Authentication and User Management
14.5 Understanding Encryption Types
SCALANCE W1750D UI
Configuration Manual, 02/2018 , C79000-G8976-C451-02
221
WPA and WPA-2 can be further classified as follows:
●
—Personal is also called Pre-Shared Key (PSK). In this type, a unique key is
shared with each client in the network. Users have to use this key to securely log in to the
network. The key remains the same until it is changed by authorized personnel.
You can
also configure key change intervals .
●
—Enterprise is more secure than WPA Personal. In this type, every client
automatically receives a unique encryption key after securely logging in to the network.
This key is automatically updated at regular intervals. WPA uses TKIP and WPA-2 uses
the AES algorithm.
Recommended Authentication and Encryption Combinations
The following table summarizes the recommendations for authentication and encryption
combinations for the Wi-Fi networks.
Table 14- 3 Recommended Authentication and Encryption Combinations
Guest Network Captive portal None
Voice Network or Handheld
devices
802.1X or PSK as supported by
the device
AES if possible, TKIP or WEP if
necessary (combine with securi-
ty settings assigned for a user
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