Verify that known roots are indeed signing themselves.

This filters out certificates with signing algorithms that we can't
handle.

Also, make unit tests better.

9 files changed, 281 insertions, 214 deletions

diff --git a/test/testdata/known_roots/DigiCert High Assurance EV Root CA.pem b/test/testdata/known_roots/DigiCert High Assurance EV Root CA.pem
new file mode 100644
index 0000000..56a04d9
--- /dev/null
+++ b/test/testdata/known_roots/DigiCert High Assurance EV Root CA.pem
@@ -0,0 +1,83 @@
+Certificate:
+    Data:
+        Version: 3 (0x2)
+        Serial Number:
+            02:ac:5c:26:6a:0b:40:9b:8f:0b:79:f2:ae:46:25:77
+    Signature Algorithm: sha1WithRSAEncryption
+        Issuer: C=US, O=DigiCert Inc, OU=www.digicert.com, CN=DigiCert High Assurance EV Root CA
+        Validity
+            Not Before: Nov 10 00:00:00 2006 GMT
+            Not After : Nov 10 00:00:00 2031 GMT
+        Subject: C=US, O=DigiCert Inc, OU=www.digicert.com, CN=DigiCert High Assurance EV Root CA
+        Subject Public Key Info:
+            Public Key Algorithm: rsaEncryption
+                Public-Key: (2048 bit)
+                Modulus:
+                    00:c6:cc:e5:73:e6:fb:d4:bb:e5:2d:2d:32:a6:df:
+                    e5:81:3f:c9:cd:25:49:b6:71:2a:c3:d5:94:34:67:
+                    a2:0a:1c:b0:5f:69:a6:40:b1:c4:b7:b2:8f:d0:98:
+                    a4:a9:41:59:3a:d3:dc:94:d6:3c:db:74:38:a4:4a:
+                    cc:4d:25:82:f7:4a:a5:53:12:38:ee:f3:49:6d:71:
+                    91:7e:63:b6:ab:a6:5f:c3:a4:84:f8:4f:62:51:be:
+                    f8:c5:ec:db:38:92:e3:06:e5:08:91:0c:c4:28:41:
+                    55:fb:cb:5a:89:15:7e:71:e8:35:bf:4d:72:09:3d:
+                    be:3a:38:50:5b:77:31:1b:8d:b3:c7:24:45:9a:a7:
+                    ac:6d:00:14:5a:04:b7:ba:13:eb:51:0a:98:41:41:
+                    22:4e:65:61:87:81:41:50:a6:79:5c:89:de:19:4a:
+                    57:d5:2e:e6:5d:1c:53:2c:7e:98:cd:1a:06:16:a4:
+                    68:73:d0:34:04:13:5c:a1:71:d3:5a:7c:55:db:5e:
+                    64:e1:37:87:30:56:04:e5:11:b4:29:80:12:f1:79:
+                    39:88:a2:02:11:7c:27:66:b7:88:b7:78:f2:ca:0a:
+                    a8:38:ab:0a:64:c2:bf:66:5d:95:84:c1:a1:25:1e:
+                    87:5d:1a:50:0b:20:12:cc:41:bb:6e:0b:51:38:b8:
+                    4b:cb
+                Exponent: 65537 (0x10001)
