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RichFelker's profile
Rich Felker
Rich Felker
Rich Felker
@RichFelker

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Rich Felker

@RichFelker

Yeah, I do @musllibc, FOSS & infosec stuff. But now is not the time for a mostly-/only-tech Twitter feed.

musl-libc.org
Joined March 2014

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    1. CopperheadOS‏ @CopperheadOS Mar 24
      Replying to @CopperheadOS @RichFelker and

      We have the option to have the user take a picture for us with their usual camera app (without needing the permission) to scan it from that. What we did before was spawning the external zxing app with users granting that the Camera permission instead. Wanted a better UX though.

      2 replies 0 retweets 0 likes
    2. Rich Felker‏ @RichFelker Mar 24
      Replying to @CopperheadOS @TheDaveCA @matthew_d_green

      Proper factorization would be requesting a QR scan and having a system service do it.

      2 replies 0 retweets 0 likes
    3. CopperheadOS‏ @CopperheadOS Mar 24
      Replying to @RichFelker @TheDaveCA @matthew_d_green

      This is essentially what spawning the zxing barcode scanner app does. If the stock OS had to bundle QR code scanning support in the Camera app, it could work without needing the zxing app. We didn't see an advantage to using zxing vs. requesting Camera ourselves + better UI.

      1 reply 0 retweets 0 likes
    4. CopperheadOS‏ @CopperheadOS Mar 24
      Replying to @CopperheadOS @RichFelker and

      The zxing app / libraries used to be an official Google project and they could have polished it up and put it into AOSP as a standard OS feature and required it for the OS camera app. Not sure why they let it bitrot as a near dead now independent project instead. *shrug*

      1 reply 0 retweets 0 likes
    5. CopperheadOS‏ @CopperheadOS Mar 24
      Replying to @CopperheadOS @RichFelker and

      Seems like Android 9.0 will have some kind of standard QR support but that might simply be as part of Play Services like so many other useful libraries are now, which is no use to us...

      1 reply 0 retweets 0 likes
    6. Rich Felker‏ @RichFelker Mar 24
      Replying to @CopperheadOS @TheDaveCA @matthew_d_green

      Time to get around to implementing fake Play Services...

      1 reply 0 retweets 1 like
    7. CopperheadOS‏ @CopperheadOS Mar 24
      Replying to @RichFelker @TheDaveCA @matthew_d_green

      Yeah, it's really hard to implement some parts of it like the computer vision parts with OCR, detection of different object types, etc. The easy parts are either stubbing out actual server-based services or making real clients to them like microG does for GCM, etc.

      1 reply 0 retweets 0 likes
    8. CopperheadOS‏ @CopperheadOS Mar 24
      Replying to @CopperheadOS @RichFelker and

      Also there's the VR / AR stuff now and maybe that will end up being important to people in the future. A large amount of that is open source in AOSP but there's a lot of fancy stuff that isn't. Maybe AR will become a killer feature for people, who knows.

      1 reply 0 retweets 0 likes
    9. CopperheadOS‏ @CopperheadOS Mar 24
      Replying to @CopperheadOS @RichFelker and

      We think of a lot of the research / work that we do as simply figuring out how to do things properly for some saner future system... but app layer is probably going to be needed in practice for a long time to use existing apps. Fancy new microkernel is easy vs. new app ecosystem.

      2 replies 0 retweets 0 likes
    10. Rich Felker‏ @RichFelker Mar 24
      Replying to @CopperheadOS @TheDaveCA @matthew_d_green

      I don't think ux for integrating legacy apps is that hard. When installing give user simple control (2-3 choices) for "do you want it to integrate with other apps?"

      1 reply 0 retweets 0 likes
      Rich Felker‏ @RichFelker Mar 24
      Replying to @RichFelker @CopperheadOS and

      For most apps the answer is just "no, not at all" and then you run it in a complete sandbox that looks like a fresh Android install with just one app.

      7:02 PM - 24 Mar 2018
      1 reply 0 retweets 0 likes
        1. New conversation
        2. CopperheadOS‏ @CopperheadOS Mar 24
          Replying to @RichFelker @TheDaveCA @matthew_d_green

          Having isolated profiles/workspaces can work well for that, which is something Android has today and just doesn't make convenient enough for it to be widely used for more than multi-user and work profiles.

          1 reply 0 retweets 0 likes
        3. CopperheadOS‏ @CopperheadOS Mar 24
          Replying to @CopperheadOS @RichFelker and

          People can just install the app in the profile where they want to run it, and as long as profiles are easy enough to use it should work well. Too inconvenient right now for most people / use cases.

          1 reply 0 retweets 0 likes
        4. CopperheadOS‏ @CopperheadOS Mar 24
          Replying to @CopperheadOS @RichFelker and

          Apps can't communicate / share data across profiles unless they do it via the network, etc. It could be reinforced with a VM instead of just being on top of the same Linux kernel with SELinux (MLS is used as an extra layer for multi-user) + seccomp-bpf.

          2 replies 0 retweets 0 likes
        5. Rich Felker‏ @RichFelker Mar 24
          Replying to @CopperheadOS @TheDaveCA @matthew_d_green

          The OS we eventually end up with should be something like Qubes with UI tailored for mobile, and largely-virtualized Android just as a guest.

          1 reply 0 retweets 0 likes
        6. CopperheadOS‏ @CopperheadOS Mar 24
          Replying to @RichFelker @TheDaveCA @matthew_d_green

          Yeah, that's what we want in the long-term, but we'll still need to do substantial hardening for the Linux kernel, Android and the app layer since the security of the guests / apps matters too.

          1 reply 0 retweets 0 likes
        7. CopperheadOS‏ @CopperheadOS Mar 24
          Replying to @CopperheadOS @RichFelker and

          It'd be really neat to have something like Microsoft's Linux and cancelled Android app layer on top of a nice microkernel. Could run multiple instances of it, avoiding needing the whole Linux kernel running in each VM.

          2 replies 0 retweets 0 likes
        8. Rich Felker‏ @RichFelker Mar 24
          Replying to @CopperheadOS @TheDaveCA @matthew_d_green

          That's something vaguely like what I'll be doing once somebody wants to fund it..

          1 reply 0 retweets 1 like
        9. CopperheadOS‏ @CopperheadOS Mar 24
          Replying to @RichFelker @TheDaveCA @matthew_d_green

          Really want generic mobile hardware with standard security features (verified boot, hardware key derivation and delays) that doesn't cost $649+ like Pixels. It really feels like we have to raise a huge amount of money and make it ourselves.

          1 reply 0 retweets 1 like
        10. 2 more replies

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