Create an encrypted file system on Android with LUKS
[quote]LUKS is the standard for Linux hard disk encryption. By providing a standard on-disk-format, it not only facilitates compatibility among distributions, but also provides secure management of multiple user passwords.
Building off the work from other great sources, the Guardian Project hack team decided to take a crack at porting LUKS to Android recently, with the goal of creating a proof of concept build process that can be easily adapted to future projects.[/quote]
[url=http://guardianproject.info/2011/02/02/create-an-encrypted-file-system-on-android-w-luks/]Guardian Project: Create an encrypted file system on Android with LUKS[/url] (Febuary 2nd 2011)