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Code Issues Releases Wiki Activity

signing/multisig: multisig exception

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This commit is contained in:
Tomas Susanka 2018-02-27 12:58:37 +01:00
parent 85e5a87c24
commit 5f362f7493
2 changed files with 10 additions and 5 deletions
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2
src/apps/wallet/sign_tx/__init__.py
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@ -19,6 +19,8 @@ async def sign_tx(ctx, msg):
req = signer.send(res)
except signing.SigningError as e:
raise wire.FailureError(*e.args)
except signing.MultisigError as e:
raise wire.FailureError(*e.args)
except signing.AddressError as e:
raise wire.FailureError(*e.args)
except signing.ScriptsError as e:

13
src/apps/wallet/sign_tx/multisig.py
View File

@ -3,11 +3,16 @@ from trezor.crypto import bip32
from trezor.messages.MultisigRedeemScriptType import MultisigRedeemScriptType
from trezor.messages.HDNodePathType import HDNodePathType
from trezor.messages import FailureType
from apps.wallet.sign_tx.writers import *
from apps.common.hash_writer import *
class MultisigError(ValueError):
pass
class MultisigFingerprint:
def __init__(self):
self.fingerprint = None # multisig fingerprint bytes
@ -36,14 +41,12 @@ def multisig_fingerprint(multisig: MultisigRedeemScriptType) -> bytes:
n = len(pubkeys)
if n < 1 or n > 15 or m < 1 or m > 15:
raise SigningError(FailureType.DataError,
'Invalid multisig parameters')
raise MultisigError(FailureType.DataError, 'Invalid multisig parameters')
for hd in pubkeys:
d = hd.node
if len(d.public_key) != 33 or len(d.chain_code) != 32:
raise SigningError(FailureType.DataError,
'Invalid multisig parameters')
raise MultisigError(FailureType.DataError, 'Invalid multisig parameters')
# casting to bytes(), sorting on bytearray() is not supported in MicroPython
pubkeys = sorted(pubkeys, key=lambda hd: bytes(hd.node.public_key))
@ -66,7 +69,7 @@ def multisig_pubkey_index(multisig: MultisigRedeemScriptType, pubkey: bytes) ->
for i, hd in enumerate(multisig.pubkeys):
if multisig_get_pubkey(hd) == pubkey:
return i
raise SigningError(FailureType.DataError,
raise MultisigError(FailureType.DataError,
'Pubkey not found in multisig script')