| // Copyright 2011 Google Inc. All rights reserved. |
| // Use of this source code is governed by a BSD-style |
| // license that can be found in the LICENSE file. |
| |
| package uuid |
| |
| import guuid "github.com/google/uuid" |
| |
| // NewRandom returns a Random (Version 4) UUID or panics. |
| // |
| // The strength of the UUIDs is based on the strength of the crypto/rand |
| // package. |
| // |
| // A note about uniqueness derived from the UUID Wikipedia entry: |
| // |
| // Randomly generated UUIDs have 122 random bits. One's annual risk of being |
| // hit by a meteorite is estimated to be one chance in 17 billion, that |
| // means the probability is about 0.00000000006 (6 × 10−11), |
| // equivalent to the odds of creating a few tens of trillions of UUIDs in a |
| // year and having one duplicate. |
| func NewRandom() UUID { |
| if gu, err := guuid.NewRandom(); err == nil { |
| return UUID(gu[:]) |
| } |
| return nil |
| } |
