How to sign PGP keys with an offline master key
Signing other people keys with an offline master key is not super straightforward. Here's how to do it in an almost pain-free way.
Posts in 'cryptography'
How to create a GPG key with subkeys
A step by step guide for creating a GPG key with subkeys.
Some great reading resources about GPG
A bunch of pretty awesome reading resources about GPG and cryptography.
How to encrypt a removable disk in Ubuntu 14.04
Most of the guides on how to encrypt a removable disk in Ubuntu still refer to Ubuntu 12.04. Here's how to do it in Ubuntu 14.04 and to cope with the changes it introduces to the disks manager tool.