/**************************************************************************//** * @file nu_keystore.h * @version V3.00 * @brief Key Store Driver Header * * @copyright SPDX-License-Identifier: Apache-2.0 * @copyright Copyright (C) 2020 Nuvoton Technology Corp. All rights reserved. *****************************************************************************/ #ifndef __NU_KEYSTORE_H__ #define __NU_KEYSTORE_H__ #ifdef __cplusplus extern "C" { #endif /** @addtogroup Standard_Driver Standard Driver @{ */ /** @addtogroup KS_Driver Key Store Driver @{ */ /** @addtogroup KS_EXPORTED_CONSTANTS Key Store Exported Constants @{ */ #define KS_TOMETAKEY(x) (((uint32_t)(x) << KS_METADATA_NUMBER_Pos) & KS_METADATA_NUMBER_Msk) #define KS_TOKEYIDX(x) (((uint32_t)(x) & KS_METADATA_NUMBER_Msk) >> KS_METADATA_NUMBER_Pos) typedef enum KSMEM { KS_SRAM = 0, /*!< Volatile Memory */ KS_FLASH = 1, /*!< Non-volatile Memory */ KS_OTP = 2 /*!< One-Time Programming Memory */ } KS_MEM_Type; #define KS_OP_READ (0 << KS_CTL_OPMODE_Pos) #define KS_OP_WRITE (1 << KS_CTL_OPMODE_Pos) #define KS_OP_ERASE (2 << KS_CTL_OPMODE_Pos) #define KS_OP_ERASE_ALL (3 << KS_CTL_OPMODE_Pos) #define KS_OP_REVOKE (4 << KS_CTL_OPMODE_Pos) #define KS_OP_REMAN (5 << KS_CTL_OPMODE_Pos) #define KS_OWNER_AES (0ul) #define KS_OWNER_HMAC (1ul) #define KS_OWNER_RSA_EXP (2ul) #define KS_OWNER_RSA_MID (3ul) #define KS_OWNER_ECC (4ul) #define KS_OWNER_CPU (5ul) #define KS_META_AES (0ul << KS_METADATA_OWNER_Pos) /*!< AES Access Only */ #define KS_META_HMAC (1ul << KS_METADATA_OWNER_Pos) /*!< HMAC Access Only */ #define KS_META_RSA_EXP (2ul << KS_METADATA_OWNER_Pos) /*!< RSA_EXP Access Only */ #define KS_META_RSA_MID (3ul << KS_METADATA_OWNER_Pos) /*!< RSA_MID Access Only */ #define KS_META_ECC (4ul << KS_METADATA_OWNER_Pos) /*!< ECC Access Only */ #define KS_META_CPU (5ul << KS_METADATA_OWNER_Pos) /*!< CPU Access Only */ #define KS_META_128 ( 0ul << KS_METADATA_SIZE_Pos) /*!< Key size 128 bits */ #define KS_META_163 ( 1ul << KS_METADATA_SIZE_Pos) /*!< Key size 163 bits */ #define KS_META_192 ( 2ul << KS_METADATA_SIZE_Pos) /*!< Key size 192 bits */ #define KS_META_224 ( 3ul << KS_METADATA_SIZE_Pos) /*!< Key size 224 bits */ #define KS_META_233 ( 4ul << KS_METADATA_SIZE_Pos) /*!< Key size 233 bits */ #define KS_META_255 ( 5ul << KS_METADATA_SIZE_Pos) /*!< Key size 255 bits */ #define KS_META_256 ( 6ul << KS_METADATA_SIZE_Pos) /*!< Key size 256 bits */ #define KS_META_283 ( 7ul << KS_METADATA_SIZE_Pos) /*!< Key size 283 bits */ #define KS_META_384 ( 8ul << KS_METADATA_SIZE_Pos) /*!< Key size 384 bits */ #define KS_META_409 ( 9ul << KS_METADATA_SIZE_Pos) /*!< Key size 409 bits */ #define KS_META_512 (10ul << KS_METADATA_SIZE_Pos) /*!< Key size 512 bits */ #define KS_META_521 (11ul << KS_METADATA_SIZE_Pos) /*!< Key size 521 bits */ #define KS_META_571 (12ul << KS_METADATA_SIZE_Pos) /*!< Key size 571 bits */ #define KS_META_1024 (16ul << KS_METADATA_SIZE_Pos) /*!< Key size 1024 bits */ #define KS_META_1536 (17ul << KS_METADATA_SIZE_Pos) /*!< Key size 1024 bits */ #define KS_META_2048 (18ul << KS_METADATA_SIZE_Pos) /*!< Key size 2048 bits */ #define KS_META_3072 (19ul << KS_METADATA_SIZE_Pos) /*!< Key size 1024 bits */ #define KS_META_4096 (20ul << KS_METADATA_SIZE_Pos) /*!< Key size 4096 bits */ #define KS_META_BOOT ( 1ul << KS_METADATA_BS_Pos) /*!< Key only used for boot ROM only */ #define KS_META_READABLE (1ul << KS_METADATA_READABLE_Pos) /*!< Allow the key to be read by software */ #define KS_META_PRIV (1ul << KS_METADATA_PRIV_Pos) /*!< Privilege key */ #define KS_META_NONPRIV (0ul << KS_METADATA_PRIV_Pos) /*!< Non-privilege key */ #define KS_META_SECURE (1ul << KS_METADATA_SEC_Pos) /*!< Secure key */ #define KS_META_NONSECURE (0ul << KS_METADATA_SEC_Pos) /*!< Non-secure key */ /** * @brief Enable scramble function * @details This function is used to enable scramle function of Key Store. */ #define KS_SCRAMBLING() KS->CTL |= KS_CTL_SCMB_Msk /**@}*/ /* end of group KS_EXPORTED_CONSTANTS */ /** @addtogroup KS_EXPORTED_FUNCTIONS Key Store Exported Functions @{ */ void KS_Open(void); int32_t KS_Read(KS_MEM_Type type, int32_t i32KeyIdx, uint32_t au32Key[], uint32_t u32WordCnt); int32_t KS_Write(KS_MEM_Type eType, uint32_t u32Meta, uint32_t au32Key[]); int32_t KS_WriteOTP(int32_t i32KeyIdx, uint32_t u32Meta, uint32_t au32Key[]); int32_t KS_EraseKey(int32_t i32KeyIdx); int32_t KS_EraseAll(KS_MEM_Type eType); int32_t KS_RevokeKey(KS_MEM_Type eType, int32_t i32KeyIdx); uint32_t KS_GetRemainSize(KS_MEM_Type eType); int32_t KS_ToggleSRAM(void); uint32_t KS_GetKeyWordCnt(uint32_t u32Meta); uint32_t KS_GetRemainKeyCount(KS_MEM_Type mem); /**@}*/ /* end of group KS_EXPORTED_FUNCTIONS */ /**@}*/ /* end of group KS_Driver */ /**@}*/ /* end of group Standard_Driver */ #ifdef __cplusplus } #endif #endif /* __NU_KEYSTORE_H__ */