/* aes-decrypt.c
+ *
+ * Decryption function for aes/rijndael block cipher.
+ */
- Decryption function for aes/rijndael block cipher.
-
- Copyright (C) 2002, 2013 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/.
-*/
+/* nettle, low-level cryptographics library
+ *
+ * Copyright (C) 2002 Niels Möller
+ *
+ * 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.
+ */
#if HAVE_CONFIG_H
# include "config.h"
void
aes_decrypt(const struct aes_ctx *ctx,
- size_t length, uint8_t *dst,
+ unsigned length, uint8_t *dst,
const uint8_t *src)
{
assert(!(length % AES_BLOCK_SIZE) );
- _aes_decrypt(ctx->rounds, ctx->keys, &_aes_decrypt_table,
- length, dst, src);
-}
-
-void
-aes128_decrypt(const struct aes128_ctx *ctx,
- size_t length, uint8_t *dst,
- const uint8_t *src)
-{
- assert(!(length % AES_BLOCK_SIZE) );
- _aes_decrypt(_AES128_ROUNDS, ctx->keys, &_aes_decrypt_table,
- length, dst, src);
-}
-
-void
-aes192_decrypt(const struct aes192_ctx *ctx,
- size_t length, uint8_t *dst,
- const uint8_t *src)
-{
- assert(!(length % AES_BLOCK_SIZE) );
- _aes_decrypt(_AES192_ROUNDS, ctx->keys, &_aes_decrypt_table,
- length, dst, src);
-}
-
-void
-aes256_decrypt(const struct aes256_ctx *ctx,
- size_t length, uint8_t *dst,
- const uint8_t *src)
-{
- assert(!(length % AES_BLOCK_SIZE) );
- _aes_decrypt(_AES256_ROUNDS, ctx->keys, &_aes_decrypt_table,
+ _aes_decrypt(ctx, &_aes_decrypt_table,
length, dst, src);
}