Secure Socket Layer (SSL)

SSL is a standard security protocol that establishes encrypted links between a web server and a browser.

Description

Secure Socket Layer (SSL) is a widely used security technology that encrypts the connection between a web server and a user's browser. This protocol ensures that sensitive information such as credit card numbers, login credentials, and personal data are transmitted securely over the internet. SSL works by using a combination of asymmetric cryptography for key exchange, symmetric encryption for data transmission, and message authentication codes for data integrity. It provides a layer of security that protects against eavesdropping, tampering, and forgery. SSL has been succeeded by Transport Layer Security (TLS), which is an updated version of SSL, but the term SSL is still commonly used. Websites that implement SSL can be identified by the “https” prefix in their URLs, along with a padlock icon in the browser's address bar. This indicates that the connection is secure and that users can trust the website with their information. Major companies like PayPal and Amazon utilize SSL to ensure secure transactions and build customer trust.

Examples

  • PayPal uses SSL to secure sensitive financial transactions on its platform.
  • Amazon implements SSL to protect user data during online shopping.

Additional Information

  • SSL certificates are issued by Certificate Authorities (CAs) to verify the identity of the website owner.
  • With the rise of cyber threats, SSL has become essential for any website that handles personal or financial information.

References