ST / stm-spirit1-rf-driver

Prototype RF driver for STM Sub-1 GHz RF expansion board based on the SPSGRF-868 module for STM32 Nucleo.

Prototype RF Driver for STM Sub-1 GHz RF Expansion Boards based on the SPSGRF-868 and SPSGRF-915 Modules for STM32 Nucleo

Currently supported boards:

Note, in order to use expansion board X-NUCLEO-IDS01A4 in mbed you need to perform the following HW modifications on the board:

  • Unmount resistor R4
  • Mount resistor R7

Furthermore, on some Nucleo development boards (e.g. the NUCLEO_F429ZI), in order to be able to use Ethernet together with these Sub-1 GHz RF expansion boards, you need to compile this driver with macro SPIRIT1_SPI_MOSI=PB_5 defined, while the development board typically requires some HW modification as e.g. described here!

This driver can be used together with the 6LoWPAN stack (a.k.a. Nanostack).

source/libs/spirit1/SPIRIT1_Library/Src/SPIRIT_Aes.c@67:93bec0baf1de, 2017-07-06 (annotated)

Committer:
Wolfgang Betz
Date:
Thu Jul 06 11:13:31 2017 +0200
Revision:
67:93bec0baf1de
Parent:
34:edda6a7238ec 
Clarify some comments

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Wolfgang Betz 67:93bec0baf1de 1 /**
Wolfgang Betz 67:93bec0baf1de 2 ******************************************************************************
Wolfgang Betz 67:93bec0baf1de 3 * @file SPIRIT_Aes.c
Wolfgang Betz 67:93bec0baf1de 4 * @author VMA division - AMS
Wolfgang Betz 67:93bec0baf1de 5 * @version 3.2.2
Wolfgang Betz 67:93bec0baf1de 6 * @date 08-July-2015
Wolfgang Betz 67:93bec0baf1de 7 * @brief Configuration and management of SPIRIT AES Engine.
Wolfgang Betz 67:93bec0baf1de 8 *
Wolfgang Betz 67:93bec0baf1de 9 * @attention
Wolfgang Betz 67:93bec0baf1de 10 *
Wolfgang Betz 67:93bec0baf1de 11 * <h2><center>&copy; COPYRIGHT(c) 2015 STMicroelectronics</center></h2>
Wolfgang Betz 67:93bec0baf1de 12 *
Wolfgang Betz 67:93bec0baf1de 13 * Redistribution and use in source and binary forms, with or without modification,
Wolfgang Betz 67:93bec0baf1de 14 * are permitted provided that the following conditions are met:
Wolfgang Betz 67:93bec0baf1de 15 * 1. Redistributions of source code must retain the above copyright notice,
Wolfgang Betz 67:93bec0baf1de 16 * this list of conditions and the following disclaimer.
Wolfgang Betz 67:93bec0baf1de 17 * 2. Redistributions in binary form must reproduce the above copyright notice,
Wolfgang Betz 67:93bec0baf1de 18 * this list of conditions and the following disclaimer in the documentation
Wolfgang Betz 67:93bec0baf1de 19 * and/or other materials provided with the distribution.
Wolfgang Betz 67:93bec0baf1de 20 * 3. Neither the name of STMicroelectronics nor the names of its contributors
Wolfgang Betz 67:93bec0baf1de 21 * may be used to endorse or promote products derived from this software
Wolfgang Betz 67:93bec0baf1de 22 * without specific prior written permission.
