If you're in the US, or the place you're trying to distribute to is under US jurisdiction, the DMCA is what forbids you from distributing DRM decryption keys. That's why emulators for modern systems usually don't include the keys, and make the user provide their own copy of them.
Unfortunately if you want to publish on the App Store or the Play Store then you have to play by the US rules, regardless of where you are, since Apple and Google operate out of the US.
