diff --git a/docs/development/test-vectors.rst b/docs/development/test-vectors.rst
index 69f54d3..aba7287 100644
--- a/docs/development/test-vectors.rst
+++ b/docs/development/test-vectors.rst
@@ -148,6 +148,10 @@
 * ``san_uri_with_port.pem`` - An RSA 2048 bit self-signed certificate
   containing a subject alternative name extension with various
   ``uniformResourceIdentifier`` values.
+* ``san_ipaddr.pem`` - An RSA 2048 bit self-signed certificate containing a
+  subject alternative name extension with an ``iPAddress`` value.
+* ``san_dirname.pem`` - An RSA 2048 bit self-signed certificate containing a
+  subject alternative name extension with a ``directoryName`` value.
 
 Custom X.509 Request Vectors
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
diff --git a/vectors/cryptography_vectors/x509/custom/san_dirname.pem b/vectors/cryptography_vectors/x509/custom/san_dirname.pem
new file mode 100644
index 0000000..2a2ab26
--- /dev/null
+++ b/vectors/cryptography_vectors/x509/custom/san_dirname.pem
@@ -0,0 +1,18 @@
+-----BEGIN CERTIFICATE-----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+-----END CERTIFICATE-----
diff --git a/vectors/cryptography_vectors/x509/custom/san_ipaddr.pem b/vectors/cryptography_vectors/x509/custom/san_ipaddr.pem
new file mode 100644
index 0000000..c7ef69e
--- /dev/null
+++ b/vectors/cryptography_vectors/x509/custom/san_ipaddr.pem
@@ -0,0 +1,18 @@
+-----BEGIN CERTIFICATE-----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+-----END CERTIFICATE-----