libgo/go/crypto/x509/verify_test.go

   1 // Copyright 2011 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
   5 package x509
   6
   7 import (
   8         "crypto/x509/pkix"
   9         "encoding/pem"
  10         "errors"
  11         "runtime"
  12         "strings"
  13         "testing"
  14         "time"
  15 )
  16
  17 type verifyTest struct {
  18         leaf          string
  19         intermediates []string
  20         roots         []string
  21         currentTime   int64
  22         dnsName       string
  23         systemSkip    bool
  24
  25         errorCallback  func(*testing.T, int, error) bool
  26         expectedChains [][]string
  27 }
  28
  29 var verifyTests = []verifyTest{
  30         {
  31                 leaf:          googleLeaf,
  32                 intermediates: []string{thawteIntermediate},
  33                 roots:         []string{verisignRoot},
  34                 currentTime:   1302726541,
  35                 dnsName:       "www.google.com",
  36
  37                 expectedChains: [][]string{
  38                         {"Google", "Thawte", "VeriSign"},
  39                 },
  40         },
  41         {
  42                 leaf:          googleLeaf,
  43                 intermediates: []string{thawteIntermediate},
  44                 roots:         []string{verisignRoot},
  45                 currentTime:   1302726541,
  46                 dnsName:       "WwW.GooGLE.coM",
  47
  48                 expectedChains: [][]string{
  49                         {"Google", "Thawte", "VeriSign"},
  50                 },
  51         },
  52         {
  53                 leaf:          googleLeaf,
  54                 intermediates: []string{thawteIntermediate},
  55                 roots:         []string{verisignRoot},
  56                 currentTime:   1302726541,
  57                 dnsName:       "www.example.com",
  58
  59                 errorCallback: expectHostnameError,
  60         },
  61         {
  62                 leaf:          googleLeaf,
  63                 intermediates: []string{thawteIntermediate},
  64                 roots:         []string{verisignRoot},
  65                 currentTime:   1,
  66                 dnsName:       "www.example.com",
  67
  68                 errorCallback: expectExpired,
  69         },
  70         {
  71                 leaf:        googleLeaf,
  72                 roots:       []string{verisignRoot},
  73                 currentTime: 1302726541,
  74                 dnsName:     "www.google.com",
  75
  76                 // Skip when using systemVerify, since Windows
  77                 // *will* find the missing intermediate cert.
  78                 systemSkip:    true,
  79                 errorCallback: expectAuthorityUnknown,
  80         },
  81         {
  82                 leaf:          googleLeaf,
  83                 intermediates: []string{verisignRoot, thawteIntermediate},
  84                 roots:         []string{verisignRoot},
  85                 currentTime:   1302726541,
  86                 dnsName:       "www.google.com",
  87
  88                 expectedChains: [][]string{
  89                         {"Google", "Thawte", "VeriSign"},
  90                 },
  91         },
  92         {
  93                 leaf:          dnssecExpLeaf,
  94                 intermediates: []string{startComIntermediate},
  95                 roots:         []string{startComRoot},
  96                 currentTime:   1302726541,
  97
  98                 expectedChains: [][]string{
  99                         {"dnssec-exp", "StartCom Class 1", "StartCom Certification Authority"},
 100                 },
 101         },
 102         {
 103                 leaf:          dnssecExpLeaf,
 104                 intermediates: []string{startComIntermediate, startComRoot},
 105                 roots:         []string{startComRoot},
 106                 currentTime:   1302726541,
 107
 108                 // Skip when using systemVerify, since Windows
 109                 // can only return a single chain to us (for now).