+        X509v3 extensions:
+            X509v3 Key Usage: critical
+                Digital Signature, Certificate Sign, CRL Sign
+            X509v3 Basic Constraints: critical
+                CA:TRUE
+            X509v3 Subject Key Identifier: 
+                B1:3E:C3:69:03:F8:BF:47:01:D4:98:26:1A:08:02:EF:63:64:2B:C3
+            X509v3 Authority Key Identifier: 
+                keyid:B1:3E:C3:69:03:F8:BF:47:01:D4:98:26:1A:08:02:EF:63:64:2B:C3
+
+    Signature Algorithm: sha1WithRSAEncryption
+         1c:1a:06:97:dc:d7:9c:9f:3c:88:66:06:08:57:21:db:21:47:
+         f8:2a:67:aa:bf:18:32:76:40:10:57:c1:8a:f3:7a:d9:11:65:
+         8e:35:fa:9e:fc:45:b5:9e:d9:4c:31:4b:b8:91:e8:43:2c:8e:
+         b3:78:ce:db:e3:53:79:71:d6:e5:21:94:01:da:55:87:9a:24:
+         64:f6:8a:66:cc:de:9c:37:cd:a8:34:b1:69:9b:23:c8:9e:78:
+         22:2b:70:43:e3:55:47:31:61:19:ef:58:c5:85:2f:4e:30:f6:
+         a0:31:16:23:c8:e7:e2:65:16:33:cb:bf:1a:1b:a0:3d:f8:ca:
+         5e:8b:31:8b:60:08:89:2d:0c:06:5c:52:b7:c4:f9:0a:98:d1:
+         15:5f:9f:12:be:7c:36:63:38:bd:44:a4:7f:e4:26:2b:0a:c4:
+         97:69:0d:e9:8c:e2:c0:10:57:b8:c8:76:12:91:55:f2:48:69:
+         d8:bc:2a:02:5b:0f:44:d4:20:31:db:f4:ba:70:26:5d:90:60:
+         9e:bc:4b:17:09:2f:b4:cb:1e:43:68:c9:07:27:c1:d2:5c:f7:
+         ea:21:b9:68:12:9c:3c:9c:bf:9e:fc:80:5c:9b:63:cd:ec:47:
+         aa:25:27:67:a0:37:f3:00:82:7d:54:d7:a9:f8:e9:2e:13:a3:
+         77:e8:1f:4a
+-----BEGIN CERTIFICATE-----
+MIIDxTCCAq2gAwIBAgIQAqxcJmoLQJuPC3nyrkYldzANBgkqhkiG9w0BAQUFADBs
+MQswCQYDVQQGEwJVUzEVMBMGA1UEChMMRGlnaUNlcnQgSW5jMRkwFwYDVQQLExB3
+d3cuZGlnaWNlcnQuY29tMSswKQYDVQQDEyJEaWdpQ2VydCBIaWdoIEFzc3VyYW5j
+ZSBFViBSb290IENBMB4XDTA2MTExMDAwMDAwMFoXDTMxMTExMDAwMDAwMFowbDEL
+MAkGA1UEBhMCVVMxFTATBgNVBAoTDERpZ2lDZXJ0IEluYzEZMBcGA1UECxMQd3d3
+LmRpZ2ljZXJ0LmNvbTErMCkGA1UEAxMiRGlnaUNlcnQgSGlnaCBBc3N1cmFuY2Ug
+RVYgUm9vdCBDQTCCASIwDQYJKoZIhvcNAQEBBQADggEPADCCAQoCggEBAMbM5XPm
++9S75S0tMqbf5YE/yc0lSbZxKsPVlDRnogocsF9ppkCxxLeyj9CYpKlBWTrT3JTW
+PNt0OKRKzE0lgvdKpVMSOO7zSW1xkX5jtqumX8OkhPhPYlG++MXs2ziS4wblCJEM
+xChBVfvLWokVfnHoNb9Ncgk9vjo4UFt3MRuNs8ckRZqnrG0AFFoEt7oT61EKmEFB
+Ik5lYYeBQVCmeVyJ3hlKV9Uu5l0cUyx+mM0aBhakaHPQNAQTXKFx01p8VdteZOE3
+hzBWBOURtCmAEvF5OYiiAhF8J2a3iLd48soKqDirCmTCv2ZdlYTBoSUeh10aUAsg
+EsxBu24LUTi4S8sCAwEAAaNjMGEwDgYDVR0PAQH/BAQDAgGGMA8GA1UdEwEB/wQF
