Deprecated Functions#

SE_initOTP#

SE_Response_t SE_initOTP (SE_OTPInit_t * otp_init)

Initialize SE one-time-programmable (OTP) configuration.

Configuration is performed by setting the desired options in the SE_OTPInit_t structure.

This function can be used to enable secure boot, to configure flash page locking, and to enable anti-rollback protection when using the SE to perform an application upgrade, typically a Gecko bootloader upgrade.

Before secure boot can be enabled, the public key used for secure boot verification must be uploaded using SE_initPubkey().

Warnings

• This command can only be executed once per device! When the configuration has been programmed it is not possible to update any of the fields.

Returns

• One of the SE_RESPONSE return codes.

Return values

• SE_RESPONSE_OK: when the command was executed successfully

SE_initPubkey#

SE_Response_t SE_initPubkey (uint32_t key_type, void * pubkey, uint32_t numBytes, bool signature)

Init pubkey or pubkey signature.

Initialize public key stored in the SE, or its corresponding signature. The command can be used to write:

• SE_KEY_TYPE_BOOT – public key used to perform secure boot

• SE_KEY_TYPE_AUTH – public key used to perform secure debug

Note

• These keys can not be overwritten, so this command can only be issued once per key per part.

Returns

• One of the SE_RESPONSE return codes.

Return values

• SE_RESPONSE_OK: when the command was executed successfully

• SE_RESPONSE_TEST_FAILED: when the pubkey is not set

• SE_RESPONSE_INVALID_PARAMETER: when an invalid type is passed

SE_writeUserData#

SE_Response_t SE_writeUserData (uint32_t offset, void * data, uint32_t numBytes)

Writes data to User Data section in MTP. Write data must be aligned to word size and contain a number of bytes that is divisable by four.

Note

• It is recommended to erase the flash page before performing a write.

Returns

• One of the SE_RESPONSE return codes.

Return values

• SE_RESPONSE_OK: when the command was executed successfully or a signature was successfully verified,

• SE_RESPONSE_INVALID_COMMAND: when the command ID was not recognized,

• SE_RESPONSE_AUTHORIZATION_ERROR: when the command is not authorized,

• SE_RESPONSE_INVALID_SIGNATURE: when signature verification failed,

• SE_RESPONSE_BUS_ERROR: when a bus error was thrown during the command, e.g. because of conflicting Secure/Non-Secure memory accesses,

• SE_RESPONSE_CRYPTO_ERROR: on an internal SE failure, or

• SE_RESPONSE_INVALID_PARAMETER: when an invalid parameter was passed

SE_eraseUserData#

SE_Response_t SE_eraseUserData (void )

Erases User Data section in MTP.

Returns

• One of the SE_RESPONSE return codes.

Return values

• SE_RESPONSE_OK: when the command was executed successfully or a signature was successfully verified,

• SE_RESPONSE_INVALID_COMMAND: when the command ID was not recognized,

• SE_RESPONSE_AUTHORIZATION_ERROR: when the command is not authorized,

• SE_RESPONSE_INVALID_SIGNATURE: when signature verification failed,

• SE_RESPONSE_BUS_ERROR: when a bus error was thrown during the command, e.g. because of conflicting Secure/Non-Secure memory accesses,

• SE_RESPONSE_CRYPTO_ERROR: on an internal SE failure, or

• SE_RESPONSE_INVALID_PARAMETER: when an invalid parameter was passed

SE_readPubkey#

SE_Response_t SE_readPubkey (uint32_t key_type, void * pubkey, uint32_t numBytes, bool signature)

Read pubkey or pubkey signature.

Read out a public key stored in the SE, or its signature. The command can be used to read:

• SE_KEY_TYPE_BOOT

• SE_KEY_TYPE_AUTH

Returns

• One of the SE_RESPONSE return codes.

