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Merge pull request #1466 from libp2p/merge-tls
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move go-libp2p-tls here
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marten-seemann authored May 3, 2022
2 parents 7b47c4e + 27cfd3f commit bfe8265
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Showing 16 changed files with 1,174 additions and 7 deletions.
2 changes: 1 addition & 1 deletion defaults.go
Original file line number Diff line number Diff line change
Expand Up @@ -8,6 +8,7 @@ import (
"github.com/libp2p/go-libp2p/p2p/muxer/yamux"
"github.com/libp2p/go-libp2p/p2p/net/connmgr"
"github.com/libp2p/go-libp2p/p2p/security/noise"
tls "github.com/libp2p/go-libp2p/p2p/security/tls"
quic "github.com/libp2p/go-libp2p/p2p/transport/quic"
"github.com/libp2p/go-libp2p/p2p/transport/tcp"
ws "github.com/libp2p/go-libp2p/p2p/transport/websocket"
Expand All @@ -16,7 +17,6 @@ import (

"github.com/libp2p/go-libp2p-peerstore/pstoremem"
rcmgr "github.com/libp2p/go-libp2p-resource-manager"
tls "github.com/libp2p/go-libp2p-tls"
"github.com/multiformats/go-multiaddr"
)

Expand Down
4 changes: 2 additions & 2 deletions go.mod
Original file line number Diff line number Diff line change
Expand Up @@ -26,7 +26,6 @@ require (
github.com/libp2p/go-libp2p-pnet v0.2.0
github.com/libp2p/go-libp2p-resource-manager v0.2.1
github.com/libp2p/go-libp2p-testing v0.9.2
github.com/libp2p/go-libp2p-tls v0.4.1
github.com/libp2p/go-mplex v0.7.0
github.com/libp2p/go-msgio v0.2.0
github.com/libp2p/go-netroute v0.2.0
Expand All @@ -52,6 +51,7 @@ require (
github.com/whyrusleeping/multiaddr-filter v0.0.0-20160516205228-e903e4adabd7
golang.org/x/crypto v0.0.0-20220411220226-7b82a4e95df4
golang.org/x/sync v0.0.0-20210220032951-036812b2e83c
golang.org/x/sys v0.0.0-20220412211240-33da011f77ad
)

require (
Expand Down Expand Up @@ -82,6 +82,7 @@ require (
github.com/libp2p/go-libp2p-blankhost v0.3.0 // indirect
github.com/libp2p/go-libp2p-quic-transport v0.17.0 // indirect
github.com/libp2p/go-libp2p-swarm v0.10.2 // indirect
github.com/libp2p/go-libp2p-tls v0.4.1 // indirect
github.com/libp2p/go-libp2p-transport-upgrader v0.7.1 // indirect
github.com/libp2p/go-libp2p-yamux v0.9.1 // indirect
github.com/libp2p/go-nat v0.1.0 // indirect
Expand Down Expand Up @@ -117,7 +118,6 @@ require (
go.uber.org/zap v1.21.0 // indirect
golang.org/x/mod v0.6.0-dev.0.20220106191415-9b9b3d81d5e3 // indirect
golang.org/x/net v0.0.0-20220418201149-a630d4f3e7a2 // indirect
golang.org/x/sys v0.0.0-20220412211240-33da011f77ad // indirect
golang.org/x/tools v0.1.10 // indirect
golang.org/x/xerrors v0.0.0-20220411194840-2f41105eb62f // indirect
google.golang.org/grpc v1.45.0 // indirect
Expand Down
7 changes: 7 additions & 0 deletions p2p/security/tls/LICENSE.md
Original file line number Diff line number Diff line change
@@ -0,0 +1,7 @@
Copyright 2018 Marten Seemann

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
6 changes: 6 additions & 0 deletions p2p/security/tls/cmd/README.md
Original file line number Diff line number Diff line change
@@ -0,0 +1,6 @@
# TLS handshake example

Run
```bash
go run cmd/tlsdiag.go server
```
33 changes: 33 additions & 0 deletions p2p/security/tls/cmd/tlsdiag.go
Original file line number Diff line number Diff line change
@@ -0,0 +1,33 @@
package main

import (
"fmt"
"os"

"github.com/libp2p/go-libp2p/p2p/security/tls/cmd/tlsdiag"
)

func main() {
if len(os.Args) <= 1 {
fmt.Println("missing argument: client / server")
return
}

role := os.Args[1]
// remove the role argument from os.Args
os.Args = append([]string{os.Args[0]}, os.Args[2:]...)

var err error
switch role {
case "client":
err = tlsdiag.StartClient()
case "server":
err = tlsdiag.StartServer()
default:
fmt.Println("invalid argument. Expected client / server")
return
}
if err != nil {
panic(err)
}
}
63 changes: 63 additions & 0 deletions p2p/security/tls/cmd/tlsdiag/client.go
Original file line number Diff line number Diff line change
@@ -0,0 +1,63 @@
package tlsdiag

import (
"context"
"flag"
"fmt"
"io/ioutil"
"net"
"time"

libp2ptls "github.com/libp2p/go-libp2p/p2p/security/tls"

