forked from go-fed/httpsig
-
Notifications
You must be signed in to change notification settings - Fork 0
Expand file tree
/
Copy pathhttpsig_test.go
More file actions
901 lines (838 loc) · 31.6 KB
/
Copy pathhttpsig_test.go
File metadata and controls
901 lines (838 loc) · 31.6 KB
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
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
package httpsig
import (
"bytes"
"crypto"
"crypto/rand"
"crypto/rsa"
"crypto/sha256"
"crypto/x509"
"encoding/asn1"
"encoding/base64"
"encoding/pem"
"fmt"
"io/ioutil"
"net/http"
"net/http/httptest"
"strconv"
"strings"
"testing"
"golang.org/x/crypto/ed25519"
)
const (
testUrl = "foo.net/bar/baz?q=test&r=ok"
testUrlPath = "bar/baz"
testDate = "Tue, 07 Jun 2014 20:51:35 GMT"
testDigest = "SHA-256=X48E9qOokqqrvdts8nOJRJN3OWDUoyWxBf7kbu9DBPE="
testMethod = "GET"
)
type httpsigTest struct {
name string
prefs []Algorithm
digestAlg DigestAlgorithm
headers []string
body []byte
scheme SignatureScheme
privKey crypto.PrivateKey
pubKey crypto.PublicKey
pubKeyId string
expectedSignatureAlgorithm string
expectedAlgorithm Algorithm
expectErrorSigningResponse bool
expectRequestPath bool
expectedDigest string
}
type ed25519PrivKey struct {
Version int
ObjectIdentifier struct {
ObjectIdentifier asn1.ObjectIdentifier
}
PrivateKey []byte
}
type ed25519PubKey struct {
OBjectIdentifier struct {
ObjectIdentifier asn1.ObjectIdentifier
}
PublicKey asn1.BitString
}
var (
privKey *rsa.PrivateKey
macKey []byte
tests []httpsigTest
testSpecRSAPrivateKey *rsa.PrivateKey
testSpecRSAPublicKey *rsa.PublicKey
testEd25519PrivateKey ed25519.PrivateKey
testEd25519PublicKey ed25519.PublicKey
)
func init() {
var err error
privKey, err = rsa.GenerateKey(rand.Reader, 2048)
if err != nil {
panic(err)
}
pubEd25519Key, privEd25519Key, err := ed25519.GenerateKey(rand.Reader)
if err != nil {
panic(err)
}
macKey = make([]byte, 128)
err = readFullFromCrypto(macKey)
if err != nil {
panic(err)
}
tests = []httpsigTest{
{
name: "rsa signature",
prefs: []Algorithm{RSA_SHA512},
digestAlg: DigestSha256,
headers: []string{"Date", "Digest"},
scheme: Signature,
privKey: privKey,
pubKey: privKey.Public(),
pubKeyId: "pubKeyId",
expectedAlgorithm: RSA_SHA512,
expectedSignatureAlgorithm: "hs2019",
},
{
name: "ed25519 signature",
prefs: []Algorithm{ED25519},
digestAlg: DigestSha512,
headers: []string{"Date", "Digest"},
scheme: Signature,
privKey: privEd25519Key,
pubKey: pubEd25519Key,
pubKeyId: "pubKeyId",
expectedAlgorithm: ED25519,
expectedSignatureAlgorithm: "hs2019",
},
{
name: "digest on rsa signature",
prefs: []Algorithm{RSA_SHA512},
digestAlg: DigestSha256,
headers: []string{"Date", "Digest"},
body: []byte("Last night as I lay dreaming This strangest kind of feeling Revealed its secret meaning And now I know..."),
scheme: Signature,
privKey: privKey,
pubKey: privKey.Public(),
pubKeyId: "pubKeyId",
expectedAlgorithm: RSA_SHA512,
expectedSignatureAlgorithm: "hs2019",
expectedDigest: "SHA-256=07PJQngqg8+BlomdI6zM7ieOxhINWI+iivJxBDSm3Dg=",
},
{
name: "digest on ed25519 signature",
prefs: []Algorithm{ED25519},
digestAlg: DigestSha256,
headers: []string{"Date", "Digest"},
body: []byte("Last night as I lay dreaming This strangest kind of feeling Revealed its secret meaning And now I know..."),
scheme: Signature,
privKey: privEd25519Key,
pubKey: pubEd25519Key,
pubKeyId: "pubKeyId",
expectedAlgorithm: ED25519,
expectedSignatureAlgorithm: "hs2019",
expectedDigest: "SHA-256=07PJQngqg8+BlomdI6zM7ieOxhINWI+iivJxBDSm3Dg=",
},
{
name: "hmac signature",
prefs: []Algorithm{HMAC_SHA256},
digestAlg: DigestSha256,
