Secure Android ROM
XDA-Developers Thread: http://forum.xda-developers.com/showthread.php?t=2317794
Guardian ROM is a custom android ROM for Galaxy Nexus and Nexus 4 devices. The ROM is completely Open Source and based off of the Android Open Source Project. The ROM aims to due the following:
Secure/Harden the android kernel with GRSecurity
Remove uneeded/Insecure binaries (Similar to SecDroid)
Replace insecure Text Messaging app with TextSecure
Include apps from the Guardian Project Installer (Optional add-on)
Include support for SQLCipher
Change Android Full Disk Encryption from AES-128 to AES-256 for more security
Allow for seperate Login and boot passwords
All of these have been completed except the final three which are underway but will take much more time.