Wolfgang Betz 67:93bec0baf1de 23 *
Wolfgang Betz 67:93bec0baf1de 24 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
Wolfgang Betz 67:93bec0baf1de 25 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
Wolfgang Betz 67:93bec0baf1de 26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
Wolfgang Betz 67:93bec0baf1de 27 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
Wolfgang Betz 67:93bec0baf1de 28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
Wolfgang Betz 67:93bec0baf1de 29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
Wolfgang Betz 67:93bec0baf1de 30 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
Wolfgang Betz 67:93bec0baf1de 31 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
Wolfgang Betz 67:93bec0baf1de 32 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
Wolfgang Betz 67:93bec0baf1de 33 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
Wolfgang Betz 67:93bec0baf1de 34 *
Wolfgang Betz 67:93bec0baf1de 35 ******************************************************************************
Wolfgang Betz 67:93bec0baf1de 36 */
Wolfgang Betz 67:93bec0baf1de 37
Wolfgang Betz 67:93bec0baf1de 38
Wolfgang Betz 67:93bec0baf1de 39 /* Includes ------------------------------------------------------------------*/
Wolfgang Betz 67:93bec0baf1de 40 #include "SPIRIT_Aes.h"
Wolfgang Betz 67:93bec0baf1de 41 #include "MCU_Interface.h"
Wolfgang Betz 67:93bec0baf1de 42
Wolfgang Betz 67:93bec0baf1de 43
Wolfgang Betz 67:93bec0baf1de 44 /**
Wolfgang Betz 67:93bec0baf1de 45 * @addtogroup SPIRIT_Libraries
Wolfgang Betz 67:93bec0baf1de 46 * @{
Wolfgang Betz 67:93bec0baf1de 47 */
Wolfgang Betz 67:93bec0baf1de 48
Wolfgang Betz 67:93bec0baf1de 49
Wolfgang Betz 67:93bec0baf1de 50 /**
Wolfgang Betz 67:93bec0baf1de 51 * @addtogroup SPIRIT_Aes
Wolfgang Betz 67:93bec0baf1de 52 * @{
Wolfgang Betz 67:93bec0baf1de 53 */
Wolfgang Betz 67:93bec0baf1de 54
Wolfgang Betz 67:93bec0baf1de 55
Wolfgang Betz 67:93bec0baf1de 56 /**
Wolfgang Betz 67:93bec0baf1de 57 * @defgroup Aes_Private_TypesDefinitions AES Private Types Definitions
Wolfgang Betz 67:93bec0baf1de 58 * @{
Wolfgang Betz 67:93bec0baf1de 59 */
Wolfgang Betz 67:93bec0baf1de 60
Wolfgang Betz 67:93bec0baf1de 61 /**
Wolfgang Betz 67:93bec0baf1de 62 * @}
Wolfgang Betz 67:93bec0baf1de 63 */
Wolfgang Betz 67:93bec0baf1de 64
Wolfgang Betz 67:93bec0baf1de 65
Wolfgang Betz 67:93bec0baf1de 66 /**
Wolfgang Betz 67:93bec0baf1de 67 * @defgroup Aes_Private_Defines AES Private Defines
Wolfgang Betz 67:93bec0baf1de 68 * @{
Wolfgang Betz 67:93bec0baf1de 69 */
Wolfgang Betz 67:93bec0baf1de 70
Wolfgang Betz 67:93bec0baf1de 71 /**
Wolfgang Betz 67:93bec0baf1de 72 * @}
Wolfgang Betz 67:93bec0baf1de 73 */
Wolfgang Betz 67:93bec0baf1de 74
Wolfgang Betz 67:93bec0baf1de 75
Wolfgang Betz 67:93bec0baf1de 76 /**
Wolfgang Betz 67:93bec0baf1de 77 * @defgroup Aes_Private_Macros AES Private Macros
Wolfgang Betz 67:93bec0baf1de 78 * @{
Wolfgang Betz 67:93bec0baf1de 79 */
Wolfgang Betz 67:93bec0baf1de 80
Wolfgang Betz 67:93bec0baf1de 81 /**
Wolfgang Betz 67:93bec0baf1de 82 * @}
Wolfgang Betz 67:93bec0baf1de 83 */
Wolfgang Betz 67:93bec0baf1de 84
