We’ve developed a service, which sends e-mails… quite trivial at this step.
The next step will be: handling the bounces.
To implement this I need to add some information into the headers… Let’s say it’s a simple string (to keep the question really basic).
Which compression/encryption (.net-built-in prefered) should I take, when I’m looking for an algorithm which includes a checksum internally (I do not want to create a CRC or alikes and add it to the headers either) – so, changing some char of the encrypted/compressed string doesn’t mean it’s valid!
This need not be a “high-sofisticated” algorithm, as I just want a basic detection against changes/injections…
Just to be clear: There must be a chance to decompress/decrypt!
If you need to decompress/decrypt the message, you probably want a two-way encryption. I am not an expert here, but I think .NET comes with built-in support for AES, which is a Rijndael algorithm. You can get more information here.