 110                 systemSkip: true,
 111                 expectedChains: [][]string{
 112                         {"dnssec-exp", "StartCom Class 1", "StartCom Certification Authority"},
 113                         {"dnssec-exp", "StartCom Class 1", "StartCom Certification Authority", "StartCom Certification Authority"},
 114                 },
 115         },
 116 }
 117
 118 func expectHostnameError(t *testing.T, i int, err error) (ok bool) {
 119         if _, ok := err.(HostnameError); !ok {
 120                 t.Errorf("#%d: error was not a HostnameError: %s", i, err)
 121                 return false
 122         }
 123         return true
 124 }
 125
 126 func expectExpired(t *testing.T, i int, err error) (ok bool) {
 127         if inval, ok := err.(CertificateInvalidError); !ok || inval.Reason != Expired {
 128                 t.Errorf("#%d: error was not Expired: %s", i, err)
 129                 return false
 130         }
 131         return true
 132 }
 133
 134 func expectAuthorityUnknown(t *testing.T, i int, err error) (ok bool) {
 135         if _, ok := err.(UnknownAuthorityError); !ok {
 136                 t.Errorf("#%d: error was not UnknownAuthorityError: %s", i, err)
 137                 return false
 138         }
 139         return true
 140 }
 141
 142 func certificateFromPEM(pemBytes string) (*Certificate, error) {
 143         block, _ := pem.Decode([]byte(pemBytes))
 144         if block == nil {
 145                 return nil, errors.New("failed to decode PEM")
 146         }
 147         return ParseCertificate(block.Bytes)
 148 }
 149
 150 func testVerify(t *testing.T, useSystemRoots bool) {
 151         for i, test := range verifyTests {
 152                 if useSystemRoots && test.systemSkip {
 153                         continue
 154                 }
 155
 156                 opts := VerifyOptions{
 157                         Intermediates: NewCertPool(),
 158                         DNSName:       test.dnsName,
 159                         CurrentTime:   time.Unix(test.currentTime, 0),
 160                 }
 161
 162                 if !useSystemRoots {
 163                         opts.Roots = NewCertPool()
 164                         for j, root := range test.roots {
 165                                 ok := opts.Roots.AppendCertsFromPEM([]byte(root))
 166                                 if !ok {
 167                                         t.Errorf("#%d: failed to parse root #%d", i, j)
 168                                         return
 169                                 }
 170                         }
 171                 }
 172
 173                 for j, intermediate := range test.intermediates {
 174                         ok := opts.Intermediates.AppendCertsFromPEM([]byte(intermediate))
 175                         if !ok {
 176                                 t.Errorf("#%d: failed to parse intermediate #%d", i, j)
 177                                 return
 178                         }
 179                 }
 180
 181                 leaf, err := certificateFromPEM(test.leaf)
 182                 if err != nil {
 183                         t.Errorf("#%d: failed to parse leaf: %s", i, err)
 184                         return
 185                 }
 186
 187                 chains, err := leaf.Verify(opts)
 188
 189                 if test.errorCallback == nil && err != nil {
 190                         t.Errorf("#%d: unexpected error: %s", i, err)
 191                 }
 192                 if test.errorCallback != nil {
 193                         if !test.errorCallback(t, i, err) {
 194                                 return
 195                         }
 196                 }
 197
 198                 if len(chains) != len(test.expectedChains) {
 199                         t.Errorf("#%d: wanted %d chains, got %d", i, len(test.expectedChains), len(chains))
 200                 }
 201
 202                 // We check that each returned chain matches a chain from
 203                 // expectedChains but an entry in expectedChains can't match
 204                 // two chains.
