remove exp/rand

Author: sukunrt

Diff for: go.mod

@@ -62,7 +62,6 @@ require (
 	go.uber.org/mock v0.5.0
 	go.uber.org/zap v1.27.0
 	golang.org/x/crypto v0.33.0
-	golang.org/x/exp v0.0.0-20250210185358-939b2ce775ac
 	golang.org/x/sync v0.11.0
 	golang.org/x/sys v0.30.0
 	golang.org/x/tools v0.30.0
@@ -127,6 +126,7 @@ require (
 	github.com/wlynxg/anet v0.0.5 // indirect
 	go.uber.org/dig v1.18.0 // indirect
 	go.uber.org/multierr v1.11.0 // indirect
+	golang.org/x/exp v0.0.0-20250210185358-939b2ce775ac // indirect
 	golang.org/x/mod v0.23.0 // indirect
 	golang.org/x/net v0.35.0 // indirect
 	golang.org/x/text v0.22.0 // indirect

Diff for: p2p/protocol/autonatv2/autonat.go

@@ -8,6 +8,8 @@ import (
 	"sync"
 	"time"
 
+	"math/rand/v2"
+
 	logging "github.com/ipfs/go-log/v2"
 	"github.com/libp2p/go-libp2p/core/event"
 	"github.com/libp2p/go-libp2p/core/host"
@@ -16,7 +18,6 @@ import (
 	"github.com/libp2p/go-libp2p/p2p/protocol/autonatv2/pb"
 	ma "github.com/multiformats/go-multiaddr"
 	manet "github.com/multiformats/go-multiaddr/net"
-	"golang.org/x/exp/rand"
 )
 
 const (
@@ -211,7 +212,7 @@ func (p *peersMap) GetRand() peer.ID {
 	if len(p.peers) == 0 {
 		return ""
 	}
-	return p.peers[rand.Intn(len(p.peers))]
+	return p.peers[rand.IntN(len(p.peers))]
 }
 
 func (p *peersMap) Put(pid peer.ID) {

Diff for: p2p/protocol/autonatv2/client.go

@@ -8,13 +8,14 @@ import (
 	"sync"
 	"time"
 
+	"math/rand/v2"
+
 	"github.com/libp2p/go-libp2p/core/host"
 	"github.com/libp2p/go-libp2p/core/network"
 	"github.com/libp2p/go-libp2p/core/peer"
 	"github.com/libp2p/go-libp2p/p2p/protocol/autonatv2/pb"
 	"github.com/libp2p/go-msgio/pbio"
 	ma "github.com/multiformats/go-multiaddr"
-	"golang.org/x/exp/rand"
 )
 
 // client implements the client for making dial requests for AutoNAT v2. It verifies successful

Diff for: p2p/transport/webrtc/transport.go

@@ -9,13 +9,13 @@ import (
 	"crypto/elliptic"
 	"crypto/rand"
 	"crypto/x509"
-	"encoding/binary"
 	"errors"
 	"fmt"
 	"net"
 	"time"
 
-	mrand "golang.org/x/exp/rand"
+	mrand "math/rand/v2"
+
 	"google.golang.org/protobuf/proto"
 
 	"github.com/libp2p/go-libp2p/core/connmgr"
@@ -420,15 +420,15 @@ func genUfrag() string {
 		uFragLength   = len(uFragPrefix) + uFragIdLength
 	)
 
-	seed := [8]byte{}
+	seed := [32]byte{}
 	rand.Read(seed[:])
-	r := mrand.New(mrand.NewSource(binary.BigEndian.Uint64(seed[:])))
+	r := mrand.New(mrand.New(mrand.NewChaCha8(seed)))
 	b := make([]byte, uFragLength)
 	for i := 0; i < len(uFragPrefix); i++ {
 		b[i] = uFragPrefix[i]
 	}
 	for i := len(uFragPrefix); i < uFragLength; i++ {
-		b[i] = uFragAlphabet[r.Intn(len(uFragAlphabet))]
+		b[i] = uFragAlphabet[r.IntN(len(uFragAlphabet))]
 	}
 	return string(b)
 }