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         "strings"
  12         "testing"
  13         "time"
  14 )
  15
  16 type verifyTest struct {
  17         leaf          string
  18         intermediates []string
  19         roots         []string
  20         currentTime   int64
  21         dnsName       string
  22         nilRoots      bool
  23
  24         errorCallback  func(*testing.T, int, error) bool
  25         expectedChains [][]string
  26 }
  27
  28 var verifyTests = []verifyTest{
  29         {
  30                 leaf:          googleLeaf,
  31                 intermediates: []string{thawteIntermediate},
  32                 roots:         []string{verisignRoot},
  33                 currentTime:   1302726541,
  34                 dnsName:       "www.google.com",
  35
  36                 expectedChains: [][]string{
  37                         {"Google", "Thawte", "VeriSign"},
  38                 },
  39         },
  40         {
  41                 leaf:          googleLeaf,
  42                 intermediates: []string{thawteIntermediate},
  43                 roots:         []string{verisignRoot},
  44                 currentTime:   1302726541,
  45                 dnsName:       "WwW.GooGLE.coM",
  46
  47                 expectedChains: [][]string{
  48                         {"Google", "Thawte", "VeriSign"},
  49                 },
  50         },
  51         {
  52                 leaf:          googleLeaf,
  53                 intermediates: []string{thawteIntermediate},
  54                 roots:         []string{verisignRoot},
  55                 currentTime:   1302726541,
  56                 dnsName:       "www.example.com",
  57
  58                 errorCallback: expectHostnameError,
  59         },
  60         {
  61                 leaf:          googleLeaf,
  62                 intermediates: []string{thawteIntermediate},
  63                 nilRoots:      true, // verifies that we don't crash
  64                 currentTime:   1302726541,
  65                 dnsName:       "www.google.com",
  66                 errorCallback: expectAuthorityUnknown,
  67         },
  68         {
  69                 leaf:          googleLeaf,
  70                 intermediates: []string{thawteIntermediate},
  71                 roots:         []string{verisignRoot},
  72                 currentTime:   1,
  73                 dnsName:       "www.example.com",
  74
  75                 errorCallback: expectExpired,
  76         },
  77         {
  78                 leaf:        googleLeaf,
  79                 roots:       []string{verisignRoot},
  80                 currentTime: 1302726541,
  81                 dnsName:     "www.google.com",
  82
  83                 errorCallback: expectAuthorityUnknown,
  84         },
  85         {
  86                 leaf:          googleLeaf,
  87                 intermediates: []string{verisignRoot, thawteIntermediate},
  88                 roots:         []string{verisignRoot},
  89                 currentTime:   1302726541,
  90                 dnsName:       "www.google.com",
  91
  92                 expectedChains: [][]string{
  93                         {"Google", "Thawte", "VeriSign"},