 205                 seenChains := make([]bool, len(chains))
 206         NextOutputChain:
 207                 for _, chain := range chains {
 208                 TryNextExpected:
 209                         for j, expectedChain := range test.expectedChains {
 210                                 if seenChains[j] {
 211                                         continue
 212                                 }
 213                                 if len(chain) != len(expectedChain) {
 214                                         continue
 215                                 }
 216                                 for k, cert := range chain {
 217                                         if strings.Index(nameToKey(&cert.Subject), expectedChain[k]) == -1 {
 218                                                 continue TryNextExpected
 219                                         }
 220                                 }
 221                                 // we matched
 222                                 seenChains[j] = true
 223                                 continue NextOutputChain
 224                         }
 225                         t.Errorf("#%d: No expected chain matched %s", i, chainToDebugString(chain))
 226                 }
 227         }
 228 }
 229
 230 func TestGoVerify(t *testing.T) {
 231         testVerify(t, false)
 232 }
 233
 234 func TestSystemVerify(t *testing.T) {
 235         if runtime.GOOS != "windows" {
 236                 t.Logf("skipping verify test using system APIs on %q", runtime.GOOS)
 237                 return
 238         }
 239
 240         testVerify(t, true)
 241 }
 242
 243 func chainToDebugString(chain []*Certificate) string {
 244         var chainStr string
 245         for _, cert := range chain {
 246                 if len(chainStr) > 0 {
 247                         chainStr += " -> "
 248                 }
 249                 chainStr += nameToKey(&cert.Subject)
 250         }
 251         return chainStr
 252 }
 253
 254 func nameToKey(name *pkix.Name) string {
 255         return strings.Join(name.Country, ",") + "/" + strings.Join(name.Organization, ",") + "/" + strings.Join(name.OrganizationalUnit, ",") + "/" + name.CommonName
 256 }
 257
 258 const verisignRoot = `-----BEGIN CERTIFICATE-----
 259 MIICPDCCAaUCEHC65B0Q2Sk0tjjKewPMur8wDQYJKoZIhvcNAQECBQAwXzELMAkG
 260 A1UEBhMCVVMxFzAVBgNVBAoTDlZlcmlTaWduLCBJbmMuMTcwNQYDVQQLEy5DbGFz
 261 cyAzIFB1YmxpYyBQcmltYXJ5IENlcnRpZmljYXRpb24gQXV0aG9yaXR5MB4XDTk2
