mirror of
https://github.com/trezor/trezor-firmware.git
synced 2025-01-04 04:21:01 +00:00
apps.wallet: implement VerifyMessage
This commit is contained in:
parent
388e2dc305
commit
620ed74aa7
src/apps
@ -25,3 +25,15 @@ def strip(address_type, raw_address):
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raise ValueError('Invalid address')
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l = length(address_type)
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return raw_address[l:]
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def split(coin, raw_address):
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l = None
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for f in ['', '_p2sh', '_p2wpkh', '_p2wsh']:
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at = getattr(coin, 'address_type' + f)
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if at is not None and check(at, raw_address):
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l = length(coin.address_type)
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break
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if l is not None:
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return raw_address[:l], raw_address[l:]
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else:
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raise ValueError('Invalid addressXXX')
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@ -1,7 +1,7 @@
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from trezor.wire import register_type, protobuf_handler
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from trezor.utils import unimport
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from trezor.messages.wire_types import \
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GetPublicKey, GetAddress, SignTx, EstimateTxSize, SignMessage
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GetPublicKey, GetAddress, SignTx, EstimateTxSize, SignMessage, VerifyMessage
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@unimport
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@ -37,9 +37,16 @@ def dispatch_SignMessage(*args, **kwargs):
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return layout_sign_message(*args, **kwargs)
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@unimport
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def dispatch_VerifyMessage(*args, **kwargs):
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from .layout_verify_message import layout_verify_message
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return layout_verify_message(*args, **kwargs)
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def boot():
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register_type(GetPublicKey, protobuf_handler, dispatch_GetPublicKey)
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register_type(GetAddress, protobuf_handler, dispatch_GetAddress)
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register_type(SignTx, protobuf_handler, dispatch_SignTx)
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register_type(EstimateTxSize, protobuf_handler, dispatch_EstimateTxSize)
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register_type(SignMessage, protobuf_handler, dispatch_SignMessage)
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register_type(VerifyMessage, protobuf_handler, dispatch_VerifyMessage)
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45
src/apps/wallet/layout_verify_message.py
Normal file
45
src/apps/wallet/layout_verify_message.py
Normal file
@ -0,0 +1,45 @@
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from trezor import wire, ui
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from trezor.utils import unimport
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@unimport
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async def layout_verify_message(msg, session_id):
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from trezor.messages.Success import Success
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from trezor.crypto.curve import secp256k1
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from trezor.crypto.hashlib import ripemd160, sha256
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from trezor.crypto import base58
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from ..common import address_type
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from ..common import coins
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from ..common.signtx import node_derive, HashWriter, write_varint
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address = msg.address
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message = msg.message
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signature = msg.signature
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coin_name = getattr(msg, 'coin_name', 'Bitcoin')
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coin = coins.by_name(coin_name)
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ui.display.clear()
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ui.display.text(10, 30, 'Verifying message',
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ui.BOLD, ui.LIGHT_GREEN, ui.BLACK)
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ui.display.text(10, 60, message, ui.MONO, ui.WHITE, ui.BLACK)
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ui.display.text(10, 80, address, ui.MONO, ui.WHITE, ui.BLACK)
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h = HashWriter(sha256)
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write_varint(h, len(coin.signed_message_header))
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h.extend(coin.signed_message_header)
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write_varint(h, len(message))
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h.extend(message)
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digest = sha256(h.getvalue()).digest()
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pubkey = secp256k1.verify_recover(signature, digest)
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if not pubkey:
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raise ValueError('Invalid signature')
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raw_address = base58.decode_check(address)
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at, pkh = address_type.split(coin, raw_address)
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pkh2 = ripemd160(sha256(pubkey).digest()).digest()
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if pkh != pkh2:
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raise ValueError('Invalid signature')
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return Success(message='Message verified')
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