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crypto/rand.Reader may not return all entropy immediately

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This commit is contained in:
Jakob Borg 2014-12-08 19:36:08 +01:00
parent 749bbec566
commit 957643f523
1 changed files with 2 additions and 1 deletions
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3
cmd/syncthing/random.go
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@ -19,6 +19,7 @@ import (
"crypto/md5" "crypto/md5"
cryptoRand "crypto/rand" cryptoRand "crypto/rand"
"encoding/binary" "encoding/binary"
"io"
mathRand "math/rand" mathRand "math/rand"
) )
@ -48,7 +49,7 @@ func randomString(l int) string {
// randomInt64 returns a strongly random int64, slowly // randomInt64 returns a strongly random int64, slowly
func randomInt64() int64 { func randomInt64() int64 {
var bs [8]byte var bs [8]byte
n, err := cryptoRand.Reader.Read(bs[:]) n, err := io.ReadFull(cryptoRand.Reader, bs[:])
if n != 8 || err != nil { if n != 8 || err != nil {
panic("randomness failure") panic("randomness failure")
} }