Understanding SSL-CERTIFICATES
SSL-CERTIFICATES are digital credentials that provide authentication for a website and enable an encrypted connection. These certificates communicate to the BROWSER that the WEBSERVER is legitimate and that the data transmitted between the two remains private. While the technology is commonly referred to as SSL (Secure Sockets Layer), most modern implementations actually utilize the TLS (Transport Layer Security) protocol for enhanced security.
The primary function of SSL-CERTIFICATES is to protect sensitive information such as login credentials, personal identification, and financial transactions. According to documentation from DigiCert, the certificate works through PUBLIC-KEY-INFRASTRUCTURE, which uses a pair of keys: a private key kept securely on the server and a public key distributed via the certificate. This system ensures that only the intended recipient can decrypt the data sent across the INTERNET.
To obtain a certificate, a website owner must go through a CERTIFICATE-AUTHORITY. This third-party entity verifies the identity of the applicant. There are several levels of validation, including Domain Validation (DV), Organization Validation (OV), and Extended Validation (EV). As highlighted by Let's Encrypt, the move toward universal encryption has been accelerated by the availability of free, automated SSL-CERTIFICATES, making HTTPS the standard for all web traffic. Failure to implement these certificates often results in browsers displaying security warnings to users, as noted in resources by Cloudflare.