In the WiFi access to identity security certification, a combination of digital certificates is recognized as a higher level of security and is widely applied to high-security access scenarios in enterprises and institutions. 802.1X effectively prevents unauthorized equipment from accessing the network by authenticating ports before an IP address is acquired at the end, and together with certification. This refers to the security mechanism for authentication of 802.1X certificates and why it is safe.
802.1X Basic mechanisms for accreditation
802.1X is a port-based access control protocol, and its core logic is that"Authentication, then Internet access.". The 802.1X protocol first IDs the terminal after the port or wireless AP for the terminal access switch, and before authentication passes, only the relevant channel is open for authentication, with no other traffic released; after certification is passed, the port is cleared"Open"The end-user is connected to the Internet. This mechanism is guaranteed from the source."Without the identification equipment, there's no access to the network."802.1X supports various authentication methods such as account passwords, certificates and the like in conjunction with the EAP certification framework.
Certificate authentication: Why is it safer than passwords
The security comes from several aspects when digital certificates are authenticated in 802.1X. First, the certificate is a series of digital vouchers signed by the issuing authority that prove that they are not valid for the purpose of certification."The device/user identification has been confirmed by the authority.", which cannot be forged and tampered with; secondly, the certificate certification process does not transmit passwords but is performed through public key encryption and digital signatures, and even if communications are intercepted, the aggressor does not have available documents; again, the certificate has a validity period that requires regular updating, expiry of time, thus avoiding the risk of long-term immobilization of passwords."You can get it if you know the code.", the certificate is certified"You can only get a legal certificate."And security is a measure.
Mutual authentication: end-to-network and network identification
Another security advantage of 802.1X certification is to support mutual authentication. Not only do the network have to verify the identity of the terminal, but the terminals can also verify its authenticity by confirming that they are connected to a formal authentication server rather than to fishing hot spots.——Even if the attackers have a hot spot with the same name, they cannot forge a legal certificate and the terminal refuses to connect."One-way restricted."But..."Identification of the parties"The credible handshake significantly reduced the risk of attacks by intermediaries.
Elements of 802.1X certification deployed
The deployment of 802.1X certification requires planning several elements: a system for the issuance of certificates to equip or dock them for equipment and users; installation of 802.1X and EAP on wireless controllers, switches and docking authentication servers; distribution of certificates to terminals and access parameters to ensure that they can properly be certified; management of the certificate throughout its life cycle, including issuance, updating, revocation. 802.1X has certain requirements for terminals, while some old equipment or equipment not supporting 802.1X needs to be matched with other authentication methods. Deployment, although complex, is worthwhile for high safety scenarios.
802.1X certificate certification site
802.1X certification is suitable for scenarios that are highly demanding for safety, such as the enterprise’s core business areas, R & D, finance, government agencies and related units, and finance."Who can access the network?"For ordinary office areas, the security and experience can be balanced by matching account codes or Seamless Authentication.
802.1 X certificate WiFi access security authentication mechanism with core"Authentication followed by access to the Internet, certification of identity, mutual authentication against counterfeiting, certificate life cycle management"It replaced the weak password with digital certificates, cut off counterfeit hotspots with two-way authentication, and ensured that uncertified equipment could not be accessed with port controls. While deployment costs are higher, 802.1X certification is one of WiFi’s most reliable access security certification options in high safety settings.