diff --git a/docs/development/test-vectors.rst b/docs/development/test-vectors.rst
index 4162809d27df..f93baa1a29b5 100644
--- a/docs/development/test-vectors.rst
+++ b/docs/development/test-vectors.rst
@@ -1002,6 +1002,12 @@ Custom PKCS7 Test Vectors
 * ``pkcs7/enveloped-no-content.der``- A DER encoded PKCS7 file with
   enveloped data, without encrypted content, with key encrypted under the
   public key of ``x509/custom/ca/rsa_ca.pem``.
+* ``pkcs7/ascii-san.pem`` - An invalid certificate adapted for S/MIME signature
+  & verification. It has an ASCII subject alternative name stored as
+  `otherName`.
+* ``pkcs7/non-ascii-san.pem`` - An invalid certificate adapted for S/MIME
+  signature & verification. It has an non-ASCII subject alternative name stored
+  as `rfc822Name`.
 
 Custom OpenSSH Test Vectors
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~
diff --git a/vectors/cryptography_vectors/pkcs7/ascii-san.pem b/vectors/cryptography_vectors/pkcs7/ascii-san.pem
new file mode 100644
index 000000000000..7e184abcbe3c
--- /dev/null
+++ b/vectors/cryptography_vectors/pkcs7/ascii-san.pem
@@ -0,0 +1,23 @@
+-----BEGIN CERTIFICATE-----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+-----END CERTIFICATE-----
diff --git a/vectors/cryptography_vectors/pkcs7/non-ascii-san.pem b/vectors/cryptography_vectors/pkcs7/non-ascii-san.pem
new file mode 100644
index 000000000000..f590d881e68e
--- /dev/null
+++ b/vectors/cryptography_vectors/pkcs7/non-ascii-san.pem
@@ -0,0 +1,23 @@
+-----BEGIN CERTIFICATE-----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+-----END CERTIFICATE-----