headers: []string{"Date", "Digest"},
scheme: Signature,
privKey: macKey,
pubKey: macKey,
pubKeyId: "pubKeyId",
expectedAlgorithm: HMAC_SHA256,
expectedSignatureAlgorithm: "hs2019",
},
{
name: "digest on hmac signature",
prefs: []Algorithm{HMAC_SHA256},
digestAlg: DigestSha256,
headers: []string{"Date", "Digest"},
body: []byte("I've never ever been to paradise I've never ever seen no angel's eyes You'll never ever let this magic die No matter where you are, you are my lucky star."),
scheme: Signature,
privKey: macKey,
pubKey: macKey,
pubKeyId: "pubKeyId",
expectedAlgorithm: HMAC_SHA256,
expectedSignatureAlgorithm: "hs2019",
expectedDigest: "SHA-256=d0JoDjbDZRZF7/gUdgrazZCdKCJ9z9uUcMd6n1YKWRU=",
},
{
name: "rsa authorization",
prefs: []Algorithm{RSA_SHA512},
digestAlg: DigestSha256,
headers: []string{"Date", "Digest"},
scheme: Authorization,
privKey: privKey,
pubKey: privKey.Public(),
pubKeyId: "pubKeyId",
expectedAlgorithm: RSA_SHA512,
expectedSignatureAlgorithm: "hs2019",
},
{
name: "ed25519 authorization",
prefs: []Algorithm{ED25519},
digestAlg: DigestSha256,
headers: []string{"Date", "Digest"},
scheme: Authorization,
privKey: privEd25519Key,
pubKey: pubEd25519Key,
pubKeyId: "pubKeyId",
expectedAlgorithm: ED25519,
expectedSignatureAlgorithm: "hs2019",
},
{
name: "hmac authorization",
prefs: []Algorithm{HMAC_SHA256},
digestAlg: DigestSha256,
headers: []string{"Date", "Digest"},
scheme: Authorization,
privKey: macKey,
pubKey: macKey,
pubKeyId: "pubKeyId",
expectedAlgorithm: HMAC_SHA256,
expectedSignatureAlgorithm: "hs2019",
},
{
name: "default algo",
digestAlg: DigestSha256,
headers: []string{"Date", "Digest"},
scheme: Signature,
privKey: privKey,
pubKey: privKey.Public(),
pubKeyId: "pubKeyId",
expectedAlgorithm: RSA_SHA256,
expectedSignatureAlgorithm: "hs2019",
},
{
name: "default headers",
prefs: []Algorithm{RSA_SHA512},
digestAlg: DigestSha256,
scheme: Signature,
privKey: privKey,
pubKey: privKey.Public(),
pubKeyId: "pubKeyId",
expectedAlgorithm: RSA_SHA512,
expectedSignatureAlgorithm: "hs2019",
},
{
name: "different pub key id",
prefs: []Algorithm{RSA_SHA512},
digestAlg: DigestSha256,
headers: []string{"Date", "Digest"},
scheme: Signature,
privKey: privKey,
pubKey: privKey.Public(),
pubKeyId: "i write code that sucks",
expectedAlgorithm: RSA_SHA512,
expectedSignatureAlgorithm: "hs2019",
},
{
name: "with request target",
prefs: []Algorithm{RSA_SHA512},
digestAlg: DigestSha256,
headers: []string{"Date", "Digest", RequestTarget},
scheme: Signature,
privKey: privKey,
pubKey: privKey.Public(),
pubKeyId: "pubKeyId",
expectedAlgorithm: RSA_SHA512,
expectedSignatureAlgorithm: "hs2019",
expectErrorSigningResponse: true,
expectRequestPath: true,
},
}
testSpecRSAPrivateKey, err = loadPrivateKey([]byte(testSpecPrivateKeyPEM))
if err != nil {
panic(err)
}
testSpecRSAPublicKey, err = loadPublicKey([]byte(testSpecPublicKeyPEM))
if err != nil {
panic(err)
}
testEd25519PrivateKey, err = loadEd25519PrivateKey([]byte(testEd25519PrivateKeyPEM))
if err != nil {
panic(err)
}
testEd25519PublicKey, err = loadEd25519PublicKey([]byte(testEd25519PublicKeyPEM))
if err != nil {
panic(err)
}
}
func toSignatureParameter(k, v string) string {
return fmt.Sprintf("%s%s%s%s%s", k, parameterKVSeparater, parameterValueDelimiter, v, parameterValueDelimiter)
}
func toHeaderSignatureParameters(k string, vals []string) string {
if len(vals) == 0 {
vals = defaultHeaders
}
v := strings.Join(vals, headerParameterValueDelim)
k = strings.ToLower(k)
v = strings.ToLower(v)
return fmt.Sprintf("%s%s%s%s%s", k, parameterKVSeparater, parameterValueDelimiter, v, parameterValueDelimiter)
