Dot1x authentication-method

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Hi friend!
The EAP relay mode simplifies the processing on the access device and supports various authentication methods. However, the authentication server must support EAP and have high processing capability. The commonly used authentication modes include EAP-TLS, EAP-TTLS, and EAP-PEAP. EAP-TLS has the highest security because it requires a certificate to be loaded on both the client and authentication server. EAP-TTLS and EAP-PEAP are easier to deploy since the certificate needs to be loaded only on the authentication server, but not the client.
The EAP termination mode is advantageous in that mainstream RADIUS servers support Password Authentication Protocol (PAP) and Challenge Handshake Authentication Protocol (CHAP) authentication, eliminating the need for server upgrade. However, the workload on the access device is heavy because it needs to extract the client authentication information from the EAP packets sent by the client and encapsulate the information using the standard RADIUS protocol. In addition, the access device does not support other EAP authentication methods except MD5-Challenge. In CHAP authentication, passwords are transmitted in cipher text; in PAP authentication, passwords are transmitted in plain text. CHAP provides higher security and is recommended.
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Hi Hi

802.1X WPA is generally reserved for personal networks, such as your home Wi-Fi, and runs on RC4-based TKIP (Temporal Key Integrity Protocol) encryption. It’s less secure than WPA2, but usually sufficient for home use.

802.1X WPA2 could utilize TKIP, but generally chooses AES (Advanced Encryption Standard), which is the most secure standard available. It is a little more difficult and costly to set up, however, so it’s used in higher-stake environments like businesses.

https://www.securew2.com/wp-content/uploads/2020/02/802.1X-Diagram@2x.png

There are just a few components that are needed to make 802.1X work. Realistically, if you already have access points and some spare server space, you possess all the hardware needed to make secure wireless happen. Sometimes you don’t even need the server; some access points come with built-in software that can operate 802.1X (though only for the smallest of small deployments).

Regardless of whether you purchase professional solutions or build one yourself from open source tools, the quality and ease of 802.1X is entirely a design aspect.

more about the following source:

https://www.securew2.com/solutions/802-1x

Hello,
802.1X supports remote authentication, including RADIUS, HWTACACS, AD, and so on, and local authentication.
As for the most secure authentication mode, I don't think there is a most secure authentication mode. No matter RADIUS, HWTACACS, AD, or other authentication servers, they are enough secure for the authentication scenario, all you need to do is keep upgrade your authentication server and renew the password timely.