D-Link DWS-1008 Product Manual - Page 274
Managing Keys and Certificates, Wireless Security through TLS
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Managing Keys and Certificates A digital certificate is a form of electronic identification for computers.The switch requires digital certificates to authenticate its communications to Web View, to WebAAA clients, and to Extensible Authentication Protocol (EAP) clients for which the switch performs all EAP processing. Certificates can be generated on the switch or obtained from a certificate authority (CA). Keys contained within the certificates allow the switch, its servers, and its wireless clients to exchange information secured by encryption. Note: If the switch does not already have certificates, MSS automatically generates the missing ones the first time you boot using MSS Version 4.2 or later. You do not need to install certificates unless you want to replace the ones automatically generated by MSS. (For more information, see "Certificates Automatically Generated by MSS".) Note: Before installing a new certificate, verify with the show timedate and show timezone commands that the switch is set to the correct date, time, and time zone. Otherwise, certificates might not be installed correctly. Why Use Keys and Certificates? Certain switch operations require the use of public-private key pairs and digital certificates. All Web View users, and users for which the switch performs IEEE 802.1X EAP authentication or WebAAA, require public-private key pairs and digital certificates to be installed on the switch. These keys and certificates are fundamental to securing wireless, wired authentication, and administrative connections because they support Wi-Fi Protected Access (WPA) encryption and dynamic WiredEquivalency Privacy (WEP) encryption. Wireless Security through TLS In the case of wireless or wired authentication 802.1X users whose authentication is performed by the switch, the first stage of any EAP transaction is Transport Layer Security (TLS) authentication and encryption. Web View also require a session to the switch that is authenticated and encrypted by TLS. Once a TLS session is authenticated, it is encrypted. TLS allows the client to authenticate the switch (and optionally allows the switch to authenticate the client) through the use of digital signatures. Digital signatures require a public-private key pair. The signature is created with a private key and verified with a public key. TLS enables secure key exchange. D-Link DWS-1008 User Manual 255
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