}
func TestSignerRequest(t *testing.T) {
testFn := func(t *testing.T, test httpsigTest) {
s, a, err := NewSigner(test.prefs, test.digestAlg, test.headers, test.scheme, 0)
if err != nil {
t.Fatalf("%s", err)
}
if a != test.expectedAlgorithm {
t.Fatalf("got %s, want %s", a, test.expectedAlgorithm)
}
// Test request signing
req, err := http.NewRequest(testMethod, testUrl, nil)
if err != nil {
t.Fatalf("%s", err)
}
req.Header.Set("Date", testDate)
if test.body == nil {
req.Header.Set("Digest", testDigest)
}
err = s.SignRequest(test.privKey, test.pubKeyId, req, test.body)
if err != nil {
t.Fatalf("%s", err)
}
vals, ok := req.Header[string(test.scheme)]
if !ok {
t.Fatalf("not in header %s", test.scheme)
}
if len(vals) != 1 {
t.Fatalf("too many in header %s: %d", test.scheme, len(vals))
}
if p := toSignatureParameter(keyIdParameter, test.pubKeyId); !strings.Contains(vals[0], p) {
t.Fatalf("%s\ndoes not contain\n%s", vals[0], p)
} else if p := toSignatureParameter(algorithmParameter, string(test.expectedSignatureAlgorithm)); !strings.Contains(vals[0], p) {
t.Fatalf("%s\ndoes not contain\n%s", vals[0], p)
} else if p := toHeaderSignatureParameters(headersParameter, test.headers); !strings.Contains(vals[0], p) {
t.Fatalf("%s\ndoes not contain\n%s", vals[0], p)
} else if !strings.Contains(vals[0], signatureParameter) {
t.Fatalf("%s\ndoes not contain\n%s", vals[0], signatureParameter)
} else if test.body != nil && req.Header.Get("Digest") != test.expectedDigest {
t.Fatalf("%s\ndoes not match\n%s", req.Header.Get("Digest"), test.expectedDigest)
}
// For schemes with an authScheme, enforce its is present and at the beginning
if len(test.scheme.authScheme()) > 0 {
if !strings.HasPrefix(vals[0], test.scheme.authScheme()) {
t.Fatalf("%s\ndoes not start with\n%s", vals[0], test.scheme.authScheme())
}
}
}
for _, test := range tests {
t.Run(test.name, func(t *testing.T) {
testFn(t, test)
})
}
}
func TestSignerResponse(t *testing.T) {
testFn := func(t *testing.T, test httpsigTest) {
s, _, err := NewSigner(test.prefs, test.digestAlg, test.headers, test.scheme, 0)
// Test response signing
resp := httptest.NewRecorder()
resp.HeaderMap.Set("Date", testDate)
if test.body == nil {
resp.HeaderMap.Set("Digest", testDigest)
}
err = s.SignResponse(test.privKey, test.pubKeyId, resp, test.body)
if test.expectErrorSigningResponse {
if err != nil {
// Skip rest of testing
return
} else {
t.Fatalf("expected error, got nil")
}
}
vals, ok := resp.HeaderMap[string(test.scheme)]
if !ok {
t.Fatalf("not in header %s", test.scheme)
}
if len(vals) != 1 {
t.Fatalf("too many in header %s: %d", test.scheme, len(vals))
}
if p := toSignatureParameter(keyIdParameter, test.pubKeyId); !strings.Contains(vals[0], p) {
t.Fatalf("%s\ndoes not contain\n%s", vals[0], p)
} else if p := toSignatureParameter(algorithmParameter, string(test.expectedSignatureAlgorithm)); !strings.Contains(vals[0], p) {
t.Fatalf("%s\ndoes not contain\n%s", vals[0], p)
} else if p := toHeaderSignatureParameters(headersParameter, test.headers); !strings.Contains(vals[0], p) {
t.Fatalf("%s\ndoes not contain\n%s", vals[0], p)
} else if !strings.Contains(vals[0], signatureParameter) {
t.Fatalf("%s\ndoes not contain\n%s", vals[0], signatureParameter)
} else if test.body != nil && resp.Header().Get("Digest") != test.expectedDigest {
t.Fatalf("%s\ndoes not match\n%s", resp.Header().Get("Digest"), test.expectedDigest)
}
// For schemes with an authScheme, enforce its is present and at the beginning
if len(test.scheme.authScheme()) > 0 {
if !strings.HasPrefix(vals[0], test.scheme.authScheme()) {