  94                 },
  95         },
  96         {
  97                 leaf:          dnssecExpLeaf,
  98                 intermediates: []string{startComIntermediate},
  99                 roots:         []string{startComRoot},
 100                 currentTime:   1302726541,
 101
 102                 expectedChains: [][]string{
 103                         {"dnssec-exp", "StartCom Class 1", "StartCom Certification Authority"},
 104                 },
 105         },
 106         {
 107                 leaf:          dnssecExpLeaf,
 108                 intermediates: []string{startComIntermediate, startComRoot},
 109                 roots:         []string{startComRoot},
 110                 currentTime:   1302726541,
 111
 112                 expectedChains: [][]string{
 113                         {"dnssec-exp", "StartCom Class 1", "StartCom Certification Authority"},
 114                         {"dnssec-exp", "StartCom Class 1", "StartCom Certification Authority", "StartCom Certification Authority"},
 115                 },
 116         },
 117 }
 118
 119 func expectHostnameError(t *testing.T, i int, err error) (ok bool) {
 120         if _, ok := err.(HostnameError); !ok {
 121                 t.Errorf("#%d: error was not a HostnameError: %s", i, err)
 122                 return false
 123         }
 124         return true
 125 }
 126
 127 func expectExpired(t *testing.T, i int, err error) (ok bool) {
 128         if inval, ok := err.(CertificateInvalidError); !ok || inval.Reason != Expired {
 129                 t.Errorf("#%d: error was not Expired: %s", i, err)
 130                 return false
 131         }
 132         return true
 133 }
 134
 135 func expectAuthorityUnknown(t *testing.T, i int, err error) (ok bool) {
 136         if _, ok := err.(UnknownAuthorityError); !ok {
 137                 t.Errorf("#%d: error was not UnknownAuthorityError: %s", i, err)
 138                 return false
 139         }
 140         return true
 141 }
 142
 143 func certificateFromPEM(pemBytes string) (*Certificate, error) {
 144         block, _ := pem.Decode([]byte(pemBytes))
 145         if block == nil {
 146                 return nil, errors.New("failed to decode PEM")
 147         }
 148         return ParseCertificate(block.Bytes)
 149 }
 150
 151 func TestVerify(t *testing.T) {
 152         for i, test := range verifyTests {
 153                 opts := VerifyOptions{
 154                         Roots:         NewCertPool(),
 155                         Intermediates: NewCertPool(),
 156                         DNSName:       test.dnsName,
 157                         CurrentTime:   time.Unix(test.currentTime, 0),
 158                 }
 159                 if test.nilRoots {
 160                         opts.Roots = nil
 161                 }
 162
 163                 for j, root := range test.roots {
 164                         ok := opts.Roots.AppendCertsFromPEM([]byte(root))
 165                         if !ok {
 166                                 t.Errorf("#%d: failed to parse root #%d", i, j)
 167                                 return
 168                         }
 169                 }
 170
 171                 for j, intermediate := range test.intermediates {
