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aes-decrypt.c
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Niels Möller
Split aes-encrypt.c and aes-decrypt.c into one file per key size.
01 апр 2021, 08:30
01 апр 2021, 08:30
f4dc5f2
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/* aes-decrypt.c 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/. */ #if HAVE_CONFIG_H # include "config.h" #endif #include <stdlib.h> #include "aes-internal.h" void aes_decrypt(const struct aes_ctx *ctx, size_t length, uint8_t *dst, const uint8_t *src) { switch (ctx->key_size) { default: abort(); case AES128_KEY_SIZE: aes128_decrypt(&ctx->u.ctx128, length, dst, src); break; case AES192_KEY_SIZE: aes192_decrypt(&ctx->u.ctx192, length, dst, src); break; case AES256_KEY_SIZE: aes256_decrypt(&ctx->u.ctx256, length, dst, src); break; } }