1 files changed, 27 insertions, 0 deletions
diff --git a/providers/common/der/der_dsa_key.c b/providers/common/der/der_dsa_key.c
new file mode 100644
index 000000000000..dc7b2fe8faa6
--- /dev/null
+++ b/providers/common/der/der_dsa_key.c
@@ -0,0 +1,27 @@
+/*
+ * Copyright 2020 The OpenSSL Project Authors. All Rights Reserved.
+ *
+ * Licensed under the Apache License 2.0 (the "License").  You may not use
+ * this file except in compliance with the License.  You can obtain a copy
+ * in the file LICENSE in the source distribution or at
+ * https://www.openssl.org/source/license.html
+ */
+
+/*
+ * DSA low level APIs are deprecated for public use, but still ok for
+ * internal use.
+ */
+#include "internal/deprecated.h"
+
+#include <openssl/obj_mac.h>
+#include "internal/packet.h"
+#include "prov/der_dsa.h"
+
+int ossl_DER_w_algorithmIdentifier_DSA(WPACKET *pkt, int tag, DSA *dsa)
+{
+    return ossl_DER_w_begin_sequence(pkt, tag)
+        /* No parameters (yet?) */
+        && ossl_DER_w_precompiled(pkt, -1, ossl_der_oid_id_dsa,
+                                  sizeof(ossl_der_oid_id_dsa))
+        && ossl_DER_w_end_sequence(pkt, tag);
+}