Wolfgang Betz 67:93bec0baf1de 85
Wolfgang Betz 67:93bec0baf1de 86 /**
Wolfgang Betz 67:93bec0baf1de 87 * @defgroup Aes_Private_Variables AES Private Variables
Wolfgang Betz 67:93bec0baf1de 88 * @{
Wolfgang Betz 67:93bec0baf1de 89 */
Wolfgang Betz 67:93bec0baf1de 90
Wolfgang Betz 67:93bec0baf1de 91 /**
Wolfgang Betz 67:93bec0baf1de 92 * @}
Wolfgang Betz 67:93bec0baf1de 93 */
Wolfgang Betz 67:93bec0baf1de 94
Wolfgang Betz 67:93bec0baf1de 95
Wolfgang Betz 67:93bec0baf1de 96 /**
Wolfgang Betz 67:93bec0baf1de 97 * @defgroup Aes_Private_FunctionPrototypes AES Private Function Prototypes
Wolfgang Betz 67:93bec0baf1de 98 * @{
Wolfgang Betz 67:93bec0baf1de 99 */
Wolfgang Betz 67:93bec0baf1de 100
Wolfgang Betz 67:93bec0baf1de 101 /**
Wolfgang Betz 67:93bec0baf1de 102 * @}
Wolfgang Betz 67:93bec0baf1de 103 */
Wolfgang Betz 67:93bec0baf1de 104
Wolfgang Betz 67:93bec0baf1de 105
Wolfgang Betz 67:93bec0baf1de 106 /**
Wolfgang Betz 67:93bec0baf1de 107 * @defgroup Aes_Private_Functions AES Private Functions
Wolfgang Betz 67:93bec0baf1de 108 * @{
Wolfgang Betz 67:93bec0baf1de 109 */
Wolfgang Betz 67:93bec0baf1de 110
Wolfgang Betz 67:93bec0baf1de 111
Wolfgang Betz 67:93bec0baf1de 112 /**
Wolfgang Betz 67:93bec0baf1de 113 * @brief Enables or Disables the AES engine.
Wolfgang Betz 67:93bec0baf1de 114 * @param xNewState new state for AES engine.
Wolfgang Betz 67:93bec0baf1de 115 * This parameter can be: S_ENABLE or S_DISABLE.
Wolfgang Betz 67:93bec0baf1de 116 * @retval None
Wolfgang Betz 67:93bec0baf1de 117 */
Wolfgang Betz 67:93bec0baf1de 118 void SpiritAesMode(SpiritFunctionalState xNewState)
Wolfgang Betz 67:93bec0baf1de 119 {
Wolfgang Betz 67:93bec0baf1de 120 uint8_t tempRegValue = 0x00;
Wolfgang Betz 67:93bec0baf1de 121
Wolfgang Betz 67:93bec0baf1de 122 /* Check the parameters */
Wolfgang Betz 67:93bec0baf1de 123 s_assert_param(IS_SPIRIT_FUNCTIONAL_STATE(xNewState));
Wolfgang Betz 67:93bec0baf1de 124
Wolfgang Betz 67:93bec0baf1de 125 /* Modifies the register value */
Wolfgang Betz 67:93bec0baf1de 126 g_xStatus = SpiritSpiReadRegisters(ANA_FUNC_CONF0_BASE, 1, &tempRegValue);
Wolfgang Betz 67:93bec0baf1de 127 if(xNewState == S_ENABLE)
Wolfgang Betz 67:93bec0baf1de 128 {
Wolfgang Betz 67:93bec0baf1de 129 tempRegValue |= AES_MASK;
Wolfgang Betz 67:93bec0baf1de 130 }
Wolfgang Betz 67:93bec0baf1de 131 else
Wolfgang Betz 67:93bec0baf1de 132 {
Wolfgang Betz 67:93bec0baf1de 133 tempRegValue &= ~AES_MASK;
Wolfgang Betz 67:93bec0baf1de 134 }
Wolfgang Betz 67:93bec0baf1de 135
Wolfgang Betz 67:93bec0baf1de 136 /* Writes the ANA_FUNC_CONF0 register to enable or disable the AES engine */
Wolfgang Betz 67:93bec0baf1de 137 g_xStatus = SpiritSpiWriteRegisters(ANA_FUNC_CONF0_BASE, 1, &tempRegValue);
Wolfgang Betz 67:93bec0baf1de 138
Wolfgang Betz 67:93bec0baf1de 139 }
Wolfgang Betz 67:93bec0baf1de 140
Wolfgang Betz 67:93bec0baf1de 141
Wolfgang Betz 67:93bec0baf1de 142 /**
Wolfgang Betz 67:93bec0baf1de 143 * @brief Writes the data to encrypt or decrypt, or the encryption key for the
Wolfgang Betz 67:93bec0baf1de 144 * derive decryption key operation into the AES_DATA_IN registers.
