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
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
|
package tpm
import (
"bytes"
"context"
"crypto"
"crypto/ecdsa"
"crypto/elliptic"
"crypto/rand"
"crypto/rsa"
"crypto/x509"
"encoding/base64"
"encoding/json"
"encoding/pem"
"errors"
"fmt"
"io"
"net/http"
"net/url"
"testing"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
"go.step.sm/crypto/keyutil"
"go.step.sm/crypto/minica"
"go.step.sm/crypto/x509util"
)
func Test_keyType(t *testing.T) {
r, err := rsa.GenerateKey(rand.Reader, 2048)
require.NoError(t, err)
require.Equal(t, "RSA 2048", keyType(r.Public()))
e, err := ecdsa.GenerateKey(elliptic.P256(), rand.Reader)
require.NoError(t, err)
require.Equal(t, "ECDSA P-256", keyType(e.Public()))
require.Equal(t, "unsupported public key type: <nil>", keyType(nil))
}
func TestEK_MarshalJSON(t *testing.T) {
ca, err := minica.New(
minica.WithGetSignerFunc(
func() (crypto.Signer, error) {
return keyutil.GenerateSigner("RSA", "", 2048)
},
),
)
require.NoError(t, err)
signer, err := keyutil.GenerateSigner("RSA", "", 2048)
require.NoError(t, err)
cr, err := x509util.NewCertificateRequest(signer)
require.NoError(t, err)
cr.Subject.CommonName = "testek"
csr, err := cr.GetCertificateRequest()
require.NoError(t, err)
cert, err := ca.SignCSR(csr)
require.NoError(t, err)
ek := &EK{
public: signer.Public(),
certificate: cert,
certificateURL: "https://certificate.example.com",
}
data, err := json.Marshal(ek)
require.NoError(t, err)
m := map[string]any{}
err = json.Unmarshal(data, &m)
require.NoError(t, err)
keyID, err := generateKeyID(signer.Public())
require.NoError(t, err)
fp := "sha256:" + base64.StdEncoding.EncodeToString(keyID)
fpURI := "urn:ek:" + fp
require.Equal(t, m["type"], "RSA 2048")
require.Equal(t, m["fingerprint"], fp)
require.Equal(t, m["fingerprintURI"], fpURI)
require.Equal(t, m["der"], base64.StdEncoding.EncodeToString(cert.Raw))
require.Equal(t, m["url"], "https://certificate.example.com")
}
type mockClient struct {
doFunc func(req *http.Request) (*http.Response, error)
}
// Do is the mock client's `Do` func
func (m *mockClient) Do(req *http.Request) (*http.Response, error) {
if m.doFunc != nil {
return m.doFunc(req)
}
return nil, errors.New("mocked doFunc not set")
}
func Test_downloader_downloadEKCertifiate(t *testing.T) {
t.Parallel()
client := &mockClient{
doFunc: func(req *http.Request) (*http.Response, error) {
switch {
case req.URL.String() == "https://ekop.intel.com/ekcertservice/WVEG2rRwkQ7m3RpXlUphgo6Y2HLxl18h6ZZkkOAdnBE%3D":
r := io.NopCloser(bytes.NewReader([]byte(intelEKMockResponse)))
return &http.Response{
StatusCode: 200,
Body: r,
}, nil
case req.URL.String() == "https://ftpm.amd.com/pki/aia/264D39A23CEB5D5B49D610044EEBD121":
b, err := base64.StdEncoding.DecodeString(amdEKRootMockResponse)
require.NoError(t, err)
r := io.NopCloser(bytes.NewReader(b))
return &http.Response{
StatusCode: 200,
Body: r,
}, nil
}
return nil, errors.New("unexpected URL")
},
}
tests := []struct {
name string
ctx context.Context
ekURL string
wantSubject string
wantErr bool
}{
{
name: "intel",
ctx: context.Background(),
ekURL: "https://ekop.intel.com/ekcertservice/WVEG2rRwkQ7m3RpXlUphgo6Y2HLxl18h6ZZkkOAdnBE%3D",
wantSubject: "", // no subject in EK certificate
wantErr: false,
},
{
name: "amd EK CA root",
ctx: context.Background(),
ekURL: "https://ftpm.amd.com/pki/aia/264D39A23CEB5D5B49D610044EEBD121", // assumes AMD EK certificate responses are all in the same format
wantSubject: "CN=AMDTPM,OU=Engineering,O=Advanced Micro Devices,L=Sunnyvale,ST=CA,C=US", // AMDTPM EK CA root subject
wantErr: false,
},
}
for _, tt := range tests {
tc := tt
t.Run(tt.name, func(t *testing.T) {
t.Parallel()
