1// Copyright 2009 The Go Authors. All rights reserved.
2// Use of this source code is governed by a BSD-style
3// license that can be found in the LICENSE file.
4
5package x509
6
7import (
8	"bytes"
9	"crypto/dsa"
10	"crypto/ecdsa"
11	"crypto/elliptic"
12	"crypto/rand"
13	"crypto/rsa"
14	_ "crypto/sha256"
15	_ "crypto/sha512"
16	"crypto/x509/pkix"
17	"encoding/asn1"
18	"encoding/base64"
19	"encoding/hex"
20	"encoding/pem"
21	"fmt"
22	"internal/testenv"
23	"math/big"
24	"net"
25	"net/url"
26	"os/exec"
27	"reflect"
28	"runtime"
29	"strings"
30	"testing"
31	"time"
32)
33
34func TestParsePKCS1PrivateKey(t *testing.T) {
35	block, _ := pem.Decode([]byte(pemPrivateKey))
36	priv, err := ParsePKCS1PrivateKey(block.Bytes)
37	if err != nil {
38		t.Errorf("Failed to parse private key: %s", err)
39		return
40	}
41	if priv.PublicKey.N.Cmp(rsaPrivateKey.PublicKey.N) != 0 ||
42		priv.PublicKey.E != rsaPrivateKey.PublicKey.E ||
43		priv.D.Cmp(rsaPrivateKey.D) != 0 ||
44		priv.Primes[0].Cmp(rsaPrivateKey.Primes[0]) != 0 ||
45		priv.Primes[1].Cmp(rsaPrivateKey.Primes[1]) != 0 {
46		t.Errorf("got:%+v want:%+v", priv, rsaPrivateKey)
47	}
48
49	// This private key includes an invalid prime that
50	// rsa.PrivateKey.Validate should reject.
51	data := []byte("0\x16\x02\x00\x02\x02\u007f\x00\x02\x0200\x02\x0200\x02\x02\x00\x01\x02\x02\u007f\x00")
52	if _, err := ParsePKCS1PrivateKey(data); err == nil {
53		t.Errorf("parsing invalid private key did not result in an error")
54	}
55}
56
57func TestParsePKIXPublicKey(t *testing.T) {
58	block, _ := pem.Decode([]byte(pemPublicKey))
59	pub, err := ParsePKIXPublicKey(block.Bytes)
60	if err != nil {
61		t.Errorf("Failed to parse RSA public key: %s", err)
62		return
63	}
64	rsaPub, ok := pub.(*rsa.PublicKey)
65	if !ok {
66		t.Errorf("Value returned from ParsePKIXPublicKey was not an RSA public key")
67		return
68	}
69
70	pubBytes2, err := MarshalPKIXPublicKey(rsaPub)
71	if err != nil {
72		t.Errorf("Failed to marshal RSA public key for the second time: %s", err)
73		return
74	}
75	if !bytes.Equal(pubBytes2, block.Bytes) {
76		t.Errorf("Reserialization of public key didn't match. got %x, want %x", pubBytes2, block.Bytes)
77	}
78}
79
80var pemPublicKey = `-----BEGIN PUBLIC KEY-----
81MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA3VoPN9PKUjKFLMwOge6+
82wnDi8sbETGIx2FKXGgqtAKpzmem53kRGEQg8WeqRmp12wgp74TGpkEXsGae7RS1k
83enJCnma4fii+noGH7R0qKgHvPrI2Bwa9hzsH8tHxpyM3qrXslOmD45EH9SxIDUBJ
84FehNdaPbLP1gFyahKMsdfxFJLUvbUycuZSJ2ZnIgeVxwm4qbSvZInL9Iu4FzuPtg
85fINKcbbovy1qq4KvPIrXzhbY3PWDc6btxCf3SE0JdE1MCPThntB62/bLMSQ7xdDR
86FF53oIpvxe/SCOymfWq/LW849Ytv3Xwod0+wzAP8STXG4HSELS4UedPYeHJJJYcZ
87+QIDAQAB
88-----END PUBLIC KEY-----
89`
90
91var pemPrivateKey = `
92-----BEGIN RSA PRIVATE KEY-----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106-----END RSA PRIVATE KEY-----
107`
108
109var testPrivateKey *rsa.PrivateKey
110
111func init() {
112	block, _ := pem.Decode([]byte(pemPrivateKey))
113
114	var err error
115	if testPrivateKey, err = ParsePKCS1PrivateKey(block.Bytes); err != nil {
116		panic("Failed to parse private key: " + err.Error())
117	}
118}
119
120func bigFromString(s string) *big.Int {
121	ret := new(big.Int)
122	ret.SetString(s, 10)
123	return ret
124}
125
126func fromBase10(base10 string) *big.Int {
127	i := new(big.Int)
128	i.SetString(base10, 10)
129	return i
130}
131
132func bigFromHexString(s string) *big.Int {
133	ret := new(big.Int)
134	ret.SetString(s, 16)
135	return ret
136}
137
138var rsaPrivateKey = &rsa.PrivateKey{
139	PublicKey: rsa.PublicKey{
140		N: bigFromString("124737666279038955318614287965056875799409043964547386061640914307192830334599556034328900586693254156136128122194531292927142396093148164407300419162827624945636708870992355233833321488652786796134504707628792159725681555822420087112284637501705261187690946267527866880072856272532711620639179596808018872997"),
141		E: 65537,
142	},
143	D: bigFromString("69322600686866301945688231018559005300304807960033948687567105312977055197015197977971637657636780793670599180105424702854759606794705928621125408040473426339714144598640466128488132656829419518221592374964225347786430566310906679585739468938549035854760501049443920822523780156843263434219450229353270690889"),
144	Primes: []*big.Int{
145		bigFromString("11405025354575369741595561190164746858706645478381139288033759331174478411254205003127028642766986913445391069745480057674348716675323735886284176682955723"),
146		bigFromString("10937079261204603443118731009201819560867324167189758120988909645641782263430128449826989846631183550578761324239709121189827307416350485191350050332642639"),
147	},
148}
149
150func TestMarshalRSAPrivateKey(t *testing.T) {
151	priv := &rsa.PrivateKey{
152		PublicKey: rsa.PublicKey{
153			N: fromBase10("16346378922382193400538269749936049106320265317511766357599732575277382844051791096569333808598921852351577762718529818072849191122419410612033592401403764925096136759934497687765453905884149505175426053037420486697072448609022753683683718057795566811401938833367954642951433473337066311978821180526439641496973296037000052546108507805269279414789035461158073156772151892452251106173507240488993608650881929629163465099476849643165682709047462010581308719577053905787496296934240246311806555924593059995202856826239801816771116902778517096212527979497399966526283516447337775509777558018145573127308919204297111496233"),
154			E: 3,
155		},
156		D: fromBase10("10897585948254795600358846499957366070880176878341177571733155050184921896034527397712889205732614568234385175145686545381899460748279607074689061600935843283397424506622998458510302603922766336783617368686090042765718290914099334449154829375179958369993407724946186243249568928237086215759259909861748642124071874879861299389874230489928271621259294894142840428407196932444474088857746123104978617098858619445675532587787023228852383149557470077802718705420275739737958953794088728369933811184572620857678792001136676902250566845618813972833750098806496641114644760255910789397593428910198080271317419213080834885003"),
157		Primes: []*big.Int{
158			fromBase10("1025363189502892836833747188838978207017355117492483312747347695538428729137306368764177201532277413433182799108299960196606011786562992097313508180436744488171474690412562218914213688661311117337381958560443"),
159			fromBase10("3467903426626310123395340254094941045497208049900750380025518552334536945536837294961497712862519984786362199788654739924501424784631315081391467293694361474867825728031147665777546570788493758372218019373"),
160			fromBase10("4597024781409332673052708605078359346966325141767460991205742124888960305710298765592730135879076084498363772408626791576005136245060321874472727132746643162385746062759369754202494417496879741537284589047"),
161		},
162	}
163
164	derBytes := MarshalPKCS1PrivateKey(priv)
165
166	priv2, err := ParsePKCS1PrivateKey(derBytes)
167	if err != nil {
168		t.Errorf("error parsing serialized key: %s", err)
169		return
170	}
171	if priv.PublicKey.N.Cmp(priv2.PublicKey.N) != 0 ||
172		priv.PublicKey.E != priv2.PublicKey.E ||
173		priv.D.Cmp(priv2.D) != 0 ||
174		len(priv2.Primes) != 3 ||
175		priv.Primes[0].Cmp(priv2.Primes[0]) != 0 ||
176		priv.Primes[1].Cmp(priv2.Primes[1]) != 0 ||
177		priv.Primes[2].Cmp(priv2.Primes[2]) != 0 {
178		t.Errorf("got:%+v want:%+v", priv, priv2)
179	}
180}
181
182func TestMarshalRSAPublicKey(t *testing.T) {
183	pub := &rsa.PublicKey{
184		N: fromBase10("16346378922382193400538269749936049106320265317511766357599732575277382844051791096569333808598921852351577762718529818072849191122419410612033592401403764925096136759934497687765453905884149505175426053037420486697072448609022753683683718057795566811401938833367954642951433473337066311978821180526439641496973296037000052546108507805269279414789035461158073156772151892452251106173507240488993608650881929629163465099476849643165682709047462010581308719577053905787496296934240246311806555924593059995202856826239801816771116902778517096212527979497399966526283516447337775509777558018145573127308919204297111496233"),
185		E: 3,
186	}
187	derBytes := MarshalPKCS1PublicKey(pub)
188	pub2, err := ParsePKCS1PublicKey(derBytes)
189	if err != nil {
190		t.Errorf("ParsePKCS1PublicKey: %s", err)
191	}
192	if pub.N.Cmp(pub2.N) != 0 || pub.E != pub2.E {
193		t.Errorf("ParsePKCS1PublicKey = %+v, want %+v", pub, pub2)
194	}
195
196	// It's never been documented that asn1.Marshal/Unmarshal on rsa.PublicKey works,
197	// but it does, and we know of code that depends on it.
198	// Lock that in, even though we'd prefer that people use MarshalPKCS1PublicKey and ParsePKCS1PublicKey.