Wolfgang Betz 67:93bec0baf1de 145 * @param pcBufferDataIn pointer to the user data buffer. The first byte of the array
Wolfgang Betz 67:93bec0baf1de 146 * shall be the MSB byte and it will be put in the AES_DATA_IN[0] register, while
Wolfgang Betz 67:93bec0baf1de 147 * the last one shall be the LSB and it will be put in the AES_DATA_IN[cDataLength-1]
Wolfgang Betz 67:93bec0baf1de 148 * register. If data to write are less than 16 bytes the remaining AES_DATA_IN registers
Wolfgang Betz 67:93bec0baf1de 149 * will be filled with bytes equal to 0. This parameter is an uint8_t*.
Wolfgang Betz 67:93bec0baf1de 150 * @param cDataLength length of data in bytes.
Wolfgang Betz 67:93bec0baf1de 151 * This parameter is an uint8_t.
Wolfgang Betz 67:93bec0baf1de 152 * @retval None
Wolfgang Betz 67:93bec0baf1de 153 */
Wolfgang Betz 67:93bec0baf1de 154 void SpiritAesWriteDataIn(uint8_t* pcBufferDataIn, uint8_t cDataLength)
Wolfgang Betz 67:93bec0baf1de 155 {
Wolfgang Betz 67:93bec0baf1de 156 uint8_t i, dataInArray[16];
Wolfgang Betz 67:93bec0baf1de 157
Wolfgang Betz 67:93bec0baf1de 158 /* Verifies that there are no more than 16 bytes */
Wolfgang Betz 67:93bec0baf1de 159 (cDataLength>16) ? (cDataLength=16) : cDataLength;
Wolfgang Betz 67:93bec0baf1de 160
Wolfgang Betz 67:93bec0baf1de 161 /* Fill the dataInArray with the data buffer, using padding */
Wolfgang Betz 67:93bec0baf1de 162 for(i=0;i<16;i++)
Wolfgang Betz 67:93bec0baf1de 163 {
Wolfgang Betz 67:93bec0baf1de 164 (i<(16 - cDataLength)) ? (dataInArray[i]=0):(dataInArray[i]=pcBufferDataIn[15-i]);
Wolfgang Betz 67:93bec0baf1de 165
Wolfgang Betz 67:93bec0baf1de 166 }
Wolfgang Betz 67:93bec0baf1de 167
Wolfgang Betz 67:93bec0baf1de 168 /* Writes the AES_DATA_IN registers */
Wolfgang Betz 67:93bec0baf1de 169 g_xStatus = SpiritSpiWriteRegisters(AES_DATA_IN_15_BASE, 16, dataInArray);
Wolfgang Betz 67:93bec0baf1de 170
Wolfgang Betz 67:93bec0baf1de 171 }
Wolfgang Betz 67:93bec0baf1de 172
Wolfgang Betz 67:93bec0baf1de 173
Wolfgang Betz 67:93bec0baf1de 174 /**
Wolfgang Betz 67:93bec0baf1de 175 * @brief Returns the encrypted or decrypted data or the decription key from the AES_DATA_OUT register.
Wolfgang Betz 67:93bec0baf1de 176 * @param pcBufferDataOut pointer to the user data buffer. The AES_DATA_OUT[0]
Wolfgang Betz 67:93bec0baf1de 177 * register value will be put as first element of the buffer (MSB), while the
Wolfgang Betz 67:93bec0baf1de 178 * AES_DAT_OUT[cDataLength-1] register value will be put as last element of the buffer (LSB).
