diff --git a/docs/development/test-vectors.rst b/docs/development/test-vectors.rst
index 718678b..3c27b5d 100644
--- a/docs/development/test-vectors.rst
+++ b/docs/development/test-vectors.rst
@@ -74,8 +74,9 @@
   `OpenSSL example key`_ for RSA.
 * DER conversions of `enc-rsa-pkcs8.pem`_, `enc2-rsa-pkcs8.pem`_, and
   `unenc-rsa-pkcs8.pem`_.
-* ``asymmetric/public/PKCS1/rsa.pub.pem`` is a PKCS1 conversion of the public
-  key from ``asymmetric/PKCS8/unenc-rsa-pkcs8.pem``.
+* ``asymmetric/public/PKCS1/rsa.pub.pem`` and
+  ``asymmetric/public/PKCS1/rsa.pub.der`` are PKCS1 conversions of the public
+  key from ``asymmetric/PKCS8/unenc-rsa-pkcs8.pem`` using PEM and DER encoding.
 
 X.509
 ~~~~~
diff --git a/vectors/cryptography_vectors/asymmetric/public/PKCS1/rsa.pub.der b/vectors/cryptography_vectors/asymmetric/public/PKCS1/rsa.pub.der
new file mode 100644
index 0000000..4bccbb2
--- /dev/null
+++ b/vectors/cryptography_vectors/asymmetric/public/PKCS1/rsa.pub.der
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