 262 MDEyOTAwMDAwMFoXDTI4MDgwMTIzNTk1OVowXzELMAkGA1UEBhMCVVMxFzAVBgNV
 263 BAoTDlZlcmlTaWduLCBJbmMuMTcwNQYDVQQLEy5DbGFzcyAzIFB1YmxpYyBQcmlt
 264 YXJ5IENlcnRpZmljYXRpb24gQXV0aG9yaXR5MIGfMA0GCSqGSIb3DQEBAQUAA4GN
 265 ADCBiQKBgQDJXFme8huKARS0EN8EQNvjV69qRUCPhAwL0TPZ2RHP7gJYHyX3KqhE
 266 BarsAx94f56TuZoAqiN91qyFomNFx3InzPRMxnVx0jnvT0Lwdd8KkMaOIG+YD/is
 267 I19wKTakyYbnsZogy1Olhec9vn2a/iRFM9x2Fe0PonFkTGUugWhFpwIDAQABMA0G
 268 CSqGSIb3DQEBAgUAA4GBALtMEivPLCYATxQT3ab7/AoRhIzzKBxnki98tsX63/Do
 269 lbwdj2wsqFHMc9ikwFPwTtYmwHYBV4GSXiHx0bH/59AhWM1pF+NEHJwZRDmJXNyc
 270 AA9WjQKZ7aKQRUzkuxCkPfAyAw7xzvjoyVGM5mKf5p/AfbdynMk2OmufTqj/ZA1k
 271 -----END CERTIFICATE-----
 272 `
 273
 274 const thawteIntermediate = `-----BEGIN CERTIFICATE-----
 275 MIIDIzCCAoygAwIBAgIEMAAAAjANBgkqhkiG9w0BAQUFADBfMQswCQYDVQQGEwJV
 276 UzEXMBUGA1UEChMOVmVyaVNpZ24sIEluYy4xNzA1BgNVBAsTLkNsYXNzIDMgUHVi
 277 bGljIFByaW1hcnkgQ2VydGlmaWNhdGlvbiBBdXRob3JpdHkwHhcNMDQwNTEzMDAw
 278 MDAwWhcNMTQwNTEyMjM1OTU5WjBMMQswCQYDVQQGEwJaQTElMCMGA1UEChMcVGhh
 279 d3RlIENvbnN1bHRpbmcgKFB0eSkgTHRkLjEWMBQGA1UEAxMNVGhhd3RlIFNHQyBD
 280 QTCBnzANBgkqhkiG9w0BAQEFAAOBjQAwgYkCgYEA1NNn0I0Vf67NMf59HZGhPwtx
 281 PKzMyGT7Y/wySweUvW+Aui/hBJPAM/wJMyPpC3QrccQDxtLN4i/1CWPN/0ilAL/g
 282 5/OIty0y3pg25gqtAHvEZEo7hHUD8nCSfQ5i9SGraTaEMXWQ+L/HbIgbBpV8yeWo
 283 3nWhLHpo39XKHIdYYBkCAwEAAaOB/jCB+zASBgNVHRMBAf8ECDAGAQH/AgEAMAsG
 284 A1UdDwQEAwIBBjARBglghkgBhvhCAQEEBAMCAQYwKAYDVR0RBCEwH6QdMBsxGTAX
 285 BgNVBAMTEFByaXZhdGVMYWJlbDMtMTUwMQYDVR0fBCowKDAmoCSgIoYgaHR0cDov
 286 L2NybC52ZXJpc2lnbi5jb20vcGNhMy5jcmwwMgYIKwYBBQUHAQEEJjAkMCIGCCsG
 287 AQUFBzABhhZodHRwOi8vb2NzcC50aGF3dGUuY29tMDQGA1UdJQQtMCsGCCsGAQUF
 288 BwMBBggrBgEFBQcDAgYJYIZIAYb4QgQBBgpghkgBhvhFAQgBMA0GCSqGSIb3DQEB
 289 BQUAA4GBAFWsY+reod3SkF+fC852vhNRj5PZBSvIG3dLrWlQoe7e3P3bB+noOZTc
 290 q3J5Lwa/q4FwxKjt6lM07e8eU9kGx1Yr0Vz00YqOtCuxN5BICEIlxT6Ky3/rbwTR
 291 bcV0oveifHtgPHfNDs5IAn8BL7abN+AqKjbc1YXWrOU/VG+WHgWv
 292 -----END CERTIFICATE-----
 293 `
 294
 295 const googleLeaf = `-----BEGIN CERTIFICATE-----
 296 MIIDITCCAoqgAwIBAgIQL9+89q6RUm0PmqPfQDQ+mjANBgkqhkiG9w0BAQUFADBM
 297 MQswCQYDVQQGEwJaQTElMCMGA1UEChMcVGhhd3RlIENvbnN1bHRpbmcgKFB0eSkg
 298 THRkLjEWMBQGA1UEAxMNVGhhd3RlIFNHQyBDQTAeFw0wOTEyMTgwMDAwMDBaFw0x
 299 MTEyMTgyMzU5NTlaMGgxCzAJBgNVBAYTAlVTMRMwEQYDVQQIEwpDYWxpZm9ybmlh
 300 MRYwFAYDVQQHFA1Nb3VudGFpbiBWaWV3MRMwEQYDVQQKFApHb29nbGUgSW5jMRcw
 301 FQYDVQQDFA53d3cuZ29vZ2xlLmNvbTCBnzANBgkqhkiG9w0BAQEFAAOBjQAwgYkC
 302 gYEA6PmGD5D6htffvXImttdEAoN4c9kCKO+IRTn7EOh8rqk41XXGOOsKFQebg+jN