Wolfgang Betz 67:93bec0baf1de 179 * This parameter is a uint8_t*.
Wolfgang Betz 67:93bec0baf1de 180 * @param cDataLength length of data to read in bytes.
Wolfgang Betz 67:93bec0baf1de 181 * This parameter is a uint8_t.
Wolfgang Betz 67:93bec0baf1de 182 * @retval None
Wolfgang Betz 67:93bec0baf1de 183 */
Wolfgang Betz 67:93bec0baf1de 184 void SpiritAesReadDataOut(uint8_t* pcBufferDataOut, uint8_t cDataLength)
Wolfgang Betz 67:93bec0baf1de 185 {
Wolfgang Betz 67:93bec0baf1de 186 uint8_t address, dataOutArray[16];
Wolfgang Betz 67:93bec0baf1de 187
Wolfgang Betz 67:93bec0baf1de 188 /* Verifies that there are no more than 16 bytes */
Wolfgang Betz 67:93bec0baf1de 189 (cDataLength>16) ? (cDataLength=16) : cDataLength;
Wolfgang Betz 67:93bec0baf1de 190
Wolfgang Betz 67:93bec0baf1de 191 /* Evaluates the address of AES_DATA_OUT from which start to read */
Wolfgang Betz 67:93bec0baf1de 192 address = AES_DATA_OUT_15_BASE+16-cDataLength;
Wolfgang Betz 67:93bec0baf1de 193
Wolfgang Betz 67:93bec0baf1de 194 /* Reads the exact number of AES_DATA_OUT registers */
Wolfgang Betz 67:93bec0baf1de 195 g_xStatus = (SpiritSpiReadRegisters(address, cDataLength, dataOutArray));
Wolfgang Betz 67:93bec0baf1de 196
Wolfgang Betz 67:93bec0baf1de 197 /* Copy in the user buffer the read values changing the order */
Wolfgang Betz 67:93bec0baf1de 198 for(int i = (cDataLength-1); i>=0; i--)
Wolfgang Betz 67:93bec0baf1de 199 {
Wolfgang Betz 67:93bec0baf1de 200 *pcBufferDataOut = dataOutArray[i];
Wolfgang Betz 67:93bec0baf1de 201 pcBufferDataOut++;
Wolfgang Betz 67:93bec0baf1de 202 }
Wolfgang Betz 67:93bec0baf1de 203
Wolfgang Betz 67:93bec0baf1de 204 }
Wolfgang Betz 67:93bec0baf1de 205
Wolfgang Betz 67:93bec0baf1de 206
Wolfgang Betz 67:93bec0baf1de 207 /**
Wolfgang Betz 67:93bec0baf1de 208 * @brief Writes the encryption key into the AES_KEY_IN register.
Wolfgang Betz 67:93bec0baf1de 209 * @param pcKey pointer to the buffer of 4 words containing the AES key.
Wolfgang Betz 67:93bec0baf1de 210 * The first byte of the buffer shall be the most significant byte AES_KEY_0 of the AES key.
Wolfgang Betz 67:93bec0baf1de 211 * The last byte of the buffer shall be the less significant byte AES_KEY_15 of the AES key.
Wolfgang Betz 67:93bec0baf1de 212 * This parameter is an uint8_t*.
