9465cca0f5
Code taken from https://git.lysator.liu.se/nettle/nettle and placed in its own subproject.
66 lines
1.9 KiB
C
66 lines
1.9 KiB
C
// SPDX-FileCopyrightText: 2002, 2013 Niels Möller
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// SPDX-License-Identifier: LGPL-3.0-only
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/* aes-encrypt.c
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Encryption function for the aes/rijndael block cipher.
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Copyright (C) 2002, 2013 Niels Möller
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This file is part of GNU Nettle.
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GNU Nettle is free software: you can redistribute it and/or
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modify it under the terms of either:
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* the GNU Lesser General Public License as published by the Free
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Software Foundation; either version 3 of the License, or (at your
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option) any later version.
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or
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* the GNU General Public License as published by the Free
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Software Foundation; either version 2 of the License, or (at your
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option) any later version.
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or both in parallel, as here.
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GNU Nettle is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received copies of the GNU General Public License and
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the GNU Lesser General Public License along with this program. If
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not, see http://www.gnu.org/licenses/.
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*/
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#if HAVE_CONFIG_H
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# include "config.h"
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#endif
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#include <stdlib.h>
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#include "aes-internal.h"
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/* The main point on this function is to help the assembler
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implementations of _nettle_aes_encrypt to get the table pointer.
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For PIC code, the details can be complex and system dependent. */
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void
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aes_encrypt(const struct aes_ctx *ctx,
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size_t length, uint8_t *dst,
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const uint8_t *src)
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{
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switch (ctx->key_size)
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{
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default: abort();
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case AES128_KEY_SIZE:
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aes128_encrypt(&ctx->u.ctx128, length, dst, src);
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break;
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case AES192_KEY_SIZE:
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aes192_encrypt(&ctx->u.ctx192, length, dst, src);
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break;
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case AES256_KEY_SIZE:
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aes256_encrypt(&ctx->u.ctx256, length, dst, src);
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break;
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}
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}
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