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|
package core
import (
"crypto/rand"
"encoding/binary"
"io"
mrand "math/rand"
"github.com/cloudflare/cfssl/log"
)
var seeded bool
func seed() error {
if seeded {
return nil
}
var buf [8]byte
_, err := io.ReadFull(rand.Reader, buf[:])
if err != nil {
return err
}
n := int64(binary.LittleEndian.Uint64(buf[:]))
mrand.Seed(n)
seeded = true
return nil
}
func init() {
err := seed()
if err != nil {
log.Errorf("seeding mrand failed: %v", err)
}
}
|