Wolfgang Betz 67:93bec0baf1de 213 * @retval None
Wolfgang Betz 67:93bec0baf1de 214 */
Wolfgang Betz 67:93bec0baf1de 215 void SpiritAesWriteKey(uint8_t* pcKey)
Wolfgang Betz 67:93bec0baf1de 216 {
Wolfgang Betz 67:93bec0baf1de 217 uint8_t pcTempKey[16];
Wolfgang Betz 67:93bec0baf1de 218 for (uint8_t i = 0; i < 16; i++)
Wolfgang Betz 67:93bec0baf1de 219 {
Wolfgang Betz 67:93bec0baf1de 220 pcTempKey[15-i] = pcKey[i];
Wolfgang Betz 67:93bec0baf1de 221 }
Wolfgang Betz 67:93bec0baf1de 222
Wolfgang Betz 67:93bec0baf1de 223 /* Writes the AES_DATA_IN registers */
Wolfgang Betz 67:93bec0baf1de 224 g_xStatus = SpiritSpiWriteRegisters(AES_KEY_IN_15_BASE, 16, pcTempKey);
Wolfgang Betz 67:93bec0baf1de 225
Wolfgang Betz 67:93bec0baf1de 226 }
Wolfgang Betz 67:93bec0baf1de 227
Wolfgang Betz 67:93bec0baf1de 228 /**
Wolfgang Betz 67:93bec0baf1de 229 * @brief Returns the encryption/decryption key from the AES_KEY_IN register.
Wolfgang Betz 67:93bec0baf1de 230 * @param pcKey pointer to the buffer of 4 words (16 bytes) containing the AES key.
Wolfgang Betz 67:93bec0baf1de 231 * The first byte of the buffer shall be the most significant byte AES_KEY_0 of the AES key.
Wolfgang Betz 67:93bec0baf1de 232 * The last byte of the buffer shall be the less significant byte AES_KEY_15 of the AES key.
Wolfgang Betz 67:93bec0baf1de 233 * This parameter is an uint8_t*.
Wolfgang Betz 67:93bec0baf1de 234 * @retval None
Wolfgang Betz 67:93bec0baf1de 235 */
Wolfgang Betz 67:93bec0baf1de 236 void SpiritAesReadKey(uint8_t* pcKey)
Wolfgang Betz 67:93bec0baf1de 237 {
Wolfgang Betz 67:93bec0baf1de 238 uint8_t pcTempKey[16];
Wolfgang Betz 67:93bec0baf1de 239
Wolfgang Betz 67:93bec0baf1de 240 /* Reads the AES_DATA_IN registers */
Wolfgang Betz 67:93bec0baf1de 241 g_xStatus = SpiritSpiReadRegisters(AES_KEY_IN_15_BASE, 16, pcTempKey);
Wolfgang Betz 67:93bec0baf1de 242
Wolfgang Betz 67:93bec0baf1de 243
Wolfgang Betz 67:93bec0baf1de 244 for (uint8_t i = 0; i < 16; i++)
Wolfgang Betz 67:93bec0baf1de 245 pcKey[i] = pcTempKey[15-i];
Wolfgang Betz 67:93bec0baf1de 246
Wolfgang Betz 67:93bec0baf1de 247 }
Wolfgang Betz 67:93bec0baf1de 248
Wolfgang Betz 67:93bec0baf1de 249
Wolfgang Betz 67:93bec0baf1de 250
Wolfgang Betz 67:93bec0baf1de 251 /**
Wolfgang Betz 67:93bec0baf1de 252 * @brief Derives the decryption key from a given encryption key.
Wolfgang Betz 67:93bec0baf1de 253 * @param None.
Wolfgang Betz 67:93bec0baf1de 254 * @retval None.
Wolfgang Betz 67:93bec0baf1de 255 */
Wolfgang Betz 67:93bec0baf1de 256 void SpiritAesDeriveDecKeyFromEnc(void)
Wolfgang Betz 67:93bec0baf1de 257 {
Wolfgang Betz 67:93bec0baf1de 258 /* Sends the COMMAND_AES_KEY command */
Wolfgang Betz 67:93bec0baf1de 259 g_xStatus = SpiritSpiCommandStrobes(COMMAND_AES_KEY);
Wolfgang Betz 67:93bec0baf1de 260
Wolfgang Betz 67:93bec0baf1de 261 }
Wolfgang Betz 67:93bec0baf1de 262
Wolfgang Betz 67:93bec0baf1de 263
Wolfgang Betz 67:93bec0baf1de 264 /**
Wolfgang Betz 67:93bec0baf1de 265 * @brief Executes the encryption operation.
Wolfgang Betz 67:93bec0baf1de 266 * @param None.
Wolfgang Betz 67:93bec0baf1de 267 * @retval None.
