Can I use the SHA-224 encryption in Dialogflow Node.js?

Question

I am trying to encrypt user input and compare with the encrypted string in database in dialogflow.

How can I add in the crypto package into package.json and get the SHA-224 to work in the index.js? I have tried my code but nothing happened.

Python code to encrypt data for comparison later:

import hashlib
import pandas as pd
strings = []

data = pd.read_csv("DBDATA.csv")
df = data[['ID']]

for index, row in df.iterrows():
    b = row["ID"].encode('utf-8')
    print(b)
    hashed = hashlib.sha224(b).hexdigest()
    strings.append(hashed)
data["NUMBER"] = strings

Javascript code to encrypt user input:

  const crypto = require('crypto');

  var hash = crypto.createHash('sha224');
  var string = agent.parameters.adminnumber;
  var hashedString = hash.update(string, 'utf-8');
  var gen_hash= hashedString.digest('hex');

Package.json

"dependencies": {
    "crypto": "4.0.0"
  }

Dialogflow Nodejs

Answer 1

The code work well for me (using a hardcoded "string" var). Maybe you don't see anything because you don't log the result.

Remember install the crypto package using npm install crypto --save command or just npm install if dependency already exists into package.json file.

const crypto = require('crypto');

const hash = crypto.createHash('sha224');
const string = "Test SHA-224 crypto.";
const hashedString = hash.update(string, 'utf-8');
const gen_hash= hashedString.digest('hex');

console.log(gen_hash); // Trace the result

Note: var keyword makes the baby jesuschrist cry