Infineon Security Platform Solution
Sending Encrypted Messages
To send an encrypted message to someone, you first need a copy of his
or her public encryption key or encryption certificate (his certificate
contains a copy of his public key). Make sure that you have already obtained
the recipient’s public key certificate and that the recipient is in your
contacts list, before you proceed with the steps below:
Windows Mail/Outlook Express
Start Microsoft Windows Mail/Outlook Express.
Click on File > New > Mail Message or
click on New Message in the Message
menu to create a blank message.
Insert the recipient’s e-mail address into the
To field.
Add your text to the Subject
and Body areas of the message window.
Click on Tools > Encrypt or
on the Encrypt message icon to request that the message
is encrypted. The icon has a picture of an envelope with a blue lock over
it (the lock turns blue when your mouse hovers over the button).
Optional:
If you also want to digitally sign the message, then select the "Digitally
sign message" icon in addition to the "Encrypt message"
icon.
Click on Send to send the encrypted
message. If the message does not disappear from your Outbox, click
on the Send and Receive button to manually send the message
to your outbound e-mail server.
Outlook 2007
Start Microsoft Outlook 2007.
Click on File > New > Mail Message
or click on the New
button to create a blank message.
Insert the e-mail address of the intended recipient
into the To field.
Add your text to the Subject
field and to the Body
of the message.
Click on the Options tab.
In the Options pane, click on the arrow in the right side of More Options tab to open
the Message Options dialog box.
Click
on Security Settings ...
in the Message Options dialog. The Security Properties dialog
is displayed.
Select the option Encrypt message contents and attachments.
Click on Change Settings ... to display the
Change Security Settings dialog. This allows you to change your
security settings (i.e. your certificate).
Close the Security Properties dialog by
clicking on the OK button.
Close the Message Options dialog by clicking
on the Close button.
Send your encrypted e-mail message by clicking on
the Send button in the message window.
Because Outlook 2007 only uses the recipients public key to encrypt your
e-mail, you are not requested to insert your private key password.
Outlook 2003
Start Microsoft Outlook 2003.
Click on File > New > Mail Message
or click on the New Mail Message
button to create a blank message.
Insert the e-mail address of the intended recipient
into the To field.
Add your text to the Subject
field and to the Body
of the message.
Click on the Options ... button. The Message Options
dialog appears.
Click on Security Settings ... in the Message
Options dialog the Security Properties dialog appears.
Select the option Encrypt message contents
and attachments.
Click on Change Settings ... to get the
Change Security Settings dialog again to change your security settings
(i.e., your certificate).
Close the Security Properties dialog by
clicking on the OK button.
Close the Message Options dialog by clicking
on the Close button in the Message Options dialog.
Send your encrypted e-mail message by clicking
on the Send button in the message window.
Because Outlook 2003 only uses the recipients public key to encrypt your
e-mail, you are not requested to insert your private key password.
Outlook XP
Start Microsoft Outlook XP.
Click on File > New > Mail Message
or click on the New Mail Message
button to create a blank message.
Insert the e-mail address of the intended recipient
into the To field.
Add your text to the Subject
field and to the Body
of the message.
Click on the Options ... button. The Message Options
dialog appears.
Click on Security Settings ... in the Message
Options dialog the Security Properties dialog appears.
Select the option Encrypt message contents
and attachments.
Click on Change Settings ... to get the
Change Security Settings dialog again to change your security settings
(i.e., your certificate).
Close the Security Properties dialog by
clicking on the OK button.
Close the Message Options dialog by clicking
on the Close button in the Message Options dialog.
Send your encrypted e-mail message by clicking
on the Send button in the message window.
Because Outlook XP only uses the recipients public key to encrypt your
e-mail, you are not requested to insert your private key password.
Outlook 2000
Start Microsoft Outlook 2000.
Click on File > New > Mail Message
or on the New Mail Message button to create a blank message.
Insert the recipient’s e-mail address into the
To field.
Add your text to the Subject
field and body of the message.
Click on the Options button or
click on Options in the View menu. The
Message Options dialog box appears.
Select Encrypt message contents
and attachments.
Click on Close to close the Message
Options dialog box.
Click on the Send button to send
the encrypted message (e-mail).
You do not need your private key to send encrypted e-mail, because the
encryption occurs using the public key of the recipient. However, you
do need your private key to read an encrypted e-mail because the decryption
requires the private key that corresponds to your public key used to encrypt
the e-mail.
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