t.Fatalf("%s\ndoes not start with\n%s", vals[0], test.scheme.authScheme())
}
}
}
for _, test := range tests {
t.Run(test.name, func(t *testing.T) {
testFn(t, test)
})
}
}
func TestNewSignerRequestMissingHeaders(t *testing.T) {
failingTests := []struct {
name string
prefs []Algorithm
digestAlg DigestAlgorithm
headers []string
scheme SignatureScheme
privKey crypto.PrivateKey
pubKeyId string
expectedAlgorithm Algorithm
expectedSignatureAlgorithm string
}{
{
name: "wants digest",
prefs: []Algorithm{RSA_SHA512},
digestAlg: DigestSha256,
headers: []string{"Date", "Digest"},
scheme: Signature,
privKey: privKey,
pubKeyId: "pubKeyId",
expectedSignatureAlgorithm: "hs2019",
expectedAlgorithm: RSA_SHA512,
},
}
for _, test := range failingTests {
t.Run(test.name, func(t *testing.T) {
test := test
s, a, err := NewSigner(test.prefs, test.digestAlg, test.headers, test.scheme, 0)
if err != nil {
t.Fatalf("%s", err)
}
if a != test.expectedAlgorithm {
t.Fatalf("got %s, want %s", a, test.expectedAlgorithm)
}
req, err := http.NewRequest(testMethod, testUrl, nil)
if err != nil {
t.Fatalf("%s", err)
}
req.Header.Set("Date", testDate)
err = s.SignRequest(test.privKey, test.pubKeyId, req, nil)
if err == nil {
t.Fatalf("expect error but got nil")
}
})
}
}
func TestNewSignerResponseMissingHeaders(t *testing.T) {
failingTests := []struct {
name string
prefs []Algorithm
digestAlg DigestAlgorithm
headers []string
scheme SignatureScheme
privKey crypto.PrivateKey
pubKeyId string
expectedAlgorithm Algorithm
expectErrorSigningResponse bool
expectedSignatureAlgorithm string
}{
{
name: "want digest",
prefs: []Algorithm{RSA_SHA512},
digestAlg: DigestSha256,
headers: []string{"Date", "Digest"},
scheme: Signature,
privKey: privKey,
pubKeyId: "pubKeyId",
expectedSignatureAlgorithm: "hs2019",
expectedAlgorithm: RSA_SHA512,
},
}
for _, test := range failingTests {
t.Run(test.name, func(t *testing.T) {
test := test
s, a, err := NewSigner(test.prefs, test.digestAlg, test.headers, test.scheme, 0)
if err != nil {
t.Fatalf("%s", err)
}
if a != test.expectedAlgorithm {
t.Fatalf("got %s, want %s", a, test.expectedAlgorithm)
}
resp := httptest.NewRecorder()
resp.HeaderMap.Set("Date", testDate)
resp.HeaderMap.Set("Digest", testDigest)
err = s.SignResponse(test.privKey, test.pubKeyId, resp, nil)
if err != nil {
t.Fatalf("expected error, got nil")
}
})
}
}
func TestNewVerifier(t *testing.T) {
for _, test := range tests {
t.Run(test.name, func(t *testing.T) {
test := test
// Prepare
req, err := http.NewRequest(testMethod, testUrl, nil)
if err != nil {
t.Fatalf("%s", err)
}
req.Header.Set("Date", testDate)
if test.body == nil {
req.Header.Set("Digest", testDigest)
}
s, _, err := NewSigner(test.prefs, test.digestAlg, test.headers, test.scheme, 0)
if err != nil {
t.Fatalf("%s", err)
}
err = s.SignRequest(test.privKey, test.pubKeyId, req, test.body)
if err != nil {
t.Fatalf("%s", err)
}
// Test verification
v, err := NewVerifier(req)
if err != nil {
t.Fatalf("%s", err)
}
if v.KeyId() != test.pubKeyId {
t.Fatalf("got %s, want %s", v.KeyId(), test.pubKeyId)
}
err = v.Verify(test.pubKey, test.expectedAlgorithm)
if err != nil {
t.Fatalf("%s", err)
}
})
}
}
func TestNewResponseVerifier(t *testing.T) {
for _, test := range tests {
t.Run(test.name, func(t *testing.T) {
test := test
if test.expectErrorSigningResponse {
return
}
// Prepare
resp := httptest.NewRecorder()
resp.HeaderMap.Set("Date", testDate)
if test.body == nil {
resp.HeaderMap.Set("Digest", testDigest)
}
s, _, err := NewSigner(test.prefs, test.digestAlg, test.headers, test.scheme, 0)
if err != nil {
t.Fatalf("%s", err)
}