 172                         ok := opts.Intermediates.AppendCertsFromPEM([]byte(intermediate))
 173                         if !ok {
 174                                 t.Errorf("#%d: failed to parse intermediate #%d", i, j)
 175                                 return
 176                         }
 177                 }
 178
 179                 leaf, err := certificateFromPEM(test.leaf)
 180                 if err != nil {
 181                         t.Errorf("#%d: failed to parse leaf: %s", i, err)
 182                         return
 183                 }
 184
 185                 chains, err := leaf.Verify(opts)
 186
 187                 if test.errorCallback == nil && err != nil {
 188                         t.Errorf("#%d: unexpected error: %s", i, err)
 189                 }
 190                 if test.errorCallback != nil {
 191                         if !test.errorCallback(t, i, err) {
 192                                 return
 193                         }
 194                 }
 195
 196                 if len(chains) != len(test.expectedChains) {
 197                         t.Errorf("#%d: wanted %d chains, got %d", i, len(test.expectedChains), len(chains))
 198                 }
 199
 200                 // We check that each returned chain matches a chain from
 201                 // expectedChains but an entry in expectedChains can't match
 202                 // two chains.
 203                 seenChains := make([]bool, len(chains))
 204         NextOutputChain:
 205                 for _, chain := range chains {
 206                 TryNextExpected:
 207                         for j, expectedChain := range test.expectedChains {
 208                                 if seenChains[j] {
 209                                         continue
 210                                 }
 211                                 if len(chain) != len(expectedChain) {
 212                                         continue
 213                                 }
 214                                 for k, cert := range chain {
 215                                         if strings.Index(nameToKey(&cert.Subject), expectedChain[k]) == -1 {
 216                                                 continue TryNextExpected
 217                                         }
 218                                 }
 219                                 // we matched
 220                                 seenChains[j] = true
 221                                 continue NextOutputChain
 222                         }
 223                         t.Errorf("#%d: No expected chain matched %s", i, chainToDebugString(chain))
 224                 }
 225         }
 226 }
 227
 228 func chainToDebugString(chain []*Certificate) string {
 229         var chainStr string
 230         for _, cert := range chain {
 231                 if len(chainStr) > 0 {
 232                         chainStr += " -> "
 233                 }
 234                 chainStr += nameToKey(&cert.Subject)
 235         }
 236         return chainStr
 237 }
 238
 239 func nameToKey(name *pkix.Name) string {
 240         return strings.Join(name.Country, ",") + "/" + strings.Join(name.Organization, ",") + "/" + strings.Join(name.OrganizationalUnit, ",") + "/" + name.CommonName