199	derBytes2, err := asn1.Marshal(*pub)
200	if err != nil {
201		t.Errorf("Marshal(rsa.PublicKey): %v", err)
202	} else if !bytes.Equal(derBytes, derBytes2) {
203		t.Errorf("Marshal(rsa.PublicKey) = %x, want %x", derBytes2, derBytes)
204	}
205	pub3 := new(rsa.PublicKey)
206	rest, err := asn1.Unmarshal(derBytes, pub3)
207	if err != nil {
208		t.Errorf("Unmarshal(rsa.PublicKey): %v", err)
209	}
210	if len(rest) != 0 || pub.N.Cmp(pub3.N) != 0 || pub.E != pub3.E {
211		t.Errorf("Unmarshal(rsa.PublicKey) = %+v, %q want %+v, %q", pub, rest, pub2, []byte(nil))
212	}
213
214	publicKeys := []struct {
215		derBytes          []byte
216		expectedErrSubstr string
217	}{
218		{
219			derBytes: []byte{
220				0x30, 6, // SEQUENCE, 6 bytes
221				0x02, 1, // INTEGER, 1 byte
222				17,
223				0x02, 1, // INTEGER, 1 byte
224				3, // 3
225			},
226		}, {
227			derBytes: []byte{
228				0x30, 6, // SEQUENCE
229				0x02, 1, // INTEGER, 1 byte
230				0xff,    // -1
231				0x02, 1, // INTEGER, 1 byte
232				3,
233			},
234			expectedErrSubstr: "zero or negative",
235		}, {
236			derBytes: []byte{
237				0x30, 6, // SEQUENCE
238				0x02, 1, // INTEGER, 1 byte
239				17,
240				0x02, 1, // INTEGER, 1 byte
241				0xff, // -1
242			},
243			expectedErrSubstr: "zero or negative",
244		}, {
245			derBytes: []byte{
246				0x30, 6, // SEQUENCE
247				0x02, 1, // INTEGER, 1 byte
248				17,
249				0x02, 1, // INTEGER, 1 byte
250				3,
251				1,
252			},
253			expectedErrSubstr: "trailing data",
254		}, {
255			derBytes: []byte{
256				0x30, 9, // SEQUENCE
257				0x02, 1, // INTEGER, 1 byte
258				17,
259				0x02, 4, // INTEGER, 4 bytes
260				0x7f, 0xff, 0xff, 0xff,
261			},
262		}, {
263			derBytes: []byte{
264				0x30, 10, // SEQUENCE
265				0x02, 1, // INTEGER, 1 byte
266				17,
267				0x02, 5, // INTEGER, 5 bytes
268				0x00, 0x80, 0x00, 0x00, 0x00,
269			},
270			// On 64-bit systems, encoding/asn1 will accept the
271			// public exponent, but ParsePKCS1PublicKey will return
272			// an error. On 32-bit systems, encoding/asn1 will
273			// return the error. The common substring of both error
274			// is the word “large”.
275			expectedErrSubstr: "large",
276		},
277	}
278
279	for i, test := range publicKeys {
280		shouldFail := len(test.expectedErrSubstr) > 0
281		pub, err := ParsePKCS1PublicKey(test.derBytes)
282		if shouldFail {
283			if err == nil {
284				t.Errorf("#%d: unexpected success, got %#v", i, pub)
285			} else if !strings.Contains(err.Error(), test.expectedErrSubstr) {
286				t.Errorf("#%d: expected error containing %q, got %s", i, test.expectedErrSubstr, err)
287			}
288		} else {
289			if err != nil {
290				t.Errorf("#%d: unexpected failure: %s", i, err)
291				continue
292			}
293			reserialized := MarshalPKCS1PublicKey(pub)
294			if !bytes.Equal(reserialized, test.derBytes) {
295				t.Errorf("#%d: failed to reserialize: got %x, expected %x", i, reserialized, test.derBytes)
296			}
297		}
298	}
299}
300
301type matchHostnamesTest struct {
302	pattern, host string
303	ok            bool
304}
305
306var matchHostnamesTests = []matchHostnamesTest{
307	{"a.b.c", "a.b.c", true},
308	{"a.b.c", "b.b.c", false},
309	{"", "b.b.c", false},
310	{"a.b.c", "", false},
311	{"example.com", "example.com", true},
312	{"example.com", "www.example.com", false},
313	{"*.example.com", "example.com", false},
314	{"*.example.com", "www.example.com", true},
315	{"*.example.com", "www.example.com.", true},
316	{"*.example.com", "xyz.www.example.com", false},
317	{"*.*.example.com", "xyz.www.example.com", false},
318	{"*.www.*.com", "xyz.www.example.com", false},
319	{"*bar.example.com", "foobar.example.com", false},
320	{"f*.example.com", "foobar.example.com", false},
321	{"", ".", false},
322	{".", "", false},
323	{".", ".", false},
324	{"example.com", "example.com.", true},
325	{"example.com.", "example.com", true},
326	{"example.com.", "example.com.", true},
327	{"*.com.", "example.com.", true},
328	{"*.com.", "example.com", true},
329	{"*.com", "example.com", true},
330	{"*.com", "example.com.", true},
331}
332
333func TestMatchHostnames(t *testing.T) {
334	for i, test := range matchHostnamesTests {
335		r := matchHostnames(test.pattern, test.host)
336		if r != test.ok {
337			t.Errorf("#%d mismatch got: %t want: %t when matching '%s' against '%s'", i, r, test.ok, test.host, test.pattern)
338		}
339	}
340}
341
342func TestMatchIP(t *testing.T) {
343	// Check that pattern matching is working.
344	c := &Certificate{
345		DNSNames: []string{"*.foo.bar.baz"},
346		Subject: pkix.Name{
347			CommonName: "*.foo.bar.baz",
348		},
349	}
350	err := c.VerifyHostname("quux.foo.bar.baz")
351	if err != nil {
352		t.Fatalf("VerifyHostname(quux.foo.bar.baz): %v", err)
353	}
354
355	// But check that if we change it to be matching against an IP address,
356	// it is rejected.
357	c = &Certificate{
358		DNSNames: []string{"*.2.3.4"},
359		Subject: pkix.Name{
360			CommonName: "*.2.3.4",
361		},
362	}
363	err = c.VerifyHostname("1.2.3.4")
364	if err == nil {
365		t.Fatalf("VerifyHostname(1.2.3.4) should have failed, did not")
366	}
367
368	c = &Certificate{
369		IPAddresses: []net.IP{net.ParseIP("127.0.0.1"), net.ParseIP("::1")},
370	}
371	err = c.VerifyHostname("127.0.0.1")
372	if err != nil {
373		t.Fatalf("VerifyHostname(127.0.0.1): %v", err)
374	}
375	err = c.VerifyHostname("::1")
376	if err != nil {
377		t.Fatalf("VerifyHostname(::1): %v", err)
378	}
379	err = c.VerifyHostname("[::1]")
380	if err != nil {
381		t.Fatalf("VerifyHostname([::1]): %v", err)
382	}
383}
384
385func TestCertificateParse(t *testing.T) {
386	s, _ := hex.DecodeString(certBytes)
387	certs, err := ParseCertificates(s)
388	if err != nil {
389		t.Error(err)
390	}
391	if len(certs) != 2 {
392		t.Errorf("Wrong number of certs: got %d want 2", len(certs))
393		return
394	}
395
396	err = certs[0].CheckSignatureFrom(certs[1])
397	if err != nil {
398		t.Error(err)
399	}
400
401	if err := certs[0].VerifyHostname("mail.google.com"); err != nil {
402		t.Error(err)
403	}
404
405	const expectedExtensions = 4
406	if n := len(certs[0].Extensions); n != expectedExtensions {
407		t.Errorf("want %d extensions, got %d", expectedExtensions, n)
408	}
409}
410
411func TestMismatchedSignatureAlgorithm(t *testing.T) {
412	der, _ := pem.Decode([]byte(rsaPSSSelfSignedPEM))
413	if der == nil {
414		t.Fatal("Failed to find PEM block")
415	}
416
417	cert, err := ParseCertificate(der.Bytes)
418	if err != nil {
419		t.Fatal(err)
420	}
421
422	if err = cert.CheckSignature(ECDSAWithSHA256, nil, nil); err == nil {
423		t.Fatal("CheckSignature unexpectedly return no error")
424	}
425
426	const expectedSubstring = " but have public key of type "
427	if !strings.Contains(err.Error(), expectedSubstring) {
428		t.Errorf("Expected error containing %q, but got %q", expectedSubstring, err)
429	}
430}
431
432var certBytes = "308203223082028ba00302010202106edf0d9499fd4533dd1297fc42a93be1300d06092a864886" +
433	"f70d0101050500304c310b3009060355040613025a4131253023060355040a131c546861777465" +
434	"20436f6e73756c74696e67202850747929204c74642e311630140603550403130d546861777465" +
435	"20534743204341301e170d3039303332353136343932395a170d3130303332353136343932395a" +