+MAMBAf8wHQYDVR0OBBYEFLE+w2kD+L9HAdSYJhoIAu9jZCvDMB8GA1UdIwQYMBaA
+FLE+w2kD+L9HAdSYJhoIAu9jZCvDMA0GCSqGSIb3DQEBBQUAA4IBAQAcGgaX3Nec
+nzyIZgYIVyHbIUf4KmeqvxgydkAQV8GK83rZEWWONfqe/EW1ntlMMUu4kehDLI6z
+eM7b41N5cdblIZQB2lWHmiRk9opmzN6cN82oNLFpmyPInngiK3BD41VHMWEZ71jF
+hS9OMPagMRYjyOfiZRYzy78aG6A9+MpeizGLYAiJLQwGXFK3xPkKmNEVX58Svnw2
+Yzi9RKR/5CYrCsSXaQ3pjOLAEFe4yHYSkVXySGnYvCoCWw9E1CAx2/S6cCZdkGCe
+vEsXCS+0yx5DaMkHJ8HSXPfqIbloEpw8nL+e/IBcm2PN7EeqJSdnoDfzAIJ9VNep
++OkuE6N36B9K
+-----END CERTIFICATE-----
diff --git a/test/testdata/known_roots/GlobalSign.pem b/test/testdata/known_roots/GlobalSign.pem
new file mode 100644
index 0000000..511423f
--- /dev/null
+++ b/test/testdata/known_roots/GlobalSign.pem
@@ -0,0 +1,46 @@
+Certificate:
+    Data:
+        Version: 3 (0x2)
+        Serial Number:
+            2a:38:a4:1c:96:0a:04:de:42:b2:28:a5:0b:e8:34:98:02
+    Signature Algorithm: ecdsa-with-SHA256
+        Issuer: OU=GlobalSign ECC Root CA - R4, O=GlobalSign, CN=GlobalSign
+        Validity
+            Not Before: Nov 13 00:00:00 2012 GMT
+            Not After : Jan 19 03:14:07 2038 GMT
+        Subject: OU=GlobalSign ECC Root CA - R4, O=GlobalSign, CN=GlobalSign
+        Subject Public Key Info:
+            Public Key Algorithm: id-ecPublicKey
+                Public-Key: (256 bit)
+                pub: 
+                    04:b8:c6:79:d3:8f:6c:25:0e:9f:2e:39:19:1c:03:
+                    a4:ae:9a:e5:39:07:09:16:ca:63:b1:b9:86:f8:8a:
+                    57:c1:57:ce:42:fa:73:a1:f7:65:42:ff:1e:c1:00:
+                    b2:6e:73:0e:ff:c7:21:e5:18:a4:aa:d9:71:3f:a8:
+                    d4:b9:ce:8c:1d
+                ASN1 OID: prime256v1
+        X509v3 extensions:
+            X509v3 Key Usage: critical
+                Certificate Sign, CRL Sign
+            X509v3 Basic Constraints: critical
+                CA:TRUE
+            X509v3 Subject Key Identifier: 
+                54:B0:7B:AD:45:B8:E2:40:7F:FB:0A:6E:FB:BE:33:C9:3C:A3:84:D5
+    Signature Algorithm: ecdsa-with-SHA256
+         30:45:02:21:00:dc:92:a1:a0:13:a6:cf:03:b0:e6:c4:21:97:
+         90:fa:14:57:2d:03:ec:ee:3c:d3:6e:ca:a8:6c:76:bc:a2:de:
+         bb:02:20:27:a8:85:27:35:9b:56:c6:a3:f2:47:d2:b7:6e:1b:
+         02:00:17:aa:67:a6:15:91:de:fa:94:ec:7b:0b:f8:9f:84
+-----BEGIN CERTIFICATE-----
+MIIB4TCCAYegAwIBAgIRKjikHJYKBN5CsiilC+g0mAIwCgYIKoZIzj0EAwIwUDEk
