google Play商店是否加密？
Does google play store is encrypted?
我想知道，使用google play store mobile app 下载应用程序时，下载的数据是否加密？
如果是，从什么时候开始？
App Encryption
Starting with Android 4.1, Google Play will help protect application
assets by encrypting all paid apps with a device-specific key before
they are delivered and stored on a device.
参考：https://android.stackexchange.com/questions/32306/security-of-paid-apps-in-google-play
我想知道，使用google play store mobile app 下载应用程序时，下载的数据是否加密？
如果是，从什么时候开始？
App Encryption
Starting with Android 4.1, Google Play will help protect application assets by encrypting all paid apps with a device-specific key before they are delivered and stored on a device.
参考：https://android.stackexchange.com/questions/32306/security-of-paid-apps-in-google-play