NodeCrypt

A simple nodejs library that makes life easier when you want to encrypt and decrypt string to multiple encodings.

This library was written in pure NodeJS with TypeScript.

How to use

• With IV

  Create a new instance of NodeCryptIV

  const NodeCryptIV = require('easy-nodecrypt').NodeCryptIV;

  • Random mode

    const nodeCryptIV = new NodeCryptIV({ secret: 'mysecret' });
    const encrypted = nodeCryptIV.encrypt('Pika Pika!').toBase64();
    console.log(encrypted); // emlSWvnh7cUwkEvWWeZafcR3Kp8YJafoRoJvJBQ_t38
    
    const decrypted = nodeCryptIV.decrypt(encrypted);
    console.log(decrypted); // Pika Pika!

  • No random mode

    You can give the IV with an environment variable (NODECRYPT_IV) or directly in the NodeCryptIV instance. The function use first the IV in parameter and if it's not exist, it use the environment variable.

    The IV must have a length of 16 characters.

    const nodeCryptIV = new NodeCryptIV({ secret: 'mysecret', iv: 'totototototototo' });
    const encrypted = nodeCryptIV.encrypt('Pika Pika!').toBase64();
    console.log(encrypted); // dG90b3RvdG90b3RvdG90b8bCKJ7SMuOaSWvijqvujXM
    
    const decrypted = nodeCryptIV.decrypt(encrypted);
    console.log(decrypted); // Pika Pika!

• Without IV

  Create a new instance of NodeCrypt

  const NodeCrypt = require('easy-nodecrypt').NodeCrypt;

  const nodeCrypt = new NodeCrypt('mysecret');
  const encrypted = nodeCrypt.encrypt('Pika Pika!').toBase64();
  console.log(encrypted); // spsAgpAHVSClkOKb0LTT8Q
  
  const decrypted = nodeCrypt.decrypt(encrypted);
  console.log(decrypted); // Pika Pika!

Tips and trikcs

• If you want to decrypt a value with another instance of the library, don't forget to specify the encoding to use:

  // Encrypt value.
  const nodeCrypt = new NodeCrypt('mysecret');
  const encrypted = nodeCrypt.encrypt('Pika Pika!').toBase64();
  
  // Decrypt value with the same instance.
  const decrypted = nodeCrypt.decrypt(encrypted);
  
  // Decrypt value with another instance.
  const newInstance = new NodeCrypt('mysecret');
  // Specify the encoding of the encrypted text.
  newInstance.encoding = 'base64';
  newInstance.decrypt(encrypted);

Environements variables

You can give the above values by environements variables:

Environement variable	Code variable	Class
NODECRYPT_SECRET	secret	NodeCrypt, NodeCryptIV
NODECRYPT_IV	iv	NodeCryptIV

Author

Guillaume Quittet

https://www.linkedin.com/in/gquittet/

Give me a coffee ☕

https://paypal.me/gquittet