MacroRat / MouseCode

Mouse code for the MacroRat

Dependencies:   ITG3200 QEI

mbed-dev/targets/TARGET_NUVOTON/TARGET_NUC472/device/StdDriver/nuc472_crypto.c@46:b156ef445742, 2017-06-03 (annotated)

Committer:
sahilmgandhi
Date:
Sat Jun 03 00:22:44 2017 +0000
Revision:
46:b156ef445742
Parent:
18:6a4db94011d3 
Final code for internal battlebot competition.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
sahilmgandhi 18:6a4db94011d3 1 /**************************************************************************//**
sahilmgandhi 18:6a4db94011d3 2 * @file crypto.c
sahilmgandhi 18:6a4db94011d3 3 * @version V1.10
sahilmgandhi 18:6a4db94011d3 4 * $Revision: 11 $
sahilmgandhi 18:6a4db94011d3 5 * $Date: 14/10/03 1:54p $
sahilmgandhi 18:6a4db94011d3 6 * @brief Cryptographic Accelerator driver source file
sahilmgandhi 18:6a4db94011d3 7 *
sahilmgandhi 18:6a4db94011d3 8 * @note
sahilmgandhi 18:6a4db94011d3 9 * Copyright (C) 2014 Nuvoton Technology Corp. All rights reserved.
sahilmgandhi 18:6a4db94011d3 10 *****************************************************************************/
sahilmgandhi 18:6a4db94011d3 11
sahilmgandhi 18:6a4db94011d3 12 #include <string.h>
sahilmgandhi 18:6a4db94011d3 13 #include "NUC472_442.h"
sahilmgandhi 18:6a4db94011d3 14
sahilmgandhi 18:6a4db94011d3 15 /** @addtogroup NUC472_442_Device_Driver NUC472/NUC442 Device Driver
sahilmgandhi 18:6a4db94011d3 16 @{
sahilmgandhi 18:6a4db94011d3 17 */
sahilmgandhi 18:6a4db94011d3 18
sahilmgandhi 18:6a4db94011d3 19 /** @addtogroup NUC472_442_CRYPTO_Driver CRYPTO Driver
sahilmgandhi 18:6a4db94011d3 20 @{
sahilmgandhi 18:6a4db94011d3 21 */
sahilmgandhi 18:6a4db94011d3 22
sahilmgandhi 18:6a4db94011d3 23
sahilmgandhi 18:6a4db94011d3 24 /** @addtogroup NUC472_442_CRYPTO_EXPORTED_FUNCTIONS CRYPTO Exported Functions
sahilmgandhi 18:6a4db94011d3 25 @{
sahilmgandhi 18:6a4db94011d3 26 */
sahilmgandhi 18:6a4db94011d3 27
sahilmgandhi 18:6a4db94011d3 28 /// @cond HIDDEN_SYMBOLS
sahilmgandhi 18:6a4db94011d3 29
sahilmgandhi 18:6a4db94011d3 30 static uint32_t g_AES_CTL[4];
sahilmgandhi 18:6a4db94011d3 31 static uint32_t g_TDES_CTL[4];
sahilmgandhi 18:6a4db94011d3 32
sahilmgandhi 18:6a4db94011d3 33 /// @endcond HIDDEN_SYMBOLS
sahilmgandhi 18:6a4db94011d3 34
sahilmgandhi 18:6a4db94011d3 35 /**
sahilmgandhi 18:6a4db94011d3 36 * @brief Open PRNG function
sahilmgandhi 18:6a4db94011d3 37 * @param[in] u32KeySize is PRNG key size, including:
sahilmgandhi 18:6a4db94011d3 38 * - \ref PRNG_KEY_SIZE_64
sahilmgandhi 18:6a4db94011d3 39 * - \ref PRNG_KEY_SIZE_128
sahilmgandhi 18:6a4db94011d3 40 * - \ref PRNG_KEY_SIZE_192
sahilmgandhi 18:6a4db94011d3 41 * - \ref PRNG_KEY_SIZE_256
sahilmgandhi 18:6a4db94011d3 42 * @param[in] u32SeedReload is PRNG seed reload or not, including:
sahilmgandhi 18:6a4db94011d3 43 * - \ref PRNG_SEED_CONT
sahilmgandhi 18:6a4db94011d3 44 * - \ref PRNG_SEED_RELOAD
sahilmgandhi 18:6a4db94011d3 45 * @param[in] u32Seed The new seed. Only valid when u32SeedReload is PRNG_SEED_RELOAD.
