<p>I'm looking for very simple obfuscation (like encrypt and decrypt but not necessarily secure) functionality for some data. It's not mission critical. I need something to keep honest people honest, but something a little stronger than <a href="http://en.wikipedia.org/wiki/ROT13" rel="noreferrer">ROT13</a> or <a href="http://en.wikipedia.org/wiki/Base64" rel="noreferrer">Base64</a>.</p>

<p>I'd prefer something that is already included in the <a href="http://en.wikipedia.org/wiki/.NET_Framework" rel="noreferrer">.NET</a> framework 2.0, so I don't have to worry about any external dependencies.</p>

<p>I really don't want to have to mess around with public/private keys, etc. I don't know much about encryption, but I do know enough to know that anything I wrote would be less than worthless... In fact, I'd probably screw up the math and make it trivial to crack.</p>

The namespace
```
System.Security.Cryptography
```
contains the
```
TripleDESCryptoServiceProvider
```
and
```
RijndaelManaged
```
classes
Don't forget to add a reference to the
```
System.Security
```
assembly.