436	"3069310b3009060355040613025553311330110603550408130a43616c69666f726e6961311630" +
437	"140603550407130d4d6f756e7461696e205669657731133011060355040a130a476f6f676c6520" +
438	"496e63311830160603550403130f6d61696c2e676f6f676c652e636f6d30819f300d06092a8648" +
439	"86f70d010101050003818d0030818902818100c5d6f892fccaf5614b064149e80a2c9581a218ef" +
440	"41ec35bd7a58125ae76f9ea54ddc893abbeb029f6b73616bf0ffd868791fba7af9c4aebf3706ba" +
441	"3eeaeed27435b4ddcfb157c05f351d66aa87fee0de072d66d773affbd36ab78bef090e0cc861a9" +
442	"03ac90dd98b51c9c41566c017f0beec3bff391051ffba0f5cc6850ad2a590203010001a381e730" +
443	"81e430280603551d250421301f06082b0601050507030106082b06010505070302060960864801" +
444	"86f842040130360603551d1f042f302d302ba029a0278625687474703a2f2f63726c2e74686177" +
445	"74652e636f6d2f54686177746553474343412e63726c307206082b060105050701010466306430" +
446	"2206082b060105050730018616687474703a2f2f6f6373702e7468617774652e636f6d303e0608" +
447	"2b060105050730028632687474703a2f2f7777772e7468617774652e636f6d2f7265706f736974" +
448	"6f72792f5468617774655f5347435f43412e637274300c0603551d130101ff04023000300d0609" +
449	"2a864886f70d01010505000381810062f1f3050ebc105e497c7aedf87e24d2f4a986bb3b837bd1" +
450	"9b91ebcad98b065992f6bd2b49b7d6d3cb2e427a99d606c7b1d46352527fac39e6a8b6726de5bf" +
451	"70212a52cba07634a5e332011bd1868e78eb5e3c93cf03072276786f207494feaa0ed9d53b2110" +
452	"a76571f90209cdae884385c882587030ee15f33d761e2e45a6bc308203233082028ca003020102" +
453	"020430000002300d06092a864886f70d0101050500305f310b3009060355040613025553311730" +
454	"15060355040a130e566572695369676e2c20496e632e31373035060355040b132e436c61737320" +
455	"33205075626c6963205072696d6172792043657274696669636174696f6e20417574686f726974" +
456	"79301e170d3034303531333030303030305a170d3134303531323233353935395a304c310b3009" +
457	"060355040613025a4131253023060355040a131c54686177746520436f6e73756c74696e672028" +
458	"50747929204c74642e311630140603550403130d5468617774652053474320434130819f300d06" +
459	"092a864886f70d010101050003818d0030818902818100d4d367d08d157faecd31fe7d1d91a13f" +
460	"0b713cacccc864fb63fc324b0794bd6f80ba2fe10493c033fc093323e90b742b71c403c6d2cde2" +
461	"2ff50963cdff48a500bfe0e7f388b72d32de9836e60aad007bc4644a3b847503f270927d0e62f5" +
462	"21ab693684317590f8bfc76c881b06957cc9e5a8de75a12c7a68dfd5ca1c875860190203010001" +
463	"a381fe3081fb30120603551d130101ff040830060101ff020100300b0603551d0f040403020106" +
464	"301106096086480186f842010104040302010630280603551d110421301fa41d301b3119301706" +
465	"035504031310507269766174654c6162656c332d313530310603551d1f042a30283026a024a022" +
466	"8620687474703a2f2f63726c2e766572697369676e2e636f6d2f706361332e63726c303206082b" +
467	"0601050507010104263024302206082b060105050730018616687474703a2f2f6f6373702e7468" +
468	"617774652e636f6d30340603551d25042d302b06082b0601050507030106082b06010505070302" +
469	"06096086480186f8420401060a6086480186f845010801300d06092a864886f70d010105050003" +
470	"81810055ac63eadea1ddd2905f9f0bce76be13518f93d9052bc81b774bad6950a1eededcfddb07" +
471	"e9e83994dcab72792f06bfab8170c4a8edea5334edef1e53d906c7562bd15cf4d18a8eb42bb137" +
472	"9048084225c53e8acb7feb6f04d16dc574a2f7a27c7b603c77cd0ece48027f012fb69b37e02a2a" +
473	"36dcd585d6ace53f546f961e05af"
474
475func parseCIDR(s string) *net.IPNet {
476	_, net, err := net.ParseCIDR(s)
477	if err != nil {
478		panic(err)
479	}
480	return net
481}
482
483func parseURI(s string) *url.URL {
484	uri, err := url.Parse(s)
485	if err != nil {
486		panic(err)
487	}
488	return uri
489}
490
491func TestCreateSelfSignedCertificate(t *testing.T) {
492	random := rand.Reader
493
494	ecdsaPriv, err := ecdsa.GenerateKey(elliptic.P256(), rand.Reader)
495	if err != nil {
496		t.Fatalf("Failed to generate ECDSA key: %s", err)
497	}
498
499	tests := []struct {
500		name      string
501		pub, priv interface{}
502		checkSig  bool
503		sigAlgo   SignatureAlgorithm
504	}{
505		{"RSA/RSA", &testPrivateKey.PublicKey, testPrivateKey, true, SHA1WithRSA},
506		{"RSA/ECDSA", &testPrivateKey.PublicKey, ecdsaPriv, false, ECDSAWithSHA384},
507		{"ECDSA/RSA", &ecdsaPriv.PublicKey, testPrivateKey, false, SHA256WithRSA},
508		{"ECDSA/ECDSA", &ecdsaPriv.PublicKey, ecdsaPriv, true, ECDSAWithSHA1},
509		{"RSAPSS/RSAPSS", &testPrivateKey.PublicKey, testPrivateKey, true, SHA256WithRSAPSS},
510		{"ECDSA/RSAPSS", &ecdsaPriv.PublicKey, testPrivateKey, false, SHA256WithRSAPSS},
511		{"RSAPSS/ECDSA", &testPrivateKey.PublicKey, ecdsaPriv, false, ECDSAWithSHA384},
512	}
513
514	testExtKeyUsage := []ExtKeyUsage{ExtKeyUsageClientAuth, ExtKeyUsageServerAuth}
515	testUnknownExtKeyUsage := []asn1.ObjectIdentifier{[]int{1, 2, 3}, []int{2, 59, 1}}
516	extraExtensionData := []byte("extra extension")
517
518	for _, test := range tests {
519		commonName := "test.example.com"
520		template := Certificate{
521			// SerialNumber is negative to ensure that negative
522			// values are parsed. This is due to the prevalence of
523			// buggy code that produces certificates with negative
524			// serial numbers.
525			SerialNumber: big.NewInt(-1),
526			Subject: pkix.Name{
527				CommonName:   commonName,
528				Organization: []string{"Σ Acme Co"},
529				Country:      []string{"US"},
530				ExtraNames: []pkix.AttributeTypeAndValue{
531					{
532						Type:  []int{2, 5, 4, 42},
533						Value: "Gopher",
534					},
535					// This should override the Country, above.
536					{
537						Type:  []int{2, 5, 4, 6},
538						Value: "NL",
539					},
540				},
541			},
542			NotBefore: time.Unix(1000, 0),
543			NotAfter:  time.Unix(100000, 0),
544
545			SignatureAlgorithm: test.sigAlgo,
546
547			SubjectKeyId: []byte{1, 2, 3, 4},
548			KeyUsage:     KeyUsageCertSign,
549
550			ExtKeyUsage:        testExtKeyUsage,
551			UnknownExtKeyUsage: testUnknownExtKeyUsage,
552
553			BasicConstraintsValid: true,
554			IsCA:                  true,
555
556			OCSPServer:            []string{"http://ocsp.example.com"},
557			IssuingCertificateURL: []string{"http://crt.example.com/ca1.crt"},
558
559			DNSNames:       []string{"test.example.com"},
560			EmailAddresses: []string{"gopher@golang.org"},
561			IPAddresses:    []net.IP{net.IPv4(127, 0, 0, 1).To4(), net.ParseIP("2001:4860:0:2001::68")},
562			URIs:           []*url.URL{parseURI("https://foo.com/wibble#foo")},
563
564			PolicyIdentifiers:       []asn1.ObjectIdentifier{[]int{1, 2, 3}},
565			PermittedDNSDomains:     []string{".example.com", "example.com"},
566			ExcludedDNSDomains:      []string{"bar.example.com"},
567			PermittedIPRanges:       []*net.IPNet{parseCIDR("192.168.1.1/16"), parseCIDR("1.2.3.4/8")},
568			ExcludedIPRanges:        []*net.IPNet{parseCIDR("2001:db8::/48")},
569			PermittedEmailAddresses: []string{"foo@example.com"},
570			ExcludedEmailAddresses:  []string{".example.com", "example.com"},
571			PermittedURIDomains:     []string{".bar.com", "bar.com"},
572			ExcludedURIDomains:      []string{".bar2.com", "bar2.com"},
573
574			CRLDistributionPoints: []string{"http://crl1.example.com/ca1.crl", "http://crl2.example.com/ca1.crl"},
575
576			ExtraExtensions: []pkix.Extension{
577				{
578					Id:    []int{1, 2, 3, 4},
579					Value: extraExtensionData,
580				},
581				// This extension should override the SubjectKeyId, above.
