/* $NetBSD: aes.c,v 1.3.4.1 2024/02/29 12:34:58 martin Exp $ */ /* * 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 #include #include #include #include #include #include void isc_aes128_crypt(const unsigned char *key, const unsigned char *in, unsigned char *out) { 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) { 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) { 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); }