Triple DES Encryption and Decryption using User provided key by Dhananjay Kumar on Oct 30, 2009
In this article, I will explain how to do a Triple DES encryption on a plain text using user provided key. I will calculate a MD5 Hash on the key provided by the user. And that key will be user to encrypt and decrypt the message.

Encrypt a file using Rijndael by Muhammad Shakir on Oct 22, 2009
In this artical, we will encrypt a file and embed a encrypted key through wich we encrypt that file

Cryptography in Asp.net by Rajendra Kumar Yerra on Sep 07, 2007
This article explains what is Cryptography? Why it is needed? and the types of Cryptography.

Grypto-Grid Solution to digital signatures by Raghavendra Prabhu on Apr 04, 2007
This article describes as to how a Grid middleware can be easily used for a Cryptography problem.

File Tampering Detection by Scott Lysle on Mar 06, 2007
This article describes an easy approach to determining whether or not two files are exactly the same.

Key Issue of sharing by Muhammad Shakir on Jan 23, 2007
Describing how can we share a key from one place to another.

Implementation of MD-5 by Muhammad Shakir on Jan 20, 2007
Describing, how can we implement MD5 and how it works and what is purpose of Hash algorithm.

Random isn't Really Random -- C# Random Number Generation by Matthew Cochran on Jul 18, 2006
This article covers overriding the System.Random object in order to produce better random numbers. The project file contains a library of eight commonly used random number generating algorithms, the best of which is the Mersenne Twister algorithm.

Cryptography in Microsoft.NET Part II: Digital Envelop and Digital Signatures by Gowri S Paramasivam on May 30, 2006
Part-I of this article covered cryptography in the context of encryption. This part continues from where part-I left. It assumes that the reader understands the purpose of encryption, knows about the two types of encryption namely asymmetric encryption and symmetric encryption and the fundamental differences between them. It also assumes that the reader understands encryption-decryption classes in System.Security.Cryptography namespace and the stream based encryption model in. NET framework class library (FCL).

How easy Cryptography is in VS.Net by Sushmita Kumari on Mar 08, 2006
What can be done regarding the security issues? Part of the solution is to secure important data - more specifically, using strong encryption thats what we will see in this article.

Using the DPAPI through ProtectedData Class in .Net Framework 2.0 by Muhammad Mosa on Jan 06, 2006
The objective of this tutorial is to show how the DPAPI can be used to encrypt and decrypt data. Encrypt some data using ProtectedData Class in System.Security.Cryptography namespace and save it to a file. Show that the data can be decrypted using the same class but deferent method. Login as a different user,and show that the data cannot be decrypted.

Symmetric Encryptor Beta1 by Saurabh Nandu on Jan 04, 2006
Free to use Encrypt/Decrypt using 2 Symmetric Algorithms 'DES' and 'RC2' coded in C#.

Cryptography in .NET by Suprotim Agarwal on Jan 04, 2006
This article gives a brief overview of Cryptography and the Cryptography support provided by the .NET Framework. I begin by introducing Cryptography and then proceed to examine the various types of it. In particular, I review and analyze the various cryptography algorithms and objects supported by .NET. I conclude after proposing and briefly discussing the algorithmic technique that would work best for you.

Cryptography in Microsoft.NET Part I: Encryption by Gowry S Paramasivam on Jan 04, 2006
In this article, Gowry sheds lights on the basics of cryptography and how it can be implemented in .NET.

File Encryption by Nenad Djodievic on Dec 22, 2005
The classes in the .Net Framework cryptography namespace manage many details of cryptography for you.

How do I use different text encodings? by Mahesh Chand on Mar 22, 2007
This sample illustrates how to use multiple encoding formats available from the System.Text namespace.

How do I generate and compare a hash value? by Mahesh Chand on Jan 29, 2007
It is easy to generate and compare hash values using the cryptographic resources contained in the System.Security.Cryptography namespace. Because all hash functions take input of type Byte[], it might be necessary to convert the source into a byte array before it is hashed.

How do I Encrypt and Decrypt a file? by Mahesh Chand on Jan 29, 2007
The following sample code shows the creation of a CryptoStream to encrypt a file using the DES algorithm. First, the FileStream that will contain the encrypted file is created.