2.1.2 Functions

drv_puf_result_t DRV_PUF_Initialize (drv_puf_init_t *const pufInitConfig)

Initializes the PUF driver.

drv_puf_result_t DRV_PUF_Start (const drv_puf_start_t *const pufStartConfig)

Starts the PUF driver.

drv_puf_result_t DRV_PUF_Enable (void)

Enables the PUF clock.

drv_puf_result_t DRV_PUF_Disable (void)

Disables the PUF clock and holds in reset.

drv_puf_result_t DRV_PUF_SoftReset (void)

Software resets registers and internal state of PUF.

drv_puf_result_t DRV_PUF_SramPwrSwitchEnable (uint32_t onTime)

Enables SRAM Power Switch.

drv_puf_result_t DRV_PUF_SramPwrSwitchDisable (uint32_t offTime)

Disables SRAM Power Switch.

drv_puf_result_t DRV_PUF_PrivilegedAccessEnable (void)

Enables the PUF Privileged Access mode.

drv_puf_result_t DRV_PUF_PrivilegedAccessDisable (void)

Disables the PUF Privileged Access mode.

drv_puf_result_t DRV_PUF_RestrictContext (uint8_t ctxNum, uint32_t ctxVal)

Restricts the PUF user context.

drv_puf_result_t DRV_PUF_DisableCommand (uint32_t cmdMask)

Disables the PUF commands.

drv_puf_result_t DRV_PUF_CheckDisableCommand (uint32_t *cmdMask)

Checks which commands have been disabled.

bool DRV_PUF_IsBusy (void)

Checks if PUF is busy.

drv_puf_result_t DRV_PUF_ClearKey (void)

Clears the PUF Key.

drv_puf_result_t DRV_PUF_EnrollCmd (uint8_t *const activationCode, uint8_t *pufScore)

Performs the Enroll command.

drv_puf_result_t DRV_PUF_StartCmd (const uint8_t *const activationCode, uint8_t *pufScore)

Performs the Start command.

drv_puf_result_t DRV_PUF_ReconstructCmd (const uint8_t *const activationCode, uint8_t *pufScore)

Performs the Reconstruct command.

drv_puf_result_t DRV_PUF_StopCmd (void)

Performs the Stop command.

drv_puf_result_t DRV_PUF_CreateUserContext0 (drv_puf_key_index_t keyIndex, uint32_t userContext0, uint32_t *combinedUserContext0)

Creates the user context 0 for a key operation when the PUF key index is provided.

drv_puf_result_t DRV_PUF_GetKeyCmd (uint16_t keyLenBits, drv_puf_key_scope_t keyScopeStarted, drv_puf_key_scope_t keyScopeEnrolled, uint32_t userContext0, uint32_t userContext1, drv_puf_data_destination_t keyDest, uint8_t *key)

Performs the Get Key command.

drv_puf_result_t DRV_PUF_WrapGeneratedRandomCmd (uint16_t keyLenBits, drv_puf_key_scope_t keyScopeStarted, drv_puf_key_scope_t keyScopeEnrolled, uint32_t userContext0, uint32_t userContext1, uint8_t *keyCode)

Performs the Wrap Generated Random command.

drv_puf_result_t DRV_PUF_WrapCmd (uint16_t keyLenBits, drv_puf_key_scope_t keyScopeStarted, drv_puf_key_scope_t keyScopeEnrolled, uint32_t userContext0, uint32_t userContext1, const uint8_t *key, uint8_t *keyCode)

Performs the Wrap command.

drv_puf_result_t DRV_PUF_UnwrapCmd (const uint8_t *keyCode, drv_puf_data_destination_t keyDest, uint8_t *key)

Performs the Unwrap command.

drv_puf_result_t DRV_PUF_GenerateRandomCmd (uint16_t rndDataLenBits, drv_puf_data_destination_t rndDataDest, uint8_t *rndData)

Performs the Generate Random command.

drv_puf_result_t DRV_PUF_TestMemoryCmd (void)

Performs the Test Memory command.

drv_puf_result_t DRV_PUF_TestPufCmd (uint8_t *pufScore)

Performs the Test PUF command.

drv_puf_result_t DRV_PUF_Zeroize (void)

Performs the Zeroize command.

drv_puf_result_t DRV_PUF_Bist (void)

Performs the BIST command.