Radwin Ltd. AMWL1540C 用户手册

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页码 126
 
Chapter 7
 
Security 
WinLink™ 1000’s integrated advanced encryption support provides 
enhanced air interface security for carriers and private networks by 
ensuring user data protection with one of the most sophisticated 
commercially available combined encryption and authentication 
techniques, CCM/AES. This technique combines message 
authentication (preventing anti-spoofing and replay protection) with 
commercial encryption, and complies with the IEEE 802.11i (phase iii) 
security recommendations.  
CCM/AES uses a symmetric 128-bit encryption key (EK), and a nonce, 
and provides both message encryption and authenticating signature. 
The nonce mechanism enables the receiver to remember already 
received genuine messages and reject all replayed messages. 
Initial encryption and authentication is based on a user-defined master 
key (Link Password). While standard Wireless LAN encrypts only the 
Ethernet Payload, the AES encrypts both the source and destination 
MAC addresses.  
Entering and Changing Passwords 
There are two passwords necessary to use the WinLink system:  
•  Management Password required for running the Management 
software 
•  Link Password used for encryption purposes. This link 
password is entered when installing or configuring the link. 
Changing the Management Password 
Æ  To change the management password 
1.  From the Tools menu, select Change Password. 
The Change Password dialog box appears. 
2.  Enter the current password, and the new password. 
3.  Click OK to confirm.