10 Wrap Up
It has been said that building the Internet solved the world’s most complex engineering problem to date. The design...
Author: admin
9. The OSI Model
So far we have spent all of our time describing the four-layer model used to design and implement the TCP/IP protocols...
8.7 Glossary-Chapter 8
asymmetric key: An approach to encryption where one (public) key is used to encrypt data prior to transmission and a...
8.8 Questions-Chapter 8
You can take this quiz online at http://www.net-intro.com/quiz/ How do we indicate that we want a secure connection...
8.6 Summary-Chapter 8
Since the Internet was nearly 20 years old before we needed broadly deployed security, we had to find a way to add...
8.5 Certificates and Certificate Authorities
While public/private key encryption works to allow the distribution of encryption keys across insecure networks and...
8.4 Encrypting Web Browser Traffic
Since web browsers and web servers operate at the application layer, we barely notice whether we are using encrypted...
8.3 Secure Sockets Layer (SSL)
Since network engineers decided to add security nearly 20 years after the Internet protocols were developed, it was...
8.2 Two Kinds of Secrets
The traditional way to encrypt transmissions is using a shared secret (a password, a sentence, a number) that only the...
8.1 Encrypting and Decrypting Data
The concept of protecting information so it cannot be read while it is being transported over an insecure medium is...
8 Secure Transport Layer
In the early days of the Internet, networks were small and all of the routers were in secure locations. As long as...
7.9 Questions-Chapter 7
You can take this quiz online at http://www.net-intro.com/quiz/ Which layer is right below the Application layer?...
7.8 Glossary-Chapter 7
HTML: HyperText Markup Language. A textual format that marks up text using tags surrounded by less-than and...
7.7 Summary-Chapter 7
The entire purpose of the lower three layers (Transport, Internetwork, and Link) is to make it so that applications...
7.6 Writing Networked Applications
The applications which send and receive data over the network are written in one or more programming languages. Many...
