decrypt a message encrypted in php

[smart--petea]

Hi. I have an Yii application using "rijndael-128", "ofb" with IV. The encrypted message is saved in mysql and read in a node.js application. I try to decrypt it. The message is stored in mysql as blob and node-mysql transform it in a Buffer. I do not change it. My algorithm is

let message = ....; //Buffer
let Decipher = new MCrypt("rijndael-128", "ofb");
let ivSize = Decipher.getIvSize();
let iv = message.slice(0, ivSize); //IV
Decipher.open(encryptionKey, iv); //encryptionKey is considered as password on Yii side
console.log(Decipher.decypher(message.slice(ivSize)); //decyper only the encrypted part, without IV
//the result printed by console.log is = "correct message" + "garbage"

How could I get rid of the garbage from the decrypted message?

Thank you

[tugrul]

Can you create test case using test data with test keys by Yii application and pull request like following javascripts:

https://github.com/tugrul/node-mcrypt/tree/master/test

you able to run tests using npm test command

I'm going to inspect error detail with this

[misterfresh]

I'm also having issues trying to decode a prestashop cookie with MCrypt("rijndael-128", "cbc").
The first couple characters of the message are replaced with garbage, the rest of the message is decrypted fine, but there are no errors. I'll try to see if I can reproduce it with dockerfiles.

[misterfresh]

When I make "var_dump" in the php file, I get as cookie contents :
date_add|2017-04-27 23:30:25¤id_lang|1¤id_currency|1¤id_guest|571369¤id_connections|590882¤checksum|2523349829

but with node-mcrypt I get:
����Ӱy����J" R�-27 23:30:25¤id_lang|1¤id_currency|1¤id_guest|571369¤id_connections|590882¤checksum|2523349829

[tugrul]

Currently im refactoring codebase of https://github.com/tugrul/libmcrypt-gyp

@misterfresh test case will be better to see to me.

Can you write a test case like one of the file inside of test folder?

It is pretty simple.

Thanks.