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https://github.com/trezor/trezor-firmware.git
synced 2025-07-08 07:38:11 +00:00
46 lines
1.4 KiB
Python
46 lines
1.4 KiB
Python
from trezor import wire
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from trezor.crypto.curve import secp256k1
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from trezor.crypto.hashlib import sha3_256
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from trezor.messages.Success import Success
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from trezor.ui.text import Text
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from apps.common.confirm import require_confirm
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from apps.common.layout import split_address
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from apps.common.signverify import split_message
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from apps.ethereum.address import address_from_bytes, bytes_from_address
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from apps.ethereum.sign_message import message_digest
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async def verify_message(ctx, msg):
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digest = message_digest(msg.message)
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if len(msg.signature) != 65:
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raise wire.DataError("Invalid signature")
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sig = bytearray([msg.signature[64]]) + msg.signature[:64]
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pubkey = secp256k1.verify_recover(sig, digest)
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if not pubkey:
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raise wire.DataError("Invalid signature")
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pkh = sha3_256(pubkey[1:], keccak=True).digest()[-20:]
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address_bytes = bytes_from_address(msg.address)
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if address_bytes != pkh:
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raise wire.DataError("Invalid signature")
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address = address_from_bytes(address_bytes)
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await require_confirm_verify_message(ctx, address, msg.message)
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return Success(message="Message verified")
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async def require_confirm_verify_message(ctx, address, message):
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text = Text("Confirm address", new_lines=False)
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text.mono(*split_address(address))
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await require_confirm(ctx, text)
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text = Text("Verify message", new_lines=False)
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text.mono(*split_message(message))
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await require_confirm(ctx, text)
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