sahilmgandhi 18:6a4db94011d3 46 * @return None
sahilmgandhi 18:6a4db94011d3 47 */
sahilmgandhi 18:6a4db94011d3 48 void PRNG_Open(uint32_t u32KeySize, uint32_t u32SeedReload, uint32_t u32Seed)
sahilmgandhi 18:6a4db94011d3 49 {
sahilmgandhi 18:6a4db94011d3 50 if (u32SeedReload)
sahilmgandhi 18:6a4db94011d3 51 CRPT->PRNG_SEED = u32Seed;
sahilmgandhi 18:6a4db94011d3 52
sahilmgandhi 18:6a4db94011d3 53 CRPT->PRNG_CTL = (u32KeySize << CRPT_PRNG_CTL_KEYSZ_Pos) |
sahilmgandhi 18:6a4db94011d3 54 (u32SeedReload << CRPT_PRNG_CTL_SEEDRLD_Pos);
sahilmgandhi 18:6a4db94011d3 55 }
sahilmgandhi 18:6a4db94011d3 56
sahilmgandhi 18:6a4db94011d3 57 /**
sahilmgandhi 18:6a4db94011d3 58 * @brief Start to generate one PRNG key.
sahilmgandhi 18:6a4db94011d3 59 * @param None
sahilmgandhi 18:6a4db94011d3 60 * @return None
sahilmgandhi 18:6a4db94011d3 61 */
sahilmgandhi 18:6a4db94011d3 62 void PRNG_Start(void)
sahilmgandhi 18:6a4db94011d3 63 {
sahilmgandhi 18:6a4db94011d3 64 CRPT->PRNG_CTL |= CRPT_PRNG_CTL_START_Msk;
sahilmgandhi 18:6a4db94011d3 65 }
sahilmgandhi 18:6a4db94011d3 66
sahilmgandhi 18:6a4db94011d3 67 /**
sahilmgandhi 18:6a4db94011d3 68 * @brief Read the PRNG key.
sahilmgandhi 18:6a4db94011d3 69 * @param[out] u32RandKey The key buffer to store newly generated PRNG key.
sahilmgandhi 18:6a4db94011d3 70 * @return None
sahilmgandhi 18:6a4db94011d3 71 */
sahilmgandhi 18:6a4db94011d3 72 void PRNG_Read(uint32_t u32RandKey[])
sahilmgandhi 18:6a4db94011d3 73 {
sahilmgandhi 18:6a4db94011d3 74 int i, wcnt;
sahilmgandhi 18:6a4db94011d3 75
sahilmgandhi 18:6a4db94011d3 76 wcnt = (((CRPT->PRNG_CTL & CRPT_PRNG_CTL_KEYSZ_Msk)>>CRPT_PRNG_CTL_KEYSZ_Pos)+1)*2;
sahilmgandhi 18:6a4db94011d3 77 for (i = 0; i < wcnt; i++)
sahilmgandhi 18:6a4db94011d3 78 u32RandKey[i] = *(uint32_t *)((uint32_t)&(CRPT->PRNG_KEY0) + (i * 4));
sahilmgandhi 18:6a4db94011d3 79 }
sahilmgandhi 18:6a4db94011d3 80
sahilmgandhi 18:6a4db94011d3 81
sahilmgandhi 18:6a4db94011d3 82 /**
sahilmgandhi 18:6a4db94011d3 83 * @brief Open AES encrypt/decrypt function.
sahilmgandhi 18:6a4db94011d3 84 * @param[in] u32Channel AES channel. Must be 0~3.
