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cccf98d172
- import GNUTLS headers - define wine's SONAME_LIBGNUTLS to a relevant value svn path=/trunk/; revision=63995
80 lines
2.3 KiB
C
80 lines
2.3 KiB
C
/* aes.h
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*
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* The aes/rijndael block cipher.
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*/
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/* nettle, low-level cryptographics library
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*
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* Copyright (C) 2001 Niels Möller
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*
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* The nettle library is free software; you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License as published by
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* the Free Software Foundation; either version 2.1 of the License, or (at your
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* option) any later version.
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*
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* The nettle library is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
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* License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with the nettle library; see the file COPYING.LIB. If not, write to
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* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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* MA 02111-1301, USA.
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*/
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#ifndef NETTLE_AES_H_INCLUDED
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#define NETTLE_AES_H_INCLUDED
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#include "nettle-types.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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/* Name mangling */
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#define aes_set_encrypt_key nettle_aes_set_encrypt_key
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#define aes_set_decrypt_key nettle_aes_set_decrypt_key
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#define aes_invert_key nettle_aes_invert_key
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#define aes_encrypt nettle_aes_encrypt
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#define aes_decrypt nettle_aes_decrypt
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#define AES_BLOCK_SIZE 16
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/* Variable key size between 128 and 256 bits. But the only valid
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* values are 16 (128 bits), 24 (192 bits) and 32 (256 bits). */
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#define AES_MIN_KEY_SIZE 16
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#define AES_MAX_KEY_SIZE 32
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#define AES_KEY_SIZE 32
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/* FIXME: Change to put nrounds first, to make it possible to use a
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truncated ctx struct, with less subkeys, for the shorter key
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sizes? */
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struct aes_ctx {
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uint32_t keys[60]; /* maximum size of key schedule */
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unsigned nrounds; /* number of rounds to use for our key size */
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};
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void
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aes_set_encrypt_key(struct aes_ctx *ctx,
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unsigned length, const uint8_t * key);
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void
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aes_set_decrypt_key(struct aes_ctx *ctx,
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unsigned length, const uint8_t * key);
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void
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aes_invert_key(struct aes_ctx *dst, const struct aes_ctx *src);
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void
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aes_encrypt(const struct aes_ctx *ctx,
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unsigned length, uint8_t * dst, const uint8_t * src);
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void
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aes_decrypt(const struct aes_ctx *ctx,
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unsigned length, uint8_t * dst, const uint8_t * src);
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#ifdef __cplusplus
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}
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#endif
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#endif /* NETTLE_AES_H_INCLUDED */
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