def reset() -> None:
"""
Wipes storage but keeps the device id unchanged.
"""
device_id = device.get_device_id()
wipe()
common.set(common.APP_DEVICE, device.DEVICE_ID, device_id.encode(), public=True)
def set_homescreen(homescreen: bytes) -> None:
if len(homescreen) > HOMESCREEN_MAXSIZE:
raise ValueError # homescreen too large
if homescreen[:8] == b"TOIf\x90\x00\x90\x00" or homescreen == b"":
common.set(_NAMESPACE, _HOMESCREEN, homescreen, public=True)
else:
raise ValueError # invalid homescreen
def load_settings(
label: str = None,
use_passphrase: bool = None,
homescreen: bytes = None,
passphrase_source: int = None,
display_rotation: int = None,
) -> None:
if label is not None:
common.set(_NAMESPACE, _LABEL, label.encode(), True) # public
if use_passphrase is not None:
common.set_bool(_NAMESPACE, _USE_PASSPHRASE, use_passphrase)
if homescreen is not None:
if homescreen[:8] == b"TOIf\x90\x00\x90\x00":
if len(homescreen) <= HOMESCREEN_MAXSIZE:
common.set(_NAMESPACE, _HOMESCREEN, homescreen, True) # public
else:
common.set(_NAMESPACE, _HOMESCREEN, b"", True) # public
if passphrase_source is not None:
if passphrase_source in (0, 1, 2):
common.set(_NAMESPACE, _PASSPHRASE_SOURCE,
bytes([passphrase_source]))
if display_rotation is not None:
if display_rotation not in (0, 90, 180, 270):
raise ValueError("Unsupported display rotation degrees: %d" %
display_rotation)
else:
common.set(_NAMESPACE, _ROTATION,
display_rotation.to_bytes(2, "big"), True) # public
def set_flags(flags: int) -> None:
b = common.get(_NAMESPACE, _FLAGS)
if b is None:
i = 0
else:
i = int.from_bytes(b, "big")
flags = (flags | i) & 0xFFFF_FFFF
if flags != i:
common.set(_NAMESPACE, _FLAGS, flags.to_bytes(4, "big"))
def store_mnemonic_secret(
secret: bytes,
backup_type: EnumTypeBackupType,
needs_backup: bool = False,
no_backup: bool = False,
) -> None:
set_version(common.STORAGE_VERSION_CURRENT)
common.set(_NAMESPACE, _MNEMONIC_SECRET, secret)
common.set_uint8(_NAMESPACE, _BACKUP_TYPE, backup_type)
common.set_true_or_delete(_NAMESPACE, _NO_BACKUP, no_backup)
if not no_backup:
common.set_true_or_delete(_NAMESPACE, _NEEDS_BACKUP, needs_backup)
def load_settings(
label: str = None,
use_passphrase: bool = None,
homescreen: bytes = None,
passphrase_always_on_device: bool = None,
display_rotation: int = None,
autolock_delay_ms: int = None,
) -> None:
if use_passphrase is False:
passphrase_always_on_device = False
if label is not None:
common.set(_NAMESPACE, _LABEL, label.encode(), True) # public
if use_passphrase is not None:
common.set_bool(_NAMESPACE, _USE_PASSPHRASE, use_passphrase)
if homescreen is not None:
if homescreen[:8] == b"TOIf\x90\x00\x90\x00":
if len(homescreen) <= HOMESCREEN_MAXSIZE:
common.set(_NAMESPACE, _HOMESCREEN, homescreen, True) # public
else:
common.set(_NAMESPACE, _HOMESCREEN, b"", True) # public
if passphrase_always_on_device is not None:
common.set_bool(_NAMESPACE, _PASSPHRASE_ALWAYS_ON_DEVICE,
passphrase_always_on_device)
if display_rotation is not None:
if display_rotation not in (0, 90, 180, 270):
raise ValueError("Unsupported display rotation degrees: %d" %
display_rotation)
else:
common.set(_NAMESPACE, _ROTATION,
display_rotation.to_bytes(2, "big"), True) # public
if autolock_delay_ms is not None:
set_autolock_delay_ms(autolock_delay_ms)
def set_slip39_remaining_shares(shares_remaining: int, group_index: int) -> None:
"""
We store the remaining shares as a bytearray of length group_count.