err = s.SignResponse(test.privKey, test.pubKeyId, resp, test.body)
if err != nil {
t.Fatalf("%s", err)
}
// Test verification
v, err := NewResponseVerifier(resp.Result())
if err != nil {
t.Fatalf("%s", err)
}
if v.KeyId() != test.pubKeyId {
t.Fatalf("got %s, want %s", v.KeyId(), test.pubKeyId)
}
err = v.Verify(test.pubKey, test.expectedAlgorithm)
if err != nil {
t.Fatalf("%s", err)
}
})
}
}
// Test_Signing_HTTP_Messages_AppendixC implement tests from Appendix C
// in the http signatures specification:
// https://tools.ietf.org/html/draft-cavage-http-signatures-10#appendix-C
func Test_Signing_HTTP_Messages_AppendixC(t *testing.T) {
specTests := []struct {
name string
headers []string
expectedSignature string
}{
{
name: "C.1. Default Test",
headers: []string{},
// NOTE: In the Appendix C tests, the following is NOT included:
// `headers="date"`
// But httpsig will ALWAYS explicitly list the headers used in its
// signature. Hence, I have introduced it here.
//
// NOTE: In verification, if there are no headers listed, the
// default headers (date) are indeed used as required by the
// specification.
expectedSignature: `Authorization: Signature keyId="Test",algorithm="hs2019",headers="date",signature="SjWJWbWN7i0wzBvtPl8rbASWz5xQW6mcJmn+ibttBqtifLN7Sazz6m79cNfwwb8DMJ5cou1s7uEGKKCs+FLEEaDV5lp7q25WqS+lavg7T8hc0GppauB6hbgEKTwblDHYGEtbGmtdHgVCk9SuS13F0hZ8FD0k/5OxEPXe5WozsbM="`,
},
{
name: "C.2. Basic Test",
headers: []string{"(request-target)", "host", "date"},
expectedSignature: `Authorization: Signature keyId="Test",algorithm="hs2019",headers="(request-target) host date",signature="qdx+H7PHHDZgy4y/Ahn9Tny9V3GP6YgBPyUXMmoxWtLbHpUnXS2mg2+SbrQDMCJypxBLSPQR2aAjn7ndmw2iicw3HMbe8VfEdKFYRqzic+efkb3nndiv/x1xSHDJWeSWkx3ButlYSuBskLu6kd9Fswtemr3lgdDEmn04swr2Os0="`,
},
{
name: "C.3. All Headers Test",
headers: []string{"(request-target)", "host", "date", "content-type", "digest", "content-length"},
expectedSignature: `Authorization: Signature keyId="Test",algorithm="hs2019",headers="(request-target) host date content-type digest content-length",signature="vSdrb+dS3EceC9bcwHSo4MlyKS59iFIrhgYkz8+oVLEEzmYZZvRs8rgOp+63LEM3v+MFHB32NfpB2bEKBIvB1q52LaEUHFv120V01IL+TAD48XaERZFukWgHoBTLMhYS2Gb51gWxpeIq8knRmPnYePbF5MOkR0Zkly4zKH7s1dE="`,
},
}
for _, test := range specTests {
t.Run(test.name, func(t *testing.T) {
test := test
r, err := http.NewRequest("POST", "http://example.com/foo?param=value&pet=dog", bytes.NewBuffer([]byte(testSpecBody)))
if err != nil {
t.Fatalf("error creating request: %s", err)
}
r.Header["Date"] = []string{testSpecDate}
r.Header["Host"] = []string{r.URL.Host}
r.Header["Content-Length"] = []string{strconv.Itoa(len(testSpecBody))}
r.Header["Content-Type"] = []string{"application/json"}
setDigest(r)
s, _, err := NewSigner([]Algorithm{RSA_SHA256}, DigestSha256, test.headers, Authorization, 0)
if err != nil {
t.Fatalf("error creating signer: %s", err)
}
if err := s.SignRequest(testSpecRSAPrivateKey, "Test", r, nil); err != nil {
t.Fatalf("error signing request: %s", err)
}
expectedAuth := test.expectedSignature
gotAuth := fmt.Sprintf("Authorization: %s", r.Header["Authorization"][0])
if gotAuth != expectedAuth {
t.Errorf("Signature string mismatch\nGot: %s\nWant: %s", gotAuth, expectedAuth)
}
})
}
}
func TestSigningEd25519(t *testing.T) {
specTests := []struct {
name string
headers []string
expectedSignature string
}{
{
name: "Default Test",
headers: []string{},
// NOTE: In the Appendix C tests, the following is NOT included:
// `headers="date"`
// But httpsig will ALWAYS explicitly list the headers used in its
// signature. Hence, I have introduced it here.
