Update the certificate files to make the test pass on Debian 10

The old certificate files (for example, test/rubygems/ca_cert.pem) were
signed by SHA1.  This message digest is considered too weak and rejected
by OpenSSL 1.1.1 or later.  Because of this, the test suite does not
pass on Debian 10.

https://rubyci.org/logs/rubyci.s3.amazonaws.com/debian/ruby-master/log/20190527T123003Z.fail.html.gz#test%2Frubygems

This change regenerates the files.
A shell script for the regeneration (util/create_certs.sh) is also
added.

1 files changed, 103 insertions, 45 deletions

diff --git a/test/rubygems/client.pem b/test/rubygems/client.pem
index 63a52c574a..9824d9cd4a 100644
--- a/test/rubygems/client.pem
+++ b/test/rubygems/client.pem
@@ -1,49 +1,107 @@
+Certificate:
+    Data:
+        Version: 3 (0x2)
+        Serial Number: 2 (0x2)
+        Signature Algorithm: sha256WithRSAEncryption
+        Issuer: C=JP, ST=Tokyo, O=RubyGemsTest, CN=CA
+        Validity
+            Not Before: Jan  1 00:00:00 2009 GMT
+            Not After : Dec 31 23:59:59 2049 GMT
+        Subject: C=JP, ST=Tokyo, O=RubyGemsTest, CN=client
+        Subject Public Key Info:
+            Public Key Algorithm: rsaEncryption
+                RSA Public-Key: (2048 bit)
+                Modulus:
+                    00:c7:87:4a:f4:77:32:54:0e:56:0a:80:04:ac:b5:
+                    71:b6:29:9f:c6:aa:f5:9b:3b:75:0a:c2:55:2c:cf:
+                    34:c8:78:b7:38:ed:af:48:7d:7e:6c:4c:39:d8:0f:
+                    cf:fc:ba:f5:e0:50:47:a0:76:72:cf:c7:de:91:a6:
+                    1a:99:8b:5f:6f:0c:06:fc:f1:78:6b:0f:c5:bc:91:
+                    cc:91:f0:85:05:5d:66:d3:cb:ac:54:a1:bc:9b:6c:
+                    e8:17:f2:17:20:b8:b0:b2:03:cc:9d:a6:8e:c0:33:
+                    6c:8b:5f:ef:1a:f6:38:6d:80:3f:4d:b5:e3:a5:a4:
+                    f1:86:15:76:62:8b:6c:9d:fa:24:59:32:8f:60:b0:
+                    80:f4:22:a2:68:57:13:aa:60:e4:cd:01:34:87:76:
+                    2a:15:ca:86:9b:b7:aa:b5:66:fd:72:d8:35:86:7e:
+                    c8:1d:a1:71:71:85:ac:65:64:c2:ea:19:52:7b:34:
+                    1e:12:c4:87:8f:75:d7:65:35:85:dd:5a:33:5d:2c:
+                    31:f8:2f:b4:84:a7:b6:56:56:2b:e1:9c:c9:c8:f9:
+                    41:18:40:19:d9:bb:d4:3c:0d:c4:93:dc:b8:d1:99:
+                    44:d0:3d:a2:de:de:29:7f:d6:0c:a8:07:df:bc:ed:
+                    66:5b:aa:cc:64:44:b8:79:49:ed:48:77:88:e2:d1:
+                    94:b9
+                Exponent: 65537 (0x10001)
+        X509v3 extensions:
+            X509v3 Basic Constraints: 
+                CA:FALSE
+            Netscape Comment: 
+                OpenSSL Generated Certificate
+            X509v3 Subject Key Identifier: 
+                EF:5A:B6:46:3A:44:5F:0F:E4:F9:E0:6B:B2:C8:45:8D:07:0D:70:15
+            X509v3 Authority Key Identifier: 
+                keyid:D6:DB:87:AD:D3:45:FC:D4:8D:6B:2B:97:F4:CF:95:08:B6:FA:62:A4
+
+    Signature Algorithm: sha256WithRSAEncryption
+         55:b5:5a:51:cd:0b:2a:81:10:e6:d1:d9:d6:6c:78:99:9b:01:
+         18:e7:91:32:89:6c:fd:3b:eb:c0:03:82:f8:5c:e2:19:c1:04:
+         5d:37:10:5b:97:0b:be:76:8b:98:71:d4:63:68:8c:0e:61:c9:
+         ec:3d:cf:ed:01:57:9f:9b:53:07:27:1a:7e:20:f3:8a:13:8c:
+         4f:30:bd:e6:a0:eb:d7:2c:a1:95:35:3f:a6:53:c9:00:11:f9:
+         f6:b3:9d:53:e4:b5:71:33:f1:dc:86:47:94:6f:a9:64:01:d4:
+         c5:1b:7c:95:0a:02:0e:6f:d1:70:94:5a:5f:7b:ac:77:f7:56:
+         35:6b:ad:a2:e2:fc:74:91:1e:c3:46:fc:32:01:19:a1:a5:27:
+         f3:31:14:79:86:7c:4d:9a:83:7c:28:03:9f:ac:3c:8c:e4:d9:
+         c8:b0:4e:a3:fe:75:cd:a9:8e:34:57:3b:6b:14:d6:df:35:42:
+         7b:c9:3d:88:0d:ea:5f:1e:c6:5f:80:0e:a5:b9:bf:25:06:ac:
+         ac:38:7f:cc:f9:a5:9e:68:cc:08:77:1e:de:45:0d:91:e5:38:
+         d2:b3:62:ea:03:ec:3c:18:9f:16:ec:43:21:30:7a:a7:8b:42:
+         c6:cb:e4:a8:ac:0b:15:82:a5:9c:93:b2:2c:20:1f:d2:de:e1:
+         cf:c0:74:bc
 -----BEGIN CERTIFICATE-----
-MIIDgTCCAmmgAwIBAgICEAIwDQYJKoZIhvcNAQEFBQAwRTELMAkGA1UEBhMCQVUx
-EzARBgNVBAgTClNvbWUtU3RhdGUxITAfBgNVBAoTGEludGVybmV0IFdpZGdpdHMg
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+nxbsQyEweqeLQsbL5KisCxWCpZyTsiwgH9Le4c/AdLw=
 -----END CERTIFICATE-----
-
 -----BEGIN RSA PRIVATE KEY-----
-MIIEowIBAAKCAQEAsPpXK6XVnJaEAoAJcXDNxo7wcWd8o84ukoFykQUoueItCdS1
-8c51inCeT/ztfo/u4i4xyvjlqrGtPhGyk8ErvtLcdtIdM/vmCRfRlhKAsE+Wh9ZK
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-sQW30tSSrmYogUpp15mWiJz8A3EvqiCTlQv5JwwMFGnjVl8+HNfuLghK/vqY/Eb9
-YmwTKxPFejqN7E0Mud2ylNiuPTSLwBy8UvV9uxOlDc6lMyZjVRO0woiEzrjw5dKF
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+ScifJC8f/HoKI+Ddn0hrFF0ndBJ7g4mB9sm7RBHfm+1steGCV3Q=
 -----END RSA PRIVATE KEY-----