Files
bind9/lib/isc/aes.c
Ondřej Surý c931d8e417 Merge branch '46-just-use-clang-format-to-reformat-sources' into 'master'
Reformat source code with clang-format

Closes #46

See merge request isc-projects/bind9!2156

(cherry picked from commit 7099e79a9b)

4c3b063e Import Linux kernel .clang-format with small modifications
f50b1e06 Use clang-format to reformat the source files
11341c76 Update the definition files for Windows
df6c1f76 Remove tkey_test (which is no-op anyway)
2020-02-12 14:51:18 +00:00

88 lines
2.5 KiB
C

/*
* Copyright (C) Internet Systems Consortium, Inc. ("ISC")
*
* 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 http://mozilla.org/MPL/2.0/.
*
* See the COPYRIGHT file distributed with this work for additional
* information regarding copyright ownership.
*/
/*! \file isc/aes.c */
#include <isc/aes.h>
#include <isc/assertions.h>
#include <isc/platform.h>
#include <isc/string.h>
#include <isc/types.h>
#include <isc/util.h>
#include <openssl/evp.h>
#include <openssl/opensslv.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
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
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
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
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);
}