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23 lines
472 B
Go
23 lines
472 B
Go
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package mox
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import (
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cryptorand "crypto/rand"
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"encoding/binary"
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"fmt"
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mathrand "math/rand"
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)
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// NewRand returns a new PRNG seeded with random bytes from crypto/rand.
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func NewRand() *mathrand.Rand {
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return mathrand.New(mathrand.NewSource(cryptoRandInt()))
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}
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func cryptoRandInt() int64 {
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buf := make([]byte, 8)
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_, err := cryptorand.Read(buf)
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if err != nil {
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panic(fmt.Errorf("reading random bytes: %v", err))
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}
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return int64(binary.LittleEndian.Uint64(buf))
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}
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