Each byte represents share remaining for group of that group_index.
0x10 (16) was chosen as the default value because it's the max
share count for a group.
"""
_require_progress()
remaining = common.get(_NAMESPACE, _REMAINING)
group_count = get_slip39_group_count()
if not group_count:
raise RuntimeError
if remaining is None:
remaining = bytearray([slip39.MAX_SHARE_COUNT] * group_count)
remaining = bytearray(remaining)
remaining[group_index] = shares_remaining
common.set(_NAMESPACE, _REMAINING, remaining)
def set_sd_salt_auth_key(auth_key: bytes | None) -> None:
"""
The key used to check the authenticity of the SD card salt.
"""
if auth_key is not None:
if len(auth_key) != SD_SALT_AUTH_KEY_LEN_BYTES:
raise ValueError
return common.set(_NAMESPACE, _SD_SALT_AUTH_KEY, auth_key, public=True)
else:
return common.delete(_NAMESPACE, _SD_SALT_AUTH_KEY, public=True)
def set_autolock_delay_ms(delay_ms: int) -> None:
delay_ms = _normalize_autolock_delay(delay_ms)
common.set(_NAMESPACE, _AUTOLOCK_DELAY_MS, delay_ms.to_bytes(4, "big"))
def set_homescreen(homescreen: bytes) -> None:
if len(homescreen) > HOMESCREEN_MAXSIZE:
raise ValueError # homescreen too large
common.set(_NAMESPACE, _HOMESCREEN, homescreen, public=True)
def set_label(label: str) -> None:
if len(label) > LABEL_MAXLENGTH:
raise ValueError # label too long
common.set(_NAMESPACE, _LABEL, label.encode(), True) # public
def set(index: int, group_index: int, mnemonic: str) -> None:
common.set(
common.APP_RECOVERY_SHARES,
index + group_index * slip39.MAX_SHARE_COUNT,
mnemonic.encode(),
)
def get_device_id() -> str:
dev_id = common.get(_NAMESPACE, DEVICE_ID, public=True)
if not dev_id:
dev_id = _new_device_id().encode()
common.set(_NAMESPACE, DEVICE_ID, dev_id, public=True)
return dev_id.decode()
def set_autolock_delay_ms(delay_ms: int) -> None:
if delay_ms < 60 * 1000:
delay_ms = 60 * 1000
common.set(_NAMESPACE, _AUTOLOCK_DELAY_MS, delay_ms.to_bytes(4, "big"))
def set(index: int, data: bytes) -> None:
if not 0 <= index < MAX_RESIDENT_CREDENTIALS:
raise ValueError # invalid credential index
common.set(common.APP_WEBAUTHN, index + _RESIDENT_CREDENTIAL_START_KEY,
data)
def set_version(version: bytes) -> None:
common.set(_NAMESPACE, _VERSION, version)
def set_label(label: str) -> None:
common.set(_NAMESPACE, _LABEL, label.encode(), True) # public
def set_rotation(value: int) -> None:
if value not in (0, 90, 180, 270):
raise ValueError # unsupported display rotation
common.set(_NAMESPACE, _ROTATION, value.to_bytes(2, "big"), True) # public
def set_autolock_delay_ms(delay_ms: int) -> None:
delay_ms = max(delay_ms, AUTOLOCK_DELAY_MINIMUM)
delay_ms = min(delay_ms, AUTOLOCK_DELAY_MAXIMUM)
common.set(_NAMESPACE, _AUTOLOCK_DELAY_MS, delay_ms.to_bytes(4, "big"))