+MCIGA1UECxMbR2xvYmFsU2lnbiBFQ0MgUm9vdCBDQSAtIFI0MRMwEQYDVQQKEwpH
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+DgYDVR0PAQH/BAQDAgEGMA8GA1UdEwEB/wQFMAMBAf8wHQYDVR0OBBYEFFSwe61F
+uOJAf/sKbvu+M8k8o4TVMAoGCCqGSM49BAMCA0gAMEUCIQDckqGgE6bPA7DmxCGX
+kPoUVy0D7O48027KqGx2vKLeuwIgJ6iFJzWbVsaj8kfSt24bAgAXqmemFZHe+pTs
+ewv4n4Q=
+-----END CERTIFICATE-----
diff --git a/test/testdata/known_roots/IL.StartCom Certification Authority+Go Daddy Secure Certification Authority.pem b/test/testdata/known_roots/IL.StartCom Certification Authority+Go Daddy Secure Certification Authority.pem
deleted file mode 100644
index eeae491..0000000
--- a/test/testdata/known_roots/IL.StartCom Certification Authority+Go Daddy Secure Certification Authority.pem
+++ /dev/null
@@ -1,73 +0,0 @@
------BEGIN CERTIFICATE-----
-MIIHyTCCBbGgAwIBAgIBATANBgkqhkiG9w0BAQUFADB9MQswCQYDVQQGEwJJTDEW
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-NOsF/5oirpt9P/FlUQqmMGqz9IgcgA38corog14=
------END CERTIFICATE-----
------BEGIN CERTIFICATE-----
-MIIE3jCCA8agAwIBAgICAwEwDQYJKoZIhvcNAQEFBQAwYzELMAkGA1UEBhMCVVMx
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-U+4=
------END CERTIFICATE-----
diff --git a/test/testdata/known_roots/SE.AddTrust External CA Root.pem b/test/testdata/known_roots/SE.AddTrust External CA Root.pem
deleted file mode 100644
index 02c3944..0000000
--- a/test/testdata/known_roots/SE.AddTrust External CA Root.pem
+++ /dev/null
@@ -1,26 +0,0 @@
------BEGIN CERTIFICATE-----
-MIIEZDCCA0ygAwIBAgIRALmfsKN7LvrBTlo9bsrluT0wDQYJKoZIhvcNAQEFBQAw
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-ZXQwggEiMA0GCSqGSIb3DQEBAQUAA4IBDwAwggEKAoIBAQClir/sHXJpaMQ8SpK1
-giyizJhK9GSuZkoTaIKiK2hXkHUbxJ09w6pspWXPbUwLK8ZFn32vHMabshKxe4fL
-d0kR/AEr9okwfnABK7+u4CBEs10D2oVrRFS2GFAUtri8v+5+n/mWDoqGc2XybQNs
-CoYyVdSYs6YO/+b8dEGfOrRD2XFoTtP32T35YIlejwpg72f9lUnvOi6Jh+s6jV8P
-hIJV6w3exVQojDiEPSQ3fV/KF6FAaQK4XyEspHL4TH0mtaJhEjnAvHDmN1Bw4WhV
-0Bm86alryZxYNTmpPXDD5AFNBIuL+5FfQgZm+s7QzZriguRGDv8L+YKePFvhiaPV
-AagTAgMBAAGjggFoMIIBZDAfBgNVHSMEGDAWgBQMvZNoDPPeq6NJays3V0fqkOO5
-7TAdBgNVHQ4EFgQU6YkL0qj0tSK5bsZfjDUNLwXUlFgwDgYDVR0PAQH/BAQDAgWg
-MAwGA1UdEwEB/wQCMAAwHQYDVR0lBBYwFAYIKwYBBQUHAwEGCCsGAQUFBwMCMCIG
-A1UdIAQbMBkwDQYLKwYBBAGyMQECAh0wCAYGZ4EMAQIBMDoGA1UdHwQzMDEwL6At
-oCuGKWh0dHA6Ly9jcmwudGNzLnRlcmVuYS5vcmcvVEVSRU5BU1NMQ0EuY3JsMG0G
-CCsGAQUFBwEBBGEwXzA1BggrBgEFBQcwAoYpaHR0cDovL2NydC50Y3MudGVyZW5h
