2G ems initial

include/nettle/pbkdf2.h

@@ -0,0 +1,85 @@
+/* pbkdf2.h
+
+   PKCS #5 password-based key derivation function PBKDF2, see RFC 2898.
+
+   Copyright (C) 2012 Simon Josefsson
+
+   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_PBKDF2_H_INCLUDED
+#define NETTLE_PBKDF2_H_INCLUDED
+
+#include "nettle-meta.h"
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+/* Namespace mangling */
+#define pbkdf2 nettle_pbkdf2
+#define pbkdf2_hmac_sha1 nettle_pbkdf2_hmac_sha1
+#define pbkdf2_hmac_sha256 nettle_pbkdf2_hmac_sha256
+
+void
+pbkdf2 (void *mac_ctx,
+	nettle_hash_update_func *update,
+	nettle_hash_digest_func *digest,
+	size_t digest_size, unsigned iterations,
+	size_t salt_length, const uint8_t *salt,
+	size_t length, uint8_t *dst);
+
+#define PBKDF2(ctx, update, digest, digest_size,			\
+	       iterations, salt_length, salt, length, dst)		\
+  (0 ? ((update)((ctx), 0, (uint8_t *) 0),				\
+	(digest)((ctx), 0, (uint8_t *) 0))				\
+   : pbkdf2 ((ctx),							\
+	     (nettle_hash_update_func *)(update),			\
+	     (nettle_hash_digest_func *)(digest),			\
+	     (digest_size), (iterations),				\
+	     (salt_length), (salt), (length), (dst)))
+
+/* PBKDF2 with specific PRFs. */
+
+void
+pbkdf2_hmac_sha1 (size_t key_length, const uint8_t *key,
+		  unsigned iterations,
+		  size_t salt_length, const uint8_t *salt,
+		  size_t length, uint8_t *dst);
+
+void
+pbkdf2_hmac_sha256 (size_t key_length, const uint8_t *key,
+		    unsigned iterations,
+		    size_t salt_length, const uint8_t *salt,
+		    size_t length, uint8_t *dst);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* NETTLE_PBKDF2_H_INCLUDED */