Tutorial 4: How to Create Secure Emails

For my final tutorial of ISM3004 I will discuss how to secure vital information that you send through emails. First thing you need to know is what are the most popular Email Clients that allow you to secure your emails. The most popular email clients are Thunderbird, Endora 5.1, Outlook, and Outlook Express.(http://webnet77.com/secure-email.html)  For the purpose of this discussion will use Mozilla Thunderbird. There are several ways to secure an email like popping which allows  "the user name and password are sent in the clear over the internet." (http://webnet77.com/secure-email.html) The way we are going to secure our email is by getting a certificate from Comodo. Here are the steps in how to secure your email:

• Visit Comodo's Website and click on Free Download. 

  

• Next type in the required information into the text fields. 
• Next Submit the information and look in your Thunderbird inbox for a message from Comodo.   
• You will click on the link which will allow you to download the certificate (make sure it opens with Mozilla Firefox)
• Once the certificate is downloaded you must import it into Thunderbird by going to the tools menu on the Firefox window that opened from clicking the link, click "options", than click "advanced" icon,  click "view certificates".

• Click your certificate than click "backup"
• Save to a location you can find easily and return to Thunderbird.(may be required to create a user name and password)
• Once in Thunderbird, Click the tools menu and select "Account Settings"
• Click "View Certificates",  and while in the certificate manager select import and locate the file containing the certificate you downloaded.
• After selecting to import this certificate it may ask you for the user name and password you created for the certificate.
• Now return to the "Account Settings" Menu and choose the "Security" Tab. There should be a sections titled "Digital Signing". Click the "Select" button in that section and choose the newly imported certificate in the drop down menu and click "OK"

 Now you have successfully installed a certificate into Thunderbird which allows you to sign your messages, by choosing the security drop down menu while composing a message and choosing "digitally sign."  This is the first level of security you can give your emails.The next step in security is to encrypt the email. To send an encrypted email to somebody they must first send you an email containing their public key which allows you to encrypt an email that only they can read. Once this has been done you just compose a message and in the security tab choose "encrypt this message."
 

References:

• http://www.comodo.com/
• http://webnet77.com/secure-email.html
• http://kb.mozillazine.org/Installing_an_SMIME_certificate