diff --git a/src/System.Net.TestData/TestDataCertificates/testclienteku.contoso.com.pfx b/src/System.Net.TestData/TestDataCertificates/testclienteku.contoso.com.pfx new file mode 100644 index 0000000000..fbebfb015f Binary files /dev/null and b/src/System.Net.TestData/TestDataCertificates/testclienteku.contoso.com.pfx differ diff --git a/src/System.Net.TestData/TestDataCertificates/testnoeku.contoso.com.pfx b/src/System.Net.TestData/TestDataCertificates/testnoeku.contoso.com.pfx new file mode 100644 index 0000000000..d65da8750e Binary files /dev/null and b/src/System.Net.TestData/TestDataCertificates/testnoeku.contoso.com.pfx differ diff --git a/src/System.Net.TestData/TestDataCertificates/testselfsignedclienteku.contoso.com.pfx b/src/System.Net.TestData/TestDataCertificates/testselfsignedclienteku.contoso.com.pfx new file mode 100644 index 0000000000..e5779670c5 Binary files /dev/null and b/src/System.Net.TestData/TestDataCertificates/testselfsignedclienteku.contoso.com.pfx differ diff --git a/src/System.Net.TestData/TestDataCertificates/testselfsignedservereku.contoso.com.pfx b/src/System.Net.TestData/TestDataCertificates/testselfsignedservereku.contoso.com.pfx new file mode 100644 index 0000000000..49f85f1e17 Binary files /dev/null and b/src/System.Net.TestData/TestDataCertificates/testselfsignedservereku.contoso.com.pfx differ diff --git a/src/System.Net.TestData/TestDataCertificates/testservereku.contoso.com.pfx b/src/System.Net.TestData/TestDataCertificates/testservereku.contoso.com.pfx new file mode 100644 index 0000000000..1b6111f731 Binary files /dev/null and b/src/System.Net.TestData/TestDataCertificates/testservereku.contoso.com.pfx differ