Return values

• SE_RESPONSE_OK: when the command was executed successfully

• SE_RESPONSE_TEST_FAILED: when the pubkey is not set

• SE_RESPONSE_INVALID_PARAMETER: when an invalid type is passed

SE_debugLockStatus#

SE_Response_t SE_debugLockStatus (SE_DebugStatus_t * status)

Returns the current debug lock configuration. Returns

• One of the SE_RESPONSE return codes.

Return values

• SE_RESPONSE_OK: when the command was executed successfully.

• SE_RESPONSE_INTERNAL_ERROR: if there are configuration errors.

SE_debugLockApply#

SE_Response_t SE_debugLockApply (void )

Enables the debug lock for the part.

The debug port will be closed and the only way to open it is through device erase (if enabled) or temporarily through secure debug unlock (if enabled).

Returns

• One of the SE_RESPONSE return codes.

Return values

• SE_RESPONSE_OK: when the command was executed successfully.

• SE_RESPONSE_INTERNAL_ERROR: there was a problem locking the debug port.

SE_debugSecureEnable#

SE_Response_t SE_debugSecureEnable (void )

Enables the secure debug functionality.

Enables the secure debug functionality. This functionality makes it possible to open a locked debug port by signing a cryptographic challenge and using the debug command interface (DCI).

This command can only be executed before the debug port is locked, and after a secure debug public key has been installed in the SE using SE_initPubkey() or the corresponding DCI command.

Returns

• One of the SE_RESPONSE return codes.

Return values

• SE_RESPONSE_OK: when the command was executed successfully.

• SE_RESPONSE_INVALID_COMMAND: if debug port is locked.

• SE_RESPONSE_INVALID_PARAMETER: if secure debug certificates are missing.

• SE_RESPONSE_INTERNAL_ERROR: if there was a problem during execution.

SE_debugSecureDisable#

SE_Response_t SE_debugSecureDisable (void )

Disables the secure debug functionality.

Disables the secure debug functionality that can be used to open a locked debug port. Returns

• One of the SE_RESPONSE return codes.

Return values

• SE_RESPONSE_OK: when the command was executed successfully.

• SE_RESPONSE_INTERNAL_ERROR: if there was a problem during execution.

SE_deviceEraseDisable#

SE_Response_t SE_deviceEraseDisable (void )

Disabled device erase functionality.

This command disables the device erase command. It does not lock the debug interface to the part, but it is a permanent action for the part. If device erase is disabled and the device is debug locked, there is no way to permanently unlock the part. If secure debug unlock is enabled, secure debug unlock can still be used to temporarily open the debug port.

Warnings

• This command permanently disables the device erase functionality!

Returns

• One of the SE_RESPONSE return codes.

Return values

• SE_RESPONSE_OK: when the command was executed successfully.

• SE_RESPONSE_INTERNAL_ERROR: if there was a problem during execution.

SE_deviceErase#

SE_Response_t SE_deviceErase (void )

Performs a device mass erase and debug unlock.

Performs a device mass erase and resets the debug configuration to its initial unlocked state. Only available before SE_deviceEraseDisable or the corresponding DCI command has been executed.

Note

• This command clears and verifies the complete flash and ram of the system, excluding the user data pages and one-time programmable commissioning information in the secure element.

Returns

• One of the SE_RESPONSE return codes.

Return values

• SE_RESPONSE_OK: when the command was executed successfully.

• SE_RESPONSE_INVALID_COMMAND: if device erase is disabled.

• SE_RESPONSE_INTERNAL_ERROR: if there was a problem during execution.

SE_getStatus#

SE_Response_t SE_getStatus (SE_Status_t * status)

Returns the current boot status, versions and system configuration.

Returns

• One of the SE_RESPONSE return codes.

Return values

• SE_RESPONSE_OK: upon command completion. Errors are encoded in the different parts of the returned status object.

SE_serialNumber#

SE_Response_t SE_serialNumber (void * serial)

Read the serial number of the SE module.

Returns

• One of the SE_Response_t return codes.

Return values

• SE_RESPONSE_OK: when serial number is returned successfully,

• SE_RESPONSE_INTERNAL_ERROR: if not.