Translations:GnuPG/111/en

In practice this is not 100% accurate with reality, but will give a good idea to the newcomer. For more information, check Wikipedia on the Diffie-Hellman protocol. For even more info go to the public library and grab a copy of the "Handbook of Applied Cryptography" by Alfred J. Menezes, Paul C. van Oorschot and Scott A. Vanstone. This book is also available online for free at the above site.