//
// NOTE: In verification, if there are no headers listed, the
// default headers (date) are indeed used as required by the
// specification.
expectedSignature: `Authorization: Signature keyId="Test",algorithm="hs2019",headers="date",signature="6G9bNnUfph4pnl3j8l4UTcSPJVg6r4tM73eWFAn+w4IdIi8yzzZs65QlgM31lAuVCRKlqMzME9VGgMt16nU1AQ=="`,
},
{
name: "Basic Test",
headers: []string{"(request-target)", "host", "date"},
expectedSignature: `Authorization: Signature keyId="Test",algorithm="hs2019",headers="(request-target) host date",signature="upsoNpw5oJTD3lTIQHEnDGWTaKmlT7o2c9Lz3kqy2UTwOEpEop3Sd7F/K2bYD2lQ4AH1HRyvC4/9AcKgNBg1AA=="`,
},
{
name: "All Headers Test",
headers: []string{"(request-target)", "host", "date", "content-type", "digest", "content-length"},
expectedSignature: `Authorization: Signature keyId="Test",algorithm="hs2019",headers="(request-target) host date content-type digest content-length",signature="UkxhZl0W5/xcuCIP5xOPv4V6rX0TmaV2lmrYYGWauKhdFHihpW80tCqTNFDhyD+nYeGNCRSFRHmDS0bGm0PVAg=="`,
},
}
for _, test := range specTests {
t.Run(test.name, func(t *testing.T) {
test := test
r, err := http.NewRequest("POST", "http://example.com/foo?param=value&pet=dog", bytes.NewBuffer([]byte(testSpecBody)))
if err != nil {
t.Fatalf("error creating request: %s", err)
}
r.Header["Date"] = []string{testSpecDate}
r.Header["Host"] = []string{r.URL.Host}
r.Header["Content-Length"] = []string{strconv.Itoa(len(testSpecBody))}
r.Header["Content-Type"] = []string{"application/json"}
setDigest(r)
s, _, err := NewSigner([]Algorithm{ED25519}, DigestSha256, test.headers, Authorization, 0)
if err != nil {
t.Fatalf("error creating signer: %s", err)
}
if err := s.SignRequest(testEd25519PrivateKey, "Test", r, nil); err != nil {
t.Fatalf("error signing request: %s", err)
}
expectedAuth := test.expectedSignature
gotAuth := fmt.Sprintf("Authorization: %s", r.Header["Authorization"][0])
if gotAuth != expectedAuth {
t.Errorf("Signature string mismatch\nGot: %s\nWant: %s", gotAuth, expectedAuth)
}
})
}
}
// Test_Verifying_HTTP_Messages_AppendixC implement tests from Appendix C
// in the http signatures specification:
// https://tools.ietf.org/html/draft-cavage-http-signatures-10#appendix-C
func Test_Verifying_HTTP_Messages_AppendixC(t *testing.T) {
specTests := []struct {
name string
headers []string
signature string
}{
{
name: "C.1. Default Test",
headers: []string{},
signature: `Signature keyId="Test",algorithm="rsa-sha256",signature="SjWJWbWN7i0wzBvtPl8rbASWz5xQW6mcJmn+ibttBqtifLN7Sazz6m79cNfwwb8DMJ5cou1s7uEGKKCs+FLEEaDV5lp7q25WqS+lavg7T8hc0GppauB6hbgEKTwblDHYGEtbGmtdHgVCk9SuS13F0hZ8FD0k/5OxEPXe5WozsbM="`,
},
{
name: "C.2. Basic Test",
headers: []string{"(request-target)", "host", "date"},
signature: `Signature keyId="Test",algorithm="rsa-sha256",headers="(request-target) host date",signature="qdx+H7PHHDZgy4y/Ahn9Tny9V3GP6YgBPyUXMmoxWtLbHpUnXS2mg2+SbrQDMCJypxBLSPQR2aAjn7ndmw2iicw3HMbe8VfEdKFYRqzic+efkb3nndiv/x1xSHDJWeSWkx3ButlYSuBskLu6kd9Fswtemr3lgdDEmn04swr2Os0="`,
