Gilles Peskine | e59236f | 2018-01-27 23:32:46 +0100 | [diff] [blame] | 1 | /** |
| 2 | * \file psa/crypto_extra.h |
| 3 | * |
| 4 | * \brief PSA cryptography module: Mbed TLS vendor extensions |
Gilles Peskine | 07c91f5 | 2018-06-28 18:02:53 +0200 | [diff] [blame] | 5 | * |
| 6 | * \note This file may not be included directly. Applications must |
| 7 | * include psa/crypto.h. |
| 8 | * |
| 9 | * This file is reserved for vendor-specific definitions. |
Gilles Peskine | e59236f | 2018-01-27 23:32:46 +0100 | [diff] [blame] | 10 | */ |
| 11 | /* |
| 12 | * Copyright (C) 2018, ARM Limited, All Rights Reserved |
| 13 | * SPDX-License-Identifier: Apache-2.0 |
| 14 | * |
| 15 | * Licensed under the Apache License, Version 2.0 (the "License"); you may |
| 16 | * not use this file except in compliance with the License. |
| 17 | * You may obtain a copy of the License at |
| 18 | * |
| 19 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 20 | * |
| 21 | * Unless required by applicable law or agreed to in writing, software |
| 22 | * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT |
| 23 | * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 24 | * See the License for the specific language governing permissions and |
| 25 | * limitations under the License. |
| 26 | * |
| 27 | * This file is part of mbed TLS (https://tls.mbed.org) |
| 28 | */ |
| 29 | |
| 30 | #ifndef PSA_CRYPTO_EXTRA_H |
| 31 | #define PSA_CRYPTO_EXTRA_H |
| 32 | |
| 33 | #ifdef __cplusplus |
| 34 | extern "C" { |
| 35 | #endif |
| 36 | |
Netanel Gonen | 2bcd312 | 2018-11-19 11:53:02 +0200 | [diff] [blame] | 37 | /* UID for secure storage seed */ |
| 38 | #define MBED_RANDOM_SEED_ITS_UID 0xFFFFFF52 |
| 39 | |
Gilles Peskine | e59236f | 2018-01-27 23:32:46 +0100 | [diff] [blame] | 40 | /** |
| 41 | * \brief Library deinitialization. |
| 42 | * |
| 43 | * This function clears all data associated with the PSA layer, |
| 44 | * including the whole key store. |
| 45 | * |
| 46 | * This is an Mbed TLS extension. |
| 47 | */ |
| 48 | void mbedtls_psa_crypto_free( void ); |
| 49 | |
Netanel Gonen | 2bcd312 | 2018-11-19 11:53:02 +0200 | [diff] [blame] | 50 | |
| 51 | #if ( defined(MBEDTLS_ENTROPY_NV_SEED) && defined(MBEDTLS_PSA_HAS_ITS_IO) ) |
| 52 | /** |
| 53 | * \brief Inject initial entropy seed into persistent storage for random capabilities. |
| 54 | * |
| 55 | * \warning This function **can** fail! Callers MUST check the return status. |
| 56 | * |
| 57 | * \note To use this function both mbedtls_nv_seed_read and mbedtls_nv_seed_write |
| 58 | * must be defined. |
| 59 | * |
| 60 | * \param seed[in] Buffer storing the seed value to inject. |
| 61 | * \param seed_size[in] Size of the \p seed buffer. The minimum size of the seed is MBEDTLS_ENTROPY_MIN_PLATFORM |
| 62 | * |
| 63 | * \retval #PSA_SUCCESS |
| 64 | * \retval #PSA_ERROR_INVALID_ARGUMENT |
| 65 | * \retval #PSA_ERROR_STORAGE_FAILURE |
| 66 | * \retval #PSA_ERROR_NOT_PERMITTED |
| 67 | * \retval #PSA_ERROR_BAD_STATE |
| 68 | */ |
| 69 | psa_status_t mbedtls_psa_inject_entropy(const unsigned char *seed, |
| 70 | size_t seed_size); |
| 71 | |
| 72 | #endif |
| 73 | |
Gilles Peskine | e59236f | 2018-01-27 23:32:46 +0100 | [diff] [blame] | 74 | #ifdef __cplusplus |
| 75 | } |
| 76 | #endif |
| 77 | |
| 78 | #endif /* PSA_CRYPTO_EXTRA_H */ |