Nodejs decrypt using crypto error wrong final block length

Question

I use this code to crypt/decrypt string value

var crypto = require(\'crypto\');

function encrypt(text){
    var cipher = crypto.createCipher(\'aes-256-cbc\'         


        

Answer 1

I also faced the same issue. I had to go through all the comments to check for answer and @Alexey Ten's comment helped me. So in order to make @Alexey Ten's answer more visible below are the changes.

var crypto = require('crypto');

function encrypt(text){
  try{
    var cipher = crypto.createCipher('aes-256-cbc','secret key');
    var encrypted = cipher.update(text.toString(),'utf8','hex') + cipher.final('hex');
    return encrypted;
    } catch(exception) {
      throw exception;
    }
}

function decrypt(text){
try{
    var decipher = crypto.createDecipher('aes-256-cbc','secret key');
    var decrypted = decipher.update(text.toString(),'hex','utf8') + decipher.final('utf8');
    return decrypted ;
  } catch(exception) {
     throw exception;
   }
}