XCrypt - encryption & decryption class wrapper

Introduction

This article is built on top of 'XCrypt' -- the legendary cryptography wrapper which had been around in CodeProject for a while.   Unfortunately the original author of the article has left the same unattended for several years.  I brought the same to the attention of CP Team vide http://www.codeproject.com/Messages/4409016/Article-Adoption.aspx and as per the guidance I am submitting this alternative branch. 

XCrypt helps as a generic encryption and decryption wrapper for .NET applications. Besides the same, it adds the following two algorithms (which are not part of .NET Base Class Library):

• Blowfish
• Twofish 

Background 

1. Basic Concepts, BlowFish, TwoFish:  Credits to the parent XCrypt
2. Blakesharp:  http://www.codeproject.com/Articles/286937/BlakeSharp-A-Csharp-Implementation-of-the-BLAKE-Ha 

Using the code

The sample code initializes the engine to 3DES, you also can call InitializeEngine again to reset the engine to a different algorithm. 

<pre lang="cs" id="pre0" style="white-space: pre-wrap; word-wrap: break-word; margin-removed 0px; ">XCryptEngine xe = new XCryptEngine();
...
xe.InitializeEngine(XCryptEngine.AlgorithmType.TripleDES);

enc_str = xe.Encrypt(src_str);
dec_str = xe.Decrypt(enc_str);

xe.DestroyEngine(); 

Points of Interest

1. XCrypt earns the credit of making me learn different encryption algorithms besides kindling interest to explore on the same. 
2. .NET has a good cryptography library but the paucity of documentation in MSDN as an end-to-end solution makes you run pillar to post whilst trying to decide on a particular algorithm. XCrypt endeavors to fulfill the gap. 

Changelog: 

The following are the changes from its parent (XCrypt): 

1. Included the two BlakeSharp algorithm into XCrypt as I had highlighted. 
2. The Test Application had hard-coded 'This is a test string' as the initial value'. To make it a  bit more realistic I have replaced that with srcText.Text = Environment.UserName.Length > 0 ? Environment.UserName : "Hello World";
3. The Test Application had bloated piece of code that the Algorithm Names were repeatedly hard-bound. I have tried replacing the same with a quick and small reflection code (LoadEnumMembers())
4. The Test Application had a bug that for Hash where decryption would not be possible. Hence I have changed this by exposing two more public methods disabling Decrypt button for the same. 
5. I have removed the setup and other project which might not be of utility value for lot of users. 

History 

1. First Update Built on XCrypt in a humble endeavor to make it a one-stop lookup for cryptography library in .NET