问题：

[多选] Which two statements about the open and shared key wireless-authentication methods are true？（）

A . shared key authentication is considered more secure than open authentication
B . shared key authentication is considered less secure than open authentication
C . if the WEP keys do not match using the open authentication method， the client will not authenticate， associate， and transfer data
D . if the WEP keys do not match using the open authentication method， the client will still be able to authenticate and associate， but will not transfer data
E . if the WEP keys do not match using the open authentication method， the client will still be able to authenticate， associate， and transfer data