HAL TAMP Use Cases

Initialization Sequence

Passive Tamper Workflow

Functions called:

• HAL_TAMP_PASSIVE_SetConfig()

• HAL_TAMP_PASSIVE_SetConfigTampers()

• HAL_TAMP_PASSIVE_Start()

• HAL_TAMP_TamperIRQHandler()

• HAL_TAMP_PASSIVE_PollForEvent()

• HAL_TAMP_PASSIVE_Stop()

Internal Tamper Handling

Functions called:

• HAL_TAMP_INTERNAL_SetConfigTampers()

• HAL_TAMP_INTERNAL_Start()

• HAL_TAMP_TamperIRQHandler()

• HAL_TAMP_INTERNAL_PollForEvent()

• HAL_TAMP_INTERNAL_Stop()

Active Tamper Sequence

Functions called:

• HAL_TAMP_ACTIVE_SetConfig()

• HAL_TAMP_ACTIVE_SetConfigTampers()

• HAL_TAMP_ACTIVE_Start()

• HAL_TAMP_ACTIVE_SetSeed()

• HAL_TAMP_TamperIRQHandler()

• HAL_TAMP_ACTIVE_PollForEvent()

Backup Registers Usage Flow

Functions called:

• HAL_TAMP_WriteBackupRegisterValue()

• HAL_TAMP_ReadBackupRegisterValue()

Device Secrets Management

Functions called:

• HAL_TAMP_UnblockDeviceSecretsAccess()

• HAL_TAMP_BlockDeviceSecretsAccess()

• HAL_TAMP_IsBlockedDeviceSecretsAccess()

• HAL_TAMP_EraseDeviceSecrets()

Monotonic Counter Operation

Functions called:

• HAL_TAMP_MONOTONIC_IncrementCounter()

• HAL_TAMP_MONOTONIC_GetCounter()

Resource Protection Sequence

Functions called:

• HAL_TAMP_EnableResourceProtection()

• HAL_TAMP_DisableResourceProtection()

• HAL_TAMP_IsEnabledResourceProtection()