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What is the difference between a TLS certificate and an SSL certificate?

TLS (Transport Layer Security) and SSL (Secure Sockets Layer) certificates are both cryptographic protocols designed to provide secure communication over the internet. The main difference lies in their version and security features.

SSL was the predecessor to TLS and was developed by Netscape in the mid-1990s. However, due to vulnerabilities and weaknesses, SSL has been largely replaced by TLS, which is a more secure and updated version. TLS 1.0 was introduced in 1999 as an upgrade to SSL 3.0, and subsequent versions (TLS 1.1, TLS 1.2, TLS 1.3) have been released to enhance security and performance.

For example, when you visit a website that uses HTTPS (Hypertext Transfer Protocol Secure), your browser and the website's server will establish a secure connection using either SSL or TLS certificates. If the website uses an outdated SSL certificate, your browser might display a warning message indicating that the connection is not secure.

In terms of cloud services, Tencent Cloud offers a variety of SSL/TLS certificates to ensure secure communication between clients and servers. These certificates can be purchased and managed through Tencent Cloud's Certificate Management Service (CMS), which simplifies the process of obtaining, deploying, and renewing certificates.

It's important to note that while SSL certificates are still recognized by some browsers and systems, it is highly recommended to use TLS certificates for all secure communications due to their enhanced security features.