99 lines
2.7 KiB
Go
99 lines
2.7 KiB
Go
// Copyright (c) 2022 Tailscale Inc & AUTHORS All rights reserved.
|
|
// Use of this source code is governed by a BSD-style
|
|
// license that can be found in the LICENSE file.
|
|
|
|
package tka
|
|
|
|
import (
|
|
"bytes"
|
|
"crypto/ed25519"
|
|
"encoding/binary"
|
|
"math/rand"
|
|
"testing"
|
|
|
|
"tailscale.com/types/key"
|
|
"tailscale.com/types/tkatype"
|
|
)
|
|
|
|
// returns a random source based on the test name + extraSeed.
|
|
func testingRand(t *testing.T, extraSeed int64) *rand.Rand {
|
|
var seed int64
|
|
if err := binary.Read(bytes.NewBuffer([]byte(t.Name())), binary.LittleEndian, &seed); err != nil {
|
|
panic(err)
|
|
}
|
|
return rand.New(rand.NewSource(seed + extraSeed))
|
|
}
|
|
|
|
// generates a 25519 private key based on the seed + test name.
|
|
func testingKey25519(t *testing.T, seed int64) (ed25519.PublicKey, ed25519.PrivateKey) {
|
|
pub, priv, err := ed25519.GenerateKey(testingRand(t, seed))
|
|
if err != nil {
|
|
panic(err)
|
|
}
|
|
return pub, priv
|
|
}
|
|
|
|
func TestVerify25519(t *testing.T) {
|
|
pub, priv := testingKey25519(t, 1)
|
|
key := Key{
|
|
Kind: Key25519,
|
|
Public: pub,
|
|
}
|
|
|
|
aum := AUM{
|
|
MessageKind: AUMRemoveKey,
|
|
KeyID: []byte{1, 2, 3, 4},
|
|
// Signatures is set to crap so we are sure its ignored in the sigHash computation.
|
|
Signatures: []tkatype.Signature{{KeyID: []byte{45, 42}}},
|
|
}
|
|
sigHash := aum.SigHash()
|
|
aum.Signatures = []tkatype.Signature{
|
|
{
|
|
KeyID: key.ID(),
|
|
Signature: ed25519.Sign(priv, sigHash[:]),
|
|
},
|
|
}
|
|
|
|
if err := signatureVerify(&aum.Signatures[0], aum.SigHash(), key); err != nil {
|
|
t.Errorf("signature verification failed: %v", err)
|
|
}
|
|
|
|
// Make sure it fails with a different public key.
|
|
pub2, _ := testingKey25519(t, 2)
|
|
key2 := Key{Kind: Key25519, Public: pub2}
|
|
if err := signatureVerify(&aum.Signatures[0], aum.SigHash(), key2); err == nil {
|
|
t.Error("signature verification with different key did not fail")
|
|
}
|
|
}
|
|
|
|
func TestNLPrivate(t *testing.T) {
|
|
p := key.NewNLPrivate()
|
|
pub := p.Public()
|
|
|
|
// Test that key.NLPrivate implements Signer by making a new
|
|
// authority.
|
|
k := Key{Kind: Key25519, Public: pub.Verifier(), Votes: 1}
|
|
_, aum, err := Create(&Mem{}, State{
|
|
Keys: []Key{k},
|
|
DisablementSecrets: [][]byte{bytes.Repeat([]byte{1}, 32)},
|
|
}, p)
|
|
if err != nil {
|
|
t.Fatalf("Create() failed: %v", err)
|
|
}
|
|
|
|
// Make sure the generated genesis AUM was signed.
|
|
if got, want := len(aum.Signatures), 1; got != want {
|
|
t.Fatalf("len(signatures) = %d, want %d", got, want)
|
|
}
|
|
sigHash := aum.SigHash()
|
|
if ok := ed25519.Verify(pub.Verifier(), sigHash[:], aum.Signatures[0].Signature); !ok {
|
|
t.Error("signature did not verify")
|
|
}
|
|
|
|
// We manually compute the keyID, so make sure its consistent with
|
|
// tka.Key.ID().
|
|
if !bytes.Equal(k.ID(), p.KeyID()) {
|
|
t.Errorf("private.KeyID() & tka KeyID differ: %x != %x", k.ID(), p.KeyID())
|
|
}
|
|
}
|