Since several years, we have faced a “transparency campaign” on cryptography. That means that the cipher announces itself as an “encrypted container”. This suppose a serious risk by exposing you to a rubber-hose attack.
LUKS (Linux Unified Key Setup) which is used by common Linux distributions is not the exception. But there is a hope to provide some kind of privacy.
Continue reading LUKS: Plausible deniability on crypto containers
Linux have a set of many nice applications that could fit and run on your android device.
You can install ubuntu trusty on your android by creating an special partition on your external sdcard and installing the base system there. ** Your phone must be rooted ** preferable with cyanogenmod 11.
I developed an openvpn flasheable installer package for android. This OpenVPN, unlike others in the play store, have the capability to run entirely from a command line based interface. This option was included on CM10.2 but they have dropped it on CM11. Now you can use it again: