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-rw-r--r--lib/crypto/c_src/cmac.h34
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diff --git a/lib/crypto/c_src/cmac.h b/lib/crypto/c_src/cmac.h
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+/*
+ * %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_CMAC_H__
+#define E_CMAC_H__ 1
+
+#include "common.h"
+
+#if defined(HAVE_CMAC) && !defined(HAVE_EVP_PKEY_new_CMAC_key)
+
+int cmac_low_level(ErlNifEnv* env,
+ ErlNifBinary key_bin, const EVP_CIPHER* cipher, ErlNifBinary text,
+ ErlNifBinary *ret_bin, int *ret_bin_alloc, ERL_NIF_TERM *return_term);
+
+#endif
+
+#endif /* E_CMAC_H__ */