sahilmgandhi 18:6a4db94011d3 85 * @param[in] u32EncDec 1: AES encode; 0: AES decode
sahilmgandhi 18:6a4db94011d3 86 * @param[in] u32OpMode AES operation mode, including:
sahilmgandhi 18:6a4db94011d3 87 * - \ref AES_MODE_ECB
sahilmgandhi 18:6a4db94011d3 88 * - \ref AES_MODE_CBC
sahilmgandhi 18:6a4db94011d3 89 * - \ref AES_MODE_CFB
sahilmgandhi 18:6a4db94011d3 90 * - \ref AES_MODE_OFB
sahilmgandhi 18:6a4db94011d3 91 * - \ref AES_MODE_CTR
sahilmgandhi 18:6a4db94011d3 92 * - \ref AES_MODE_CBC_CS1
sahilmgandhi 18:6a4db94011d3 93 * - \ref AES_MODE_CBC_CS2
sahilmgandhi 18:6a4db94011d3 94 * - \ref AES_MODE_CBC_CS3
sahilmgandhi 18:6a4db94011d3 95 * @param[in] u32KeySize is AES key size, including:
sahilmgandhi 18:6a4db94011d3 96 * - \ref AES_KEY_SIZE_128
sahilmgandhi 18:6a4db94011d3 97 * - \ref AES_KEY_SIZE_192
sahilmgandhi 18:6a4db94011d3 98 * - \ref AES_KEY_SIZE_256
sahilmgandhi 18:6a4db94011d3 99 * @param[in] u32SwapType is AES input/output data swap control, including:
sahilmgandhi 18:6a4db94011d3 100 * - \ref AES_NO_SWAP
sahilmgandhi 18:6a4db94011d3 101 * - \ref AES_OUT_SWAP
sahilmgandhi 18:6a4db94011d3 102 * - \ref AES_IN_SWAP
sahilmgandhi 18:6a4db94011d3 103 * - \ref AES_IN_OUT_SWAP
sahilmgandhi 18:6a4db94011d3 104 * @return None
sahilmgandhi 18:6a4db94011d3 105 */
sahilmgandhi 18:6a4db94011d3 106 void AES_Open(uint32_t u32Channel, uint32_t u32EncDec,
sahilmgandhi 18:6a4db94011d3 107 uint32_t u32OpMode, uint32_t u32KeySize, uint32_t u32SwapType)
sahilmgandhi 18:6a4db94011d3 108 {
sahilmgandhi 18:6a4db94011d3 109 CRPT->AES_CTL = (u32Channel << CRPT_AES_CTL_CHANNEL_Pos) |
sahilmgandhi 18:6a4db94011d3 110 (u32EncDec << CRPT_AES_CTL_ENCRPT_Pos) |
sahilmgandhi 18:6a4db94011d3 111 (u32OpMode << CRPT_AES_CTL_OPMODE_Pos) |
sahilmgandhi 18:6a4db94011d3 112 (u32KeySize << CRPT_AES_CTL_KEYSZ_Pos) |
sahilmgandhi 18:6a4db94011d3 113 (u32SwapType << CRPT_AES_CTL_OUTSWAP_Pos);
sahilmgandhi 18:6a4db94011d3 114 g_AES_CTL[u32Channel] = CRPT->AES_CTL;
sahilmgandhi 18:6a4db94011d3 115 }
sahilmgandhi 18:6a4db94011d3 116
sahilmgandhi 18:6a4db94011d3 117 /**
sahilmgandhi 18:6a4db94011d3 118 * @brief Start AES encrypt/decrypt
sahilmgandhi 18:6a4db94011d3 119 * @param[in] u32Channel AES channel. Must be 0~3.
sahilmgandhi 18:6a4db94011d3 120 * @param[in] u32DMAMode AES DMA control, including:
sahilmgandhi 18:6a4db94011d3 121 * - \ref CRYPTO_DMA_ONE_SHOT One shop AES encrypt/decrypt.
sahilmgandhi 18:6a4db94011d3 122 * - \ref CRYPTO_DMA_CONTINUE Continuous AES encrypt/decrypt.
sahilmgandhi 18:6a4db94011d3 123 * - \ref CRYPTO_DMA_LAST Last AES encrypt/decrypt of a series of AES_Start.
sahilmgandhi 18:6a4db94011d3 124 * @return None
sahilmgandhi 18:6a4db94011d3 125 */
sahilmgandhi 18:6a4db94011d3 126 void AES_Start(int32_t u32Channel, uint32_t u32DMAMode)
sahilmgandhi 18:6a4db94011d3 127 {
sahilmgandhi 18:6a4db94011d3 128 CRPT->AES_CTL = g_AES_CTL[u32Channel];
sahilmgandhi 18:6a4db94011d3 129 CRPT->AES_CTL |= CRPT_AES_CTL_START_Msk | (u32DMAMode << CRPT_AES_CTL_DMALAST_Pos);
sahilmgandhi 18:6a4db94011d3 130 }
sahilmgandhi 18:6a4db94011d3 131
sahilmgandhi 18:6a4db94011d3 132 /**
sahilmgandhi 18:6a4db94011d3 133 * @brief Set AES keys
sahilmgandhi 18:6a4db94011d3 134 * @param[in] u32Channel AES channel. Must be 0~3.
