1 files changed, 52 insertions, 0 deletions
diff --git a/providers/implementations/digests/mdc2_prov.c b/providers/implementations/digests/mdc2_prov.c
new file mode 100644
index 0000000000..f0ae8b3742
--- /dev/null
+++ b/providers/implementations/digests/mdc2_prov.c
@@ -0,0 +1,52 @@
+/*
+ * Copyright 2019 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
+ */
+
+#include <openssl/crypto.h>
+#include <openssl/params.h>
+#include <openssl/mdc2.h>
+#include <openssl/core_names.h>
+#include <openssl/err.h>
+#include "prov/digestcommon.h"
+#include "internal/provider_algs.h"
+#include "internal/providercommonerr.h"
+
+static OSSL_OP_digest_set_ctx_params_fn mdc2_set_ctx_params;
+static OSSL_OP_digest_settable_ctx_params_fn mdc2_settable_ctx_params;
+
+static const OSSL_PARAM known_mdc2_settable_ctx_params[] = {
+    OSSL_PARAM_uint(OSSL_DIGEST_PARAM_PAD_TYPE, NULL),
+    OSSL_PARAM_END
+};
+
+static const OSSL_PARAM *mdc2_settable_ctx_params(void)
+{
+    return known_mdc2_settable_ctx_params;
+}
+
+static int mdc2_set_ctx_params(void *vctx, const OSSL_PARAM params[])
+{
+    const OSSL_PARAM *p;
+    MDC2_CTX *ctx = (MDC2_CTX *)vctx;
+
+    if (ctx != NULL && params != NULL) {
+        p = OSSL_PARAM_locate_const(params, OSSL_DIGEST_PARAM_PAD_TYPE);
+        if (p != NULL && !OSSL_PARAM_get_uint(p, &ctx->pad_type)) {
+            ERR_raise(ERR_LIB_PROV, PROV_R_FAILED_TO_GET_PARAMETER);
+            return 0;
+        }
+        return 1;
+    }
+    return 0; /* Null Parameter */
+}
+
+/* mdc2_functions */
+IMPLEMENT_digest_functions_with_settable_ctx(
+    mdc2, MDC2_CTX, MDC2_BLOCK, MDC2_DIGEST_LENGTH, 0,
+    MDC2_Init, MDC2_Update, MDC2_Final,
+    mdc2_settable_ctx_params, mdc2_set_ctx_params)