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trezor-firmware/core/src/apps/eos/get_public_key.py

33 lines
982 B
Python

from trezor import wire
from trezor.crypto.curve import secp256k1
from trezor.messages import EosGetPublicKey, EosPublicKey
from apps.common import paths
from apps.common.keychain import Keychain, auto_keychain
from .helpers import public_key_to_wif
from .layout import require_get_public_key
if False:
from trezor.crypto import bip32
def _get_public_key(node: bip32.HDNode) -> tuple[str, bytes]:
seckey = node.private_key()
public_key = secp256k1.publickey(seckey, True)
wif = public_key_to_wif(public_key)
return wif, public_key
@auto_keychain(__name__)
async def get_public_key(
ctx: wire.Context, msg: EosGetPublicKey, keychain: Keychain
) -> EosPublicKey:
await paths.validate_path(ctx, keychain, msg.address_n)
node = keychain.derive(msg.address_n)
wif, public_key = _get_public_key(node)
if msg.show_display:
await require_get_public_key(ctx, wif)
return EosPublicKey(wif_public_key=wif, raw_public_key=public_key)