sahilmgandhi 18:6a4db94011d3 135 * @param[in] au32Keys An word array contains AES keys.
sahilmgandhi 18:6a4db94011d3 136 * @param[in] u32KeySize is AES key size, including:
sahilmgandhi 18:6a4db94011d3 137 * - \ref AES_KEY_SIZE_128
sahilmgandhi 18:6a4db94011d3 138 * - \ref AES_KEY_SIZE_192
sahilmgandhi 18:6a4db94011d3 139 * - \ref AES_KEY_SIZE_256
sahilmgandhi 18:6a4db94011d3 140 * @return None
sahilmgandhi 18:6a4db94011d3 141 */
sahilmgandhi 18:6a4db94011d3 142 void AES_SetKey(uint32_t u32Channel, uint32_t au32Keys[], uint32_t u32KeySize)
sahilmgandhi 18:6a4db94011d3 143 {
sahilmgandhi 18:6a4db94011d3 144 int i, wcnt;
sahilmgandhi 18:6a4db94011d3 145 uint32_t *key_ptr;
sahilmgandhi 18:6a4db94011d3 146
sahilmgandhi 18:6a4db94011d3 147 key_ptr = (uint32_t *)((uint32_t)&CRPT->AES0_KEY0 + (u32Channel * 0x3C));
sahilmgandhi 18:6a4db94011d3 148 wcnt = 4 + u32KeySize*2;
sahilmgandhi 18:6a4db94011d3 149 for (i = 0; i < wcnt; i++, key_ptr++)
sahilmgandhi 18:6a4db94011d3 150 *key_ptr = au32Keys[i];
sahilmgandhi 18:6a4db94011d3 151 }
sahilmgandhi 18:6a4db94011d3 152
sahilmgandhi 18:6a4db94011d3 153 /**
sahilmgandhi 18:6a4db94011d3 154 * @brief Set AES initial vectors
sahilmgandhi 18:6a4db94011d3 155 * @param[in] u32Channel AES channel. Must be 0~3.
sahilmgandhi 18:6a4db94011d3 156 * @param[in] au32IV A four entry word array contains AES initial vectors.
sahilmgandhi 18:6a4db94011d3 157 * @return None
sahilmgandhi 18:6a4db94011d3 158 */
sahilmgandhi 18:6a4db94011d3 159 void AES_SetInitVect(uint32_t u32Channel, uint32_t au32IV[])
sahilmgandhi 18:6a4db94011d3 160 {
sahilmgandhi 18:6a4db94011d3 161 int i;
sahilmgandhi 18:6a4db94011d3 162 uint32_t *key_ptr;
sahilmgandhi 18:6a4db94011d3 163
sahilmgandhi 18:6a4db94011d3 164 key_ptr = (uint32_t *)((uint32_t)&CRPT->AES0_IV0 + (u32Channel * 0x3C));
sahilmgandhi 18:6a4db94011d3 165 for (i = 0; i < 4; i++, key_ptr++)
sahilmgandhi 18:6a4db94011d3 166 *key_ptr = au32IV[i];
sahilmgandhi 18:6a4db94011d3 167 }
sahilmgandhi 18:6a4db94011d3 168
sahilmgandhi 18:6a4db94011d3 169 /**
sahilmgandhi 18:6a4db94011d3 170 * @brief Set AES DMA transfer configuration.
sahilmgandhi 18:6a4db94011d3 171 * @param[in] u32Channel AES channel. Must be 0~3.
