wireless key help needed

[msa27]

hello,
can any one help me to connect security enabled wireless network internet
in my area i can find some securitu neabled wireless connections but cant connect without key i try some softwares but not work please can any one provide me real working software and tutorial to find network key

i am very thankfull

 

[msa27]

how to find key for security enabled wireless

 

[msa27]

any one have tested software for this to find wpa key