Security and Authentication

Fortunately, security between clients and servers on the World Wide Web is mainly handled through public key encryption. This encryption method is a built-in feature of most web servers and clients, including Android. As a programmer, you need not concern yourself with public key encryption, other than making sure that your browser requests use the SSL protocol by prefacing every URL with the https (s for security) tag. Remember, if you use http, it will not be a secure connection.

Servers handle user authentication in diverse ways, most involving a user ID and password known to the server's user database. Handling this authentication is simple, and most server documentation includes code examples.

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