeof args.h2 === "undefined" || typeof args.h1 === "undefined" || typeof args.pass === "undefined" || typeof args.hash === "undefined"){
      return("Password/Data cannot be null")
    }else{
      var Crypto = require('crypto-js')

      let h2   = args.h2
      let h1  = args.h1
      let pass     = args.pass
      let hash     = args.hash
      var k1_bytes = Crypto.AES.decrypt(h1, pass);
      let k1       = k1_bytes.toString(Crypto.enc.Utf8);
      let d1_bytes = Crypto.AES.decrypt(h2, k1)
      let d1       = d1_bytes.toString(Crypto.enc.Utf8);
      let comp_sha = String(Crypto.SHA3(Crypto.SHA256(d1)))

      if(hash === comp_sha){
        return {data: d1, status: "OK"}
      }else{
        return {data: null, status: "Something isn't right. Check your password, h1, h2, and hash and try again."}
      }
    }
  }
  static qr_encrypt(data){
    if(typeof data === "undefined" || data === ''){
      return("Data cannot be null")
    }

    var n = require('nanoid')
    var QRCode = require('qrcode')
    var key = n(256)

    var obj = {
      data: data,
      key: key
    }

    var res = this.encrypt(obj)
    res.qr = QRCode.toDataURL(key)
    return res
  }
}

module.exports = BitCluster