For the benefit of others this is what i did for key generation,
Goto resources tab in appery platform
Export the certificate and save it locally
then run keytool -list -v -keystore
It will ask you for a password, enter the one that you used while generating the certificate in appery
If everything runs well you will see a 20 byte string, copy it and follow the steps in
https://code.google.com/apis/console under the "create new android key" tab.
The name of your package is available in the app settings in appery.
I scratched my head for some time to figure this.. so hope it helps...