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多选题
Which two statements best describe enhanced wireless security encryption？（）
A
TKIP protects RC4 encryption keys
B
CKIP and TKIP protect AES encryption keys
C
TKIP encryption is more processor intensive than AES encryption is
D
WPA requires TKIP encryption， whereas WPA2 supports AES encryption
E
WPA requires AES encryption， whereas WPA2 supports TKIP encryption
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