Wolfgang Betz 67:93bec0baf1de 268 */
Wolfgang Betz 67:93bec0baf1de 269 void SpiritAesExecuteEncryption(void)
Wolfgang Betz 67:93bec0baf1de 270 {
Wolfgang Betz 67:93bec0baf1de 271 /* Sends the COMMAND_AES_ENC command */
Wolfgang Betz 67:93bec0baf1de 272 g_xStatus = SpiritSpiCommandStrobes(COMMAND_AES_ENC);
Wolfgang Betz 67:93bec0baf1de 273
Wolfgang Betz 67:93bec0baf1de 274 }
Wolfgang Betz 67:93bec0baf1de 275
Wolfgang Betz 67:93bec0baf1de 276
Wolfgang Betz 67:93bec0baf1de 277 /**
Wolfgang Betz 67:93bec0baf1de 278 * @brief Executes the decryption operation.
Wolfgang Betz 67:93bec0baf1de 279 * @param None.
Wolfgang Betz 67:93bec0baf1de 280 * @retval None.
Wolfgang Betz 67:93bec0baf1de 281 */
Wolfgang Betz 67:93bec0baf1de 282 void SpiritAesExecuteDecryption(void)
Wolfgang Betz 67:93bec0baf1de 283 {
Wolfgang Betz 67:93bec0baf1de 284 /* Sends the COMMAND_AES_DEC command */
Wolfgang Betz 67:93bec0baf1de 285 g_xStatus = SpiritSpiCommandStrobes(COMMAND_AES_DEC);
Wolfgang Betz 67:93bec0baf1de 286
Wolfgang Betz 67:93bec0baf1de 287 }
Wolfgang Betz 67:93bec0baf1de 288
Wolfgang Betz 67:93bec0baf1de 289
Wolfgang Betz 67:93bec0baf1de 290 /**
Wolfgang Betz 67:93bec0baf1de 291 * @brief Executes the key derivation and the decryption operation.
Wolfgang Betz 67:93bec0baf1de 292 * @param None.
Wolfgang Betz 67:93bec0baf1de 293 * @retval None.
Wolfgang Betz 67:93bec0baf1de 294 */
Wolfgang Betz 67:93bec0baf1de 295 void SpiritAesDeriveDecKeyExecuteDec(void)
Wolfgang Betz 67:93bec0baf1de 296 {
Wolfgang Betz 67:93bec0baf1de 297 /* Sends the COMMAND_AES_KEY_DEC command */
Wolfgang Betz 67:93bec0baf1de 298 g_xStatus = SpiritSpiCommandStrobes(COMMAND_AES_KEY_DEC);
Wolfgang Betz 67:93bec0baf1de 299
Wolfgang Betz 67:93bec0baf1de 300 }
Wolfgang Betz 67:93bec0baf1de 301
Wolfgang Betz 67:93bec0baf1de 302
Wolfgang Betz 67:93bec0baf1de 303 /**
Wolfgang Betz 67:93bec0baf1de 304 * @}
Wolfgang Betz 67:93bec0baf1de 305 */
Wolfgang Betz 67:93bec0baf1de 306
Wolfgang Betz 67:93bec0baf1de 307
Wolfgang Betz 67:93bec0baf1de 308 /**
Wolfgang Betz 67:93bec0baf1de 309 * @}
Wolfgang Betz 67:93bec0baf1de 310 */
Wolfgang Betz 67:93bec0baf1de 311
Wolfgang Betz 67:93bec0baf1de 312
Wolfgang Betz 67:93bec0baf1de 313 /**
Wolfgang Betz 67:93bec0baf1de 314 * @}
Wolfgang Betz 67:93bec0baf1de 315 */
Wolfgang Betz 67:93bec0baf1de 316
Wolfgang Betz 67:93bec0baf1de 317
Wolfgang Betz 67:93bec0baf1de 318
Wolfgang Betz 67:93bec0baf1de 319 /******************* (C) COPYRIGHT 2015 STMicroelectronics *****END OF FILE****/