sahilmgandhi 18:6a4db94011d3 172 * @param[in] u32SrcAddr AES DMA source address
sahilmgandhi 18:6a4db94011d3 173 * @param[in] u32DstAddr AES DMA destination address
sahilmgandhi 18:6a4db94011d3 174 * @param[in] u32TransCnt AES DMA transfer byte count
sahilmgandhi 18:6a4db94011d3 175 * @return None
sahilmgandhi 18:6a4db94011d3 176 */
sahilmgandhi 18:6a4db94011d3 177 void AES_SetDMATransfer(uint32_t u32Channel, uint32_t u32SrcAddr,
sahilmgandhi 18:6a4db94011d3 178 uint32_t u32DstAddr, uint32_t u32TransCnt)
sahilmgandhi 18:6a4db94011d3 179 {
sahilmgandhi 18:6a4db94011d3 180 *(uint32_t *)((uint32_t)&CRPT->AES0_SADDR + (u32Channel * 0x3C)) = u32SrcAddr;
sahilmgandhi 18:6a4db94011d3 181 *(uint32_t *)((uint32_t)&CRPT->AES0_DADDR + (u32Channel * 0x3C)) = u32DstAddr;
sahilmgandhi 18:6a4db94011d3 182 *(uint32_t *)((uint32_t)&CRPT->AES0_CNT + (u32Channel * 0x3C)) = u32TransCnt;
sahilmgandhi 18:6a4db94011d3 183 }
sahilmgandhi 18:6a4db94011d3 184
sahilmgandhi 18:6a4db94011d3 185 /**
sahilmgandhi 18:6a4db94011d3 186 * @brief Open TDES encrypt/decrypt function.
sahilmgandhi 18:6a4db94011d3 187 * @param[in] u32Channel TDES channel. Must be 0~3.
sahilmgandhi 18:6a4db94011d3 188 * @param[in] u32EncDec 1: TDES encode; 0: TDES decode
sahilmgandhi 18:6a4db94011d3 189 * @param[in] u32OpMode TDES operation mode, including:
sahilmgandhi 18:6a4db94011d3 190 * - \ref TDES_MODE_ECB
sahilmgandhi 18:6a4db94011d3 191 * - \ref TDES_MODE_CBC
sahilmgandhi 18:6a4db94011d3 192 * - \ref TDES_MODE_CFB
sahilmgandhi 18:6a4db94011d3 193 * - \ref TDES_MODE_OFB
sahilmgandhi 18:6a4db94011d3 194 * - \ref TDES_MODE_CTR
sahilmgandhi 18:6a4db94011d3 195 * @param[in] u32SwapType is TDES input/output data swap control and word swap control, including:
sahilmgandhi 18:6a4db94011d3 196 * - \ref TDES_NO_SWAP
sahilmgandhi 18:6a4db94011d3 197 * - \ref TDES_WHL_SWAP
sahilmgandhi 18:6a4db94011d3 198 * - \ref TDES_OUT_SWAP
sahilmgandhi 18:6a4db94011d3 199 * - \ref TDES_OUT_WHL_SWAP
sahilmgandhi 18:6a4db94011d3 200 * - \ref TDES_IN_SWAP
sahilmgandhi 18:6a4db94011d3 201 * - \ref TDES_IN_WHL_SWAP
sahilmgandhi 18:6a4db94011d3 202 * - \ref TDES_IN_OUT_SWAP
sahilmgandhi 18:6a4db94011d3 203 * - \ref TDES_IN_OUT_WHL_SWAP
sahilmgandhi 18:6a4db94011d3 204 * @return None
sahilmgandhi 18:6a4db94011d3 205 */
sahilmgandhi 18:6a4db94011d3 206 void TDES_Open(uint32_t u32Channel, uint32_t u32EncDec, uint32_t u32OpMode, uint32_t u32SwapType)
sahilmgandhi 18:6a4db94011d3 207 {
sahilmgandhi 18:6a4db94011d3 208 g_TDES_CTL[u32Channel] = (u32Channel << CRPT_TDES_CTL_CHANNEL_Pos) |
sahilmgandhi 18:6a4db94011d3 209 (u32EncDec << CRPT_TDES_CTL_ENCRPT_Pos) |
sahilmgandhi 18:6a4db94011d3 210 u32OpMode |
sahilmgandhi 18:6a4db94011d3 211 (u32SwapType << CRPT_TDES_CTL_BLKSWAP_Pos);
sahilmgandhi 18:6a4db94011d3 212 }
sahilmgandhi 18:6a4db94011d3 213
sahilmgandhi 18:6a4db94011d3 214 /**
sahilmgandhi 18:6a4db94011d3 215 * @brief Start TDES encrypt/decrypt
sahilmgandhi 18:6a4db94011d3 216 * @param[in] u32Channel TDES channel. Must be 0~3.
sahilmgandhi 18:6a4db94011d3 217 * @param[in] u32DMAMode TDES DMA control, including:
sahilmgandhi 18:6a4db94011d3 218 * - \ref CRYPTO_DMA_ONE_SHOT One shop TDES encrypt/decrypt.
