AES encryption on Android

I have a fairly simple project to complete for iOS and Android, but I’m required to encrypt data locally on the device. Of all the Xojo targets, I have by far the least experience with Android, and I’m surprised to see that most of the Crypto module hasn’t been implemented for Android. With no plugins possible on Android, what are my options here? If it’s “make a Kotlin library”, I’m not sure I want to learn Kotlin just for that.

It’s odd, because the Crypto module uses the Crypto++ library and their website suggests it can be built for Android: Android.mk - Crypto++ Wiki

This is out of my depth so I’m speculating, but maybe the way Xojo have implemented the Android builds means it’s not possible to use it this way. But if it just hasn’t been implemented, perhaps it’s possible to include an android build of the library and call the functions yourself via declares?

I have a premium module that will be available for aes ecryption for my xojo fpdf port
it is already working for all platforms. just figuring the licence scheme…

I did not try to compile for android but as it is pure xojo code it should work.
ps: it is aes 128 and 256 only.