trezor-firmware/core/src/apps/lisk/get_address.py

from trezor.messages import LiskAddress
from trezor.ui.layouts import show_address

from apps.common import paths
from apps.common.keychain import auto_keychain

from .helpers import get_address_from_public_key


@auto_keychain(__name__)
async def get_address(ctx, msg, keychain):
    await paths.validate_path(ctx, keychain, msg.address_n)

    node = keychain.derive(msg.address_n)
    pubkey = node.public_key()
    pubkey = pubkey[1:]  # skip ed25519 pubkey marker
    address = get_address_from_public_key(pubkey)

    if msg.show_display:
        title = paths.address_n_to_str(msg.address_n)
        await show_address(ctx, address=address, address_qr=address, title=title)

    return LiskAddress(address=address)