sahilmgandhi 18:6a4db94011d3 219 * - \ref CRYPTO_DMA_CONTINUE Continuous TDES encrypt/decrypt.
sahilmgandhi 18:6a4db94011d3 220 * - \ref CRYPTO_DMA_LAST Last TDES encrypt/decrypt of a series of TDES_Start.
sahilmgandhi 18:6a4db94011d3 221 * @return None
sahilmgandhi 18:6a4db94011d3 222 */
sahilmgandhi 18:6a4db94011d3 223 void TDES_Start(int32_t u32Channel, uint32_t u32DMAMode)
sahilmgandhi 18:6a4db94011d3 224 {
sahilmgandhi 18:6a4db94011d3 225 g_TDES_CTL[u32Channel] |= CRPT_TDES_CTL_START_Msk | (u32DMAMode << CRPT_TDES_CTL_DMALAST_Pos);
sahilmgandhi 18:6a4db94011d3 226 CRPT->TDES_CTL = g_TDES_CTL[u32Channel];
sahilmgandhi 18:6a4db94011d3 227 }
sahilmgandhi 18:6a4db94011d3 228
sahilmgandhi 18:6a4db94011d3 229 /**
sahilmgandhi 18:6a4db94011d3 230 * @brief Set TDES keys
sahilmgandhi 18:6a4db94011d3 231 * @param[in] u32Channel TDES channel. Must be 0~3.
sahilmgandhi 18:6a4db94011d3 232 * @param[in] au8Keys The TDES keys.
sahilmgandhi 18:6a4db94011d3 233 * @return None
sahilmgandhi 18:6a4db94011d3 234 */
sahilmgandhi 18:6a4db94011d3 235 void TDES_SetKey(uint32_t u32Channel, uint8_t au8Keys[3][8])
sahilmgandhi 18:6a4db94011d3 236 {
sahilmgandhi 18:6a4db94011d3 237 int i;
sahilmgandhi 18:6a4db94011d3 238 uint8_t *pu8TKey;
sahilmgandhi 18:6a4db94011d3 239
sahilmgandhi 18:6a4db94011d3 240 pu8TKey = (uint8_t *)((uint32_t)&CRPT->TDES0_KEY1H + (0x40 * u32Channel));
sahilmgandhi 18:6a4db94011d3 241 for (i = 0; i < 3; i++, pu8TKey+=8)
sahilmgandhi 18:6a4db94011d3 242 memcpy(pu8TKey, &au8Keys[i][0], 8);
sahilmgandhi 18:6a4db94011d3 243 }
sahilmgandhi 18:6a4db94011d3 244
sahilmgandhi 18:6a4db94011d3 245 /**
sahilmgandhi 18:6a4db94011d3 246 * @brief Set TDES initial vectors
sahilmgandhi 18:6a4db94011d3 247 * @param[in] u32Channel TDES channel. Must be 0~3.
sahilmgandhi 18:6a4db94011d3 248 * @param[in] u32IVH TDES initial vector high word.
sahilmgandhi 18:6a4db94011d3 249 * @param[in] u32IVL TDES initial vector low word.
sahilmgandhi 18:6a4db94011d3 250 * @return None
sahilmgandhi 18:6a4db94011d3 251 */
sahilmgandhi 18:6a4db94011d3 252 void TDES_SetInitVect(uint32_t u32Channel, uint32_t u32IVH, uint32_t u32IVL)
sahilmgandhi 18:6a4db94011d3 253 {
sahilmgandhi 18:6a4db94011d3 254 *(uint32_t *)((uint32_t)&CRPT->TDES0_IVH + 0x40 * u32Channel) = u32IVH;
sahilmgandhi 18:6a4db94011d3 255 *(uint32_t *)((uint32_t)&CRPT->TDES0_IVL + 0x40 * u32Channel) = u32IVL;
sahilmgandhi 18:6a4db94011d3 256 }
sahilmgandhi 18:6a4db94011d3 257
sahilmgandhi 18:6a4db94011d3 258 /**
sahilmgandhi 18:6a4db94011d3 259 * @brief Set TDES DMA transfer configuration.
sahilmgandhi 18:6a4db94011d3 260 * @param[in] u32Channel TDES channel. Must be 0~3.
