Nordic stack and drivers for the mbed BLE API
Fork of nRF51822 by
TARGET_MCU_NRF51822/sdk/source/drivers_nrf/hal/nrf_ecb.c@639:4794dfdc59c0, 2017-11-09 (annotated)
- Committer:
- amithy
- Date:
- Thu Nov 09 22:13:54 2017 +0000
- Revision:
- 639:4794dfdc59c0
- Parent:
- 638:c90ae1400bf2
for testing export
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
Vincent Coubard |
638:c90ae1400bf2 | 1 | /* |
Vincent Coubard |
638:c90ae1400bf2 | 2 | * Copyright (c) Nordic Semiconductor ASA |
Vincent Coubard |
638:c90ae1400bf2 | 3 | * All rights reserved. |
Vincent Coubard |
638:c90ae1400bf2 | 4 | * |
Vincent Coubard |
638:c90ae1400bf2 | 5 | * Redistribution and use in source and binary forms, with or without modification, |
Vincent Coubard |
638:c90ae1400bf2 | 6 | * are permitted provided that the following conditions are met: |
Vincent Coubard |
638:c90ae1400bf2 | 7 | * |
Vincent Coubard |
638:c90ae1400bf2 | 8 | * 1. Redistributions of source code must retain the above copyright notice, this |
Vincent Coubard |
638:c90ae1400bf2 | 9 | * list of conditions and the following disclaimer. |
Vincent Coubard |
638:c90ae1400bf2 | 10 | * |
Vincent Coubard |
638:c90ae1400bf2 | 11 | * 2. Redistributions in binary form must reproduce the above copyright notice, this |
Vincent Coubard |
638:c90ae1400bf2 | 12 | * list of conditions and the following disclaimer in the documentation and/or |
Vincent Coubard |
638:c90ae1400bf2 | 13 | * other materials provided with the distribution. |
Vincent Coubard |
638:c90ae1400bf2 | 14 | * |
Vincent Coubard |
638:c90ae1400bf2 | 15 | * 3. Neither the name of Nordic Semiconductor ASA nor the names of other |
Vincent Coubard |
638:c90ae1400bf2 | 16 | * contributors to this software may be used to endorse or promote products |
Vincent Coubard |
638:c90ae1400bf2 | 17 | * derived from this software without specific prior written permission. |
Vincent Coubard |
638:c90ae1400bf2 | 18 | * |
Vincent Coubard |
638:c90ae1400bf2 | 19 | * |
Vincent Coubard |
638:c90ae1400bf2 | 20 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND |
Vincent Coubard |
638:c90ae1400bf2 | 21 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED |
Vincent Coubard |
638:c90ae1400bf2 | 22 | * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
Vincent Coubard |
638:c90ae1400bf2 | 23 | * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR |
Vincent Coubard |
638:c90ae1400bf2 | 24 | * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES |
Vincent Coubard |
638:c90ae1400bf2 | 25 | * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
Vincent Coubard |
638:c90ae1400bf2 | 26 | * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON |
Vincent Coubard |
638:c90ae1400bf2 | 27 | * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
Vincent Coubard |
638:c90ae1400bf2 | 28 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS |
Vincent Coubard |
638:c90ae1400bf2 | 29 | * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
Vincent Coubard |
638:c90ae1400bf2 | 30 | * |
Vincent Coubard |
638:c90ae1400bf2 | 31 | */ |
Vincent Coubard |
638:c90ae1400bf2 | 32 | |
Vincent Coubard |
638:c90ae1400bf2 | 33 | /** |
Vincent Coubard |
638:c90ae1400bf2 | 34 | * @file |
Vincent Coubard |
638:c90ae1400bf2 | 35 | * @brief Implementation of AES ECB driver |
Vincent Coubard |
638:c90ae1400bf2 | 36 | */ |
Vincent Coubard |
638:c90ae1400bf2 | 37 | |
Vincent Coubard |
638:c90ae1400bf2 | 38 | |
Vincent Coubard |
