Decrypting AES256 with node.js returns wrong final block length

Question

Using this Gist I was able to successfully decrypt AES256 in Node.js 0.8.7. Then when I upgraded to Node.js 0.10.24, I now see this error:

TypeError:

Answer 1

My issue was that the string I was passing to my decrypt function was empty. I built in a check for empty strings and I did not receive the message again.

decrypt: function(text){
                if(text.length == 0){
                    return text;
                }
                return this.decipher.update(text, 'hex', 'utf8') + this.decipher.final('utf8');
            }