sahilmgandhi 18:6a4db94011d3 261 * @param[in] u32SrcAddr TDES DMA source address
sahilmgandhi 18:6a4db94011d3 262 * @param[in] u32DstAddr TDES DMA destination address
sahilmgandhi 18:6a4db94011d3 263 * @param[in] u32TransCnt TDES DMA transfer byte count
sahilmgandhi 18:6a4db94011d3 264 * @return None
sahilmgandhi 18:6a4db94011d3 265 */
sahilmgandhi 18:6a4db94011d3 266 void TDES_SetDMATransfer(uint32_t u32Channel, uint32_t u32SrcAddr,
sahilmgandhi 18:6a4db94011d3 267 uint32_t u32DstAddr, uint32_t u32TransCnt)
sahilmgandhi 18:6a4db94011d3 268 {
sahilmgandhi 18:6a4db94011d3 269 *(uint32_t *)((uint32_t)&CRPT->TDES0_SADDR + (u32Channel * 0x40)) = u32SrcAddr;
sahilmgandhi 18:6a4db94011d3 270 *(uint32_t *)((uint32_t)&CRPT->TDES0_DADDR + (u32Channel * 0x40)) = u32DstAddr;
sahilmgandhi 18:6a4db94011d3 271 *(uint32_t *)((uint32_t)&CRPT->TDES0_CNT + (u32Channel * 0x40)) = u32TransCnt;
sahilmgandhi 18:6a4db94011d3 272 }
sahilmgandhi 18:6a4db94011d3 273
sahilmgandhi 18:6a4db94011d3 274 /**
sahilmgandhi 18:6a4db94011d3 275 * @brief Open SHA encrypt function.
sahilmgandhi 18:6a4db94011d3 276 * @param[in] u32OpMode SHA operation mode, including:
sahilmgandhi 18:6a4db94011d3 277 * - \ref SHA_MODE_SHA1
sahilmgandhi 18:6a4db94011d3 278 * - \ref SHA_MODE_SHA224
sahilmgandhi 18:6a4db94011d3 279 * - \ref SHA_MODE_SHA256
sahilmgandhi 18:6a4db94011d3 280 * @param[in] u32SwapType is SHA input/output data swap control, including:
sahilmgandhi 18:6a4db94011d3 281 * - \ref SHA_NO_SWAP
sahilmgandhi 18:6a4db94011d3 282 * - \ref SHA_OUT_SWAP
sahilmgandhi 18:6a4db94011d3 283 * - \ref SHA_IN_SWAP
sahilmgandhi 18:6a4db94011d3 284 * - \ref SHA_IN_OUT_SWAP
sahilmgandhi 18:6a4db94011d3 285 * @return None
sahilmgandhi 18:6a4db94011d3 286 */
sahilmgandhi 18:6a4db94011d3 287 void SHA_Open(uint32_t u32OpMode, uint32_t u32SwapType)
sahilmgandhi 18:6a4db94011d3 288 {
sahilmgandhi 18:6a4db94011d3 289 CRPT->SHA_CTL = (u32OpMode << CRPT_SHA_CTL_OPMODE_Pos) |
sahilmgandhi 18:6a4db94011d3 290 (u32SwapType << CRPT_SHA_CTL_OUTSWAP_Pos);
sahilmgandhi 18:6a4db94011d3 291 }
sahilmgandhi 18:6a4db94011d3 292
sahilmgandhi 18:6a4db94011d3 293 /**
sahilmgandhi 18:6a4db94011d3 294 * @brief Start SHA encrypt
sahilmgandhi 18:6a4db94011d3 295 * @param[in] u32DMAMode TDES DMA control, including:
sahilmgandhi 18:6a4db94011d3 296 * - \ref CRYPTO_DMA_ONE_SHOT One shop SHA encrypt.
sahilmgandhi 18:6a4db94011d3 297 * - \ref CRYPTO_DMA_CONTINUE Continuous SHA encrypt.
sahilmgandhi 18:6a4db94011d3 298 * - \ref CRYPTO_DMA_LAST Last SHA encrypt of a series of SHA_Start.
