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22 lines
314 B
22 lines
314 B
3 years ago
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package crypto
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import (
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"bufio"
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"crypto/rand"
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"io"
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"sync"
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)
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var defaultRand struct {
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sync.Once
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reader io.Reader
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}
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// DefaultRand returns default entropy source.
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func DefaultRand() io.Reader {
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defaultRand.Do(func() {
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defaultRand.reader = bufio.NewReaderSize(rand.Reader, 1024)
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})
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return rand.Reader
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}
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