582				{
583					Id:       oidExtensionSubjectKeyId,
584					Critical: false,
585					Value:    []byte{0x04, 0x04, 4, 3, 2, 1},
586				},
587			},
588		}
589
590		derBytes, err := CreateCertificate(random, &template, &template, test.pub, test.priv)
591		if err != nil {
592			t.Errorf("%s: failed to create certificate: %s", test.name, err)
593			continue
594		}
595
596		cert, err := ParseCertificate(derBytes)
597		if err != nil {
598			t.Errorf("%s: failed to parse certificate: %s", test.name, err)
599			continue
600		}
601
602		if len(cert.PolicyIdentifiers) != 1 || !cert.PolicyIdentifiers[0].Equal(template.PolicyIdentifiers[0]) {
603			t.Errorf("%s: failed to parse policy identifiers: got:%#v want:%#v", test.name, cert.PolicyIdentifiers, template.PolicyIdentifiers)
604		}
605
606		if len(cert.PermittedDNSDomains) != 2 || cert.PermittedDNSDomains[0] != ".example.com" || cert.PermittedDNSDomains[1] != "example.com" {
607			t.Errorf("%s: failed to parse name constraints: %#v", test.name, cert.PermittedDNSDomains)
608		}
609
610		if len(cert.ExcludedDNSDomains) != 1 || cert.ExcludedDNSDomains[0] != "bar.example.com" {
611			t.Errorf("%s: failed to parse name constraint exclusions: %#v", test.name, cert.ExcludedDNSDomains)
612		}
613
614		if len(cert.PermittedIPRanges) != 2 || cert.PermittedIPRanges[0].String() != "192.168.0.0/16" || cert.PermittedIPRanges[1].String() != "1.0.0.0/8" {
615			t.Errorf("%s: failed to parse IP constraints: %#v", test.name, cert.PermittedIPRanges)
616		}
617
618		if len(cert.ExcludedIPRanges) != 1 || cert.ExcludedIPRanges[0].String() != "2001:db8::/48" {
619			t.Errorf("%s: failed to parse IP constraint exclusions: %#v", test.name, cert.ExcludedIPRanges)
620		}
621
622		if len(cert.PermittedEmailAddresses) != 1 || cert.PermittedEmailAddresses[0] != "foo@example.com" {
623			t.Errorf("%s: failed to parse permitted email addreses: %#v", test.name, cert.PermittedEmailAddresses)
624		}
625
626		if len(cert.ExcludedEmailAddresses) != 2 || cert.ExcludedEmailAddresses[0] != ".example.com" || cert.ExcludedEmailAddresses[1] != "example.com" {
627			t.Errorf("%s: failed to parse excluded email addreses: %#v", test.name, cert.ExcludedEmailAddresses)
628		}
629
630		if len(cert.PermittedURIDomains) != 2 || cert.PermittedURIDomains[0] != ".bar.com" || cert.PermittedURIDomains[1] != "bar.com" {
631			t.Errorf("%s: failed to parse permitted URIs: %#v", test.name, cert.PermittedURIDomains)
632		}
633
634		if len(cert.ExcludedURIDomains) != 2 || cert.ExcludedURIDomains[0] != ".bar2.com" || cert.ExcludedURIDomains[1] != "bar2.com" {
635			t.Errorf("%s: failed to parse excluded URIs: %#v", test.name, cert.ExcludedURIDomains)
636		}
637
638		if cert.Subject.CommonName != commonName {
639			t.Errorf("%s: subject wasn't correctly copied from the template. Got %s, want %s", test.name, cert.Subject.CommonName, commonName)
640		}
641
642		if len(cert.Subject.Country) != 1 || cert.Subject.Country[0] != "NL" {
643			t.Errorf("%s: ExtraNames didn't override Country", test.name)
644		}
645
646		for _, ext := range cert.Extensions {
647			if ext.Id.Equal(oidExtensionSubjectAltName) {
648				if ext.Critical {
649					t.Fatal("SAN extension is marked critical")
650				}
651			}
652		}
653
654		found := false
655		for _, atv := range cert.Subject.Names {
656			if atv.Type.Equal([]int{2, 5, 4, 42}) {
657				found = true
658				break
659			}
660		}
661		if !found {
662			t.Errorf("%s: Names didn't contain oid 2.5.4.42 from ExtraNames", test.name)
663		}
664
665		if cert.Issuer.CommonName != commonName {
666			t.Errorf("%s: issuer wasn't correctly copied from the template. Got %s, want %s", test.name, cert.Issuer.CommonName, commonName)
667		}
668
669		if cert.SignatureAlgorithm != test.sigAlgo {
670			t.Errorf("%s: SignatureAlgorithm wasn't copied from template. Got %v, want %v", test.name, cert.SignatureAlgorithm, test.sigAlgo)
671		}
672
673		if !reflect.DeepEqual(cert.ExtKeyUsage, testExtKeyUsage) {
674			t.Errorf("%s: extkeyusage wasn't correctly copied from the template. Got %v, want %v", test.name, cert.ExtKeyUsage, testExtKeyUsage)
675		}
676
677		if !reflect.DeepEqual(cert.UnknownExtKeyUsage, testUnknownExtKeyUsage) {
678			t.Errorf("%s: unknown extkeyusage wasn't correctly copied from the template. Got %v, want %v", test.name, cert.UnknownExtKeyUsage, testUnknownExtKeyUsage)
679		}
680
681		if !reflect.DeepEqual(cert.OCSPServer, template.OCSPServer) {
682			t.Errorf("%s: OCSP servers differ from template. Got %v, want %v", test.name, cert.OCSPServer, template.OCSPServer)
683		}
684
685		if !reflect.DeepEqual(cert.IssuingCertificateURL, template.IssuingCertificateURL) {
686			t.Errorf("%s: Issuing certificate URLs differ from template. Got %v, want %v", test.name, cert.IssuingCertificateURL, template.IssuingCertificateURL)
687		}
688
689		if !reflect.DeepEqual(cert.DNSNames, template.DNSNames) {
690			t.Errorf("%s: SAN DNS names differ from template. Got %v, want %v", test.name, cert.DNSNames, template.DNSNames)
691		}
692
693		if !reflect.DeepEqual(cert.EmailAddresses, template.EmailAddresses) {
694			t.Errorf("%s: SAN emails differ from template. Got %v, want %v", test.name, cert.EmailAddresses, template.EmailAddresses)
695		}
696
697		if len(cert.URIs) != 1 || cert.URIs[0].String() != "https://foo.com/wibble#foo" {
698			t.Errorf("%s: URIs differ from template. Got %v, want %v", test.name, cert.URIs, template.URIs)
699		}
700
701		if !reflect.DeepEqual(cert.IPAddresses, template.IPAddresses) {
702			t.Errorf("%s: SAN IPs differ from template. Got %v, want %v", test.name, cert.IPAddresses, template.IPAddresses)
703		}
704
705		if !reflect.DeepEqual(cert.CRLDistributionPoints, template.CRLDistributionPoints) {
706			t.Errorf("%s: CRL distribution points differ from template. Got %v, want %v", test.name, cert.CRLDistributionPoints, template.CRLDistributionPoints)
707		}
708
709		if !bytes.Equal(cert.SubjectKeyId, []byte{4, 3, 2, 1}) {
710			t.Errorf("%s: ExtraExtensions didn't override SubjectKeyId", test.name)
711		}
712
713		if !bytes.Contains(derBytes, extraExtensionData) {
714			t.Errorf("%s: didn't find extra extension in DER output", test.name)
715		}
716
717		if test.checkSig {
718			err = cert.CheckSignatureFrom(cert)
719			if err != nil {
720				t.Errorf("%s: signature verification failed: %s", test.name, err)
721			}
722		}
723	}
724}
725
726// Self-signed certificate using ECDSA with SHA1 & secp256r1
727var ecdsaSHA1CertPem = `
728-----BEGIN CERTIFICATE-----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741-----END CERTIFICATE-----
742`
743
744// Self-signed certificate using ECDSA with SHA256 & secp256r1
745var ecdsaSHA256p256CertPem = `
746-----BEGIN CERTIFICATE-----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759-----END CERTIFICATE-----
760`
761
762// Self-signed certificate using ECDSA with SHA256 & secp384r1
763var ecdsaSHA256p384CertPem = `
764-----BEGIN CERTIFICATE-----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778-----END CERTIFICATE-----
779`
780
781// Self-signed certificate using ECDSA with SHA384 & secp521r1
782var ecdsaSHA384p521CertPem = `
783-----BEGIN CERTIFICATE-----
784MIICljCCAfcCCQDhp1AFD/ahKjAKBggqhkjOPQQDAzCBjjELMAkGA1UEBhMCVVMx
785EzARBgNVBAgMCkNhbGlmb3JuaWExFjAUBgNVBAcMDU1vdW50YWluIFZpZXcxFDAS
786BgNVBAoMC0dvb2dsZSwgSW5jMRcwFQYDVQQDDA53d3cuZ29vZ2xlLmNvbTEjMCEG
787CSqGSIb3DQEJARYUZ29sYW5nLWRldkBnbWFpbC5jb20wHhcNMTIwNTIxMTUwNDI5
788WhcNMjIwNTE5MTUwNDI5WjCBjjELMAkGA1UEBhMCVVMxEzARBgNVBAgMCkNhbGlm
789b3JuaWExFjAUBgNVBAcMDU1vdW50YWluIFZpZXcxFDASBgNVBAoMC0dvb2dsZSwg
790SW5jMRcwFQYDVQQDDA53d3cuZ29vZ2xlLmNvbTEjMCEGCSqGSIb3DQEJARYUZ29s
791YW5nLWRldkBnbWFpbC5jb20wgZswEAYHKoZIzj0CAQYFK4EEACMDgYYABACqx9Rv
792IssRs1LWYcNN+WffwlHw4Tv3y8/LIAA9MF1ZScIonU9nRMxt4a2uGJVCPDw6JHpz
793PaYc0E9puLoE9AfKpwFr59Jkot7dBg55SKPEFkddoip/rvmN7NPAWjMBirOwjOkm
7948FPthvPhGPqsu9AvgVuHu3PosWiHGNrhh379pva8MzAKBggqhkjOPQQDAwOBjAAw
795gYgCQgEHNmswkUdPpHqrVxp9PvLVl+xxPuHBkT+75z9JizyxtqykHQo9Uh6SWCYH
796BF9KLolo01wMt8DjoYP5Fb3j5MH7xwJCAbWZzTOp4l4DPkIvAh4LeC4VWbwPPyqh
797kBg71w/iEcSY3wUKgHGcJJrObZw7wys91I5kENljqw/Samdr3ka+jBJa
798-----END CERTIFICATE-----
799`
800
801var ecdsaTests = []struct {
802	sigAlgo SignatureAlgorithm
803	pemCert string
804}{
805	{ECDSAWithSHA1, ecdsaSHA1CertPem},
806	{ECDSAWithSHA256, ecdsaSHA256p256CertPem},
807	{ECDSAWithSHA256, ecdsaSHA256p384CertPem},
808	{ECDSAWithSHA384, ecdsaSHA384p521CertPem},
