The SSL certificate uses the SSL protocol, and the SSL handshake is the most important part of the SSL protocol . The SSL handshake involves algorithm protocol, certificate exchange, and key exchange using shared algorithms. Therefore, the SSL handshake is the name of a securely designed process that helps to encrypt client-server communication with an encryption key. These keys are exchanged between the server and the client using one of two shared algorithms mutually agreed by both the server and the client. Therefore, if any failure occurs during this process, an SSL handshake failure error will be displayed. What are the solutions for SSL handshake failure?
1. Check the time and date of the system
If the system time and date are set incorrectly, the SSL handshake will fail. The solution at this time is to set the correct system time and date. Windows users can reset the date and time in the following ways:
1) Click the "Windows" button.
2) Enter "Date and Time Settings", and then select related options.
3) If you want to automatically set the time, please switch the "Automatically set time" button.
4) If you use a VPN or want to manually set the time for any other reason, please click the "Manually set date and time" option.
2. Web browser needs to be updated
At all times, you must keep the operating system and applications up to date. This alone can prevent many errors, including the "SSL handshake failed" error. Chrome users can check by opening the Chrome browser and clicking the three vertical dots in the upper right corner. Next, click on "More Tools", if your Chrome browser needs to be updated, you can find one here. Otherwise, it only means that your Chrome browser is up to date.
3. Disable recently installed plugins or extensions
Most browser plug-ins and extensions come from unknown developers and are likely to contain malicious code. Therefore, if you have installed one of them recently and encountered an SSL handshake error, please try to uninstall it and clear the cache and cookies. After you have done this, try to reconnect to the same website and check if you can now establish a secure connection.
4. The protocol does not match
Many people face SSL handshake problems due to the mismatch between the protocol between the server and the client. Basically, there are multiple versions of the SSL/TLS protocol available, and for a successful handshake, the web server and browser must support the same version, which is very important.
Usually, when the protocol version of the server is much higher than that of the client computer, an SSL handshake error will occur. For example, if the server uses TLS 1.3 version and the browser uses TLS 1.1, the SSL handshake is likely to fail because the server does not support the previous version. You can solve this problem by resetting your browser to default settings and using a browser without any extension.
The above are the reasons and solutions for common SSL handshake failures. There is another reason related to the server. If the SSL certificate is not installed correctly, it will also cause the SSL handshake failure. In this case, you can contact the CA to find an effective solution. Program.