diff --git a/test/integration/testdata/127.0.0.1.crt b/test/integration/testdata/127.0.0.1.crt
index 589e85d95..a57717c0a 100644
--- a/test/integration/testdata/127.0.0.1.crt
+++ b/test/integration/testdata/127.0.0.1.crt
@@ -1,12 +1,20 @@
 -----BEGIN CERTIFICATE-----
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 -----END CERTIFICATE-----
diff --git a/test/integration/testdata/127.0.0.1.key b/test/integration/testdata/127.0.0.1.key
index dba427a5c..44a121422 100644
--- a/test/integration/testdata/127.0.0.1.key
+++ b/test/integration/testdata/127.0.0.1.key
@@ -1,16 +1,28 @@
 -----BEGIN PRIVATE KEY-----
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 -----END PRIVATE KEY-----
diff --git a/test/integration/testdata/ca.crt b/test/integration/testdata/ca.crt
index 07f61370a..be6778e93 100644
--- a/test/integration/testdata/ca.crt
+++ b/test/integration/testdata/ca.crt
@@ -1,12 +1,18 @@
 -----BEGIN CERTIFICATE-----
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 -----END CERTIFICATE-----
diff --git a/test/integration/testdata/client.crt b/test/integration/testdata/client.crt
index c53b2f215..8c0f74db7 100644
--- a/test/integration/testdata/client.crt
+++ b/test/integration/testdata/client.crt
@@ -1,11 +1,19 @@
 -----BEGIN CERTIFICATE-----
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 -----END CERTIFICATE-----
diff --git a/test/integration/testdata/client.key b/test/integration/testdata/client.key
index a037f5af1..dddd2593d 100644
--- a/test/integration/testdata/client.key
+++ b/test/integration/testdata/client.key
@@ -1,16 +1,28 @@
 -----BEGIN PRIVATE KEY-----
-MIICdQIBADANBgkqhkiG9w0BAQEFAASCAl8wggJbAgEAAoGBAMuVRM/ipKPuzpRm
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+9ulB6MwuY2oGlgmUG0oaxfh8ExRN6sJW3R6ah7j6JEVSNdorYwRV80/mc/NGpfHn
+q5NDot0khjIlfyILQajL58YBmOJrBrSIpXy3rhs0ZlZwgHrpJTIrfiQWev26lFDD
+XjCSYFr2jyYz1uOtp+ro5FE=
 -----END PRIVATE KEY-----
diff --git a/test/integration/testdata/generate.sh b/test/integration/testdata/generate.sh
new file mode 100755
index 000000000..e39ffd8b7
--- /dev/null
+++ b/test/integration/testdata/generate.sh
@@ -0,0 +1,9 @@
+#!/bin/sh
+# Generate new 127.0.0.1.crt, 127.0.0.1.key, client.crt, client.key, ca.crt,
+# and ca.key.  The ca.key isn't kept in source control because we can just
+# make a new one and make a new version of everything that it signed.
+config=`mktemp`
+trap 'rm -f $config' EXIT
+openssl req -config $config -new -nodes -newkey rsa:2048 -keyout ca.key -x509 -out ca.crt -subj "/CN=Test CA" -days 730 -addext basicConstraints=CA:TRUE -addext subjectKeyIdentifier=hash
+openssl req -config $config -new -nodes -newkey rsa:2048 -keyout 127.0.0.1.key -x509 -out 127.0.0.1.crt -subj "/CN=127.0.0.1" -CA ca.crt -CAkey ca.key -days 730 -addext basicConstraints=CA:FALSE -addext subjectAltName=IP:127.0.0.1,IP:::1 -addext subjectKeyIdentifier=hash -addext authorityKeyIdentifier=keyid -addext extendedKeyUsage=serverAuth
+openssl req -config $config -new -nodes -newkey rsa:2048 -keyout client.key -x509 -out client.crt -subj "/CN=client" -CA ca.crt -CAkey ca.key -days 730 -addext basicConstraints=CA:FALSE -addext subjectKeyIdentifier=hash -addext authorityKeyIdentifier=keyid -addext extendedKeyUsage=clientAuth