I am working on a nextJs(with typescript) project where I'm trying to do some encryption and decryption. I'm using 'crypto' module of nodejs(@types/nodejs). But I'm getting this error when I'm trying to use 'crypto.publicEncrypt' function.

const crypto = require('crypto');
//import * as crypto from "crypto";

export const encryptSensitiveData = ({
  sensitive_data,
  public_key,
}: {
  sensitive_data: string;
  public_key: string;
}) => {
  const buffer = Buffer.from(sensitive_data, "utf8");


  const encrypted = crypto.publicEncrypt(
    {
      key: public_key,
      padding: crypto.constants.RSA_PKCS1_PADDING,
    },
    buffer
  );

  return encrypted.toString("base64");
};

The error says "TypeError: Cannot read properties of null (reading '2')". When I tried to print the public_key and buffer, I saw that they aren't null. I don't know why I'm getting this error.

This is my package.json

{
  "name": "ecommerce",
  "version": "1.0.0",
  "scripts": {
    "dev": "next",
    "build": "next build",
    "build-static-page": "next build && next export",
    "start": "next start -p $PORT",
    "type-check": "tsc",
    "heroku-postbuild": "npm run build"
  },
  "dependencies": {
    "@styled-system/theme-get": "^5.1.2",
    "@types/react-router-dom": "^5.3.1",
    "@types/uniqid": "^5.3.1",
    "axios": "^0.22.0",
    "chart.js": "^2.9.4",
    "clsx": "^1.1.1",
    "date-fns": "^2.21.1",
    "formik": "^2.2.6",
    "fs": "^0.0.1-security",
    "lodash": "^4.17.20",
    "next": "^10.1.3",
    "nprogress": "^0.2.0",
    "pure-react-carousel": "^1.27.6",
    "react": "^16.14.0",
    "react-alert": "^7.0.3",
    "react-chartjs-2": "^2.11.1",
    "react-countdown": "^2.3.2",
    "react-country-dropdown": "^1.0.4",
    "react-country-region-selector": "^3.4.0",
    "react-custom-scrollbars": "^4.2.1",
    "react-dom": "^16.14.0",
    "react-dropzone": "^11.2.4",
    "react-google-recaptcha": "^2.1.0",
    "react-icons": "^4.2.0",
    "react-nextjs-toast": "^1.2.5",
    "react-paginate": "^7.0.0",
    "react-redux": "^7.2.5",
    "react-router-dom": "^5.3.0",
    "react-scroll": "^1.8.2",
    "react-select": "^3.1.1",
    "react-svg": "^11.2.1",
    "react-toast-notifications": "^2.5.1",
    "redux": "^4.1.1",
    "redux-devtools-extension": "^2.13.9",
    "redux-thunk": "^2.3.0",
    "styled-components": "^5.2.1",
    "styled-system": "^5.1.5",
    "uniqid": "^5.4.0",
    "yup": "^0.32.8"
  },
  "devDependencies": {
    "@types/lodash": "^4.14.167",
    "@types/node": "^12.20.37",
    "@types/react": "^16.14.2",
    "@types/react-dom": "^16.9.10",
    "@types/react-redux": "^7.1.18",
    "@types/redux": "^3.6.0",
    "@types/redux-thunk": "^2.1.0",
    "@types/styled-components": "^5.1.7",
    "@types/styled-system": "^5.1.10",
    "babel-plugin-styled-components": "^1.12.0",
    "cross-env": "^7.0.3",
    "react-context-devtool": "^2.0.3",
    "typescript": "^4.2.4"
  },
  "browser": {
    "fs": false,
    "path": false,
    "os": false
  },
  "license": "MIT"
}

CodePudding user response：

The module crypto does not appear in your package.json. You can try installing it, along with the types, which do not appear to be installed either.

CodePudding user response：

  const encrypted = crypto.publicEncrypt({
    passphrase: public_key,
    padding: crypto.constants.RSA_PKCS1_PADDING,
  }, buffer);

change property name key to passphrase https://nodejs.org/api/crypto.html#cryptopublicdecryptkey-buffer