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refactor(core): delegate EthereumGetPublicKey to bitcoin GetPublicKey

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matejcik 2023-02-03 14:48:26 +01:00 committed by matejcik
parent 01edf3f796
commit 505e014ae1
1 changed files with 7 additions and 30 deletions
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37
core/src/apps/ethereum/get_public_key.py
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@ -1,44 +1,21 @@
from typing import TYPE_CHECKING
from apps.common import paths
from .keychain import with_keychain_from_path
if TYPE_CHECKING:
from trezor.messages import EthereumGetPublicKey, EthereumPublicKey
from trezor.wire import Context
from apps.common.keychain import Keychain
@with_keychain_from_path(paths.PATTERN_BIP44_PUBKEY)
async def get_public_key(
ctx: Context, msg: EthereumGetPublicKey, keychain: Keychain
) -> EthereumPublicKey:
async def get_public_key(ctx: Context, msg: EthereumGetPublicKey) -> EthereumPublicKey:
from ubinascii import hexlify
from trezor.messages import EthereumPublicKey, HDNodeType
from trezor.messages import EthereumPublicKey, GetPublicKey
from trezor.ui.layouts import show_pubkey
from apps.common import coins
await paths.validate_path(ctx, keychain, msg.address_n)
node = keychain.derive(msg.address_n)
from apps.bitcoin import get_public_key as bitcoin_get_public_key
# we use the Bitcoin format for Ethereum xpubs
btc = coins.by_name("Bitcoin")
node_xpub = node.serialize_public(btc.xpub_magic)
pubkey = node.public_key()
if pubkey[0] == 1:
pubkey = b"\x00" + pubkey[1:]
node_type = HDNodeType(
depth=node.depth(),
child_num=node.child_num(),
fingerprint=node.fingerprint(),
chain_code=node.chain_code(),
public_key=pubkey,
)
btc_pubkey_msg = GetPublicKey(address_n=msg.address_n)
resp = await bitcoin_get_public_key.get_public_key(ctx, btc_pubkey_msg)
if msg.show_display:
await show_pubkey(ctx, hexlify(pubkey).decode())
await show_pubkey(ctx, hexlify(resp.node.public_key).decode())
return EthereumPublicKey(node=node_type, xpub=node_xpub)
return EthereumPublicKey(node=resp.node, xpub=resp.xpub)