Profile cover photo
Profile photo
Leland Smith
362 followers -
Geek, runner, reader, eater. Development and social good
Geek, runner, reader, eater. Development and social good

362 followers
About
Leland's posts

Post has attachment

Post has shared content
Secure/push messages in +CyanogenMod

We've been focusing on data security lately; +Steve Kondik got the ball rolling with Privacy Guard. And obviously, recent events have made privacy concerns a global discussion.

The Privacy Guard contribution is the philosophy I like to  to see in these types of data security implementations: seamless protection of the user data. If it's a pain to use, or if it breaks third party apps, it's going to be a negative experience, and we're doing it wrong.

One of the interesting developments of the past couple weeks is that iMessage, is not snoopable by a third party, not even Apple (or so they would have you believe ;).

Regardless of whether that is true; I love the design philosophy of iMessage: it works transparently, and encrypts the user's message between iOS users and fails over to SMS as needed. Frictionless.

I'd thrown a poll out there, to see what sort of cohesiveness +CyanogenMod  users have. Surprisingly high. Many +CyanogenMod  text a lot with other +CyanogenMod users.
https://www.evernote.com/shard/s63/sh/94c9d731-6540-430e-b401-c212f14428d7/fae4c3c7a114a957547a2d77c19e3323
(Which makes sense, as our growth to 7M users is entirely organic and word of mouth)

Anyways, TL;DR. I've built out a secure/push based messaging plugin for CyanogenMod. Messages between two CyanogenMod will be encrypted end to end and sent over GCM. It's built into the framework; so it works transparently, even with third party apps. (This is actually one of the cooler points IMO, and I do a lot of testing with GoSMS, etc)

It's basically PGP (encryption + authenticity) for text messages, built into the system.

There are two minor changes to the telephony and framework to support this:

Add Middleware hooks to IccSmsInterfaceManagerProxy. This allows a sent SMS message to be intercepted and rewritten or sent over another transport.
http://review.cyanogenmod.org/44464

Add other various framework support bits (new permissions). Grant system apps priority in case of ordered broadcast priority tie.
http://review.cyanogenmod.org/44545

Here's the source for the app/plugin, which is still under heavy development.
https://github.com/koush/PushSms

At this point, I'm looking to get some feedback, discussion, thoughts, etc on this project. Not ready for active testing yet.

Post has attachment
This is an excellent I/O so far

Post has shared content
Cynics don't always get it right, but when they do, they turn your anti-competitive Android app into a 1.5-star wasteland.

Back story: http://arstechnica.com/gadgets/2012/12/verizon-delays-approval-of-google-wallet-blesses-own-isis-payment-app/
Photo

Post has attachment

Post has attachment

Post has attachment

Post has attachment

Post has attachment

Post has attachment
Wait while more posts are being loaded