},
{
name: "C.3. All Headers Test",
headers: []string{"(request-target)", "host", "date", "content-type", "digest", "content-length"},
signature: `Signature keyId="Test",algorithm="rsa-sha256",headers="(request-target) host date content-type digest content-length",signature="vSdrb+dS3EceC9bcwHSo4MlyKS59iFIrhgYkz8+oVLEEzmYZZvRs8rgOp+63LEM3v+MFHB32NfpB2bEKBIvB1q52LaEUHFv120V01IL+TAD48XaERZFukWgHoBTLMhYS2Gb51gWxpeIq8knRmPnYePbF5MOkR0Zkly4zKH7s1dE="`,
},
}
for _, test := range specTests {
t.Run(test.name, func(t *testing.T) {
test := test
r, err := http.NewRequest("POST", "http://example.com/foo?param=value&pet=dog", bytes.NewBuffer([]byte(testSpecBody)))
if err != nil {
t.Fatalf("error creating request: %s", err)
}
r.Header["Date"] = []string{testSpecDate}
r.Header["Host"] = []string{r.URL.Host}
r.Header["Content-Length"] = []string{strconv.Itoa(len(testSpecBody))}
r.Header["Content-Type"] = []string{"application/json"}
setDigest(r)
r.Header["Authorization"] = []string{test.signature}
v, err := NewVerifier(r)
if err != nil {
t.Fatalf("error creating verifier: %s", err)
}
if "Test" != v.KeyId() {
t.Errorf("KeyId mismatch\nGot: %s\nWant: Test", v.KeyId())
}
if err := v.Verify(testSpecRSAPublicKey, RSA_SHA256); err != nil {
t.Errorf("Verification failure: %s", err)
}
})
}
}
func TestVerifyingEd25519(t *testing.T) {
specTests := []struct {
name string
headers []string
signature string
}{
{
name: "Default Test",
headers: []string{},
signature: `Signature keyId="Test",algorithm="hs2019",headers="date",signature="6G9bNnUfph4pnl3j8l4UTcSPJVg6r4tM73eWFAn+w4IdIi8yzzZs65QlgM31lAuVCRKlqMzME9VGgMt16nU1AQ=="`,
},
{
name: "Basic Test",
headers: []string{"(request-target)", "host", "date"},
signature: `Signature keyId="Test",algorithm="hs2019",headers="(request-target) host date",signature="upsoNpw5oJTD3lTIQHEnDGWTaKmlT7o2c9Lz3kqy2UTwOEpEop3Sd7F/K2bYD2lQ4AH1HRyvC4/9AcKgNBg1AA=="`,
},
{
name: "All Headers Test",
headers: []string{"(request-target)", "host", "date", "content-type", "digest", "content-length"},
signature: `Signature keyId="Test",algorithm="hs2019",headers="(request-target) host date content-type digest content-length",signature="UkxhZl0W5/xcuCIP5xOPv4V6rX0TmaV2lmrYYGWauKhdFHihpW80tCqTNFDhyD+nYeGNCRSFRHmDS0bGm0PVAg=="`,
},
}
for _, test := range specTests {
t.Run(test.name, func(t *testing.T) {
test := test
r, err := http.NewRequest("POST", "http://example.com/foo?param=value&pet=dog", bytes.NewBuffer([]byte(testSpecBody)))
if err != nil {
t.Fatalf("error creating request: %s", err)
}
r.Header["Date"] = []string{testSpecDate}
r.Header["Host"] = []string{r.URL.Host}
r.Header["Content-Length"] = []string{strconv.Itoa(len(testSpecBody))}
r.Header["Content-Type"] = []string{"application/json"}
setDigest(r)
r.Header["Authorization"] = []string{test.signature}
v, err := NewVerifier(r)
if err != nil {
t.Fatalf("error creating verifier: %s", err)
}
if "Test" != v.KeyId() {
