Triple DES Encrypt C# - Decrypt in Java

Question

I\'m getting a Triple DES decrypted string from the clients server, which has been coded in c# (see below):

using System.IO;
using System;
using System.Secur         


        

Answer 1

In your C# code, you use ASCII:

bytClearText = ASCIIEncoding.ASCII.GetBytes(strClearText);

While in Java you use UNICODE:

byte[] encryptKeyBytes = encryptKey.getBytes(UNICODE_FORMAT);

Try to change your C# to use UNICODE or your java code to use ASCII.

Also, since the C# is padding the output :

strEncryptedChar = strEncryptedChar.PadLeft(2, Convert.ToChar("0"));

You probably must check to remove all the '00' in the crypted string, so 1D30CC3DE1641D7F5E821D13FC1200C3 will become 1D30CC3DE1641D7F5E821D13FC12C3

(you must check if it's in the boundaries of an hex expression: 1C01A1 should probably be modified since it got a padding on the second Hexa 1C 01 A1: 1C1A1