809}
810
811func TestECDSA(t *testing.T) {
812	for i, test := range ecdsaTests {
813		pemBlock, _ := pem.Decode([]byte(test.pemCert))
814		cert, err := ParseCertificate(pemBlock.Bytes)
815		if err != nil {
816			t.Errorf("%d: failed to parse certificate: %s", i, err)
817			continue
818		}
819		if sa := cert.SignatureAlgorithm; sa != test.sigAlgo {
820			t.Errorf("%d: signature algorithm is %v, want %v", i, sa, test.sigAlgo)
821		}
822		if parsedKey, ok := cert.PublicKey.(*ecdsa.PublicKey); !ok {
823			t.Errorf("%d: wanted an ECDSA public key but found: %#v", i, parsedKey)
824		}
825		if pka := cert.PublicKeyAlgorithm; pka != ECDSA {
826			t.Errorf("%d: public key algorithm is %v, want ECDSA", i, pka)
827		}
828		if err = cert.CheckSignatureFrom(cert); err != nil {
829			t.Errorf("%d: certificate verification failed: %s", i, err)
830		}
831	}
832}
833
834// Self-signed certificate using DSA with SHA1
835var dsaCertPem = `-----BEGIN CERTIFICATE-----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858-----END CERTIFICATE-----
859`
860
861func TestParseCertificateWithDsaPublicKey(t *testing.T) {
862	expectedKey := &dsa.PublicKey{
863		Parameters: dsa.Parameters{
864			P: bigFromHexString("00BC84B52743B169158BB85974E3E832AF5EFCFC42B264349095313A4A013EEE069A1B937D92E51ACF297A1C77880DF25C8607D8204B4DC45651305EF4A63B40C7D8C42D91EDA397D8F51CBC9D0A531FE2C6F1E55E9357D205C39D395358968CBEDAC11320C607BE16CB9DB492B6E78163305A34DD99CE43C64927D13A0040EB97"),
865			Q: bigFromHexString("009A67067F66A323F5D4EC7902C73FE5D9E36FA74F"),
866			G: bigFromHexString("009147778295BF5893542BC41BA806898A29E43261DBC85441C37D92E97ED80D323D44825FDDE8374D0FF15877798812682599B216BBCC31B9DCCAD527465FEAFFD7FC2A193612E575E34E7A98AF4D10339FE47390A518CB9975B3160B1D0285D1418D0977C52994F43C29A053E3D685834104C9FAFDC221E38BE9F3989D7A8E42"),
867		},
868		Y: bigFromHexString("59A27C269FCDE45AA2160A5C980C19211A820095091AB9C5DC8309AB7EC1B3A48C2E267C6D35FEE9B71BCBB92F16AC8E559129347FB5C00BEEDD10BA8915C90698755CA965735A32DC7575BED806E1E38F768FFBC24E41123DC73F1C6E9E4D0C9E692128853AFE29DC665FA993DCA9C903B7BF00B6442B9A76A5DADC6186317A"),
869	}
870	pemBlock, _ := pem.Decode([]byte(dsaCertPem))
871	cert, err := ParseCertificate(pemBlock.Bytes)
872	if err != nil {
873		t.Fatalf("Failed to parse certificate: %s", err)
874	}
875	if cert.PublicKeyAlgorithm != DSA {
876		t.Errorf("Parsed key algorithm was not DSA")
877	}
878	parsedKey, ok := cert.PublicKey.(*dsa.PublicKey)
879	if !ok {
880		t.Fatalf("Parsed key was not a DSA key: %s", err)
881	}
882	if expectedKey.Y.Cmp(parsedKey.Y) != 0 ||
883		expectedKey.P.Cmp(parsedKey.P) != 0 ||
884		expectedKey.Q.Cmp(parsedKey.Q) != 0 ||
885		expectedKey.G.Cmp(parsedKey.G) != 0 {
886		t.Fatal("Parsed key differs from expected key")
887	}
888}
889
890func TestParseCertificateWithDSASignatureAlgorithm(t *testing.T) {
891	pemBlock, _ := pem.Decode([]byte(dsaCertPem))
892	cert, err := ParseCertificate(pemBlock.Bytes)
893	if err != nil {
894		t.Fatalf("Failed to parse certificate: %s", err)
895	}
896	if cert.SignatureAlgorithm != DSAWithSHA1 {
897		t.Errorf("Parsed signature algorithm was not DSAWithSHA1")
898	}
899}
900
901func TestVerifyCertificateWithDSASignature(t *testing.T) {
902	pemBlock, _ := pem.Decode([]byte(dsaCertPem))
903	cert, err := ParseCertificate(pemBlock.Bytes)
904	if err != nil {
905		t.Fatalf("Failed to parse certificate: %s", err)
906	}
907	// test cert is self-signed
908	if err = cert.CheckSignatureFrom(cert); err != nil {
909		t.Fatalf("DSA Certificate verification failed: %s", err)
910	}
911}
912
913var rsaPSSSelfSignedPEM = `-----BEGIN CERTIFICATE-----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947-----END CERTIFICATE-----`
948
949// openssl req -newkey rsa:2048 -keyout test.key -sha256 -sigopt \
950// rsa_padding_mode:pss -sigopt rsa_pss_saltlen:32 -sigopt rsa_mgf1_md:sha256 \
951// -x509 -days 3650 -nodes -subj '/C=US/ST=CA/L=SF/O=Test/CN=Test' -out \
952// test.pem
953var rsaPSSSelfSignedOpenSSL110PEM = `-----BEGIN CERTIFICATE-----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975-----END CERTIFICATE-----`
976
977func TestRSAPSSSelfSigned(t *testing.T) {
978	for i, pemBlock := range []string{rsaPSSSelfSignedPEM, rsaPSSSelfSignedOpenSSL110PEM} {
979		der, _ := pem.Decode([]byte(pemBlock))
980		if der == nil {
981			t.Errorf("#%d: failed to find PEM block", i)
982			continue
983		}
984
985		cert, err := ParseCertificate(der.Bytes)
986		if err != nil {
987			t.Errorf("#%d: failed to parse: %s", i, err)
988			continue
989		}
990
991		if err = cert.CheckSignatureFrom(cert); err != nil {
992			t.Errorf("#%d: signature check failed: %s", i, err)
993			continue
994		}
995	}
996}
997
998const pemCertificate = `-----BEGIN CERTIFICATE-----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1016-----END CERTIFICATE-----`
1017
1018func TestCRLCreation(t *testing.T) {
1019	block, _ := pem.Decode([]byte(pemPrivateKey))
1020	priv, _ := ParsePKCS1PrivateKey(block.Bytes)
1021	block, _ = pem.Decode([]byte(pemCertificate))
1022	cert, _ := ParseCertificate(block.Bytes)
1023
1024	loc := time.FixedZone("Oz/Atlantis", int((2 * time.Hour).Seconds()))
1025
1026	now := time.Unix(1000, 0).In(loc)
1027	nowUTC := now.UTC()
1028	expiry := time.Unix(10000, 0)
1029
1030	revokedCerts := []pkix.RevokedCertificate{
1031		{
1032			SerialNumber:   big.NewInt(1),
1033			RevocationTime: nowUTC,
1034		},
1035		{
1036			SerialNumber: big.NewInt(42),
1037			// RevocationTime should be converted to UTC before marshaling.
1038			RevocationTime: now,
1039		},
1040	}
1041	expectedCerts := []pkix.RevokedCertificate{
1042		{
1043			SerialNumber:   big.NewInt(1),
1044			RevocationTime: nowUTC,
1045		},
1046		{
1047			SerialNumber:   big.NewInt(42),
1048			RevocationTime: nowUTC,
1049		},
1050	}
1051
1052	crlBytes, err := cert.CreateCRL(rand.Reader, priv, revokedCerts, now, expiry)
1053	if err != nil {
1054		t.Errorf("error creating CRL: %s", err)
1055	}
1056
1057	parsedCRL, err := ParseDERCRL(crlBytes)
1058	if err != nil {
1059		t.Errorf("error reparsing CRL: %s", err)
1060	}
1061	if !reflect.DeepEqual(parsedCRL.TBSCertList.RevokedCertificates, expectedCerts) {
1062		t.Errorf("RevokedCertificates mismatch: got %v; want %v.",
1063			parsedCRL.TBSCertList.RevokedCertificates, expectedCerts)
1064	}
1065}
1066
1067func fromBase64(in string) []byte {
1068	out := make([]byte, base64.StdEncoding.DecodedLen(len(in)))
1069	n, err := base64.StdEncoding.Decode(out, []byte(in))
1070	if err != nil {
1071		panic("failed to base64 decode")
1072	}
1073	return out[:n]
1074}
1075
1076func TestParseDERCRL(t *testing.T) {
1077	derBytes := fromBase64(derCRLBase64)
1078	certList, err := ParseDERCRL(derBytes)
1079	if err != nil {
1080		t.Errorf("error parsing: %s", err)
1081		return
1082	}
1083	numCerts := len(certList.TBSCertList.RevokedCertificates)
1084	expected := 88
1085	if numCerts != expected {
1086		t.Errorf("bad number of revoked certificates. got: %d want: %d", numCerts, expected)
1087	}
1088
1089	if certList.HasExpired(time.Unix(1302517272, 0)) {
1090		t.Errorf("CRL has expired (but shouldn't have)")
1091	}
1092
1093	// Can't check the signature here without a package cycle.
1094}
1095
1096func TestCRLWithoutExpiry(t *testing.T) {
1097	derBytes := fromBase64("MIHYMIGZMAkGByqGSM44BAMwEjEQMA4GA1UEAxMHQ2FybERTUxcNOTkwODI3MDcwMDAwWjBpMBMCAgDIFw05OTA4MjIwNzAwMDBaMBMCAgDJFw05OTA4MjIwNzAwMDBaMBMCAgDTFw05OTA4MjIwNzAwMDBaMBMCAgDSFw05OTA4MjIwNzAwMDBaMBMCAgDUFw05OTA4MjQwNzAwMDBaMAkGByqGSM44BAMDLwAwLAIUfmVSdjP+NHMX0feW+aDU2G1cfT0CFAJ6W7fVWxjBz4fvftok8yqDnDWh")
1098	certList, err := ParseDERCRL(derBytes)
1099	if err != nil {
1100		t.Fatal(err)
1101	}
1102	if !certList.TBSCertList.NextUpdate.IsZero() {
1103		t.Errorf("NextUpdate is not the zero value")
1104	}
1105}
1106
1107func TestParsePEMCRL(t *testing.T) {
1108	pemBytes := fromBase64(pemCRLBase64)
1109	certList, err := ParseCRL(pemBytes)
1110	if err != nil {
1111		t.Errorf("error parsing: %s", err)
1112		return
1113	}
1114	numCerts := len(certList.TBSCertList.RevokedCertificates)
1115	expected := 2
1116	if numCerts != expected {
1117		t.Errorf("bad number of revoked certificates. got: %d want: %d", numCerts, expected)
1118	}
1119
1120	if certList.HasExpired(time.Unix(1302517272, 0)) {
1121		t.Errorf("CRL has expired (but shouldn't have)")
1122	}
1123
1124	// Can't check the signature here without a package cycle.