-Lm9yZy9URVJFTkFTU0xDQS5jcnQwJgYIKwYBBQUHMAGGGmh0dHA6Ly9vY3NwLnRj
-cy50ZXJlbmEub3JnMBYGA1UdEQQPMA2CCyoubm9yZHUubmV0MA0GCSqGSIb3DQEB
-BQUAA4IBAQAdj2R0qT47oLIMnYw69qU58VZB/rnejwhNVdzLtLZ+vQ1YwcXoabOi
-9LmSOZ019ESWxZ415/FjvoLXYKpkq8w96bDw/jqPhUWwK2U6EpD/MlYUKWyAH9XP
-ZLBaYewZEBjkwxYIlroUboPWXUYJIDwotvNgSE9N8Xy1XZ4oi0UVfxxyo3XRpS49
-Ch1az16jKS5rF5R1Q/t6UxYrnfx4XMZHFx56ks6kpucxch37JJ/2i1O84/T9lX17
-7qwk+SO93EmtgxE40wtvL1i2cTZaNHcybyClV6N3Bm8Hu2L4e35SF761CMc4rzlu
-SbDmRK4Rxa5UmgfZnezD0snHVUCrzKzP
------END CERTIFICATE-----
diff --git a/test/testdata/known_roots/StartCom Certification Authority.pem b/test/testdata/known_roots/StartCom Certification Authority.pem
new file mode 100644
index 0000000..bf37b6a
--- /dev/null
+++ b/test/testdata/known_roots/StartCom Certification Authority.pem
@@ -0,0 +1,152 @@
+Certificate:
+    Data:
+        Version: 3 (0x2)
+        Serial Number: 1 (0x1)
+    Signature Algorithm: sha1WithRSAEncryption
+        Issuer: C=IL, O=StartCom Ltd., OU=Secure Digital Certificate Signing, CN=StartCom Certification Authority
+        Validity
+            Not Before: Sep 17 19:46:36 2006 GMT
+            Not After : Sep 17 19:46:36 2036 GMT
+        Subject: C=IL, O=StartCom Ltd., OU=Secure Digital Certificate Signing, CN=StartCom Certification Authority
+        Subject Public Key Info:
+            Public Key Algorithm: rsaEncryption
+                Public-Key: (4096 bit)
+                Modulus:
+                    00:c1:88:db:09:bc:6c:46:7c:78:9f:95:7b:b5:33:
+                    90:f2:72:62:d6:c1:36:20:22:24:5e:ce:e9:77:f2:
+                    43:0a:a2:06:64:a4:cc:8e:36:f8:38:e6:23:f0:6e:
+                    6d:b1:3c:dd:72:a3:85:1c:a1:d3:3d:b4:33:2b:d3:
+                    2f:af:fe:ea:b0:41:59:67:b6:c4:06:7d:0a:9e:74:
+                    85:d6:79:4c:80:37:7a:df:39:05:52:59:f7:f4:1b:
+                    46:43:a4:d2:85:85:d2:c3:71:f3:75:62:34:ba:2c:
+                    8a:7f:1e:8f:ee:ed:34:d0:11:c7:96:cd:52:3d:ba:
+                    33:d6:dd:4d:de:0b:3b:4a:4b:9f:c2:26:2f:fa:b5:
+                    16:1c:72:35:77:ca:3c:5d:e6:ca:e1:26:8b:1a:36:
+                    76:5c:01:db:74:14:25:fe:ed:b5:a0:88:0f:dd:78:
+                    ca:2d:1f:07:97:30:01:2d:72:79:fa:46:d6:13:2a:
+                    a8:b9:a6:ab:83:49:1d:e5:f2:ef:dd:e4:01:8e:18:
+                    0a:8f:63:53:16:85:62:a9:0e:19:3a:cc:b5:66:a6:
+                    c2:6b:74:07:e4:2b:e1:76:3e:b4:6d:d8:f6:44:e1:
+                    73:62:1f:3b:c4:be:a0:53:56:25:6c:51:09:f7:aa:
+                    ab:ca:bf:76:fd:6d:9b:f3:9d:db:bf:3d:66:bc:0c:
+                    56:aa:af:98:48:95:3a:4b:df:a7:58:50:d9:38:75:
+                    a9:5b:ea:43:0c:02:ff:99:eb:e8:6c:4d:70:5b:29:
+                    65:9c:dd:aa:5d:cc:af:01:31:ec:0c:eb:d2:8d:e8:
+                    ea:9c:7b:e6:6e:f7:27:66:0c:1a:48:d7:6e:42:e3:
+                    3f:de:21:3e:7b:e1:0d:70:fb:63:aa:a8:6c:1a:54:
+                    b4:5c:25:7a:c9:a2:c9:8b:16:a6:bb:2c:7e:17:5e:
+                    05:4d:58:6e:12:1d:01:ee:12:10:0d:c6:32:7f:18:
+                    ff:fc:f4:fa:cd:6e:91:e8:36:49:be:1a:48:69:8b:
+                    c2:96:4d:1a:12:b2:69:17:c1:0a:90:d6:fa:79:22:
+                    48:bf:ba:7b:69:f8:70:c7:fa:7a:37:d8:d8:0d:d2:
+                    76:4f:57:ff:90:b7:e3:91:d2:dd:ef:c2:60:b7:67:
+                    3a:dd:fe:aa:9c:f0:d4:8b:7f:72:22:ce:c6:9f:97:
+                    b6:f8:af:8a:a0:10:a8:d9:fb:18:c6:b6:b5:5c:52:
+                    3c:89:b6:19:2a:73:01:0a:0f:03:b3:12:60:f2:7a:
+                    2f:81:db:a3:6e:ff:26:30:97:f5:8b:dd:89:57:b6:
+                    ad:3d:b3:af:2b:c5:b7:76:02:f0:a5:d6:2b:9a:86:
+                    14:2a:72:f6:e3:33:8c:5d:09:4b:13:df:bb:8c:74:
+                    13:52:4b
+                Exponent: 65537 (0x10001)
+        X509v3 extensions:
+            X509v3 Basic Constraints: 
+                CA:TRUE
+            X509v3 Key Usage: 
+                Digital Signature, Key Encipherment, Key Agreement, Certificate Sign, CRL Sign
+            X509v3 Subject Key Identifier: 
+                4E:0B:EF:1A:A4:40:5B:A5:17:69:87:30:CA:34:68:43:D0:41:AE:F2
+            X509v3 CRL Distribution Points: 
+
+                Full Name:
+                  URI:http://cert.startcom.org/sfsca-crl.crl
+
+                Full Name:
+                  URI:http://crl.startcom.org/sfsca-crl.crl
+
+            X509v3 Certificate Policies: 
+                Policy: 1.3.6.1.4.1.23223.1.1.1
+                  CPS: http://cert.startcom.org/policy.pdf
+                  CPS: http://cert.startcom.org/intermediate.pdf
+                  User Notice:
+                    Organization: Start Commercial (StartCom) Ltd.