 241 }
 242
 243 const verisignRoot = `-----BEGIN CERTIFICATE-----
 244 MIICPDCCAaUCEHC65B0Q2Sk0tjjKewPMur8wDQYJKoZIhvcNAQECBQAwXzELMAkG
 245 A1UEBhMCVVMxFzAVBgNVBAoTDlZlcmlTaWduLCBJbmMuMTcwNQYDVQQLEy5DbGFz
 246 cyAzIFB1YmxpYyBQcmltYXJ5IENlcnRpZmljYXRpb24gQXV0aG9yaXR5MB4XDTk2
 247 MDEyOTAwMDAwMFoXDTI4MDgwMTIzNTk1OVowXzELMAkGA1UEBhMCVVMxFzAVBgNV
 248 BAoTDlZlcmlTaWduLCBJbmMuMTcwNQYDVQQLEy5DbGFzcyAzIFB1YmxpYyBQcmlt
 249 YXJ5IENlcnRpZmljYXRpb24gQXV0aG9yaXR5MIGfMA0GCSqGSIb3DQEBAQUAA4GN
 250 ADCBiQKBgQDJXFme8huKARS0EN8EQNvjV69qRUCPhAwL0TPZ2RHP7gJYHyX3KqhE
 251 BarsAx94f56TuZoAqiN91qyFomNFx3InzPRMxnVx0jnvT0Lwdd8KkMaOIG+YD/is
 252 I19wKTakyYbnsZogy1Olhec9vn2a/iRFM9x2Fe0PonFkTGUugWhFpwIDAQABMA0G
 253 CSqGSIb3DQEBAgUAA4GBALtMEivPLCYATxQT3ab7/AoRhIzzKBxnki98tsX63/Do
 254 lbwdj2wsqFHMc9ikwFPwTtYmwHYBV4GSXiHx0bH/59AhWM1pF+NEHJwZRDmJXNyc
 255 AA9WjQKZ7aKQRUzkuxCkPfAyAw7xzvjoyVGM5mKf5p/AfbdynMk2OmufTqj/ZA1k
 256 -----END CERTIFICATE-----
 257 `
 258
 259 const thawteIntermediate = `-----BEGIN CERTIFICATE-----
 260 MIIDIzCCAoygAwIBAgIEMAAAAjANBgkqhkiG9w0BAQUFADBfMQswCQYDVQQGEwJV
 261 UzEXMBUGA1UEChMOVmVyaVNpZ24sIEluYy4xNzA1BgNVBAsTLkNsYXNzIDMgUHVi
 262 bGljIFByaW1hcnkgQ2VydGlmaWNhdGlvbiBBdXRob3JpdHkwHhcNMDQwNTEzMDAw
 263 MDAwWhcNMTQwNTEyMjM1OTU5WjBMMQswCQYDVQQGEwJaQTElMCMGA1UEChMcVGhh
 264 d3RlIENvbnN1bHRpbmcgKFB0eSkgTHRkLjEWMBQGA1UEAxMNVGhhd3RlIFNHQyBD
 265 QTCBnzANBgkqhkiG9w0BAQEFAAOBjQAwgYkCgYEA1NNn0I0Vf67NMf59HZGhPwtx
 266 PKzMyGT7Y/wySweUvW+Aui/hBJPAM/wJMyPpC3QrccQDxtLN4i/1CWPN/0ilAL/g
 267 5/OIty0y3pg25gqtAHvEZEo7hHUD8nCSfQ5i9SGraTaEMXWQ+L/HbIgbBpV8yeWo
 268 3nWhLHpo39XKHIdYYBkCAwEAAaOB/jCB+zASBgNVHRMBAf8ECDAGAQH/AgEAMAsG
 269 A1UdDwQEAwIBBjARBglghkgBhvhCAQEEBAMCAQYwKAYDVR0RBCEwH6QdMBsxGTAX
 270 BgNVBAMTEFByaXZhdGVMYWJlbDMtMTUwMQYDVR0fBCowKDAmoCSgIoYgaHR0cDov
 271 L2NybC52ZXJpc2lnbi5jb20vcGNhMy5jcmwwMgYIKwYBBQUHAQEEJjAkMCIGCCsG
 272 AQUFBzABhhZodHRwOi8vb2NzcC50aGF3dGUuY29tMDQGA1UdJQQtMCsGCCsGAQUF
 273 BwMBBggrBgEFBQcDAgYJYIZIAYb4QgQBBgpghkgBhvhFAQgBMA0GCSqGSIb3DQEB
 274 BQUAA4GBAFWsY+reod3SkF+fC852vhNRj5PZBSvIG3dLrWlQoe7e3P3bB+noOZTc
 275 q3J5Lwa/q4FwxKjt6lM07e8eU9kGx1Yr0Vz00YqOtCuxN5BICEIlxT6Ky3/rbwTR
 276 bcV0oveifHtgPHfNDs5IAn8BL7abN+AqKjbc1YXWrOU/VG+WHgWv
 277 -----END CERTIFICATE-----
 278 `
 279
 280 const googleLeaf = `-----BEGIN CERTIFICATE-----
 281 MIIDITCCAoqgAwIBAgIQL9+89q6RUm0PmqPfQDQ+mjANBgkqhkiG9w0BAQUFADBM
 282 MQswCQYDVQQGEwJaQTElMCMGA1UEChMcVGhhd3RlIENvbnN1bHRpbmcgKFB0eSkg
 283 THRkLjEWMBQGA1UEAxMNVGhhd3RlIFNHQyBDQTAeFw0wOTEyMTgwMDAwMDBaFw0x
 284 MTEyMTgyMzU5NTlaMGgxCzAJBgNVBAYTAlVTMRMwEQYDVQQIEwpDYWxpZm9ybmlh
 285 MRYwFAYDVQQHFA1Nb3VudGFpbiBWaWV3MRMwEQYDVQQKFApHb29nbGUgSW5jMRcw
 286 FQYDVQQDFA53d3cuZ29vZ2xlLmNvbTCBnzANBgkqhkiG9w0BAQEFAAOBjQAwgYkC
 287 gYEA6PmGD5D6htffvXImttdEAoN4c9kCKO+IRTn7EOh8rqk41XXGOOsKFQebg+jN
 288 gtXj9xVoRaELGYW84u+E593y17iYwqG7tcFR39SDAqc9BkJb4SLD3muFXxzW2k6L
 289 05vuuWciKh0R73mkszeK9P4Y/bz5RiNQl/Os/CRGK1w7t0UCAwEAAaOB5zCB5DAM
 290 BgNVHRMBAf8EAjAAMDYGA1UdHwQvMC0wK6ApoCeGJWh0dHA6Ly9jcmwudGhhd3Rl
 291 LmNvbS9UaGF3dGVTR0NDQS5jcmwwKAYDVR0lBCEwHwYIKwYBBQUHAwEGCCsGAQUF
 292 BwMCBglghkgBhvhCBAEwcgYIKwYBBQUHAQEEZjBkMCIGCCsGAQUFBzABhhZodHRw
