diff --git a/docs/development/test-vectors.rst b/docs/development/test-vectors.rst
index 5353b1d..f239db9 100644
--- a/docs/development/test-vectors.rst
+++ b/docs/development/test-vectors.rst
@@ -134,6 +134,14 @@
   subject alternative name extension with the ``registeredID`` general name.
 * ``all_key_usages.pem`` - An RSA 2048 bit self-signed certificate containing
   a key usage extension with all nine purposes set to true.
+* ``san_idna_names.pem`` - An RSA 2048 bit self-signed certificate containing
+  a subject alternative name extension with ``rfc822Name``, ``dNSName``, and
+  ``uniformResourceIdentifier`` general names with IDNA (:rfc:`5895`) encoding.
+* ``san_rfc822_names.pem`` - An RSA 2048 bit self-signed certificate containing
+  a subject alternative name extension with various ``rfc822Name`` values.
+* ``san_uri_with_port.pem`` - An RSA 2048 bit self-signed certificate
+  containing a subject alternative name extension with various
+  ``uniformResourceIdentifier`` values.
 
 Custom X.509 Request Vectors
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
diff --git a/vectors/cryptography_vectors/x509/custom/san_idna_names.pem b/vectors/cryptography_vectors/x509/custom/san_idna_names.pem
new file mode 100644
index 0000000..29034b8
--- /dev/null
+++ b/vectors/cryptography_vectors/x509/custom/san_idna_names.pem
@@ -0,0 +1,19 @@
+-----BEGIN CERTIFICATE-----
+MIIDGDCCAgCgAwIBAgITBmkKn/MvOUXQk1/lN2si9LdhbTANBgkqhkiG9w0BAQUF
+ADAPMQ0wCwYDVQQKDARQeUNBMB4XDTE1MDQyMDEwNTI0NloXDTE2MDQxOTEwNTI0
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+ddn9wNOpNYiILGwg1FFtGUuqi9z/rZb3zZlA3g==
+-----END CERTIFICATE-----
diff --git a/vectors/cryptography_vectors/x509/custom/san_rfc822_names.pem b/vectors/cryptography_vectors/x509/custom/san_rfc822_names.pem
new file mode 100644
index 0000000..f07e6ba
--- /dev/null
+++ b/vectors/cryptography_vectors/x509/custom/san_rfc822_names.pem
@@ -0,0 +1,19 @@
+-----BEGIN CERTIFICATE-----
+MIIDDjCCAfagAwIBAgITBmkNiyOeghKn10MwmYC7ggPHDjANBgkqhkiG9w0BAQUF
+ADAPMQ0wCwYDVQQKDARQeUNBMB4XDTE1MDQyMDEzMzgxOFoXDTE2MDQxOTEzMzgx
+OFowDzENMAsGA1UECgwEUHlDQTCCASIwDQYJKoZIhvcNAQEBBQADggEPADCCAQoC
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+ZLL0a0t1JexOoqEvUORZXAFL
+-----END CERTIFICATE-----
diff --git a/vectors/cryptography_vectors/x509/custom/san_uri_with_port.pem b/vectors/cryptography_vectors/x509/custom/san_uri_with_port.pem
new file mode 100644
index 0000000..ef5469c
--- /dev/null
+++ b/vectors/cryptography_vectors/x509/custom/san_uri_with_port.pem
@@ -0,0 +1,19 @@
+-----BEGIN CERTIFICATE-----
+MIIDCzCCAfOgAwIBAgITBmkNrLuW5WVCtzoww7S9wuDJgzANBgkqhkiG9w0BAQUF
+ADAPMQ0wCwYDVQQKDARQeUNBMB4XDTE1MDQyMDEzNDU0NFoXDTE2MDQxOTEzNDU0
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+vpZ0upM8Tx81CkAGf/3m
+-----END CERTIFICATE-----