1 /** 2 * \file padlock.h 3 * 4 * \brief VIA PadLock ACE for HW encryption/decryption supported by some 5 * processors 6 * 7 * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved 8 * SPDX-License-Identifier: Apache-2.0 9 * 10 * Licensed under the Apache License, Version 2.0 (the "License"); you may 11 * not use this file except in compliance with the License. 12 * You may obtain a copy of the License at 13 * 14 * http://www.apache.org/licenses/LICENSE-2.0 15 * 16 * Unless required by applicable law or agreed to in writing, software 17 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT 18 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 19 * See the License for the specific language governing permissions and 20 * limitations under the License. 21 * 22 * This file is part of mbed TLS (https://tls.mbed.org) 23 */ 24 #ifndef MBEDTLS_PADLOCK_H 25 #define MBEDTLS_PADLOCK_H 26 27 #include "aes.h" 28 29 #define MBEDTLS_ERR_PADLOCK_DATA_MISALIGNED -0x0030 /**< Input data should be aligned. */ 30 31 #if defined(__has_feature) 32 #if __has_feature(address_sanitizer) 33 #define MBEDTLS_HAVE_ASAN 34 #endif 35 #endif 36 37 /* Some versions of ASan result in errors about not enough registers */ 38 #if defined(MBEDTLS_HAVE_ASM) && defined(__GNUC__) && defined(__i386__) && \ 39 !defined(MBEDTLS_HAVE_ASAN) 40 41 #ifndef MBEDTLS_HAVE_X86 42 #define MBEDTLS_HAVE_X86 43 #endif 44 45 #include <stdint.h> 46 47 #define MBEDTLS_PADLOCK_RNG 0x000C 48 #define MBEDTLS_PADLOCK_ACE 0x00C0 49 #define MBEDTLS_PADLOCK_PHE 0x0C00 50 #define MBEDTLS_PADLOCK_PMM 0x3000 51 52 #define MBEDTLS_PADLOCK_ALIGN16(x) (uint32_t *) (16 + ((int32_t) x & ~15)) 53 54 #ifdef __cplusplus 55 extern "C" { 56 #endif 57 58 /** 59 * \brief PadLock detection routine 60 * 61 * \param feature The feature to detect 62 * 63 * \return 1 if CPU has support for the feature, 0 otherwise 64 */ 65 int mbedtls_padlock_has_support( int feature ); 66 67 /** 68 * \brief PadLock AES-ECB block en(de)cryption 69 * 70 * \param ctx AES context 71 * \param mode MBEDTLS_AES_ENCRYPT or MBEDTLS_AES_DECRYPT 72 * \param input 16-byte input block 73 * \param output 16-byte output block 74 * 75 * \return 0 if success, 1 if operation failed 76 */ 77 int mbedtls_padlock_xcryptecb( mbedtls_aes_context *ctx, 78 int mode, 79 const unsigned char input[16], 80 unsigned char output[16] ); 81 82 /** 83 * \brief PadLock AES-CBC buffer en(de)cryption 84 * 85 * \param ctx AES context 86 * \param mode MBEDTLS_AES_ENCRYPT or MBEDTLS_AES_DECRYPT 87 * \param length length of the input data 88 * \param iv initialization vector (updated after use) 89 * \param input buffer holding the input data 90 * \param output buffer holding the output data 91 * 92 * \return 0 if success, 1 if operation failed 93 */ 94 int mbedtls_padlock_xcryptcbc( mbedtls_aes_context *ctx, 95 int mode, 96 size_t length, 97 unsigned char iv[16], 98 const unsigned char *input, 99 unsigned char *output ); 100 101 #ifdef __cplusplus 102 } 103 #endif 104 105 #endif /* HAVE_X86 */ 106 107 #endif /* padlock.h */ 108