If you are interested in sending and receiving encrypted emails, these links are a great place to get started in understanding the process and configuring your system.
- What is a Digital Signature – David Youd
An excellent explaination of how digital signatures work. The graphics help make this easy to understand. The article focuses on how it works by telling short stories instead of dealing with all the technical background.
- How PGP Works – Network Associates
This is a good introduction to public/private key encryption. PGP (pretty good privacy) is one implementation of public/private keys. The article can be applied to other solutions as well.
- Encrypted E-Mail Company Hushmail Spills to Feds – Ryan Singel
A example of how you don‘t want to handle email encryption.
- Thunderbird and Encrypting E-mail – Al Billings
Instructions for setting up Thunderbird, Enigmail, and GnuPG. Uses Pretty Good Privacy for encryption.
A plugin for Firefox that allows you to encrypt, decrypt and sign mail using the GMail interface. It will break your ability to search messages.
- Using S/MIME Signed/Encrypted Email with a Windows Mobile Device – James Chen, Adam Glick
This is a detailed set of instructions showing how to setup up encryption to work with a Windows Mobile device.
- Email Encryption – Mike
A general look at why you might want encryption and some discussion about implementing it in a business setting.
- Free Personal Email Certificate – Comodo
Free certificates for use in encrypting and signing personal emails. Includes setup instructions for Windows.
- How to Setup Up Encrypted Mail on OS X – Kermadec
Instructions for setting up Apple Mail to use certificates for encryption, signatures and decryption.