fix RandTestKeyPair on windows

rargulati · Feb 1, 2018 · cc85f1c · cc85f1c
1 parent 76c5a8e
commit cc85f1c
Showing 1 changed file with 9 additions and 1 deletion.
diff --git a/test/utils.go b/test/utils.go
@@ -3,13 +3,16 @@ package testutil
 import (
 	"io"
 	"math/rand"
+	"sync/atomic"
 	"time"
 
 	ci "github.com/libp2p/go-libp2p-crypto"
 	peer "github.com/libp2p/go-libp2p-peer"
 	mh "github.com/multiformats/go-multihash"
 )
 
+var generatedPairs int64 = 0
+
 func RandPeerID() (peer.ID, error) {
 	r := rand.New(rand.NewSource(time.Now().UnixNano()))
 	buf := make([]byte, 16)
@@ -21,7 +24,12 @@ func RandPeerID() (peer.ID, error) {
 }
 
 func RandTestKeyPair(bits int) (ci.PrivKey, ci.PubKey, error) {
-	r := rand.New(rand.NewSource(time.Now().UnixNano()))
+	seed := time.Now().UnixNano()
+
+	// workaround for low time resolution
+	seed += atomic.AddInt64(&generatedPairs, 1) << 32
+
+	r := rand.New(rand.NewSource(seed))
 	return ci.GenerateKeyPairWithReader(ci.RSA, bits, r)
 }