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SECURE SITES. A SECURE CONNECTION TERMS Secure Sockets Layer (SSL) An older Internet protocol that allows for data transmission between server and client.

Published byMalia Hunnicutt Modified over 9 years ago

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Presentation on theme: "SECURE SITES. A SECURE CONNECTION TERMS Secure Sockets Layer (SSL) An older Internet protocol that allows for data transmission between server and client."— Presentation transcript:

1 SECURE SITES

2 A SECURE CONNECTION

3 TERMS Secure Sockets Layer (SSL) An older Internet protocol that allows for data transmission between server and client through a secure connection Transport Layer Security (TLS) A newer protocol for transferring data via a secure connection. Often referred to as SSL Secure connection The browser encrypts data being sent to the server and the server then decrypts it The server encrypts data being sent to the browser and the browser then decrypts it

4 HOW AUTHENTICATION WORKS Authentication is the process of determining whether a server or client is who and what it claims to be. When a browser makes an initial attempt to communicate with a server over a secure connection, the server authenticates itself by providing a digital secure certificate. If the digital secure certificate is registered with the browser, the browsers won’t display the certificate by default. However, the user still has the option to view the certificate.

5 DIGITAL SECURE CERTIFICATES Authorities that issue digital secure certificates: www.verisign.com www.thawte.com www.geotrust.com www.instantssl.com www.entrust.com

6 THE PROCESS 1.The person/company desiring a digital secure certificate provides necessary information to a registration authority (RA) 2.The RA verifies the information and approves the request. 3.The certificate authority (CA) issues the secure certificate 4.The certificate is then sent to the web host for installation

7 SSL STRENGTH Refers to the length of the generated key that is created during encryption Stronger security costs more 40-bit 56-bit 128-bit *typical SSL strength for collecting personal information 256-bit

8 URLS FOR SECURE CONNECTIONS Request a secure connection https://www.site.com/ or https://localhost/folder/ Return to a regular connection http://www.site.com/ or http://localhost/folder/

9 THE $_SERVER ARRAY A utility file that redirects to a secure connection <?php // make sure the page uses a secure connection if (!isset($_SERVER['HTTPS'])) { $url = 'https://'. $_SERVER['HTTP_HOST']. $_SERVER['REQUEST_URI']; header("Location: ". $url); exit(); } ?>

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