TLSsertifikaatti

TLSsertifikaatti refers to a digital certificate in the Transport Layer Security (TLS) protocol, which is responsible for encrypting and securing online communications between a server and a client, typically a web browser and a web server.

These certificates are issued by a Certificate Authority (CA) and contain information that identifies the server or the organization operating it. This information includes the domain name, the organization name, and the location of the organization. The certificate also contains a public key that is used for encrypting and decrypting the data exchanged between the server and the client.

When a web browser attempts to connect to a secure website, it sends a request to the server, which responds with its TLS certificate. The browser then verifies the certificate by checking its validity, ensuring it matches the domain name of the website, and that it has not been revoked by the CA. If the browser trusts the certificate, it proceeds to establish a secure connection with the server.

TLSsertifikaattit are an essential part of establishing a secure connection between a server and a client over the internet. They are used extensively by websites that require secure authentication and encryption to prevent unauthorized access to sensitive data. The use of TLSsertifikaattit is mandated by law in many countries and is also a requirement by major credit card companies and other organizations.