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