I’ve been working on a C# Library to make hashing strings an easy (and fun?) task. I’ll show you the very basic bare-bones usage here:

Hashing mudkipz = new Hashing();
string m5 = mudkipz.md5("So, I herd u liek mudkipz.");
string s1 = mudkipz.sha1("So, I herd u liek mudkipz.");
string s256 = mudkipz.sha256("So, I herd u liek mudkipz.");
string s384 = mudkipz.sha384("So, I herd u liek mudkipz.");
string s512 = mudkipz.sha512("So, I herd u liek mudkipz.");

The library currently supports md5, sha1, sha256, sha384, and sha512. So yeah that’s all nice and easy to use and such but it there more? Yes, there is! There are four different formats your string can be hashed into:

1. AB-CD-EF (default)
2. ab-cd-ef
3. ABCDEF
4. abcdef

For any of you that have used PHP’s hashing functions you’ll notice that format number 4 is identical. Let’s say you want to have everything be formatted like PHP does. Using format 4.

Hashing mudkipz = new Hashing();
mudkipz.setFormat(4);
string blah1 = mudkipz.md5("So, I herd u liek mudkipz.");
string blah2 = mudkipz.sha1("So, I herd u liek mudkipz.");

You’ll notice that both strings will be formatted in the same way PHP would. We can switch back in the middle too.

Hashing mudkipz = new Hashing();
mudkipz.setFormat(4);
string blah1 = mudkipz.md5("So, I herd u liek mudkipz.");
string blah2 = mudkipz.sha1("So, I herd u liek mudkipz.");
mudkipz.setFormat(1);
string blah3 = mudkipz.md5("So, I herd u liek mudkipz.");
string blah4 = mudkipz.sha1("So, I herd u liek mudkipz.");

What if you want everything to be formatted with format 3 except for just one? Ya know, the odd man out. Instead of switching default formats you can just specify a extra format parameter.

Hashing mudkipz = new Hashing();
mudkipz.setFormat(3);
string blah1 = mudkipz.md5("So, I herd u liek mudkipz.");
string blah2 = mudkipz.sha1("So, I herd u liek mudkipz.", 4);
string blah3 = mudkipz.sha256("So, I herd u liek mudkipz.");

blah2 would then be formatted using format 4. All the others would use format 3.

That’s just about it. It’s licensed under the Creative Commons Attribution-Share Alike 3.0 United States License. A link back would be nice, but not necessary. Use the following links to download. Enjoy!

Regex.Replace(BitConverter.ToString(hashedBytes), "-", "");

Hashing in C# is quite a bit different then languages like PHP. In PHP to hash a string via MD5 you would simply use the md5 function as so:

md5("string")

Let’s stop complaining and get right down to it.

Create  a new Console project in either MS Visual C# or Mono. Make a new class after your main one. We’ll call it Hasher. Add the following to the top of your file.

using System.Security.Cryptography;

Now add the following code to your Hasher class

public string Hash(string originalString)
{
Byte[] originalBytes;
Byte[] hashedBytes;
System.Security.Cryptography.MD5 md5;
md5 = new MD5CryptoServiceProvider();
originalBytes = ASCIIEncoding.Default.GetBytes(originalPassword);
encodedBytes = md5.ComputeHash(originalBytes);
return BitConverter.ToString(hashedBytes);
}

I won’t explain this in much detail. Mainly for the reason that it’s fairly simple and for the most part self explanatory.

Now we need to make the front end. Add the following to your Main class.

Console.Write("Enter your string: ");
string text = Console.ReadLine();
Hasher crypt = new Hasher();
string md5 = crypt.Hash(text);
Console.WriteLine("MD5: " + md5);

That takes the input it gets in the terminal, puts it in the Hash function and then writes the result (the MD5 hash) to the console. Pretty simple stuff. Now we’re gonna do this with SHA.

C# supports four different types of SHA. SHA1, SHA256, SHA384, and finally SHA512. Here is the entire code for converting text to SHA1.

using System;
using System.Text;
using System.Security.Cryptography;
namespace SHA1
{
class MainClass
{
public static void Main(string[] args)
{
Console.Write("Enter your string: ");
string text = Console.ReadLine();
Hasher crypt = new Hasher();
string sha1 = crypt.Hash(text);
Console.WriteLine("SHA1: " + sha1);
}
}
class Hasher
{
public string Hash(string originalString)
{
Byte[] originalBytes;
Byte[] hashedBytes;
System.Security.Cryptography.SHA1 sha1;
sha1 = new SHA1CryptoServiceProvider();
originalBytes = ASCIIEncoding.Default.GetBytes(originalString);
hashedBytes = sha1.ComputeHash(originalBytes);
return BitConverter.ToString(hashedBytes);
}
}
}

As you might have noticed it was largely a copy and paste of our MD5 hasher. The above script can also be modified to create different types of SHA hashes like those previously mentioned. Really, you can just switch out SHA1 with the other kind of SHA hash you want.  For instance instead of System.Security.Cryptography.SHA1 sha1; you could put System.Security.Cryptography.SHA256 sha256; And then change a few other instances.

I sorta wish C# provided an easy(er) way to convert hashes on the fly but to my knowledge it does not. You can stick these in your application and use them to give you the functionality C# doesn’t give us on its own. By the way, if you get any errors with the stuff I posted, all of them should be easily fixed. Let me know of my errors so I can fix them!

Good luck!

http://tippu.blog.co.in/2009/03/09/wpf-placing-your-wpf-application-on-the-system-tray/

First, I just learned that the 3GS is now jailbreakable with publically accessable tools for both Windows and Mac. I don’t have one, but this is great news. The iPhone Dev-Team Blog also has a post regarding the release of their own version of the jailbreak. There’s more to it than this but if you wanna know more: Google.

Second, I was wondering how you could put your Windows Presentaiton Foundation C# Application in the system tray. I found a good tutorail (second down link at the top) but it had some places where it needed fixing (or at least one).

C# had a problem with the Window_Closing event. First “Window” needs to be the name of your window. Mine was “Tray” so it would be “Tray_Closing”. Next, in your xaml file (in my case, “Tray.xaml”) you need to add this to the end of your opening <Window> tag: Closing="Tray_Closing" again, you need to change “Tray” accordingly. So it might end up looking like this:

<Window x:Class="myApp.Tray"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
Title="Tray" Height="300" Width="300" Name="winTray"
Closing="Tray_Closing">

For any of you guys that wanna do this, it’s here. Hope I could help somebody!

I’ve always wondered about those two options in Microsoft Visual C# .NET The question of whether to use WinForms (Windows Forms) or WPF (Windows Presentation Foundation). The above blog post has given me the answer.

Just wanted to share it with you. I hope any of you Visual C# guys find it just as helpful as I did.