1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
|
// Copyright 2022 The Sigstore Authors.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package signer
import (
"bytes"
"context"
"crypto"
"crypto/rand"
"crypto/sha256"
"testing"
"github.com/sigstore/sigstore/pkg/signature"
"github.com/sigstore/sigstore/pkg/signature/options"
"github.com/sigstore/timestamp-authority/pkg/x509"
)
func TestNewTimestampingCertWithChain(t *testing.T) {
ctx := context.Background()
signer, err := NewCryptoSigner(ctx, crypto.Hash(0), "memory", "", "", "", "", "", "")
if err != nil {
t.Fatalf("new signer: %v", err)
}
payload := []byte("payload")
h := sha256.Sum256(payload)
sig, err := signer.Sign(rand.Reader, h[:], nil)
if err != nil {
t.Fatalf("signing payload: %v", err)
}
// create and verify the certificate chain
certChain, err := NewTimestampingCertWithChain(signer)
if err != nil {
t.Fatalf("generating timestamping cert: %v", err)
}
if len(certChain) != 3 {
t.Fatalf("expected 3 certificates in chain, got %d", len(certChain))
}
// verify that certificate can verify signature
pkCert := certChain[0].PublicKey
verifier, err := signature.LoadVerifier(pkCert, crypto.SHA256)
if err != nil {
t.Fatalf("initializing verifier: %v", err)
}
if err := verifier.VerifySignature(bytes.NewReader(sig), bytes.NewReader(payload), options.WithContext(ctx)); err != nil {
t.Fatalf("failed to verify signature: %v", err)
}
// verify that VerifyCertChain will successfully verify the chain
if err := x509.VerifyCertChain(certChain, signer); err != nil {
t.Fatalf("failed to verify certificate chain: %v", err)
}
}
|
