I have successfully generated the fingerprint Certificate for google map key by using these command
keytool -list -alias androiddebugkey -keystore "C:\Users\pc\.android
\debug.keystore" -storepass android -keypass android
and i got this result
androiddebugkey, Aug 25, 2012, PrivateKeyEntry,
Certificate fingerprint (SHA1): 68:1F:B8:80:C0:B9:96:D1:6E:95:86:69:CD:DB:0E:28:DC:9E:89:51
when i try to register Certificate fingerprint on this site https://developers.google.com/android/maps-api-signup
page replied me The fingerprint you entered is not valid. Please press the Back button on your browser and enter a valid certificate fingerprint
where is problem please help.