1125}
1126
1127func TestImports(t *testing.T) {
1128	testenv.MustHaveGoRun(t)
1129
1130	if err := exec.Command(testenv.GoToolPath(t), "run", "x509_test_import.go").Run(); err != nil {
1131		t.Errorf("failed to run x509_test_import.go: %s", err)
1132	}
1133}
1134
1135const derCRLBase64 = "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"
1136
1137const pemCRLBase64 = "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"
1138
1139func TestCreateCertificateRequest(t *testing.T) {
1140	random := rand.Reader
1141
1142	ecdsa256Priv, err := ecdsa.GenerateKey(elliptic.P256(), rand.Reader)
1143	if err != nil {
1144		t.Fatalf("Failed to generate ECDSA key: %s", err)
1145	}
1146
1147	ecdsa384Priv, err := ecdsa.GenerateKey(elliptic.P384(), rand.Reader)
1148	if err != nil {
1149		t.Fatalf("Failed to generate ECDSA key: %s", err)
1150	}
1151
1152	ecdsa521Priv, err := ecdsa.GenerateKey(elliptic.P521(), rand.Reader)
1153	if err != nil {
1154		t.Fatalf("Failed to generate ECDSA key: %s", err)
1155	}
1156
1157	tests := []struct {
1158		name    string
1159		priv    interface{}
1160		sigAlgo SignatureAlgorithm
1161	}{
1162		{"RSA", testPrivateKey, SHA1WithRSA},
1163		{"ECDSA-256", ecdsa256Priv, ECDSAWithSHA1},
1164		{"ECDSA-384", ecdsa384Priv, ECDSAWithSHA1},
1165		{"ECDSA-521", ecdsa521Priv, ECDSAWithSHA1},
1166	}
1167
1168	for _, test := range tests {
1169		template := CertificateRequest{
1170			Subject: pkix.Name{
1171				CommonName:   "test.example.com",
1172				Organization: []string{"Σ Acme Co"},
1173			},
1174			SignatureAlgorithm: test.sigAlgo,
1175			DNSNames:           []string{"test.example.com"},
1176			EmailAddresses:     []string{"gopher@golang.org"},
1177			IPAddresses:        []net.IP{net.IPv4(127, 0, 0, 1).To4(), net.ParseIP("2001:4860:0:2001::68")},
1178		}
1179
1180		derBytes, err := CreateCertificateRequest(random, &template, test.priv)
1181		if err != nil {
1182			t.Errorf("%s: failed to create certificate request: %s", test.name, err)
1183			continue
1184		}
1185
1186		out, err := ParseCertificateRequest(derBytes)
1187		if err != nil {
1188			t.Errorf("%s: failed to create certificate request: %s", test.name, err)
1189			continue
1190		}
1191
1192		err = out.CheckSignature()
1193		if err != nil {
1194			t.Errorf("%s: failed to check certificate request signature: %s", test.name, err)
1195			continue
1196		}
1197
1198		if out.Subject.CommonName != template.Subject.CommonName {
1199			t.Errorf("%s: output subject common name and template subject common name don't match", test.name)
1200		} else if len(out.Subject.Organization) != len(template.Subject.Organization) {
1201			t.Errorf("%s: output subject organisation and template subject organisation don't match", test.name)
1202		} else if len(out.DNSNames) != len(template.DNSNames) {
1203			t.Errorf("%s: output DNS names and template DNS names don't match", test.name)
1204		} else if len(out.EmailAddresses) != len(template.EmailAddresses) {
1205			t.Errorf("%s: output email addresses and template email addresses don't match", test.name)
1206		} else if len(out.IPAddresses) != len(template.IPAddresses) {
1207			t.Errorf("%s: output IP addresses and template IP addresses names don't match", test.name)
1208		}
1209	}
1210}
1211
1212func marshalAndParseCSR(t *testing.T, template *CertificateRequest) *CertificateRequest {
1213	derBytes, err := CreateCertificateRequest(rand.Reader, template, testPrivateKey)
1214	if err != nil {
1215		t.Fatal(err)
1216	}
1217
1218	csr, err := ParseCertificateRequest(derBytes)
1219	if err != nil {
1220		t.Fatal(err)
1221	}
1222
1223	return csr
1224}
1225
1226func TestCertificateRequestOverrides(t *testing.T) {
1227	sanContents, err := marshalSANs([]string{"foo.example.com"}, nil, nil, nil)
1228	if err != nil {
1229		t.Fatal(err)
1230	}
1231
1232	template := CertificateRequest{
1233		Subject: pkix.Name{
1234			CommonName:   "test.example.com",
1235			Organization: []string{"Σ Acme Co"},
1236		},
1237		DNSNames: []string{"test.example.com"},
1238
1239		// An explicit extension should override the DNSNames from the
1240		// template.
1241		ExtraExtensions: []pkix.Extension{
1242			{
1243				Id:       oidExtensionSubjectAltName,
1244				Value:    sanContents,
1245				Critical: true,
1246			},
1247		},
1248	}
1249
1250	csr := marshalAndParseCSR(t, &template)
1251
1252	if len(csr.DNSNames) != 1 || csr.DNSNames[0] != "foo.example.com" {
1253		t.Errorf("Extension did not override template. Got %v\n", csr.DNSNames)
1254	}
1255
1256	if len(csr.Extensions) != 1 || !csr.Extensions[0].Id.Equal(oidExtensionSubjectAltName) || !csr.Extensions[0].Critical {
1257		t.Errorf("SAN extension was not faithfully copied, got %#v", csr.Extensions)
1258	}
1259
1260	// If there is already an attribute with X.509 extensions then the
1261	// extra extensions should be added to it rather than creating a CSR
1262	// with two extension attributes.
1263
1264	template.Attributes = []pkix.AttributeTypeAndValueSET{
1265		{
1266			Type: oidExtensionRequest,
1267			Value: [][]pkix.AttributeTypeAndValue{
1268				{
1269					{
1270						Type:  oidExtensionAuthorityInfoAccess,
1271						Value: []byte("foo"),
1272					},
1273				},
1274			},
1275		},
1276	}
1277
1278	csr = marshalAndParseCSR(t, &template)
1279	if l := len(csr.Attributes); l != 1 {
1280		t.Errorf("incorrect number of attributes: %d\n", l)
1281	}
1282
1283	if !csr.Attributes[0].Type.Equal(oidExtensionRequest) ||
1284		len(csr.Attributes[0].Value) != 1 ||
1285		len(csr.Attributes[0].Value[0]) != 2 {
1286		t.Errorf("bad attributes: %#v\n", csr.Attributes)
1287	}
1288
1289	sanContents2, err := marshalSANs([]string{"foo2.example.com"}, nil, nil, nil)
1290	if err != nil {
1291		t.Fatal(err)
1292	}
1293
1294	// Extensions in Attributes should override those in ExtraExtensions.
1295	template.Attributes[0].Value[0] = append(template.Attributes[0].Value[0], pkix.AttributeTypeAndValue{
1296		Type:  oidExtensionSubjectAltName,
1297		Value: sanContents2,
1298	})
1299
1300	csr = marshalAndParseCSR(t, &template)
1301
1302	if len(csr.DNSNames) != 1 || csr.DNSNames[0] != "foo2.example.com" {
1303		t.Errorf("Attributes did not override ExtraExtensions. Got %v\n", csr.DNSNames)
1304	}
1305}
1306
1307func TestParseCertificateRequest(t *testing.T) {
1308	for _, csrBase64 := range csrBase64Array {
1309		csrBytes := fromBase64(csrBase64)
1310		csr, err := ParseCertificateRequest(csrBytes)
1311		if err != nil {
1312			t.Fatalf("failed to parse CSR: %s", err)
1313		}
1314
1315		if len(csr.EmailAddresses) != 1 || csr.EmailAddresses[0] != "gopher@golang.org" {
1316			t.Errorf("incorrect email addresses found: %v", csr.EmailAddresses)
1317		}
1318
1319		if len(csr.DNSNames) != 1 || csr.DNSNames[0] != "test.example.com" {
1320			t.Errorf("incorrect DNS names found: %v", csr.DNSNames)
1321		}
1322
1323		if len(csr.Subject.Country) != 1 || csr.Subject.Country[0] != "AU" {
1324			t.Errorf("incorrect Subject name: %v", csr.Subject)
1325		}
1326
1327		found := false
1328		for _, e := range csr.Extensions {
1329			if e.Id.Equal(oidExtensionBasicConstraints) {
1330				found = true
1331				break
1332			}
1333		}
1334		if !found {
1335			t.Errorf("basic constraints extension not found in CSR")
1336		}
1337	}
1338}
1339
1340func TestCriticalFlagInCSRRequestedExtensions(t *testing.T) {
1341	// This CSR contains an extension request where the extensions have a
1342	// critical flag in them. In the past we failed to handle this.
1343	const csrBase64 = "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"
1344
1345	csrBytes := fromBase64(csrBase64)
1346	csr, err := ParseCertificateRequest(csrBytes)
1347	if err != nil {
1348		t.Fatalf("failed to parse CSR: %s", err)
1349	}
1350
1351	expected := []struct {
1352		Id    asn1.ObjectIdentifier
1353		Value []byte
1354	}{
1355		{oidExtensionBasicConstraints, fromBase64("MAYBAf8CAQA=")},
1356		{oidExtensionKeyUsage, fromBase64("AwIChA==")},
1357	}
1358
1359	if n := len(csr.Extensions); n != len(expected) {
1360		t.Fatalf("expected to find %d extensions but found %d", len(expected), n)
1361	}
1362
1363	for i, extension := range csr.Extensions {
1364		if !extension.Id.Equal(expected[i].Id) {
1365			t.Fatalf("extension #%d has unexpected type %v (expected %v)", i, extension.Id, expected[i].Id)
1366		}
1367
1368		if !bytes.Equal(extension.Value, expected[i].Value) {
1369			t.Fatalf("extension #%d has unexpected contents %x (expected %x)", i, extension.Value, expected[i].Value)
1370		}
1371	}
1372}
1373
1374// serialiseAndParse generates a self-signed certificate from template and
1375// returns a parsed version of it.
