mirror of
https://github.com/trezor/trezor-firmware.git
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9fc5bb546b
Changes many fields to required -- as far as we were able to figure out, signing would fail if these fields aren't provided anyway, so this should not pose a compatibility problem. Co-authored-by: matejcik <ja@matejcik.cz>
44 lines
1.2 KiB
Python
44 lines
1.2 KiB
Python
from typing import TYPE_CHECKING
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from ubinascii import hexlify
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from trezor.messages import EthereumPublicKey, HDNodeType
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from trezor.ui.layouts import show_pubkey
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from apps.common import coins, paths
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from .keychain import with_keychain_from_path
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if TYPE_CHECKING:
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from trezor.messages import EthereumGetPublicKey
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from trezor.wire import Context
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from apps.common.keychain import Keychain
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@with_keychain_from_path(paths.PATTERN_BIP44_PUBKEY)
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async def get_public_key(
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ctx: Context, msg: EthereumGetPublicKey, keychain: Keychain
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) -> EthereumPublicKey:
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await paths.validate_path(ctx, keychain, msg.address_n)
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node = keychain.derive(msg.address_n)
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# we use the Bitcoin format for Ethereum xpubs
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btc = coins.by_name("Bitcoin")
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node_xpub = node.serialize_public(btc.xpub_magic)
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pubkey = node.public_key()
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if pubkey[0] == 1:
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pubkey = b"\x00" + pubkey[1:]
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node_type = HDNodeType(
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depth=node.depth(),
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child_num=node.child_num(),
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fingerprint=node.fingerprint(),
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chain_code=node.chain_code(),
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public_key=pubkey,
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)
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if msg.show_display:
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await show_pubkey(ctx, hexlify(pubkey).decode())
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return EthereumPublicKey(node=node_type, xpub=node_xpub)
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