C# string encoding using ToBase64String

Question

I'm working on a C# encryption program, and I am pretty much done with it.

It encrypts and decrypts a string that I pass as an argument.

The only problem is that when I compare to equivalent Java encryption program I notice that c# converts hexadecimal of special characters.

Is there a way I can tell the program not to convert special characters and just represent them as hexadecimal?

Here is an example

Java :

4g8LAQXy%2B1M%3D

C#:

4g8LAQXy+1M=

As you can see, '+' in hex is 2B and '=' in hex is 3D .

Answer 1

That looks like url % encoding, not base-64; have you tried HttpUtility.UrlEncode() ?

string s = "4g8LAQXy+1M=";
string t = HttpUtility.UrlEncode(s); // 4g8LAQXy%2b1M%3d