1376func serialiseAndParse(t *testing.T, template *Certificate) *Certificate {
1377	derBytes, err := CreateCertificate(rand.Reader, template, template, &testPrivateKey.PublicKey, testPrivateKey)
1378	if err != nil {
1379		t.Fatalf("failed to create certificate: %s", err)
1380		return nil
1381	}
1382
1383	cert, err := ParseCertificate(derBytes)
1384	if err != nil {
1385		t.Fatalf("failed to parse certificate: %s", err)
1386		return nil
1387	}
1388
1389	return cert
1390}
1391
1392func TestMaxPathLen(t *testing.T) {
1393	template := &Certificate{
1394		SerialNumber: big.NewInt(1),
1395		Subject: pkix.Name{
1396			CommonName: "Σ Acme Co",
1397		},
1398		NotBefore: time.Unix(1000, 0),
1399		NotAfter:  time.Unix(100000, 0),
1400
1401		BasicConstraintsValid: true,
1402		IsCA:                  true,
1403	}
1404
1405	cert1 := serialiseAndParse(t, template)
1406	if m := cert1.MaxPathLen; m != -1 {
1407		t.Errorf("Omitting MaxPathLen didn't turn into -1, got %d", m)
1408	}
1409	if cert1.MaxPathLenZero {
1410		t.Errorf("Omitting MaxPathLen resulted in MaxPathLenZero")
1411	}
1412
1413	template.MaxPathLen = 1
1414	cert2 := serialiseAndParse(t, template)
1415	if m := cert2.MaxPathLen; m != 1 {
1416		t.Errorf("Setting MaxPathLen didn't work. Got %d but set 1", m)
1417	}
1418	if cert2.MaxPathLenZero {
1419		t.Errorf("Setting MaxPathLen resulted in MaxPathLenZero")
1420	}
1421
1422	template.MaxPathLen = 0
1423	template.MaxPathLenZero = true
1424	cert3 := serialiseAndParse(t, template)
1425	if m := cert3.MaxPathLen; m != 0 {
1426		t.Errorf("Setting MaxPathLenZero didn't work, got %d", m)
1427	}
1428	if !cert3.MaxPathLenZero {
1429		t.Errorf("Setting MaxPathLen to zero didn't result in MaxPathLenZero")
1430	}
1431}
1432
1433func TestNoAuthorityKeyIdInSelfSignedCert(t *testing.T) {
1434	template := &Certificate{
1435		SerialNumber: big.NewInt(1),
1436		Subject: pkix.Name{
1437			CommonName: "Σ Acme Co",
1438		},
1439		NotBefore: time.Unix(1000, 0),
1440		NotAfter:  time.Unix(100000, 0),
1441
1442		BasicConstraintsValid: true,
1443		IsCA:                  true,
1444		SubjectKeyId:          []byte{1, 2, 3, 4},
1445	}
1446
1447	if cert := serialiseAndParse(t, template); len(cert.AuthorityKeyId) != 0 {
1448		t.Fatalf("self-signed certificate contained default authority key id")
1449	}
1450
1451	template.AuthorityKeyId = []byte{1, 2, 3, 4}
1452	if cert := serialiseAndParse(t, template); len(cert.AuthorityKeyId) == 0 {
1453		t.Fatalf("self-signed certificate erased explicit authority key id")
1454	}
1455}
1456
1457func TestASN1BitLength(t *testing.T) {
1458	tests := []struct {
1459		bytes  []byte
1460		bitLen int
1461	}{
1462		{nil, 0},
1463		{[]byte{0x00}, 0},
1464		{[]byte{0x00, 0x00}, 0},
1465		{[]byte{0xf0}, 4},
1466		{[]byte{0x88}, 5},
1467		{[]byte{0xff}, 8},
1468		{[]byte{0xff, 0x80}, 9},
1469		{[]byte{0xff, 0x81}, 16},
1470	}
1471
1472	for i, test := range tests {
1473		if got := asn1BitLength(test.bytes); got != test.bitLen {
1474			t.Errorf("#%d: calculated bit-length of %d for %x, wanted %d", i, got, test.bytes, test.bitLen)
1475		}
1476	}
1477}
1478
1479func TestVerifyEmptyCertificate(t *testing.T) {
1480	if _, err := new(Certificate).Verify(VerifyOptions{}); err != errNotParsed {
1481		t.Errorf("Verifying empty certificate resulted in unexpected error: %q (wanted %q)", err, errNotParsed)
1482	}
1483}
1484
1485func TestInsecureAlgorithmErrorString(t *testing.T) {
1486	tests := []struct {
1487		sa   SignatureAlgorithm
1488		want string
1489	}{
1490		{MD2WithRSA, "x509: cannot verify signature: insecure algorithm MD2-RSA"},
1491		{-1, "x509: cannot verify signature: insecure algorithm -1"},
1492		{0, "x509: cannot verify signature: insecure algorithm 0"},
1493		{9999, "x509: cannot verify signature: insecure algorithm 9999"},
1494	}
1495	for i, tt := range tests {
1496		if got := fmt.Sprint(InsecureAlgorithmError(tt.sa)); got != tt.want {
1497			t.Errorf("%d. mismatch.\n got: %s\nwant: %s\n", i, got, tt.want)
1498		}
1499	}
1500}
1501
1502// These CSR was generated with OpenSSL:
1503//  openssl req -out CSR.csr -new -sha256 -nodes -keyout privateKey.key -config openssl.cnf
1504//
1505// With openssl.cnf containing the following sections:
1506//   [ v3_req ]
1507//   basicConstraints = CA:FALSE
1508//   keyUsage = nonRepudiation, digitalSignature, keyEncipherment
1509//   subjectAltName = email:gopher@golang.org,DNS:test.example.com
1510//   [ req_attributes ]
1511//   challengePassword = ignored challenge
1512//   unstructuredName  = ignored unstructured name
1513var csrBase64Array = [...]string{
1514	// Just [ v3_req ]
1515	"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",
1516	// Both [ v3_req ] and [ req_attributes ]
1517	"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",
1518}
1519
1520var md5cert = `
1521-----BEGIN CERTIFICATE-----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1533-----END CERTIFICATE-----
1534`
1535
1536func TestMD5(t *testing.T) {
1537	pemBlock, _ := pem.Decode([]byte(md5cert))
1538	cert, err := ParseCertificate(pemBlock.Bytes)
1539	if err != nil {
1540		t.Fatalf("failed to parse certificate: %s", err)
1541	}
1542	if sa := cert.SignatureAlgorithm; sa != MD5WithRSA {
1543		t.Errorf("signature algorithm is %v, want %v", sa, MD5WithRSA)
1544	}
1545	if err = cert.CheckSignatureFrom(cert); err == nil {
1546		t.Fatalf("certificate verification succeeded incorrectly")
1547	}
1548	if _, ok := err.(InsecureAlgorithmError); !ok {
1549		t.Fatalf("certificate verification returned %v (%T), wanted InsecureAlgorithmError", err, err)
1550	}
1551}
1552
1553// certMissingRSANULL contains an RSA public key where the AlgorithmIdentifer
1554// parameters are omitted rather than being an ASN.1 NULL.
1555const certMissingRSANULL = `
1556-----BEGIN CERTIFICATE-----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1568-----END CERTIFICATE-----`
1569
1570func TestRSAMissingNULLParameters(t *testing.T) {
1571	block, _ := pem.Decode([]byte(certMissingRSANULL))
1572	if _, err := ParseCertificate(block.Bytes); err == nil {
1573		t.Error("unexpected success when parsing certificate with missing RSA NULL parameter")
1574	} else if !strings.Contains(err.Error(), "missing NULL") {
1575		t.Errorf("unrecognised error when parsing certificate with missing RSA NULL parameter: %s", err)
1576	}
1577}
1578
1579const certISOOID = `
1580-----BEGIN CERTIFICATE-----
1581MIIB5TCCAVKgAwIBAgIQtwyL3RPWV7dJQp34HwZG9DAJBgUrDgMCHQUAMBExDzAN
1582BgNVBAMTBm15dGVzdDAeFw0xNjA4MDkyMjExMDVaFw0zOTEyMzEyMzU5NTlaMBEx
1583DzANBgNVBAMTBm15dGVzdDCBnzANBgkqhkiG9w0BAQEFAAOBjQAwgYkCgYEArzIH
1584GsyDB3ohIGkkvijF2PTRUX1bvOtY1eUUpjwHyu0twpAKSuaQv2Ha+/63+aHe8O86
1585BT+98wjXFX6RFSagtAujo80rIF2dSm33BGt18pDN8v6zp93dnAm0jRaSQrHJ75xw
15865O+S1oEYR1LtUoFJy6qB104j6aINBAgOiLIKiMkCAwEAAaNGMEQwQgYDVR0BBDsw
1587OYAQVuYVQ/WDjdGSkZRlTtJDNKETMBExDzANBgNVBAMTBm15dGVzdIIQtwyL3RPW
1588V7dJQp34HwZG9DAJBgUrDgMCHQUAA4GBABngrSkH7vG5lY4sa4AZF59lAAXqBVJE
1589J4TBiKC62hCdZv18rBleP6ETfhbPg7pTs8p4ebQbpmtNxRS9Lw3MzQ8Ya5Ybwzj2
1590NwBSyCtCQl7mrEg4nJqJl4A2EUhnET/oVxU0oTV/SZ3ziGXcY1oG1s6vidV7TZTu
1591MCRtdSdaM7g3
1592-----END CERTIFICATE-----`
1593
1594func TestISOOIDInCertificate(t *testing.T) {
1595	block, _ := pem.Decode([]byte(certISOOID))
1596	if cert, err := ParseCertificate(block.Bytes); err != nil {
1597		t.Errorf("certificate with ISO OID failed to parse: %s", err)
1598	} else if cert.SignatureAlgorithm == UnknownSignatureAlgorithm {
1599		t.Errorf("ISO OID not recognised in certificate")
1600	}
1601}
1602
1603// certMultipleRDN contains a RelativeDistinguishedName with two elements (the
1604// common name and serial number). This particular certificate was the first
1605// such certificate in the “Pilot” Certificate Transparency log.
