Module blob 

Construction of the 128-byte configuration zone blob.

Every field, every bit, every value here matches docs/config-zone-layout.md section by section. If you change anything in this file, update the doc and re-run the tests.

Constants

CHIP_MODE 🔒

Value of byte 19, ChipMode.

CONFIG_ZONE_SIZE 🔒

Total size of the configuration zone.

COUNT_MATCH 🔒

Value of byte 18, CountMatch. The CountMatch feature is unused, the byte stays at zero.

I2C_ADDRESS_BYTE 🔒

I2C address byte stored at offset 16.

KEY_CFG_DATA_GENERIC 🔒

KeyConfig for generic data slots.

KEY_CFG_ECC_LOCKABLE_OFF 🔒

KeyConfig for ECC P-256 slots with Lockable = 0.

KEY_CFG_ECC_LOCKABLE_ON 🔒

KeyConfig for ECC P-256 slots with Lockable = 1.

LOCK_CONFIG_UNLOCKED 🔒

Value placed at the LockConfig (byte 87) field. 0x55 means the configuration zone is unlocked. The chip overwrites this with 0x00 when the Lock(config) command is issued.

LOCK_VALUE_UNLOCKED 🔒

Value placed at the LockValue (byte 86) field. 0x55 means the data zone is unlocked. The chip overwrites this with 0x00 when the Lock(data) command is issued.

RESERVED2 🔒

Value of byte 17. Required to be zero by the ATECC608B reference.

SLOT_CFG_DATA_IO_KEY 🔒

SlotConfig for the I/O Protection master key (slot 8).

SLOT_CFG_DATA_PIN_PUK 🔒

SlotConfig for the PIN hash slot (slot 5) and the PUK hash slot (slot 6).

SLOT_CFG_ECC_GENKEY_ONLY 🔒

SlotConfig for ECC P-256 slots that allow GenKey but not PrivWrite.

SLOT_CFG_ECC_GENKEY_OR_IMPORT 🔒

SlotConfig for ECC P-256 slots that allow both GenKey and encrypted PrivWrite import.

Functions

build 🔒

Build the full 128-byte configuration zone blob, including factory-area placeholders at bytes 0-15.

key_config_for 🔒

Return the KeyConfig value for a given slot index.

slot_config_for 🔒

Return the SlotConfig value for a given slot index.