1 files changed, 39 insertions, 0 deletions
diff --git a/lib/crypto/c_src/hmac.h b/lib/crypto/c_src/hmac.h
new file mode 100644
index 0000000000..f5805e13e5
--- /dev/null
+++ b/lib/crypto/c_src/hmac.h
@@ -0,0 +1,39 @@
+/*
+ * %CopyrightBegin%
+ *
+ * Copyright Ericsson AB 2010-2018. All Rights Reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ * %CopyrightEnd%
+ */
+
+#ifndef E_HMAC_H__
+#define E_HMAC_H__ 1
+
+#ifndef HAS_EVP_PKEY_CTX
+
+#include "common.h"
+
+int init_hmac_ctx(ErlNifEnv *env);
+
+ERL_NIF_TERM hmac_init_nif(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]);
+ERL_NIF_TERM hmac_update_nif(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]);
+ERL_NIF_TERM hmac_final_nif(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]);
+
+int hmac_low_level(ErlNifEnv* env, const EVP_MD *md,
+                   ErlNifBinary key_bin, ErlNifBinary text,
+                   ErlNifBinary *ret_bin, int *ret_bin_alloc, ERL_NIF_TERM *return_term);
+#endif
+
+#endif /* E_HMAC_H__ */