PHP and MySQL Web Development, Third Edition

Chapter 17. Implementing Secure Transactions with PHP and MySQL

In this chapter, we explain how to deal with user data securely from input, through transmission, and in storage. This way, you can implement a transaction between your site and a user securely from end to end.

Key topics covered in this chapter include

• Providing secure transactions

• Using Secure Sockets Layer (SSL)

• Providing secure storage

• Determining whether to store credit card numbers

• Using encryption in PHP

Providing Secure Transactions

Providing secure transactions using the Internet is a matter of examining the flow of information in your system and ensuring that, at each point, your information is secure. In the context of network security, there are no absolutes. No system is ever ...