 303 gtXj9xVoRaELGYW84u+E593y17iYwqG7tcFR39SDAqc9BkJb4SLD3muFXxzW2k6L
 304 05vuuWciKh0R73mkszeK9P4Y/bz5RiNQl/Os/CRGK1w7t0UCAwEAAaOB5zCB5DAM
 305 BgNVHRMBAf8EAjAAMDYGA1UdHwQvMC0wK6ApoCeGJWh0dHA6Ly9jcmwudGhhd3Rl
 306 LmNvbS9UaGF3dGVTR0NDQS5jcmwwKAYDVR0lBCEwHwYIKwYBBQUHAwEGCCsGAQUF
 307 BwMCBglghkgBhvhCBAEwcgYIKwYBBQUHAQEEZjBkMCIGCCsGAQUFBzABhhZodHRw
 308 Oi8vb2NzcC50aGF3dGUuY29tMD4GCCsGAQUFBzAChjJodHRwOi8vd3d3LnRoYXd0
 309 ZS5jb20vcmVwb3NpdG9yeS9UaGF3dGVfU0dDX0NBLmNydDANBgkqhkiG9w0BAQUF
 310 AAOBgQCfQ89bxFApsb/isJr/aiEdLRLDLE5a+RLizrmCUi3nHX4adpaQedEkUjh5
 311 u2ONgJd8IyAPkU0Wueru9G2Jysa9zCRo1kNbzipYvzwY4OA8Ys+WAi0oR1A04Se6
 312 z5nRUP8pJcA2NhUzUnC+MY+f6H/nEQyNv4SgQhqAibAxWEEHXw==
 313 -----END CERTIFICATE-----`
 314
 315 const dnssecExpLeaf = `-----BEGIN CERTIFICATE-----
 316 MIIGzTCCBbWgAwIBAgIDAdD6MA0GCSqGSIb3DQEBBQUAMIGMMQswCQYDVQQGEwJJ
 317 TDEWMBQGA1UEChMNU3RhcnRDb20gTHRkLjErMCkGA1UECxMiU2VjdXJlIERpZ2l0
 318 YWwgQ2VydGlmaWNhdGUgU2lnbmluZzE4MDYGA1UEAxMvU3RhcnRDb20gQ2xhc3Mg
 319 MSBQcmltYXJ5IEludGVybWVkaWF0ZSBTZXJ2ZXIgQ0EwHhcNMTAwNzA0MTQ1MjQ1
 320 WhcNMTEwNzA1MTA1NzA0WjCBwTEgMB4GA1UEDRMXMjIxMTM3LWxpOWE5dHhJRzZM
 321 NnNyVFMxCzAJBgNVBAYTAlVTMR4wHAYDVQQKExVQZXJzb25hIE5vdCBWYWxpZGF0
 322 ZWQxKTAnBgNVBAsTIFN0YXJ0Q29tIEZyZWUgQ2VydGlmaWNhdGUgTWVtYmVyMRsw
 323 GQYDVQQDExJ3d3cuZG5zc2VjLWV4cC5vcmcxKDAmBgkqhkiG9w0BCQEWGWhvc3Rt
 324 YXN0ZXJAZG5zc2VjLWV4cC5vcmcwggEiMA0GCSqGSIb3DQEBAQUAA4IBDwAwggEK
 325 AoIBAQDEdF/22vaxrPbqpgVYMWi+alfpzBctpbfLBdPGuqOazJdCT0NbWcK8/+B4
 326 X6OlSOURNIlwLzhkmwVsWdVv6dVSaN7d4yI/fJkvgfDB9+au+iBJb6Pcz8ULBfe6
 327 D8HVvqKdORp6INzHz71z0sghxrQ0EAEkoWAZLh+kcn2ZHdcmZaBNUfjmGbyU6PRt
 328 RjdqoP+owIaC1aktBN7zl4uO7cRjlYFdusINrh2kPP02KAx2W84xjxX1uyj6oS6e
 329 7eBfvcwe8czW/N1rbE0CoR7h9+HnIrjnVG9RhBiZEiw3mUmF++Up26+4KTdRKbu3
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 333 LQYDVR0RBCYwJIISd3d3LmRuc3NlYy1leHAub3Jngg5kbnNzZWMtZXhwLm9yZzCC
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 340 dCBodHRwOi8vd3d3LnN0YXJ0c3NsLmNvbS9wb2xpY3kucGRmMGEGA1UdHwRaMFgw
 341 KqAooCaGJGh0dHA6Ly93d3cuc3RhcnRzc2wuY29tL2NydDEtY3JsLmNybDAqoCig
 342 JoYkaHR0cDovL2NybC5zdGFydHNzbC5jb20vY3J0MS1jcmwuY3JsMIGOBggrBgEF
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 353 -----END CERTIFICATE-----`
 354
 355 const startComIntermediate = `-----BEGIN CERTIFICATE-----
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 390 -----END CERTIFICATE-----`
 391
 392 const startComRoot = `-----BEGIN CERTIFICATE-----
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 435 -----END CERTIFICATE-----`