I'm going to create a server API, but I don't want to serve someone else except apks signed by my certificate, because my API need a lot of server resource. In my opinion, this kind of requirement is common. Finally, I found google's map api is design well. Google map api use a API key which link with the certificate of the app. If someone who don't have the original certificate, decompile the apk and change it, then the apk won't work.But I don't know how google verify the app certificate when apk call the map API. Or any other best pratice to do this.
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