Certificate pinning in Android 4.2

Sample code for the 'Certificate pinning in Android 4.2' article at

http://nelenkov.blogspot.com/2012/12/certificate-pinning-in-android-42.html

How to use:

N.B. The app needs system permissions so it needs to be installed on a rooted device or the emulator.

WARNING Using it incorrectly may mess up certificate validation on your device, making it impossible to connect to certain (or all) secure sites. Do take a full system backup before using and proceed with caution. Do read the associated article to make sure you understand what the app does.

1. Import in Eclipse and build (requires API level 17 build target and a recent ADT version).
2. Mount the /system partition of your test device rw if necessary:

  $ su
  # mount -o rw,remount /system

3. Sign and export the app into this directory.
4. Run run.su to install and start on the device.
5. Explore.