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mirror of https://gitlab.isc.org/isc-projects/bind9 synced 2025-08-24 19:18:50 +00:00
bind/lib/isc/aes.c
Ondřej Surý 58bd26b6cf Update the copyright information in all files in the repository
This commit converts the license handling to adhere to the REUSE
specification.  It specifically:

1. Adds used licnses to LICENSES/ directory

2. Add "isc" template for adding the copyright boilerplate

3. Changes all source files to include copyright and SPDX license
   header, this includes all the C sources, documentation, zone files,
   configuration files.  There are notes in the doc/dev/copyrights file
   on how to add correct headers to the new files.

4. Handle the rest that can't be modified via .reuse/dep5 file.  The
   binary (or otherwise unmodifiable) files could have license places
   next to them in <foo>.license file, but this would lead to cluttered
   repository and most of the files handled in the .reuse/dep5 file are
   system test files.
2022-01-11 09:05:02 +01:00

90 lines
2.8 KiB
C

/*
* Copyright (C) Internet Systems Consortium, Inc. ("ISC")
*
* SPDX-License-Identifier: MPL-2.0
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, you can obtain one at https://mozilla.org/MPL/2.0/.
*
* See the COPYRIGHT file distributed with this work for additional
* information regarding copyright ownership.
*/
/*! \file isc/aes.c */
#include <openssl/evp.h>
#include <openssl/opensslv.h>
#include <isc/aes.h>
#include <isc/assertions.h>
#include <isc/string.h>
#include <isc/types.h>
#include <isc/util.h>
#if OPENSSL_VERSION_NUMBER < 0x10100000L || defined(LIBRESSL_VERSION_NUMBER)
#define EVP_CIPHER_CTX_new() &(_context), EVP_CIPHER_CTX_init(&_context)
#define EVP_CIPHER_CTX_free(c) RUNTIME_CHECK(EVP_CIPHER_CTX_cleanup(c) == 1)
#endif /* if OPENSSL_VERSION_NUMBER < 0x10100000L || \
* defined(LIBRESSL_VERSION_NUMBER) */
void
isc_aes128_crypt(const unsigned char *key, const unsigned char *in,
unsigned char *out) {
#if OPENSSL_VERSION_NUMBER < 0x10100000L || defined(LIBRESSL_VERSION_NUMBER)
EVP_CIPHER_CTX _context;
#endif /* if OPENSSL_VERSION_NUMBER < 0x10100000L || \
* defined(LIBRESSL_VERSION_NUMBER) */
EVP_CIPHER_CTX *c;
int len;
c = EVP_CIPHER_CTX_new();
RUNTIME_CHECK(c != NULL);
RUNTIME_CHECK(EVP_EncryptInit(c, EVP_aes_128_ecb(), key, NULL) == 1);
EVP_CIPHER_CTX_set_padding(c, 0);
RUNTIME_CHECK(
EVP_EncryptUpdate(c, out, &len, in, ISC_AES_BLOCK_LENGTH) == 1);
RUNTIME_CHECK(len == ISC_AES_BLOCK_LENGTH);
EVP_CIPHER_CTX_free(c);
}
void
isc_aes192_crypt(const unsigned char *key, const unsigned char *in,
unsigned char *out) {
#if OPENSSL_VERSION_NUMBER < 0x10100000L || defined(LIBRESSL_VERSION_NUMBER)
EVP_CIPHER_CTX _context;
#endif /* if OPENSSL_VERSION_NUMBER < 0x10100000L || \
* defined(LIBRESSL_VERSION_NUMBER) */
EVP_CIPHER_CTX *c;
int len;
c = EVP_CIPHER_CTX_new();
RUNTIME_CHECK(c != NULL);
RUNTIME_CHECK(EVP_EncryptInit(c, EVP_aes_192_ecb(), key, NULL) == 1);
EVP_CIPHER_CTX_set_padding(c, 0);
RUNTIME_CHECK(
EVP_EncryptUpdate(c, out, &len, in, ISC_AES_BLOCK_LENGTH) == 1);
RUNTIME_CHECK(len == ISC_AES_BLOCK_LENGTH);
EVP_CIPHER_CTX_free(c);
}
void
isc_aes256_crypt(const unsigned char *key, const unsigned char *in,
unsigned char *out) {
#if OPENSSL_VERSION_NUMBER < 0x10100000L || defined(LIBRESSL_VERSION_NUMBER)
EVP_CIPHER_CTX _context;
#endif /* if OPENSSL_VERSION_NUMBER < 0x10100000L || \
* defined(LIBRESSL_VERSION_NUMBER) */
EVP_CIPHER_CTX *c;
int len;
c = EVP_CIPHER_CTX_new();
RUNTIME_CHECK(c != NULL);
RUNTIME_CHECK(EVP_EncryptInit(c, EVP_aes_256_ecb(), key, NULL) == 1);
EVP_CIPHER_CTX_set_padding(c, 0);
RUNTIME_CHECK(
EVP_EncryptUpdate(c, out, &len, in, ISC_AES_BLOCK_LENGTH) == 1);
RUNTIME_CHECK(len == ISC_AES_BLOCK_LENGTH);
EVP_CIPHER_CTX_free(c);
}