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https://github.com/trezor/trezor-firmware.git
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25 lines
797 B
Python
25 lines
797 B
Python
from typing import TYPE_CHECKING
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if TYPE_CHECKING:
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from trezor.messages import GetNextU2FCounter, NextU2FCounter
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async def get_next_u2f_counter(msg: GetNextU2FCounter) -> NextU2FCounter:
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import storage.device as storage_device
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from trezor.wire import NotInitialized
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from trezor.enums import ButtonRequestType
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from trezor.messages import NextU2FCounter
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from trezor.ui.layouts import confirm_action
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if not storage_device.is_initialized():
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raise NotInitialized("Device is not initialized")
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await confirm_action(
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"get_u2f_counter",
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"Get U2F counter",
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description="Increase and retrieve the U2F counter?",
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br_code=ButtonRequestType.ProtectCall,
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)
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return NextU2FCounter(u2f_counter=storage_device.next_u2f_counter())
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