ASP.Net Mail encryption

[Mehdi]

Hi, I am using SmtpMail and MailMessage classes in ASP.Net (1.0) to send
mails. I would like to send Credit Card number via those mails. What's the
best way to do that? If encryption, then how can I decrypt it if I am using
Microsoft Outlook as the mail client? Are there standard ways to deal witth
this situation in .Net or is it not a good idea to transmit Credit card
number via email?
Any help or pointers are highly appreciated, thanks, Mehdi.

 

[Joe Kaplan \(MVP - ADSI\)]

The easiest way to do this in .NET 1.x without third-party software is to do
COM interop to CAPICOM and CDOSYS:

http://support.microsoft.com/default.aspx?scid=kb;en-us;280391

..NET 2.0 has support for standard enveloped data CMS messages in the new
crypto classes, so you can do this with the built in framework classes in
the new version.

Joe K.