2016-11-23 13:51:05 +00:00
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from trezor import ui
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2016-09-21 12:24:12 +00:00
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from trezor.utils import unimport
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2016-06-09 15:34:43 +00:00
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2016-09-21 12:24:12 +00:00
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@unimport
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2016-12-08 15:18:12 +00:00
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async def layout_sign_message(session_id, msg):
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2016-11-16 20:28:27 +00:00
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from trezor.messages.MessageSignature import MessageSignature
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from trezor.crypto.curve import secp256k1
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from ..common import coins
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2016-12-08 15:18:12 +00:00
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from ..common import seed
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2016-11-16 22:08:41 +00:00
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from ..common.signverify import message_digest
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2016-09-26 11:07:53 +00:00
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2016-09-28 15:00:27 +00:00
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ui.display.clear()
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2016-09-21 12:24:12 +00:00
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ui.display.text(10, 30, 'Signing message',
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ui.BOLD, ui.LIGHT_GREEN, ui.BLACK)
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2016-11-16 20:28:27 +00:00
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ui.display.text(10, 60, msg.message, ui.MONO, ui.WHITE, ui.BLACK)
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2016-09-21 12:24:12 +00:00
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2016-11-23 13:51:05 +00:00
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coin_name = msg.coin_name or 'Bitcoin'
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2016-11-16 20:28:27 +00:00
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coin = coins.by_name(coin_name)
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2016-09-26 11:07:53 +00:00
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2016-12-08 15:18:12 +00:00
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node = await seed.get_node(session_id, msg.address_n)
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2016-11-16 20:28:27 +00:00
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seckey = node.private_key()
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address = node.address(coin.address_type)
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2016-11-17 12:40:05 +00:00
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digest = message_digest(coin, msg.message)
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2016-11-16 20:28:27 +00:00
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signature = secp256k1.sign(seckey, digest)
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return MessageSignature(address=address, signature=signature)
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