"github.com/libp2p/go-libp2p-core/peer"
)

func StartClient() error {
port := flag.Int("p", 5533, "port")
peerIDString := flag.String("id", "", "peer ID")
keyType := flag.String("key", "ecdsa", "rsa, ecdsa, ed25519 or secp256k1")
flag.Parse()

priv, err := generateKey(*keyType)
if err != nil {
return err
}

peerID, err := peer.Decode(*peerIDString)
if err != nil {
return err
}

id, err := peer.IDFromPrivateKey(priv)
if err != nil {
return err
}
fmt.Printf(" Peer ID: %s\n", id.Pretty())
tp, err := libp2ptls.New(priv)
if err != nil {
return err
}

remoteAddr := fmt.Sprintf("localhost:%d", *port)
fmt.Printf("Dialing %s\n", remoteAddr)
conn, err := net.Dial("tcp", remoteAddr)
if err != nil {
return err
}
fmt.Printf("Dialed raw connection to %s\n", conn.RemoteAddr())

ctx, cancel := context.WithTimeout(context.Background(), 10*time.Second)
defer cancel()
sconn, err := tp.SecureOutbound(ctx, conn, peerID)
if err != nil {
return err
}
fmt.Printf("Authenticated server: %s\n", sconn.RemotePeer().Pretty())
data, err := ioutil.ReadAll(sconn)
if err != nil {
return err
}
fmt.Printf("Received message from server: %s\n", string(data))
return nil
}
28 changes: 28 additions & 0 deletions p2p/security/tls/cmd/tlsdiag/key.go
Original file line number Diff line number Diff line change
@@ -0,0 +1,28 @@
package tlsdiag

import (
"crypto/rand"
"fmt"

ic "github.com/libp2p/go-libp2p-core/crypto"
)

func generateKey(keyType string) (priv ic.PrivKey, err error) {
switch keyType {
case "rsa":
fmt.Printf("Generated new peer with an RSA key.")
priv, _, err = ic.GenerateRSAKeyPair(2048, rand.Reader)
case "ecdsa":
fmt.Printf("Generated new peer with an ECDSA key.")
priv, _, err = ic.GenerateECDSAKeyPair(rand.Reader)
case "ed25519":
fmt.Printf("Generated new peer with an Ed25519 key.")
priv, _, err = ic.GenerateEd25519Key(rand.Reader)
case "secp256k1":
fmt.Printf("Generated new peer with an Secp256k1 key.")
priv, _, err = ic.GenerateSecp256k1Key(rand.Reader)
default:
return nil, fmt.Errorf("unknown key type: %s", keyType)
}
return
}
68 changes: 68 additions & 0 deletions p2p/security/tls/cmd/tlsdiag/server.go
Original file line number Diff line number Diff line change
@@ -0,0 +1,68 @@
package tlsdiag

import (
"context"
"flag"
"fmt"
"net"
"time"

libp2ptls "github.com/libp2p/go-libp2p/p2p/security/tls"

"github.com/libp2p/go-libp2p-core/peer"
)

func StartServer() error {
port := flag.Int("p", 5533, "port")
keyType := flag.String("key", "ecdsa", "rsa, ecdsa, ed25519 or secp256k1")
flag.Parse()

priv, err := generateKey(*keyType)
if err != nil {
return err
}

id, err := peer.IDFromPrivateKey(priv)
if err != nil {
return err
}
fmt.Printf(" Peer ID: %s\n", id.Pretty())
tp, err := libp2ptls.New(priv)
if err != nil {
return err
}

ln, err := net.Listen("tcp", fmt.Sprintf("localhost:%d", *port))
if err != nil {
return err
}
fmt.Printf("Listening for new connections on %s\n", ln.Addr())
fmt.Printf("Now run the following command in a separate terminal:\n")
fmt.Printf("\tgo run cmd/tlsdiag.go client -p %d -id %s\n", *port, id.Pretty())

for {
conn, err := ln.Accept()
if err != nil {
return err
}
fmt.Printf("Accepted raw connection from %s\n", conn.RemoteAddr())
go func() {
if err := handleConn(tp, conn); err != nil {
fmt.Printf("Error handling connection from %s: %s\n", conn.RemoteAddr(), err)
}
}()
}
}

func handleConn(tp *libp2ptls.Transport, conn net.Conn) error {
ctx, cancel := context.WithTimeout(context.Background(), 10*time.Second)
defer cancel()
sconn, err := tp.SecureInbound(ctx, conn, "")
if err != nil {
return err
}
fmt.Printf("Authenticated client: %s\n", sconn.RemotePeer().Pretty())
fmt.Fprintf(sconn, "Hello client!")
fmt.Printf("Closing connection to %s\n", conn.RemoteAddr())
return sconn.Close()
}
37 changes: 37 additions & 0 deletions p2p/security/tls/conn.go
Original file line number Diff line number Diff line change
@@ -0,0 +1,37 @@
package libp2ptls

import (
"crypto/tls"

ci "github.com/libp2p/go-libp2p-core/crypto"
"github.com/libp2p/go-libp2p-core/peer"
"github.com/libp2p/go-libp2p-core/sec"
)

type conn struct {
*tls.Conn

localPeer peer.ID
privKey ci.PrivKey

remotePeer peer.ID
remotePubKey ci.PubKey
}

var _ sec.SecureConn = &conn{}

func (c *conn) LocalPeer() peer.ID {
return c.localPeer
}

func (c *conn) LocalPrivateKey() ci.PrivKey {
return c.privKey
}

func (c *conn) RemotePeer() peer.ID {
return c.remotePeer
}

func (c *conn) RemotePublicKey() ci.PubKey {
return c.remotePubKey
}
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