/* salsa20-crypt.c
-
- The Salsa20 stream cipher.
-
- 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/.
-*/
+ *
+ * The Salsa20 stream cipher.
+ */
+
+/* nettle, low-level cryptographics library
+ *
+ * Copyright (C) 2012 Simon Josefsson
+ *
+ * The nettle library is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation; either version 2.1 of the License, or (at your
+ * option) any later version.
+ *
+ * The nettle library 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 Lesser General Public
+ * License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with the nettle library; see the file COPYING.LIB. If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
+ * MA 02111-1301, USA.
+ */
/* Based on:
salsa20-ref.c version 20051118
void
salsa20_crypt(struct salsa20_ctx *ctx,
- size_t length,
+ unsigned length,
uint8_t *c,
const uint8_t *m)
{
if (length <= SALSA20_BLOCK_SIZE)
{
- memxor3 (c, m, x, length);
+ memxor3 (c, m, (uint8_t *) x, length);
return;
}
- memxor3 (c, m, x, SALSA20_BLOCK_SIZE);
+ memxor3 (c, m, (uint8_t *) x, SALSA20_BLOCK_SIZE);
length -= SALSA20_BLOCK_SIZE;
c += SALSA20_BLOCK_SIZE;