Encrypting a text file before email

[Jefferson]

Hey Boys 'n Girls...

I have developed a application that captures data into a csv file from the client and then transmits at the end of the month to my MS-CRM queue.
All works perfectly, but due to the nature of the data, i need to encrypt the entire csv file.

I need to "When the user saves" decrypt the file, write to it, then encrypt it again. after it is sent, i will have an application on my side that decrypts this csv file so i can import the data to the relevant systems.

How will i go about doing this???
If possible, please keep it simple.

Thanks
Jefferson

 

[mjb3030]

A basic cryptography tutorial... http://www.codeproject.com/csharp/Using_CryptoStream.asp

Here is another article that has full encryption/decryption code for you to use: http://www.codeproject.com/csharp/FileEncryptDecrypt.asp

Here is a VB version: http://www.codeproject.com/vb/net/encryption_and_decryption.asp