Add CertIssuerSource interface and CertIssuerSourceStatic implementation.

net/data/cert_issuer_source_static_unittest/root.pem

+Generated by ./generate-certs.py.
+Refer to generator script docstring for details.
+Certificate:
+    Data:
+        Version: 3 (0x2)
+        Serial Number: 1 (0x1)
+    Signature Algorithm: sha256WithRSAEncryption
+        Issuer: CN=Root
+        Validity
+            Not Before: Jan  1 12:00:00 2015 GMT
+            Not After : Jan  1 12:00:00 2016 GMT
+        Subject: CN=Root
+        Subject Public Key Info:
+            Public Key Algorithm: rsaEncryption
+                Public-Key: (2048 bit)
+                Modulus:
+                    00:a5:0a:40:af:c7:bf:e5:59:4c:96:13:a9:79:fe:
+                    ea:f1:ed:96:d3:c2:44:56:9a:a8:d1:15:1b:df:43:
+                    17:6e:4e:6c:9f:b8:4b:5b:6e:65:cb:ca:fe:00:0d:
+                    39:7b:00:55:69:ae:ef:28:97:67:2e:49:20:e3:03:
+                    78:98:66:b8:f3:f9:fc:79:ca:ec:f9:2d:8e:f4:33:
+                    3c:74:e4:d7:07:08:9b:6f:a9:1b:50:c2:9a:5e:57:
+                    15:cc:7c:64:e0:14:9c:77:7d:62:69:83:db:f2:85:
+                    21:e9:02:41:18:45:0e:3a:3b:47:af:4a:c6:04:eb:
+                    5b:bf:dc:09:d8:c1:ae:31:b3:a8:42:83:5f:0a:54:
+                    ff:fa:3e:28:b7:b4:45:5e:c7:4d:b7:d5:d1:b0:e7:
+                    6c:87:d8:36:cb:5d:25:a9:18:d4:0b:fe:d8:47:88:
+                    78:4e:f9:40:af:a2:3c:d7:91:25:16:b7:15:34:13:
+                    6f:ae:c3:d7:2a:36:10:22:92:6c:9d:68:62:92:70:
+                    a9:c6:ff:98:9e:ea:cf:9f:a6:17:61:ff:f5:2e:5c:
+                    f5:79:cb:44:6e:be:a6:cf:b8:e6:8c:50:34:04:b3:
+                    ee:79:cf:67:7b:f9:ad:b5:85:50:11:10:2f:e1:43:
+                    7d:fd:1a:45:5c:7b:5d:a5:bd:50:ac:5b:19:5e:20:
+                    33:a9
+                Exponent: 65537 (0x10001)
+        X509v3 extensions:
+            X509v3 Subject Key Identifier: 
+                3D:DD:2C:00:BE:89:E0:43:4C:05:77:67:07:60:FC:AC:BE:48:D0:A4
+            X509v3 Authority Key Identifier: 
+                keyid:3D:DD:2C:00:BE:89:E0:43:4C:05:77:67:07:60:FC:AC:BE:48:D0:A4
+
+            Authority Information Access: 
+                CA Issuers - URI:http://url-for-aia/Root.cer
+
+            X509v3 CRL Distribution Points: 
+
+                Full Name:
+                  URI:http://url-for-crl/Root.crl
+
+            X509v3 Key Usage: critical
+                Certificate Sign, CRL Sign
+            X509v3 Basic Constraints: critical
+                CA:TRUE
+    Signature Algorithm: sha256WithRSAEncryption
+         47:35:34:46:02:c2:86:e2:11:86:8c:cd:65:15:08:a5:2a:f7:
+         21:d8:d7:ae:b8:0a:c2:e7:0c:a6:f6:bc:50:d4:e1:7e:53:f6:
+         77:7d:8d:39:a5:85:b6:e8:0d:ac:a8:25:16:da:f6:9d:f7:1f:
+         18:06:0b:bf:dd:e1:90:4e:90:7c:2b:24:77:b1:58:9b:39:fc:
+         2e:d1:0e:1d:c7:a4:c7:70:2c:92:78:19:49:5c:7c:3d:5a:a7:
+         b7:f3:89:f5:4f:48:1d:39:4f:53:a8:6f:e3:7c:62:9b:db:c5:
+         3f:ca:8a:e9:fe:83:f3:b9:66:20:28:89:1a:2c:8f:8a:07:6e:
+         4d:7b:fb:7b:f9:48:6f:07:d0:b2:f3:7d:d6:c8:42:1f:81:41:
+         0b:af:6b:4d:e2:19:6a:4a:1e:37:5b:de:fe:f8:82:e5:0b:ef:
+         bd:20:0f:e3:2a:81:1a:35:ab:6b:38:d3:a9:29:09:f5:28:a8:
+         13:d1:c4:a7:aa:ea:3f:e3:8b:be:20:24:93:8d:06:da:8c:ce:
+         01:b1:61:ce:33:bb:ea:96:d0:01:11:e0:81:06:bc:1c:7b:62:
+         99:d1:f3:ef:a8:a7:ec:6a:bb:e9:2c:d6:d1:52:f0:a1:b6:e2:
+         71:6a:f6:06:2d:9f:79:14:28:47:b8:dd:d9:02:65:a9:53:cf:
+         f5:3d:b9:ee
+-----BEGIN CERTIFICATE-----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+-----END CERTIFICATE-----