 293 Oi8vb2NzcC50aGF3dGUuY29tMD4GCCsGAQUFBzAChjJodHRwOi8vd3d3LnRoYXd0
 294 ZS5jb20vcmVwb3NpdG9yeS9UaGF3dGVfU0dDX0NBLmNydDANBgkqhkiG9w0BAQUF
 295 AAOBgQCfQ89bxFApsb/isJr/aiEdLRLDLE5a+RLizrmCUi3nHX4adpaQedEkUjh5
 296 u2ONgJd8IyAPkU0Wueru9G2Jysa9zCRo1kNbzipYvzwY4OA8Ys+WAi0oR1A04Se6
 297 z5nRUP8pJcA2NhUzUnC+MY+f6H/nEQyNv4SgQhqAibAxWEEHXw==
 298 -----END CERTIFICATE-----`
 299
 300 const dnssecExpLeaf = `-----BEGIN CERTIFICATE-----
 301 MIIGzTCCBbWgAwIBAgIDAdD6MA0GCSqGSIb3DQEBBQUAMIGMMQswCQYDVQQGEwJJ
 302 TDEWMBQGA1UEChMNU3RhcnRDb20gTHRkLjErMCkGA1UECxMiU2VjdXJlIERpZ2l0
 303 YWwgQ2VydGlmaWNhdGUgU2lnbmluZzE4MDYGA1UEAxMvU3RhcnRDb20gQ2xhc3Mg
 304 MSBQcmltYXJ5IEludGVybWVkaWF0ZSBTZXJ2ZXIgQ0EwHhcNMTAwNzA0MTQ1MjQ1
 305 WhcNMTEwNzA1MTA1NzA0WjCBwTEgMB4GA1UEDRMXMjIxMTM3LWxpOWE5dHhJRzZM
 306 NnNyVFMxCzAJBgNVBAYTAlVTMR4wHAYDVQQKExVQZXJzb25hIE5vdCBWYWxpZGF0
 307 ZWQxKTAnBgNVBAsTIFN0YXJ0Q29tIEZyZWUgQ2VydGlmaWNhdGUgTWVtYmVyMRsw
 308 GQYDVQQDExJ3d3cuZG5zc2VjLWV4cC5vcmcxKDAmBgkqhkiG9w0BCQEWGWhvc3Rt
 309 YXN0ZXJAZG5zc2VjLWV4cC5vcmcwggEiMA0GCSqGSIb3DQEBAQUAA4IBDwAwggEK
 310 AoIBAQDEdF/22vaxrPbqpgVYMWi+alfpzBctpbfLBdPGuqOazJdCT0NbWcK8/+B4
 311 X6OlSOURNIlwLzhkmwVsWdVv6dVSaN7d4yI/fJkvgfDB9+au+iBJb6Pcz8ULBfe6
 312 D8HVvqKdORp6INzHz71z0sghxrQ0EAEkoWAZLh+kcn2ZHdcmZaBNUfjmGbyU6PRt
 313 RjdqoP+owIaC1aktBN7zl4uO7cRjlYFdusINrh2kPP02KAx2W84xjxX1uyj6oS6e
 314 7eBfvcwe8czW/N1rbE0CoR7h9+HnIrjnVG9RhBiZEiw3mUmF++Up26+4KTdRKbu3
 315 +BL4yMpfd66z0+zzqu+HkvyLpFn5AgMBAAGjggL/MIIC+zAJBgNVHRMEAjAAMAsG
 316 A1UdDwQEAwIDqDATBgNVHSUEDDAKBggrBgEFBQcDATAdBgNVHQ4EFgQUy04I5guM
 317 drzfh2JQaXhgV86+4jUwHwYDVR0jBBgwFoAU60I00Jiwq5/0G2sI98xkLu8OLEUw
 318 LQYDVR0RBCYwJIISd3d3LmRuc3NlYy1leHAub3Jngg5kbnNzZWMtZXhwLm9yZzCC
 319 AUIGA1UdIASCATkwggE1MIIBMQYLKwYBBAGBtTcBAgIwggEgMC4GCCsGAQUFBwIB
 320 FiJodHRwOi8vd3d3LnN0YXJ0c3NsLmNvbS9wb2xpY3kucGRmMDQGCCsGAQUFBwIB
 321 FihodHRwOi8vd3d3LnN0YXJ0c3NsLmNvbS9pbnRlcm1lZGlhdGUucGRmMIG3Bggr
 322 BgEFBQcCAjCBqjAUFg1TdGFydENvbSBMdGQuMAMCAQEagZFMaW1pdGVkIExpYWJp
 323 bGl0eSwgc2VlIHNlY3Rpb24gKkxlZ2FsIExpbWl0YXRpb25zKiBvZiB0aGUgU3Rh
 324 cnRDb20gQ2VydGlmaWNhdGlvbiBBdXRob3JpdHkgUG9saWN5IGF2YWlsYWJsZSBh
 325 dCBodHRwOi8vd3d3LnN0YXJ0c3NsLmNvbS9wb2xpY3kucGRmMGEGA1UdHwRaMFgw
 326 KqAooCaGJGh0dHA6Ly93d3cuc3RhcnRzc2wuY29tL2NydDEtY3JsLmNybDAqoCig
 327 JoYkaHR0cDovL2NybC5zdGFydHNzbC5jb20vY3J0MS1jcmwuY3JsMIGOBggrBgEF
 328 BQcBAQSBgTB/MDkGCCsGAQUFBzABhi1odHRwOi8vb2NzcC5zdGFydHNzbC5jb20v
 329 c3ViL2NsYXNzMS9zZXJ2ZXIvY2EwQgYIKwYBBQUHMAKGNmh0dHA6Ly93d3cuc3Rh
 330 cnRzc2wuY29tL2NlcnRzL3N1Yi5jbGFzczEuc2VydmVyLmNhLmNydDAjBgNVHRIE
 331 HDAahhhodHRwOi8vd3d3LnN0YXJ0c3NsLmNvbS8wDQYJKoZIhvcNAQEFBQADggEB
 332 ACXj6SB59KRJPenn6gUdGEqcta97U769SATyiQ87i9er64qLwvIGLMa3o2Rcgl2Y
 333 kghUeyLdN/EXyFBYA8L8uvZREPoc7EZukpT/ZDLXy9i2S0jkOxvF2fD/XLbcjGjM
 334 iEYG1/6ASw0ri9C0k4oDDoJLCoeH9++yqF7SFCCMcDkJqiAGXNb4euDpa8vCCtEQ
 335 CSS+ObZbfkreRt3cNCf5LfCXe9OsTnCfc8Cuq81c0oLaG+SmaLUQNBuToq8e9/Zm
 336 +b+/a3RVjxmkV5OCcGVBxsXNDn54Q6wsdw0TBMcjwoEndzpLS7yWgFbbkq5ZiGpw
 337 Qibb2+CfKuQ+WFV1GkVQmVA=
 338 -----END CERTIFICATE-----`
 339
 340 const startComIntermediate = `-----BEGIN CERTIFICATE-----
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 376
 377 const startComRoot = `-----BEGIN CERTIFICATE-----
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