ruby uuid
require 'securerandom' SecureRandom.uuid #=> "2d931510-d99f-494a-8c67-87feb05e1594" SecureRandom.uuid #=> "bad85eb9-0713-4da7-8d36-07a8e4b00eab" # UUID stands for Universally Unique IDentifier. # It's a 128-bit value used for a unique identification in software # development. UUID is the same as GUID (Microsoft) and is part of the # Distributed Computing Environment (DCE), standardized by the Open # Software Foundation (OSF). As mentioned, they are intended to have a # high likelihood of uniqueness over space and time and are computationally # difficult to guess. It's generation is based on the current timestamp and # the unique property of the workstation that generated the UUID.
