Really heart warming to see your appreciation of our work on Krux!
About the app, it's very easy to install, just download the and install .apk file (and work around Android complains about not being known source)
Here's the link: https://github.com/odudex/krux_binaries/tree/main/Android
As the app intro screen says, it is intended for learning purposes.
https://github.com/odudex/krux/blob/develop_rc/docs/encrypted-qr-codes.en.md
The encryption for flash and SD card uses the same methods, but the data is available in json text format, so is even easier to know what to do to decrypt.
I have plans to do a simple python script to encrypt/decrypt krux mnemonics from json files and QR codes without the device(it would be very simple and straight forward). The Android app is also a good emergency item to have, specially for encrypted mnemonic QR codes, as they are interoperable between all devices.
It's a new and unique feature, and produces one more key to manage, so must be used with care.
Krux is currently going through a change right now, I'm updating the official repository(selfcustody) with all the features you see in beta, from my repository(odudex), and a new official release is about to be done. But if you're going to do a review please consult the updated documentation from here for now:
https://odudex.github.io/krux/getting-started/
Soon everything will be available on official repository:
https://selfcustody.github.io/krux/getting-started/
The feeling you described about Krux is the same I felt ever since I knew it. The hardware is very well suited for the application, the project architecture and structure were very well thought by Krux's creator, Jeff, and it has a lot of potential to improve.
About the app, it's very easy to install, just download the and install .apk file (and work around Android complains about not being known source)
Here's the link: https://github.com/odudex/krux_binaries/tree/main/Android
As the app intro screen says, it is intended for learning purposes.
Can any of you tell me about the encryption Krux uses for creating encrypted QR codes? Odudex, I hope you see this 
Krux uses standard AES encryption methods, a brief explanation of encrypted QR codes can be found here:https://github.com/odudex/krux/blob/develop_rc/docs/encrypted-qr-codes.en.md
The encryption for flash and SD card uses the same methods, but the data is available in json text format, so is even easier to know what to do to decrypt.
I have plans to do a simple python script to encrypt/decrypt krux mnemonics from json files and QR codes without the device(it would be very simple and straight forward). The Android app is also a good emergency item to have, specially for encrypted mnemonic QR codes, as they are interoperable between all devices.
It's a new and unique feature, and produces one more key to manage, so must be used with care.
Krux is currently going through a change right now, I'm updating the official repository(selfcustody) with all the features you see in beta, from my repository(odudex), and a new official release is about to be done. But if you're going to do a review please consult the updated documentation from here for now:
https://odudex.github.io/krux/getting-started/
Soon everything will be available on official repository:
https://selfcustody.github.io/krux/getting-started/
The feeling you described about Krux is the same I felt ever since I knew it. The hardware is very well suited for the application, the project architecture and structure were very well thought by Krux's creator, Jeff, and it has a lot of potential to improve.