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How do I creating and read encrypted XML files with VB.Net?

Hey all,

I am having a bit of trouble figuring out how to write out and read back some encrytped XML files using VB.Net 2005 and could use some help.

What I am trying to do is two fold:
-One: Save the contents of a loaded XMLDocument object as an encrypted XML file (the type of encryption does not matter; however, speed of decryption will be important down the road.
-Two: Read the contents of the encrypted file back into an XMLDocument object which I can then run some Xpath statements against.

The key would be known by both the program doing the encryption as well as the program doing the decryption.

Seems straight-forward. I have found a lot of great XML/encryption/decryption examples but nothing that quite fits. Your help is appreciated.

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dgnatek

ASKER

Thats a fine start. However the example references an EncryptedXML object, supposedly part of System.Security.Cryptography.Xml. However, I do not not have an XML (or XML.EncryptedXml) under System.Security.Cryptography. I am on v2.0 of the framework. Any suggestions?

Imports System
Imports System.Security.Cryptography
Imports System.Security.Cryptography.Xml             <=== Does not exist.
Imports System.Xml

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dgnatek

ASKER

As a followup to the above comment, it is necessary to add a reference to Sytem.Security.dll in your project properties before references to System.Security.Cryptography.Xml are valid. Just adding an Imports statement was/is not enough.

dgnatek

ASKER

I was really hoping for a VB.Net based solution (example). However, I was able to decode the C# stuff. Thanks.