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trezor: limit passphrase length

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Roman Zeyde
2018-03-06 10:06:00 +02:00
parent a1047ba7b1
commit 54ce6f2cec
1 changed files with 5 additions and 0 deletions
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5
libagent/device/trezor.py
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@@ -90,6 +90,11 @@ class Trezor(interface.Device):
passphrase = mnemonic.Mnemonic.normalize_string(passphrase) passphrase = mnemonic.Mnemonic.normalize_string(passphrase)
ack = self._defs.PassphraseAck(passphrase=passphrase) ack = self._defs.PassphraseAck(passphrase=passphrase)
length = len(ack.passphrase)
if length > 50:
msg = 'Too long passphrase ({} chars)'.format(length)
raise ValueError(msg)
self.__class__.cached_passphrase_ack = ack self.__class__.cached_passphrase_ack = ack
return ack return ack
except: # noqa except: # noqa