/* ==================================================================== * Copyright (c) 2002-2006 The OpenSSL Project. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in * the documentation and/or other materials provided with the * distribution. * * 3. All advertising materials mentioning features or use of this * software must display the following acknowledgment: * "This product includes software developed by the OpenSSL Project * for use in the OpenSSL Toolkit. (http://www.openssl.org/)" * * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to * endorse or promote products derived from this software without * prior written permission. For written permission, please contact * [email protected]. * * 5. Products derived from this software may not be called "OpenSSL" * nor may "OpenSSL" appear in their names without prior written * permission of the OpenSSL Project. * * 6. Redistributions of any form whatsoever must retain the following * acknowledgment: * "This product includes software developed by the OpenSSL Project * for use in the OpenSSL Toolkit (http://www.openssl.org/)" * * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED * OF THE POSSIBILITY OF SUCH DAMAGE. * ==================================================================== */ #include <openssl/aes.h> #include <assert.h> #include "internal.h" #include "../modes/internal.h" // Be aware that different sets of AES functions use incompatible key // representations, varying in format of the key schedule, the |AES_KEY.rounds| // value, or both. Therefore they cannot mix. Also, on AArch64, the plain-C // code, above, is incompatible with the |aes_hw_*| functions. void AES_encrypt(const uint8_t *in, uint8_t *out, const AES_KEY *key) { … } void AES_decrypt(const uint8_t *in, uint8_t *out, const AES_KEY *key) { … } int AES_set_encrypt_key(const uint8_t *key, unsigned bits, AES_KEY *aeskey) { … } int AES_set_decrypt_key(const uint8_t *key, unsigned bits, AES_KEY *aeskey) { … } #if defined(HWAES) && (defined(OPENSSL_X86) || defined(OPENSSL_X86_64)) // On x86 and x86_64, |aes_hw_set_decrypt_key|, we implement // |aes_hw_encrypt_key_to_decrypt_key| in assembly and rely on C code to combine // the operations. int aes_hw_set_decrypt_key(const uint8_t *user_key, int bits, AES_KEY *key) { … } int aes_hw_set_encrypt_key(const uint8_t *user_key, int bits, AES_KEY *key) { … } #endif
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