poly1305: make internal symbols internal

Make low-level poly1305 functions that were marked as "internal" in
public header file really internal. Change their prefix from nettle to
_nettle.

Signed-off-by: Dmitry Baryshkov <dbaryshkov@gmail.com>

1 files changed, 66 insertions, 0 deletions

diff --git a/poly1305-internal.h b/poly1305-internal.h
new file mode 100644
index 00000000..edb80f7f
--- /dev/null
+++ b/poly1305-internal.h
@@ -0,0 +1,66 @@
+/* poly1305.h
+
+   Poly1305 message authentication code.
+
+   Copyright (C) 2013 Nikos Mavrogiannopoulos
+   Copyright (C) 2013, 2014 Niels Möller
+
+   This file is part of GNU Nettle.
+
+   GNU Nettle is free software: you can redistribute it and/or
+   modify it under the terms of either:
+
+     * the GNU Lesser General Public License as published by the Free
+       Software Foundation; either version 3 of the License, or (at your
+       option) any later version.
+
+   or
+
+     * the GNU General Public License as published by the Free
+       Software Foundation; either version 2 of the License, or (at your
+       option) any later version.
+
+   or both in parallel, as here.
+
+   GNU Nettle is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   General Public License for more details.
+
+   You should have received copies of the GNU General Public License and
+   the GNU Lesser General Public License along with this program.  If
+   not, see http://www.gnu.org/licenses/.
+*/
+
+#ifndef NETTLE_POLY1305_INTERNAL_H_INCLUDED
+#define NETTLE_POLY1305_INTERNAL_H_INCLUDED
+
+#include "aes.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* Name mangling */
+#define _poly1305_set_key _nettle_poly1305_set_key
+#define _poly1305_digest _nettle_poly1305_digest
+#define _poly1305_block _nettle_poly1305_block
+
+/* Low level functions/macros for the poly1305 construction. */
+
+#define POLY1305_DIGEST_SIZE 16
+#define POLY1305_KEY_SIZE 16
+
+/* Low-level internal interface. */
+void _poly1305_set_key(struct poly1305_ctx *ctx, const uint8_t key[POLY1305_KEY_SIZE]);
+/* Extracts digest, and adds it to s, the encrypted nonce. */
+void _poly1305_digest (struct poly1305_ctx *ctx, union nettle_block16 *s);
+/* Internal function. Process one block. */
+void _poly1305_block (struct poly1305_ctx *ctx, const uint8_t *m,
+		      unsigned high);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* NETTLE_POLY1305_INTERNAL_H_INCLUDED */