Adonis Encryption react js decryption and vice a versa

[pawan-khade]

I want to encrypt message in adonis 5 using aes 256 algorithm with IV. using that iv I want to decrypt that message in react js and vice a versa how to do that? I have searched very much but nothing is working

[pawan-khade]

This is my Node JS Code for encryption and decryption

public async encrypt(message)
  {
    let key = Env.get('ID1');
    const iv = crypto.randomBytes(16).toString("hex").slice(0, 16);
    const encrypter = crypto.createCipheriv("aes-256-cbc", key, iv);
    let encryptedMsg = encrypter.update(message, 'utf8', 'hex');
    encryptedMsg += encrypter.final("hex");

    return iv+'-'+encryptedMsg;
  }

  public async decrypt(encryptedMsg)
  {
    let key = Env.get('ID1');
    let iv = encryptedMsg.split('-')[0];
    let message = encryptedMsg.split('-')[1];

    const decrypter = crypto.createDecipheriv("aes-256-cbc", key, iv);
    let decryptedMsg = decrypter.update(message, 'hex', 'utf8');
    decryptedMsg += decrypter.final("utf8");
  }

How to write its reverse code in react js.

[thetutlage]

Nope, the iv is not return during the encrypt call. Also, I am wondering, if encryption has any use when you will share the iv and the key to decrypt the value on client side

[pawan-khade]

const iv = crypto.randomBytes(16).toString("hex").slice(0, 16);
is generating IV dynamically

[pawan-khade]

and yes backend and front end will be having same secret key

[thetutlage]

To be honest, I don't properly understand the use case here and not sure if changing the return type of the encrypt method because it will lead to a breaking change.

Maybe, the best option is to roll out your own internal service for Encryption and decryption.

[pawan-khade]

Thanks for timely reply. I will surely do that.

[darshithedpara]

@pawan-khade Did you find any solution for this?