sahilmgandhi 18:6a4db94011d3 299 * @return None
sahilmgandhi 18:6a4db94011d3 300 */
sahilmgandhi 18:6a4db94011d3 301 void SHA_Start(uint32_t u32DMAMode)
sahilmgandhi 18:6a4db94011d3 302 {
sahilmgandhi 18:6a4db94011d3 303 CRPT->SHA_CTL &= ~(0x7 << CRPT_SHA_CTL_DMALAST_Pos);
sahilmgandhi 18:6a4db94011d3 304 CRPT->SHA_CTL |= CRPT_SHA_CTL_START_Msk | (u32DMAMode << CRPT_SHA_CTL_DMALAST_Pos);
sahilmgandhi 18:6a4db94011d3 305 }
sahilmgandhi 18:6a4db94011d3 306
sahilmgandhi 18:6a4db94011d3 307 /**
sahilmgandhi 18:6a4db94011d3 308 * @brief Set SHA DMA transfer
sahilmgandhi 18:6a4db94011d3 309 * @param[in] u32SrcAddr SHA DMA source address
sahilmgandhi 18:6a4db94011d3 310 * @param[in] u32TransCnt SHA DMA transfer byte count
sahilmgandhi 18:6a4db94011d3 311 * @return None
sahilmgandhi 18:6a4db94011d3 312 */
sahilmgandhi 18:6a4db94011d3 313 void SHA_SetDMATransfer(uint32_t u32SrcAddr, uint32_t u32TransCnt)
sahilmgandhi 18:6a4db94011d3 314 {
sahilmgandhi 18:6a4db94011d3 315 CRPT->SHA_SADDR = u32SrcAddr;
sahilmgandhi 18:6a4db94011d3 316 CRPT->SHA_DMACNT = u32TransCnt;
sahilmgandhi 18:6a4db94011d3 317 }
sahilmgandhi 18:6a4db94011d3 318
sahilmgandhi 18:6a4db94011d3 319 /**
sahilmgandhi 18:6a4db94011d3 320 * @brief Read the SHA digest.
sahilmgandhi 18:6a4db94011d3 321 * @param[out] u32Digest The SHA encrypt output digest.
sahilmgandhi 18:6a4db94011d3 322 * @return None
sahilmgandhi 18:6a4db94011d3 323 */
sahilmgandhi 18:6a4db94011d3 324 void SHA_Read(uint32_t u32Digest[])
sahilmgandhi 18:6a4db94011d3 325 {
sahilmgandhi 18:6a4db94011d3 326 uint32_t i, wcnt;
sahilmgandhi 18:6a4db94011d3 327
sahilmgandhi 18:6a4db94011d3 328 i = (CRPT->SHA_CTL & CRPT_SHA_CTL_OPMODE_Msk) >> CRPT_SHA_CTL_OPMODE_Pos;
sahilmgandhi 18:6a4db94011d3 329 if (i == SHA_MODE_SHA1)
sahilmgandhi 18:6a4db94011d3 330 wcnt = 5;
sahilmgandhi 18:6a4db94011d3 331 else if (i == SHA_MODE_SHA224)
sahilmgandhi 18:6a4db94011d3 332 wcnt = 7;
sahilmgandhi 18:6a4db94011d3 333 else
sahilmgandhi 18:6a4db94011d3 334 wcnt = 8;
sahilmgandhi 18:6a4db94011d3 335
sahilmgandhi 18:6a4db94011d3 336 for (i = 0; i < wcnt; i++)
sahilmgandhi 18:6a4db94011d3 337 u32Digest[i] = *(uint32_t *)((uint32_t)&(CRPT->SHA_DGST0) + (i * 4));
sahilmgandhi 18:6a4db94011d3 338 }
sahilmgandhi 18:6a4db94011d3 339
sahilmgandhi 18:6a4db94011d3 340
sahilmgandhi 18:6a4db94011d3 341 /*@}*/ /* end of group NUC472_442_CRYPTO_EXPORTED_FUNCTIONS */
sahilmgandhi 18:6a4db94011d3 342
sahilmgandhi 18:6a4db94011d3 343 /*@}*/ /* end of group NUC472_442_CRYPTO_Driver */
sahilmgandhi 18:6a4db94011d3 344
sahilmgandhi 18:6a4db94011d3 345 /*@}*/ /* end of group NUC472_442_Device_Driver */
sahilmgandhi 18:6a4db94011d3 346
sahilmgandhi 18:6a4db94011d3 347 /*** (C) COPYRIGHT 2013 Nuvoton Technology Corp. ***/
sahilmgandhi 18:6a4db94011d3 348