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Diff: targets/TARGET_NUVOTON/TARGET_NUC472/device/StdDriver/nuc472_crypto.c
- Revision:
- 153:9398a535854b
- Parent:
- 152:9a67f0b066fc
--- a/targets/TARGET_NUVOTON/TARGET_NUC472/device/StdDriver/nuc472_crypto.c Thu Dec 15 11:48:27 2016 +0000 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,348 +0,0 @@ -/**************************************************************************//** - * @file crypto.c - * @version V1.10 - * $Revision: 11 $ - * $Date: 14/10/03 1:54p $ - * @brief Cryptographic Accelerator driver source file - * - * @note - * Copyright (C) 2014 Nuvoton Technology Corp. All rights reserved. -*****************************************************************************/ - -#include <string.h> -#include "NUC472_442.h" - -/** @addtogroup NUC472_442_Device_Driver NUC472/NUC442 Device Driver - @{ -*/ - -/** @addtogroup NUC472_442_CRYPTO_Driver CRYPTO Driver - @{ -*/ - - -/** @addtogroup NUC472_442_CRYPTO_EXPORTED_FUNCTIONS CRYPTO Exported Functions - @{ -*/ - -/// @cond HIDDEN_SYMBOLS - -static uint32_t g_AES_CTL[4]; -static uint32_t g_TDES_CTL[4]; - -/// @endcond HIDDEN_SYMBOLS - -/** - * @brief Open PRNG function - * @param[in] u32KeySize is PRNG key size, including: - * - \ref PRNG_KEY_SIZE_64 - * - \ref PRNG_KEY_SIZE_128 - * - \ref PRNG_KEY_SIZE_192 - * - \ref PRNG_KEY_SIZE_256 - * @param[in] u32SeedReload is PRNG seed reload or not, including: - * - \ref PRNG_SEED_CONT - * - \ref PRNG_SEED_RELOAD - * @param[in] u32Seed The new seed. Only valid when u32SeedReload is PRNG_SEED_RELOAD. - * @return None - */ -void PRNG_Open(uint32_t u32KeySize, uint32_t u32SeedReload, uint32_t u32Seed) -{ - if (u32SeedReload) - CRPT->PRNG_SEED = u32Seed; - - CRPT->PRNG_CTL = (u32KeySize << CRPT_PRNG_CTL_KEYSZ_Pos) | - (u32SeedReload << CRPT_PRNG_CTL_SEEDRLD_Pos); -} - -/** - * @brief Start to generate one PRNG key. - * @param None - * @return None - */ -void PRNG_Start(void) -{ - CRPT->PRNG_CTL |= CRPT_PRNG_CTL_START_Msk; -} - -/** - * @brief Read the PRNG key. - * @param[out] u32RandKey The key buffer to store newly generated PRNG key. - * @return None - */ -void PRNG_Read(uint32_t u32RandKey[]) -{ - int i, wcnt; - - wcnt = (((CRPT->PRNG_CTL & CRPT_PRNG_CTL_KEYSZ_Msk)>>CRPT_PRNG_CTL_KEYSZ_Pos)+1)*2; - for (i = 0; i < wcnt; i++) - u32RandKey[i] = *(uint32_t *)((uint32_t)&(CRPT->PRNG_KEY0) + (i * 4)); -} - - -/** - * @brief Open AES encrypt/decrypt function. - * @param[in] u32Channel AES channel. Must be 0~3. - * @param[in] u32EncDec 1: AES encode; 0: AES decode - * @param[in] u32OpMode AES operation mode, including: - * - \ref AES_MODE_ECB - * - \ref AES_MODE_CBC - * - \ref AES_MODE_CFB - * - \ref AES_MODE_OFB - * - \ref