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Table of Contents
Chapter 1
Chapter 2
Chapter 3
Chapter 4
Chapter 5
Chapter 6
Chapter 7
Chapter 8
Chapter 9
Chapter 10
Chapter 11
Chapter 12
Chapter 13
Chapter 14
Chapter 15
Chapter 16
Chapter 17
Chapter 18
Chapter 19

Chapter 14: Network Security and Cryptography
Public Key Cryptography

Public key cryptography uses two keys instead of just a single key.
    What the private key encrypts, only the public key can decrypt.
    What the public key encrypts, only the private key can decrypt.
You can send me a secret email by encrypting it with my public key. Only I have a key, my private key, which will decrypt the message.

I can assure you that I am whom I say I am by encrypting a message to you with my private key. You can use my public key to try to decrypt the message. If my public key does decrypt the message, it could only have been created by my private key and the message therefore must have come from me.

Copyright 1998 by Digital Springs, Inc. All Rights Reserved.