t.Errorf("KeyId mismatch\nGot: %s\nWant: Test", v.KeyId())
}
if err := v.Verify(testEd25519PublicKey, ED25519); err != nil {
t.Errorf("Verification failure: %s", err)
}
})
}
}
func loadPrivateKey(keyData []byte) (*rsa.PrivateKey, error) {
pem, _ := pem.Decode(keyData)
if pem.Type != "RSA PRIVATE KEY" {
return nil, fmt.Errorf("RSA private key is of the wrong type: %s", pem.Type)
}
return x509.ParsePKCS1PrivateKey(pem.Bytes)
}
// taken from https://blainsmith.com/articles/signing-jwts-with-gos-crypto-ed25519/
func loadEd25519PrivateKey(keyData []byte) (ed25519.PrivateKey, error) {
var block *pem.Block
block, _ = pem.Decode(keyData)
var asn1PrivKey ed25519PrivKey
asn1.Unmarshal(block.Bytes, &asn1PrivKey)
// [2:] is skipping the byte for TAG and the byte for LEN
// see also https://tools.ietf.org/html/draft-ietf-curdle-pkix-10#section-10.3
return ed25519.NewKeyFromSeed(asn1PrivKey.PrivateKey[2:]), nil
}
func loadPublicKey(keyData []byte) (*rsa.PublicKey, error) {
pem, _ := pem.Decode(keyData)
if pem.Type != "PUBLIC KEY" {
return nil, fmt.Errorf("public key is of the wrong type: %s", pem.Type)
}
key, err := x509.ParsePKIXPublicKey(pem.Bytes)
if err != nil {
return nil, err
}
return key.(*rsa.PublicKey), nil
}
// taken from https://blainsmith.com/articles/signing-jwts-with-gos-crypto-ed25519/
func loadEd25519PublicKey(keyData []byte) (ed25519.PublicKey, error) {
var block *pem.Block
block, _ = pem.Decode(keyData)
var asn1PubKey ed25519PubKey
asn1.Unmarshal(block.Bytes, &asn1PubKey)
return ed25519.PublicKey(asn1PubKey.PublicKey.Bytes), nil
}
func setDigest(r *http.Request) ([]byte, error) {
var bodyBytes []byte
if _, ok := r.Header["Digest"]; !ok {
body := ""
if r.Body != nil {
var err error
bodyBytes, err = ioutil.ReadAll(r.Body)
if err != nil {
return nil, fmt.Errorf("error reading body. %v", err)
}
// And now set a new body, which will simulate the same data we read:
r.Body = ioutil.NopCloser(bytes.NewBuffer(bodyBytes))
body = string(bodyBytes)
}
d := sha256.Sum256([]byte(body))
r.Header["Digest"] = []string{fmt.Sprintf("SHA-256=%s", base64.StdEncoding.EncodeToString(d[:]))}
}
return bodyBytes, nil
}
const testSpecBody = `{"hello": "world"}`
const testSpecDate = `Sun, 05 Jan 2014 21:31:40 GMT`
const testSpecPrivateKeyPEM = `-----BEGIN RSA PRIVATE KEY-----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-----END RSA PRIVATE KEY-----`
const testSpecPublicKeyPEM = `-----BEGIN PUBLIC KEY-----
MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDCFENGw33yGihy92pDjZQhl0C3
6rPJj+CvfSC8+q28hxA161QFNUd13wuCTUcq0Qd2qsBe/2hFyc2DCJJg0h1L78+6
Z4UMR7EOcpfdUE9Hf3m/hs+FUR45uBJeDK1HSFHD8bHKD6kv8FPGfJTotc+2xjJw
oYi+1hqp1fIekaxsyQIDAQAB
-----END PUBLIC KEY-----`
const testEd25519PrivateKeyPEM = `-----BEGIN PRIVATE KEY-----
MC4CAQAwBQYDK2VwBCIEIAP+PK4NtdzCe04sbtwBvf9IShlky298SMMBqkCCToHn
-----END PRIVATE KEY-----`
const testEd25519PublicKeyPEM = `-----BEGIN PUBLIC KEY-----
MCowBQYDK2VwAyEAhyP+7zpNCsr7/ipGJjK0zVszTEQ5tooyX3VLAnBSc1c=
-----END PUBLIC KEY-----`