## UUID 
A universally unique identifier (UUID) is a 128-bit number used to identify
information in computer systems. The term globally unique identifier (GUID)
is also used.
This crate generates and inspects UUIDs based on
* [RFC 4122](http://tools.ietf.org/html/rfc4122)
* [DCE 1.1](https://pubs.opengroup.org/onlinepubs/9696989899/chap5.htm#tagcjh_08_02_01_01)
## Install
```TOML
[dependencies]
uuid-rs = { version = "0.2.4", feature = "rand" }
```
## Usage
```Rust
use uuid_rs::uuid_v4;
println!("{}", uuid_v4!())
```
## Security
Do not assume that UUIDs are hard to guess; they should not be used as security capabilities.