d := &downloader{enabled: true, maxDownloads: 10, client: client}
ekURL, err := url.Parse(tc.ekURL)
require.NoError(t, err)
got, err := d.downloadEKCertificate(tc.ctx, ekURL)
if (err != nil) != tc.wantErr {
t.Errorf("downloader.downloadEKCertifiate() error = %v, wantErr %v", err, tc.wantErr)
return
}
if assert.NoError(t, err) {
assert.NotNil(t, got)
assert.NotEmpty(t, got.Raw)
if got.Subject.String() != tc.wantSubject {
t.Errorf("downloader.downloadEKCertifiate() = %v, want %v", got.Subject.String(), tc.wantSubject)
}
}
})
}
}
const (
// JSON response for https://ekop.intel.com/ekcertservice/WVEG2rRwkQ7m3RpXlUphgo6Y2HLxl18h6ZZkkOAdnBE%3D; also see https://github.com/tpm2-software/tpm2-tools/blob/master/test/integration/tests/getekcertificate.sh
intelEKMockResponse = `{"pubhash":"WVEG2rRwkQ7m3RpXlUphgo6Y2HLxl18h6ZZkkOAdnBE%3D","certificate":"MIIEnDCCBEOgAwIBAgIEfT80-DAKBggqhkjOPQQDAjCBlTELMAkGA1UEBgwCVVMxCzAJBgNVBAgMAkNBMRQwEgYDVQQHDAtTYW50YSBDbGFyYTEaMBgGA1UECgwRSW50ZWwgQ29ycG9yYXRpb24xLzAtBgNVBAsMJlRQTSBFSyBpbnRlcm1lZGlhdGUgZm9yIFNQVEhfRVBJRF9QUk9EMRYwFAYDVQQDDA13d3cuaW50ZWwuY29tMB4XDTE1MDUyMjAwMDAwMFoXDTQ5MTIzMTIzNTk1OVowADCCASIwDQYJKoZIhvcNAQEBBQADggEPADCCAQoCggEBAMMg4vJEqGAarPPgHSbGZSSZNVYt4doZfp5_B2xGlhPPtlPpjsLDhvwdEz8sjGzDOLcy8LIIvYOKh3o-W7w-HUCE6DXHyJBqHAW00tMP2-vB262VD6axZb1LaoZGAxRhZMDE9Z1IkBHvH5KN7qbpAGHz03XlZGJzFR72IiUgmL4aSrAdwKEiJ8YJ_azrEVr0CNRpOm9JkZd0aVsMErwYof9xIKczey-18ZUdi7fwlNW1VMEclSOzByn-ZHh9ChO55jBIjatN_YZjSlJw7HL8xaRNxnmo8yk43YGX4p2ug59bTKD13ifJUiwjxU4cLOV4WVJRGL1EcLGBgO73iuQme80CAwEAAaOCAkgwggJEMA8GA1UdEwEB_wQFMAMBAQAwDgYDVR0PAQH_BAQDAgAgMBAGA1UdJQQJMAcGBWeBBQgBMCQGA1UdCQEBAAQaMBgwFgYFZ4EFAhAxDTALDAMyLjACAQACAWcwUAYDVR0RAQH_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_hIqpS6o150xAIgNxZNXq7bCqU1b4hGdiSBauowiOVFcaaiTm1p99H_k1Q%3D"}`
// base64 encoded response for https://ftpm.amd.com/pki/aia/264D39A23CEB5D5B49D610044EEBD121
amdEKRootMockResponse = `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`
)
func TestEK_FingerprintURI(t *testing.T) {
signer, err := keyutil.GenerateSigner("RSA", "", 2048)
require.NoError(t, err)
ek := &EK{
public: signer.Public(),
}
keyID, err := generateKeyID(signer.Public())
require.NoError(t, err)
exp := fmt.Sprintf("urn:ek:sha256:%s", base64.StdEncoding.EncodeToString(keyID))
u, err := ek.FingerprintURI()
assert.NoError(t, err)
assert.Equal(t, exp, u.String())
invalidEK := &EK{}
u, err = invalidEK.FingerprintURI()
assert.Error(t, err)
assert.Nil(t, u)
}
func TestEK_PEM(t *testing.T) {
ca, err := minica.New(
minica.WithGetSignerFunc(
func() (crypto.Signer, error) {
return keyutil.GenerateSigner("RSA", "", 2048)
},
),
)
require.NoError(t, err)
signer, err := keyutil.GenerateSigner("RSA", "", 2048)
require.NoError(t, err)
cr, err := x509util.NewCertificateRequest(signer)
require.NoError(t, err)
cr.Subject.CommonName = "testek"
csr, err := cr.GetCertificateRequest()
require.NoError(t, err)
cert, err := ca.SignCSR(csr)
require.NoError(t, err)
pemString := pem.EncodeToMemory(&pem.Block{
Type: "CERTIFICATE",
Bytes: cert.Raw,
})
type fields struct {
public crypto.PublicKey
certificate *x509.Certificate
certificateURL string
}
tests := []struct {
name string
fields fields
want string
wantErr bool
}{
{
name: "fail/no-ek-cert",
fields: fields{},
wantErr: true,
},
{
name: "ok",
fields: fields{
certificate: cert,
},
want: string(pemString),
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
ek := &EK{
public: tt.fields.public,
certificate: tt.fields.certificate,
certificateURL: tt.fields.certificateURL,
}
got, err := ek.PEM()
if (err != nil) != tt.wantErr {
t.Errorf("EK.PEM() error = %v, wantErr %v", err, tt.wantErr)
return
}
if got != tt.want {
t.Errorf("EK.PEM() = %v, want %v", got, tt.want)
}
})
}
}
|