1606const certMultipleRDN = `
1607-----BEGIN CERTIFICATE-----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1637-----END CERTIFICATE-----`
1638
1639func TestMultipleRDN(t *testing.T) {
1640	block, _ := pem.Decode([]byte(certMultipleRDN))
1641	cert, err := ParseCertificate(block.Bytes)
1642	if err != nil {
1643		t.Fatalf("certificate with two elements in an RDN failed to parse: %v", err)
1644	}
1645
1646	if want := "eportal.mss.edus.si"; cert.Subject.CommonName != want {
1647		t.Errorf("got common name of %q, but want %q", cert.Subject.CommonName, want)
1648	}
1649
1650	if want := "1236484010010"; cert.Subject.SerialNumber != want {
1651		t.Errorf("got serial number of %q, but want %q", cert.Subject.SerialNumber, want)
1652	}
1653}
1654
1655func TestSystemCertPool(t *testing.T) {
1656	if runtime.GOOS == "windows" {
1657		t.Skip("not implemented on Windows; Issue 16736, 18609")
1658	}
1659	a, err := SystemCertPool()
1660	if err != nil {
1661		t.Fatal(err)
1662	}
1663	b, err := SystemCertPool()
1664	if err != nil {
1665		t.Fatal(err)
1666	}
1667	if !reflect.DeepEqual(a, b) {
1668		t.Fatal("two calls to SystemCertPool had different results")
1669	}
1670	if ok := b.AppendCertsFromPEM([]byte(`
1671-----BEGIN CERTIFICATE-----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1689-----END CERTIFICATE-----
1690	`)); !ok {
1691		t.Fatal("AppendCertsFromPEM failed")
1692	}
1693	if reflect.DeepEqual(a, b) {
1694		t.Fatal("changing one pool modified the other")
1695	}
1696}
1697
1698const emptyNameConstraintsPEM = `
1699-----BEGIN CERTIFICATE-----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1716-----END CERTIFICATE-----`
1717
1718func TestEmptyNameConstraints(t *testing.T) {
1719	block, _ := pem.Decode([]byte(emptyNameConstraintsPEM))
1720	_, err := ParseCertificate(block.Bytes)
1721	if err == nil {
1722		t.Fatal("unexpected success")
1723	}
1724
1725	const expected = "empty name constraints"
1726	if str := err.Error(); !strings.Contains(str, expected) {
1727		t.Errorf("expected %q in error but got %q", expected, str)
1728	}
1729}
1730
1731func TestPKIXNameString(t *testing.T) {
1732	pem, err := hex.DecodeString(certBytes)
1733	if err != nil {
1734		t.Fatal(err)
1735	}
1736	certs, err := ParseCertificates(pem)
1737	if err != nil {
1738		t.Fatal(err)
1739	}
1740
1741	tests := []struct {
1742		dn   pkix.Name
1743		want string
1744	}{
1745		{pkix.Name{
1746			CommonName:         "Steve Kille",
1747			Organization:       []string{"Isode Limited"},
1748			OrganizationalUnit: []string{"RFCs"},
1749			Locality:           []string{"Richmond"},
1750			Province:           []string{"Surrey"},
1751			StreetAddress:      []string{"The Square"},
1752			PostalCode:         []string{"TW9 1DT"},
1753			SerialNumber:       "RFC 2253",
1754			Country:            []string{"GB"},
1755		}, "SERIALNUMBER=RFC 2253,CN=Steve Kille,OU=RFCs,O=Isode Limited,POSTALCODE=TW9 1DT,STREET=The Square,L=Richmond,ST=Surrey,C=GB"},
1756		{certs[0].Subject,
1757			"CN=mail.google.com,O=Google Inc,L=Mountain View,ST=California,C=US"},
1758		{pkix.Name{
1759			Organization: []string{"#Google, Inc. \n-> 'Alphabet\" "},
1760			Country:      []string{"US"},
1761		}, "O=\\#Google\\, Inc. \n-\\> 'Alphabet\\\"\\ ,C=US"},
1762		{pkix.Name{
1763			CommonName:   "foo.com",
1764			Organization: []string{"Gopher Industries"},
1765			ExtraNames: []pkix.AttributeTypeAndValue{
1766				{Type: asn1.ObjectIdentifier([]int{2, 5, 4, 3}), Value: "bar.com"}},
1767		}, "CN=bar.com,O=Gopher Industries"},
1768		{pkix.Name{
1769			Locality: []string{"Gophertown"},
1770			ExtraNames: []pkix.AttributeTypeAndValue{
1771				{Type: asn1.ObjectIdentifier([]int{1, 2, 3, 4, 5}), Value: "golang.org"}},
1772		}, "1.2.3.4.5=#130a676f6c616e672e6f7267,L=Gophertown"},
1773	}
1774
1775	for i, test := range tests {
1776		if got := test.dn.String(); got != test.want {
1777			t.Errorf("#%d: String() = \n%s\n, want \n%s", i, got, test.want)
1778		}
1779	}
1780}
1781
1782func TestRDNSequenceString(t *testing.T) {
1783	// Test some extra cases that get lost in pkix.Name conversions such as
1784	// multi-valued attributes.
1785
1786	var (
1787		oidCountry            = []int{2, 5, 4, 6}
1788		oidOrganization       = []int{2, 5, 4, 10}
1789		oidOrganizationalUnit = []int{2, 5, 4, 11}
1790		oidCommonName         = []int{2, 5, 4, 3}
1791	)
1792
1793	tests := []struct {
1794		seq  pkix.RDNSequence
1795		want string
1796	}{
1797		{
1798			seq: pkix.RDNSequence{
1799				pkix.RelativeDistinguishedNameSET{
1800					pkix.AttributeTypeAndValue{Type: oidCountry, Value: "US"},
1801				},
1802				pkix.RelativeDistinguishedNameSET{
1803					pkix.AttributeTypeAndValue{Type: oidOrganization, Value: "Widget Inc."},
1804				},
1805				pkix.RelativeDistinguishedNameSET{
1806					pkix.AttributeTypeAndValue{Type: oidOrganizationalUnit, Value: "Sales"},
1807					pkix.AttributeTypeAndValue{Type: oidCommonName, Value: "J. Smith"},
1808				},
1809			},
1810			want: "OU=Sales+CN=J. Smith,O=Widget Inc.,C=US",
1811		},
1812	}
1813
1814	for i, test := range tests {
1815		if got := test.seq.String(); got != test.want {
1816			t.Errorf("#%d: String() = \n%s\n, want \n%s", i, got, test.want)
1817		}
1818	}
1819}
1820
1821const criticalNameConstraintWithUnknownTypePEM = `
1822-----BEGIN CERTIFICATE-----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1840-----END CERTIFICATE-----`
1841
1842func TestCriticalNameConstraintWithUnknownType(t *testing.T) {
1843	block, _ := pem.Decode([]byte(criticalNameConstraintWithUnknownTypePEM))
1844	cert, err := ParseCertificate(block.Bytes)
1845	if err != nil {
1846		t.Fatalf("unexpected parsing failure: %s", err)
1847	}
1848
1849	if l := len(cert.UnhandledCriticalExtensions); l != 1 {
1850		t.Fatalf("expected one unhandled critical extension, but found %d", l)
1851	}
1852}
1853
1854const badIPMaskPEM = `
1855-----BEGIN CERTIFICATE-----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1872-----END CERTIFICATE-----`
1873
1874func TestBadIPMask(t *testing.T) {
1875	block, _ := pem.Decode([]byte(badIPMaskPEM))
1876	_, err := ParseCertificate(block.Bytes)
1877	if err == nil {
1878		t.Fatalf("unexpected success")
1879	}
1880
1881	const expected = "contained invalid mask"
1882	if !strings.Contains(err.Error(), expected) {
1883		t.Fatalf("expected %q in error but got: %s", expected, err)
1884	}
1885}
1886
1887const additionalGeneralSubtreePEM = `
1888-----BEGIN CERTIFICATE-----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1926-----END CERTIFICATE-----`
1927
1928func TestAdditionFieldsInGeneralSubtree(t *testing.T) {
1929	// Very rarely, certificates can include additional fields in the
1930	// GeneralSubtree structure. This tests that such certificates can be
1931	// parsed.
1932	block, _ := pem.Decode([]byte(additionalGeneralSubtreePEM))
1933	if _, err := ParseCertificate(block.Bytes); err != nil {
1934		t.Fatalf("failed to parse certificate: %s", err)
1935	}
1936}
1937
1938func TestEmptySubject(t *testing.T) {
1939	template := Certificate{
1940		SerialNumber: big.NewInt(1),
1941		DNSNames:     []string{"example.com"},
1942	}
1943
1944	derBytes, err := CreateCertificate(rand.Reader, &template, &template, &testPrivateKey.PublicKey, testPrivateKey)
1945	if err != nil {
1946		t.Fatalf("failed to create certificate: %s", err)
1947	}
1948
1949	cert, err := ParseCertificate(derBytes)
1950	if err != nil {
1951		t.Fatalf("failed to parse certificate: %s", err)
1952	}
1953
1954	for _, ext := range cert.Extensions {
1955		if ext.Id.Equal(oidExtensionSubjectAltName) {
1956			if !ext.Critical {
1957				t.Fatal("SAN extension is not critical")
1958			}
1959			return
1960		}
1961	}
1962
1963	t.Fatal("SAN extension is missing")
1964}
1965
1966// multipleURLsInCRLDPPEM contains two URLs in a single CRL DistributionPoint
1967// structure. It is taken from https://crt.sh/?id=12721534.
1968const multipleURLsInCRLDPPEM = `
1969-----BEGIN CERTIFICATE-----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2002-----END CERTIFICATE-----
2003`
2004
2005func TestMultipleURLsInCRLDP(t *testing.T) {
2006	block, _ := pem.Decode([]byte(multipleURLsInCRLDPPEM))
2007	cert, err := ParseCertificate(block.Bytes)
2008	if err != nil {
2009		t.Fatalf("failed to parse certificate: %s", err)
2010	}
2011
2012	want := []string{
2013		"http://epscd.catcert.net/crl/ec-acc.crl",
2014		"http://epscd2.catcert.net/crl/ec-acc.crl",
2015	}
2016	if got := cert.CRLDistributionPoints; !reflect.DeepEqual(got, want) {
2017		t.Errorf("CRL distribution points = %#v, want #%v", got, want)
2018	}
2019}
2020