/** * \file padlock.h * * \brief VIA PadLock ACE for HW encryption/decryption supported by some * processors * * \warning These functions are only for internal use by other library * functions; you must not call them directly. */ /* * Copyright The Mbed TLS Contributors * SPDX-License-Identifier: Apache-2.0 * * Licensed under the Apache License, Version 2.0 (the "License"); you may * not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ #ifndef MBEDTLS_PADLOCK_H #define MBEDTLS_PADLOCK_H #if !defined(MBEDTLS_CONFIG_FILE) #include "mbedtls/config.h" #else #include MBEDTLS_CONFIG_FILE #endif #include "mbedtls/aes.h" #define MBEDTLS_ERR_PADLOCK_DATA_MISALIGNED -0x0030 /**< Input data should be aligned. */ #if defined(__has_feature) #if __has_feature(address_sanitizer) #define MBEDTLS_HAVE_ASAN #endif #endif /* Some versions of ASan result in errors about not enough registers */ #if defined(MBEDTLS_HAVE_ASM) && defined(__GNUC__) && defined(__i386__) && \ !defined(MBEDTLS_HAVE_ASAN) #ifndef MBEDTLS_HAVE_X86 #define MBEDTLS_HAVE_X86 #endif #include #define MBEDTLS_PADLOCK_RNG 0x000C #define MBEDTLS_PADLOCK_ACE 0x00C0 #define MBEDTLS_PADLOCK_PHE 0x0C00 #define MBEDTLS_PADLOCK_PMM 0x3000 #define MBEDTLS_PADLOCK_ALIGN16(x) (uint32_t *) (16 + ((int32_t) (x) & ~15)) #ifdef __cplusplus extern "C" { #endif /** * \brief Internal PadLock detection routine * * \note This function is only for internal use by other library * functions; you must not call it directly. * * \param feature The feature to detect * * \return non-zero if CPU has support for the feature, 0 otherwise */ int mbedtls_padlock_has_support( int feature ); /** * \brief Internal PadLock AES-ECB block en(de)cryption * * \note This function is only for internal use by other library * functions; you must not call it directly. * * \param ctx AES context * \param mode MBEDTLS_AES_ENCRYPT or MBEDTLS_AES_DECRYPT * \param input 16-byte input block * \param output 16-byte output block * * \return 0 if success, 1 if operation failed */ int mbedtls_padlock_xcryptecb( mbedtls_aes_context *ctx, int mode, const unsigned char input[16], unsigned char output[16] ); /** * \brief Internal PadLock AES-CBC buffer en(de)cryption * * \note This function is only for internal use by other library * functions; you must not call it directly. * * \param ctx AES context * \param mode MBEDTLS_AES_ENCRYPT or MBEDTLS_AES_DECRYPT * \param length length of the input data * \param iv initialization vector (updated after use) * \param input buffer holding the input data * \param output buffer holding the output data * * \return 0 if success, 1 if operation failed */ int mbedtls_padlock_xcryptcbc( mbedtls_aes_context *ctx, int mode, size_t length, unsigned char iv[16], const unsigned char *input, unsigned char *output ); #ifdef __cplusplus } #endif #endif /* HAVE_X86 */ #endif /* padlock.h */