Today let’s take an in-depth look at a series of important communication security protocols such as SSL, TLS and mTLS. Although this topic may not be critical from an overall system design perspective, it is still worth understanding in depth.
1. SSL protocol
SSL, or Secure Socket Layer, is a communication protocol designed to encrypt and protect the security of Internet communications. Although it first appeared in 1995, it has since been replaced by Transport Layer Security (TLS).
The emergence of SSL marks the focus on Internet communication security. In the early days, data on the Internet was transmitted in clear text, which made sensitive information vulnerable to eavesdropping and tampering. SSL effectively solves this problem by introducing powerful data encryption and authentication mechanisms, providing solid protection for user privacy and data integrity.
2. Why is it still called an SSL certificate?
Although SSL has been deprecated, most major certificate providers still refer to their certificates as SSL certificates. This is because legacy issues still exist when it comes to naming conventions. Additionally, many websites and systems still use SSL certificates, so this naming convention is still relevant.
3. Importance of SSL
The importance of SSL cannot be ignored. Its emergence has completely changed the security of Internet communications and fundamentally improved the security of data transmission. On the network, data can travel between thousands of nodes, and SSL encrypts the data stream to ensure that it is difficult to steal or tamper with the data even during transmission. This security provides a solid foundation for online banking, e-commerce, and a variety of other online applications.