AES_MODE_CTR - * - \ref AES_MODE_CBC_CS1 - * - \ref AES_MODE_CBC_CS2 - * - \ref AES_MODE_CBC_CS3 - * @param[in] u32KeySize is AES key size, including: - * - \ref AES_KEY_SIZE_128 - * - \ref AES_KEY_SIZE_192 - * - \ref AES_KEY_SIZE_256 - * @param[in] u32SwapType is AES input/output data swap control, including: - * - \ref AES_NO_SWAP - * - \ref AES_OUT_SWAP - * - \ref AES_IN_SWAP - * - \ref AES_IN_OUT_SWAP - * @return None - */ -void AES_Open(uint32_t u32Channel, uint32_t u32EncDec, - uint32_t u32OpMode, uint32_t u32KeySize, uint32_t u32SwapType) -{ - CRPT->AES_CTL = (u32Channel << CRPT_AES_CTL_CHANNEL_Pos) | - (u32EncDec << CRPT_AES_CTL_ENCRPT_Pos) | - (u32OpMode << CRPT_AES_CTL_OPMODE_Pos) | - (u32KeySize << CRPT_AES_CTL_KEYSZ_Pos) | - (u32SwapType << CRPT_AES_CTL_OUTSWAP_Pos); - g_AES_CTL[u32Channel] = CRPT->AES_CTL; -} - -/** - * @brief Start AES encrypt/decrypt - * @param[in] u32Channel AES channel. Must be 0~3. - * @param[in] u32DMAMode AES DMA control, including: - * - \ref CRYPTO_DMA_ONE_SHOT One shop AES encrypt/decrypt. - * - \ref CRYPTO_DMA_CONTINUE Continuous AES encrypt/decrypt. - * - \ref CRYPTO_DMA_LAST Last AES encrypt/decrypt of a series of AES_Start. - * @return None - */ -void AES_Start(int32_t u32Channel, uint32_t u32DMAMode) -{ - CRPT->AES_CTL = g_AES_CTL[u32Channel]; - CRPT->AES_CTL |= CRPT_AES_CTL_START_Msk | (u32DMAMode << CRPT_AES_CTL_DMALAST_Pos); -} - -/** - * @brief Set AES keys - * @param[in] u32Channel AES channel. Must be 0~3. - * @param[in] au32Keys An word array contains AES keys. - * @param[in] u32KeySize is AES key size, including: - * - \ref AES_KEY_SIZE_128 - * - \ref AES_KEY_SIZE_192 - * - \ref AES_KEY_SIZE_256 - * @return None - */ -void AES_SetKey(uint32_t u32Channel, uint32_t au32Keys[], uint32_t u32KeySize) -{ - int i, wcnt; - uint32_t *key_ptr; - - key_ptr = (uint32_t *)((uint32_t)&CRPT->AES0_KEY0 + (u32Channel * 0x3C)); - wcnt = 4 + u32KeySize*2; - for (i = 0; i < wcnt; i++, key_ptr++) - *key_ptr = au32Keys[i]; -} - -/** - * @brief Set AES initial vectors - * @param[in] u32Channel AES channel. Must be 0~3. - * @param[in] au32IV A four entry word array contains AES initial vectors. - * @return None - */ -void AES_SetInitVect(uint32_t u32Channel, uint32_t au32IV[]) -{ - int i; - uint32_t *key_ptr; - - key_ptr = (uint32_t *)((uint32_t)&CRPT->AES0_IV0 + (u32Channel * 0x3C)); - for (i = 0; i < 4; i++, key_ptr++) - *key_ptr = au32IV[i]; -} - -/** - * @brief Set AES DMA transfer configuration. - * @param[in] u32Channel AES channel. Must be 0~3. - * @param[in] u32SrcAddr AES DMA source address - * @param[in] u32DstAddr AES DMA destination address - * @param[in] u32TransCnt AES DMA transfer byte count - * @return None - */ -void