638:c90ae1400bf2 | 39 | //lint -e438 |
Vincent Coubard |
638:c90ae1400bf2 | 40 | |
Vincent Coubard |
638:c90ae1400bf2 | 41 | #include <stdlib.h> |
Vincent Coubard |
638:c90ae1400bf2 | 42 | #include <stdbool.h> |
Vincent Coubard |
638:c90ae1400bf2 | 43 | #include <string.h> |
Vincent Coubard |
638:c90ae1400bf2 | 44 | #include "nrf.h" |
Vincent Coubard |
638:c90ae1400bf2 | 45 | #include "nrf_ecb.h" |
Vincent Coubard |
638:c90ae1400bf2 | 46 | |
Vincent Coubard |
638:c90ae1400bf2 | 47 | static uint8_t ecb_data[48]; ///< ECB data structure for RNG peripheral to access. |
Vincent Coubard |
638:c90ae1400bf2 | 48 | static uint8_t* ecb_key; ///< Key: Starts at ecb_data |
Vincent Coubard |
638:c90ae1400bf2 | 49 | static uint8_t* ecb_cleartext; ///< Cleartext: Starts at ecb_data + 16 bytes. |
Vincent Coubard |
638:c90ae1400bf2 | 50 | static uint8_t* ecb_ciphertext; ///< Ciphertext: Starts at ecb_data + 32 bytes. |
Vincent Coubard |
638:c90ae1400bf2 | 51 | |
Vincent Coubard |
638:c90ae1400bf2 | 52 | bool nrf_ecb_init(void) |
Vincent Coubard |
638:c90ae1400bf2 | 53 | { |
Vincent Coubard |
638:c90ae1400bf2 | 54 | ecb_key = ecb_data; |
Vincent Coubard |
638:c90ae1400bf2 | 55 | ecb_cleartext = ecb_data + 16; |
Vincent Coubard |
638:c90ae1400bf2 | 56 | ecb_ciphertext = ecb_data + 32; |
Vincent Coubard |
638:c90ae1400bf2 | 57 | |
Vincent Coubard |
638:c90ae1400bf2 | 58 | NRF_ECB->ECBDATAPTR = (uint32_t)ecb_data; |
Vincent Coubard |
638:c90ae1400bf2 | 59 | return true; |
Vincent Coubard |
638:c90ae1400bf2 | 60 | } |
Vincent Coubard |
638:c90ae1400bf2 | 61 | |
Vincent Coubard |
638:c90ae1400bf2 | 62 | |
Vincent Coubard |
638:c90ae1400bf2 | 63 | bool nrf_ecb_crypt(uint8_t * dest_buf, const uint8_t * src_buf) |
Vincent Coubard |
638:c90ae1400bf2 | 64 | { |
Vincent Coubard |
638:c90ae1400bf2 | 65 | uint32_t counter = 0x1000000; |
Vincent Coubard |
638:c90ae1400bf2 | 66 | if(src_buf != ecb_cleartext) |
Vincent Coubard |
638:c90ae1400bf2 | 67 | { |
Vincent Coubard |
638:c90ae1400bf2 | 68 | memcpy(ecb_cleartext,src_buf,16); |
Vincent Coubard |
638:c90ae1400bf2 | 69 | } |
Vincent Coubard |
638:c90ae1400bf2 | 70 | NRF_ECB->EVENTS_ENDECB = 0; |
Vincent Coubard |
638:c90ae1400bf2 | 71 | NRF_ECB->TASKS_STARTECB = 1; |
Vincent Coubard |
638:c90ae1400bf2 | 72 | while(NRF_ECB->EVENTS_ENDECB == 0) |
Vincent Coubard |
638:c90ae1400bf2 | 73 | { |
Vincent Coubard |
638:c90ae1400bf2 | 74 | counter--; |
Vincent Coubard |
638:c90ae1400bf2 | 75 | if(counter == 0) |
Vincent Coubard |
638:c90ae1400bf2 | 76 | { |
Vincent Coubard |
638:c90ae1400bf2 | 77 | return false; |
Vincent Coubard |
638:c90ae1400bf2 | 78 | } |
Vincent Coubard |
638:c90ae1400bf2 | 79 | } |
Vincent Coubard |
638:c90ae1400bf2 | 80 | NRF_ECB->EVENTS_ENDECB = 0; |
Vincent Coubard |
638:c90ae1400bf2 | 81 | if(dest_buf != ecb_ciphertext) |
Vincent Coubard |
638:c90ae1400bf2 | 82 | { |
Vincent Coubard |
638:c90ae1400bf2 | 83 | memcpy(dest_buf,ecb_ciphertext,16); |
Vincent Coubard |
638:c90ae1400bf2 | 84 | } |
Vincent Coubard |
638:c90ae1400bf2 | 85 | return true; |
Vincent Coubard |
638:c90ae1400bf2 | 86 | } |
Vincent Coubard |
638:c90ae1400bf2 | 87 | |
Vincent Coubard |
638:c90ae1400bf2 | 88 | void nrf_ecb_set_key(const uint8_t * key) |
Vincent Coubard |
638:c90ae1400bf2 | 89 | { |
Vincent Coubard |
638:c90ae1400bf2 | 90 | memcpy(ecb_key,key,16); |
Vincent Coubard |
638:c90ae1400bf2 | 91 | } |
Vincent Coubard |
638:c90ae1400bf2 | 92 | |
Vincent Coubard |
638:c90ae1400bf2 | 93 |