• Why is the ROT13 algorithm insecure?

  • Storing your username and password in your php.ini file rather than in individual scripts is beneficial for security: true or false?

  • What encryption algorithm is your best choice for general encryption use?

    • a) 3DES
    • b) Rijndael
    • c) Serpent
    • d) Twofish


Want to learn PHP 7?

Hacking with PHP has been fully updated for PHP 7, and is now available as a downloadable PDF. Get over 1200 pages of hands-on PHP learning today!

If this was helpful, please take a moment to tell others about Hacking with PHP by tweeting about it!

Next chapter: Further reading >>

Previous chapter: Summary

Jump to:


Home: Table of Contents

Copyright ©2015 Paul Hudson. Follow me: @twostraws.