- Added extra X509 regression and coverage tests
diff --git a/tests/data_files/crl_md4.pem b/tests/data_files/crl_md4.pem
new file mode 100644
index 0000000..6deef8c
--- /dev/null
+++ b/tests/data_files/crl_md4.pem
@@ -0,0 +1,11 @@
+-----BEGIN X509 CRL-----
+MIIBqzCBlDANBgkqhkiG9w0BAQMFADA7MQswCQYDVQQGEwJOTDERMA8GA1UEChMI
+UG9sYXJTU0wxGTAXBgNVBAMTEFBvbGFyU1NMIFRlc3QgQ0EXDTA5MDcxOTE5NTYz
+N1oXDTA5MDkxNzE5NTYzN1owKDASAgEBFw0wOTAyMDkyMTEyMzZaMBICAQMXDTA5
+MDIwOTIxMTIzNlowDQYJKoZIhvcNAQEDBQADggEBAJYibk/Hs6MAtkMGGib8PqZ6
+hfCYt+TQ56Vk90fTTzQ7DH4Ws8sTna2+FpeZCmImjiw6whaR8P/Mz+lRVAqySPAu
+E+r+aKJErr4PLhPKZ2UEaJF/MYWfUgomrLGPuHHd30YHXduqeBz4FowLZwNXxenS
++5RfbGl2U1fo3F/OCrEhNPhNEnEttKBCsKKHNArI9+QBDl7RU9aTsglX9gpIrPdh
+oC7PLZlrBwhyzLr9rCATGDDTzz/b3OP1IOvlmiHU4PC9RhTDMiXZKNkgOXfqWLXD
+BIE2oidYRgFURKrkMrl1MMZ9lLbHMIYW6U6Sx5ywbuMM+/SwiOhI1nDo1Gh3f3k=
+-----END X509 CRL-----