Special Edition Using® Microsoft® Office Outlook® 2003

Sending and Receiving Encrypted Messages

Your digital certificate also enables you to send encrypted messages. The difference between sending an encrypted message and sending a signed message is that when sending an encrypted message, the recipient must already have a copy of your public key to be able to decrypt the message. The encryption of the message is based on information stored in the recipient's digital ID. Therefore, encryption can be used to send email only to a recipient who has previously sent you a digitally signed message.

Saving a Sender's Public Key

To exchange encrypted mail with another individual, you must have a copy of that person's public key. The easiest way to obtain a copy of someone's public key is for him to send you ...