Use utf8 to encode attribute values instead of ascii
diff --git a/src/cryptography/hazmat/backends/openssl/backend.py b/src/cryptography/hazmat/backends/openssl/backend.py
index 7963b5d..78de79d 100644
--- a/src/cryptography/hazmat/backends/openssl/backend.py
+++ b/src/cryptography/hazmat/backends/openssl/backend.py
@@ -90,12 +90,12 @@
subject = backend._lib.X509_NAME_new()
subject = backend._ffi.gc(subject, backend._lib.X509_NAME_free)
for attribute in attributes:
- value = attribute.value.encode('ascii')
+ value = attribute.value.encode('utf8')
obj = _txt2obj(backend, attribute.oid.dotted_string)
res = backend._lib.X509_NAME_add_entry_by_OBJ(
subject,
obj,
- backend._lib.MBSTRING_ASC,
+ backend._lib.MBSTRING_UTF8,
value,
-1, -1, 0,
)