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package main
import (
"bytes"
"encoding/binary"
"testing"
)
func assertNil(t *testing.T, err error) {
if err != nil {
t.Fatal(err)
}
}
func assertEqual(t *testing.T, a []byte, b []byte) {
if bytes.Compare(a, b) != 0 {
t.Fatal(a, "!=", b)
}
}
func TestCurveWrappers(t *testing.T) {
sk1, err := newPrivateKey()
assertNil(t, err)
sk2, err := newPrivateKey()
assertNil(t, err)
pk1 := sk1.publicKey()
pk2 := sk2.publicKey()
ss1 := sk1.sharedSecret(pk2)
ss2 := sk2.sharedSecret(pk1)
if ss1 != ss2 {
t.Fatal("Failed to compute shared secet")
}
}
func newDevice(t *testing.T) *Device {
var device Device
sk, err := newPrivateKey()
if err != nil {
t.Fatal(err)
}
device.Init()
device.SetPrivateKey(sk)
return &device
}
func TestNoiseHandshake(t *testing.T) {
dev1 := newDevice(t)
dev2 := newDevice(t)
peer1 := dev2.NewPeer(dev1.privateKey.publicKey())
peer2 := dev1.NewPeer(dev2.privateKey.publicKey())
assertEqual(
t,
peer1.handshake.precomputedStaticStatic[:],
peer2.handshake.precomputedStaticStatic[:],
)
/* simulate handshake */
// Initiation message
msg1, err := dev1.CreateMessageInitial(peer2)
assertNil(t, err)
packet := make([]byte, 0, 256)
writer := bytes.NewBuffer(packet)
err = binary.Write(writer, binary.LittleEndian, msg1)
peer := dev2.ConsumeMessageInitial(msg1)
if peer == nil {
t.Fatal("handshake failed at initiation message")
}
assertEqual(
t,
peer1.handshake.chainKey[:],
peer2.handshake.chainKey[:],
)
assertEqual(
t,
peer1.handshake.hash[:],
peer2.handshake.hash[:],
)
// Response message
}
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