AES_SetDMATransfer(uint32_t u32Channel, uint32_t u32SrcAddr, - uint32_t u32DstAddr, uint32_t u32TransCnt) -{ - *(uint32_t *)((uint32_t)&CRPT->AES0_SADDR + (u32Channel * 0x3C)) = u32SrcAddr; - *(uint32_t *)((uint32_t)&CRPT->AES0_DADDR + (u32Channel * 0x3C)) = u32DstAddr; - *(uint32_t *)((uint32_t)&CRPT->AES0_CNT + (u32Channel * 0x3C)) = u32TransCnt; -} - -/** - * @brief Open TDES encrypt/decrypt function. - * @param[in] u32Channel TDES channel. Must be 0~3. - * @param[in] u32EncDec 1: TDES encode; 0: TDES decode - * @param[in] u32OpMode TDES operation mode, including: - * - \ref TDES_MODE_ECB - * - \ref TDES_MODE_CBC - * - \ref TDES_MODE_CFB - * - \ref TDES_MODE_OFB - * - \ref TDES_MODE_CTR - * @param[in] u32SwapType is TDES input/output data swap control and word swap control, including: - * - \ref TDES_NO_SWAP - * - \ref TDES_WHL_SWAP - * - \ref TDES_OUT_SWAP - * - \ref TDES_OUT_WHL_SWAP - * - \ref TDES_IN_SWAP - * - \ref TDES_IN_WHL_SWAP - * - \ref TDES_IN_OUT_SWAP - * - \ref TDES_IN_OUT_WHL_SWAP - * @return None - */ -void TDES_Open(uint32_t u32Channel, uint32_t u32EncDec, uint32_t u32OpMode, uint32_t u32SwapType) -{ - g_TDES_CTL[u32Channel] = (u32Channel << CRPT_TDES_CTL_CHANNEL_Pos) | - (u32EncDec << CRPT_TDES_CTL_ENCRPT_Pos) | - u32OpMode | - (u32SwapType << CRPT_TDES_CTL_BLKSWAP_Pos); -} - -/** - * @brief Start TDES encrypt/decrypt - * @param[in] u32Channel TDES channel. Must be 0~3. - * @param[in] u32DMAMode TDES DMA control, including: - * - \ref CRYPTO_DMA_ONE_SHOT One shop TDES encrypt/decrypt. - * - \ref CRYPTO_DMA_CONTINUE Continuous TDES encrypt/decrypt. - * - \ref CRYPTO_DMA_LAST Last TDES encrypt/decrypt of a series of TDES_Start. - * @return None - */ -void TDES_Start(int32_t u32Channel, uint32_t u32DMAMode) -{ - g_TDES_CTL[u32Channel] |= CRPT_TDES_CTL_START_Msk | (u32DMAMode << CRPT_TDES_CTL_DMALAST_Pos); - CRPT->TDES_CTL = g_TDES_CTL[u32Channel]; -} - -/** - * @brief Set TDES keys - * @param[in] u32Channel TDES channel. Must be 0~3. - * @param[in] au8Keys The TDES keys. - * @return None - */ -void TDES_SetKey(uint32_t u32Channel, uint8_t au8Keys[3][8]) -{ - int i; - uint8_t *pu8TKey; - - pu8TKey = (uint8_t *)((uint32_t)&CRPT->TDES0_KEY1H + (0x40 * u32Channel)); - for (i = 0; i < 3; i++, pu8TKey+=8) - memcpy(pu8TKey, &au8Keys[i][0], 8); -} - -/** - * @brief Set TDES initial vectors - * @param[in] u32Channel TDES channel. Must be 0~3. - * @param[in] u32IVH TDES initial vector high word. - * @param[in] u32IVL TDES initial vector low word. - * @return None - */ -void TDES_SetInitVect(uint32_t u32Channel, uint32_t u32IVH, uint32_t u32IVL) -{ - *(uint32_t *)((uint32_t)&CRPT->TDES0_IVH + 0x40 * u32Channel) = u32IVH; - *(uint32_t *)((uint32_t)&CRPT->TDES0_IVL + 0x40 * u32Channel) = u32IVL; -} - -/** - * @brief Set TDES DMA transfer configuration. - * @param[in] u32Channel TDES channel. Must be 0~3. - * @param[in] u32SrcAddr TDES DMA source address - * @param[in] u32DstAddr TDES DMA destination address - * @param[in] u32TransCnt TDES DMA transfer byte count - * @return None - */ -void TDES_SetDMATransfer(uint32_t u32Channel, uint32_t u32SrcAddr, - uint32_t u32DstAddr, uint32_t u32TransCnt) -{ - *(uint32_t *)((uint32_t)&CRPT->TDES0_SADDR + (u32Channel * 0x40)) = u32SrcAddr; - *(uint32_t *)((uint32_t)&CRPT->TDES0_DADDR + (u32Channel * 0x40)) = u32DstAddr; - *(uint32_t *)((uint32_t)&CRPT->TDES0_CNT + (u32Channel * 0x40)) = u32TransCnt; -} - -/** - * @brief Open SHA encrypt function. - * @param[in] u32OpMode SHA operation mode, including: - * - \ref SHA_MODE_SHA1 - * - \ref SHA_MODE_SHA224 - * - \ref SHA_MODE_SHA256 - * @param[in] u32SwapType is SHA input/output data swap control, including: - * - \ref SHA_NO_SWAP - * - \ref SHA_OUT_SWAP - * - \ref SHA_IN_SWAP - * - \ref SHA_IN_OUT_SWAP - * @return None - */ -void SHA_Open(uint32_t u32OpMode, uint32_t u32SwapType) -{ - CRPT->SHA_CTL = (u32OpMode << CRPT_SHA_CTL_OPMODE_Pos) | - (u32SwapType << CRPT_SHA_CTL_OUTSWAP_Pos); -} - -/** - * @brief Start SHA encrypt - * @param[in] u32DMAMode TDES DMA control, including: - * - \ref CRYPTO_DMA_ONE_SHOT One shop SHA encrypt. - * - \ref CRYPTO_DMA_CONTINUE Continuous SHA encrypt. - * - \ref CRYPTO_DMA_LAST Last SHA encrypt of a series of SHA_Start. - * @return None - */ -void SHA_Start(uint32_t u32DMAMode) -{ - CRPT->SHA_CTL &= ~(0x7 << CRPT_SHA_CTL_DMALAST_Pos); - CRPT->SHA_CTL |= CRPT_SHA_CTL_START_Msk | (u32DMAMode << CRPT_SHA_CTL_DMALAST_Pos); -} - -/** - * @brief Set SHA DMA transfer - * @param[in] u32SrcAddr SHA DMA source address - * @param[in] u32TransCnt SHA DMA transfer byte count - * @return None - */ -void SHA_SetDMATransfer(uint32_t u32SrcAddr, uint32_t u32TransCnt) -{ - CRPT->SHA_SADDR = u32SrcAddr; - CRPT->SHA_DMACNT = u32TransCnt; -} - -/** - * @brief Read the SHA digest. - * @param[out] u32Digest The SHA encrypt output digest. - * @return None - */ -void SHA_Read(uint32_t u32Digest[]) -{ - uint32_t i, wcnt; - - i = (CRPT->SHA_CTL & CRPT_SHA_CTL_OPMODE_Msk) >> CRPT_SHA_CTL_OPMODE_Pos; - if (i == SHA_MODE_SHA1) - wcnt = 5; - else if (i == SHA_MODE_SHA224) - wcnt = 7; - else - wcnt = 8; - - for (i = 0; i < wcnt; i++) - u32Digest[i] = *(uint32_t *)((uint32_t)&(CRPT->SHA_DGST0) + (i * 4)); -} - - -/*@}*/ /* end of group NUC472_442_CRYPTO_EXPORTED_FUNCTIONS */ - -/*@}*/ /* end of group NUC472_442_CRYPTO_Driver */ - -/*@}*/ /* end of group NUC472_442_Device_Driver */ - -/*** (C) COPYRIGHT 2013 Nuvoton Technology Corp. ***/ -