--- /dev/null
+/* Copyright (c) 2016, Google Inc.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
+ * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
+ * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
+ * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */
+
+#ifndef OPENSSL_HEADER_POLY1305_INTERNAL_H
+#define OPENSSL_HEADER_POLY1305_INTERNAL_H
+
+#include <openssl/base.h>
+#include <openssl/poly1305.h>
+
+#if defined(__cplusplus)
+extern "C" {
+#endif
+
+#if defined(OPENSSL_ARM) && !defined(OPENSSL_NO_ASM) && !defined(OPENSSL_APPLE)
+#define OPENSSL_POLY1305_NEON
+
+void CRYPTO_poly1305_init_neon(poly1305_state *state, const uint8_t key[32]);
+
+void CRYPTO_poly1305_update_neon(poly1305_state *state, const uint8_t *in,
+ size_t in_len);
+
+void CRYPTO_poly1305_finish_neon(poly1305_state *state, uint8_t mac[16]);
+#endif
+
+
+#if defined(__cplusplus)
+} // extern C
+#endif
+
+#endif // OPENSSL_HEADER_POLY1305_INTERNAL_H