+                    Number: 1
+                    Explicit Text: Limited Liability, read the section *Legal Limitations* of the StartCom Certification Authority Policy available at http://cert.startcom.org/policy.pdf
+
+            Netscape Cert Type: 
+                SSL CA, S/MIME CA, Object Signing CA
+            Netscape Comment: 
+                StartCom Free SSL Certification Authority
+    Signature Algorithm: sha1WithRSAEncryption
+         16:6c:99:f4:66:0c:34:f5:d0:85:5e:7d:0a:ec:da:10:4e:38:
+         1c:5e:df:a6:25:05:4b:91:32:c1:e8:3b:f1:3d:dd:44:09:5b:
+         07:49:8a:29:cb:66:02:b7:b1:9a:f7:25:98:09:3c:8e:1b:e1:
+         dd:36:87:2b:4b:bb:68:d3:39:66:3d:a0:26:c7:f2:39:91:1d:
+         51:ab:82:7b:7e:d5:ce:5a:e4:e2:03:57:70:69:97:08:f9:5e:
+         58:a6:0a:df:8c:06:9a:45:16:16:38:0a:5e:57:f6:62:c7:7a:
+         02:05:e6:bc:1e:b5:f2:9e:f4:a9:29:83:f8:b2:14:e3:6e:28:
+         87:44:c3:90:1a:de:38:a9:3c:ac:43:4d:64:45:ce:dd:28:a9:
+         5c:f2:73:7b:04:f8:17:e8:ab:b1:f3:2e:5c:64:6e:73:31:3a:
+         12:b8:bc:b3:11:e4:7d:8f:81:51:9a:3b:8d:89:f4:4d:93:66:
+         7b:3c:03:ed:d3:9a:1d:9a:f3:65:50:f5:a0:d0:75:9f:2f:af:
+         f0:ea:82:43:98:f8:69:9c:89:79:c4:43:8e:46:72:e3:64:36:
+         12:af:f7:25:1e:38:89:90:77:7e:c3:6b:6a:b9:c3:cb:44:4b:
+         ac:78:90:8b:e7:c7:2c:1e:4b:11:44:c8:34:52:27:cd:0a:5d:
+         9f:85:c1:89:d5:1a:78:f2:95:10:53:32:dd:80:84:66:75:d9:
+         b5:68:28:fb:61:2e:be:84:a8:38:c0:99:12:86:a5:1e:67:64:
+         ad:06:2e:2f:a9:70:85:c7:96:0f:7c:89:65:f5:8e:43:54:0e:
+         ab:dd:a5:80:39:94:60:c0:34:c9:96:70:2c:a3:12:f5:1f:48:
+         7b:bd:1c:7e:6b:b7:9d:90:f4:22:3b:ae:f8:fc:2a:ca:fa:82:
+         52:a0:ef:af:4b:55:93:eb:c1:b5:f0:22:8b:ac:34:4e:26:22:
+         04:a1:87:2c:75:4a:b7:e5:7d:13:d7:b8:0c:64:c0:36:d2:c9:
+         2f:86:12:8c:23:09:c1:1b:82:3b:73:49:a3:6a:57:87:94:e5:
+         d6:78:c5:99:43:63:e3:4d:e0:77:2d:e1:65:99:72:69:04:1a:
+         47:09:e6:0f:01:56:24:fb:1f:bf:0e:79:a9:58:2e:b9:c4:09:
+         01:7e:95:ba:6d:00:06:3e:b2:ea:4a:10:39:d8:d0:2b:f5:bf:
+         ec:75:bf:97:02:c5:09:1b:08:dc:55:37:e2:81:fb:37:84:43:
+         62:20:ca:e7:56:4b:65:ea:fe:6c:c1:24:93:24:a1:34:eb:05:
+         ff:9a:22:ae:9b:7d:3f:f1:65:51:0a:a6:30:6a:b3:f4:88:1c:
+         80:0d:fc:72:8a:e8:83:5e
+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
diff --git a/test/testdata/known_roots/US.DigiCert High Assurance EV Root CA.pem b/test/testdata/known_roots/US.DigiCert High Assurance EV Root CA.pem
deleted file mode 100644
index c9eb314..0000000
--- a/test/testdata/known_roots/US.DigiCert High Assurance EV Root CA.pem
+++ /dev/null
@@ -1,39 +0,0 @@
------BEGIN CERTIFICATE-----
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deleted file mode 100644
index 8c4c741..0000000
--- a/test/testdata/known_roots/US.DigiCert SHA2 High Assurance Server CA.pem
+++ /dev/null
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diff --git a/test/testdata/known_roots/US.RapidSSL CA.pem b/test/testdata/known_roots/US.RapidSSL CA.pem
deleted file mode 100644
index 71af595..0000000
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deleted file mode 100644
index 6f25824..0000000
--- a/test/testdata/known_roots/US.thawte Primary Root CA.pem
+++ /dev/null
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