Check keyUsage in SSL client and server

tests/data_files/server2.ku-ds.crt

@@ -0,0 +1,21 @@
+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----

tests/data_files/server2.ku-ds_ke.crt

@@ -0,0 +1,21 @@
+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----

tests/data_files/server2.ku-ka.crt

@@ -0,0 +1,21 @@
+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----

tests/data_files/server2.ku-ke.crt

@@ -0,0 +1,21 @@
+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----

tests/data_files/server5.ku-ds.crt

@@ -0,0 +1,14 @@
+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----

tests/data_files/server5.ku-ka.crt

@@ -0,0 +1,14 @@
+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----

tests/data_files/server5.ku-ke.crt

@@ -0,0 +1,14 @@
+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----