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.

1 files changed, 83 insertions, 0 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-----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+-----END CERTIFICATE-----