What are Security Certificate Files?

Security Certificate Files ensure that all communications on that particular website/connection are secured using a public key infrastructure. This is done through the use of small data files, known as Security Certificates or SSL (Secure Sockets Layer) Certificates, that digitally associate an organization's details together with a cryptography key. They are then installed on web servers, initiating a secure connection between the web server and browsers over the HTTPS protocol.

Most websites today are secure and have a Security Certificate (SSL) installed. You can check if a site ensures secure communication through its web address, it should have an extra “S” after the HTTP. For example, “https://www.google.com/” is a secure website.

Popular Security Certificate File Extensions

CRT — Files with the “.CRT” extension are digital certificate files used by web browsers and are used to ensure that a web browser uses a Secure Sockets Layer protocol to communicate with the web server. Web browsers can automatically detect CRT files and you can check a website's CRT file by clicking on the green lock icon beside the website's address in the address bar. Distributed by a “Certificate Authority”, their purpose is to verify a website's authenticity using cryptography.

What are Security Certificate Files?

Popular Security Certificate File Extensions

File Database Breakdown - Security Certificate File Extensions

37

Top Security Certificate File Extensions