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xprv checksum

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This commit is contained in:
slush0 2014-01-08 15:59:18 +01:00
parent dc671173d0
commit 3b19508a9d
1 changed files with 7 additions and 4 deletions
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9
trezorlib/client.py
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@ -1,6 +1,7 @@
import os import os
import time import time
import binascii import binascii
import hashlib
import ckd_public import ckd_public
import tools import tools
@ -311,13 +312,17 @@ class TrezorClient(object):
if data[90:92] != '00': if data[90:92] != '00':
raise Exception("Contain invalid private key") raise Exception("Contain invalid private key")
checksum = hashlib.sha256(hashlib.sha256(binascii.unhexlify(data[:156])).digest()).hexdigest()[:8]
if checksum != data[156:]:
raise Exception("Checksum doesn't match")
# version 0488ade4 # version 0488ade4
# depth 00 # depth 00
# fingerprint 00000000 # fingerprint 00000000
# child_num 00000000 # child_num 00000000
# chaincode 873dff81c02f525623fd1fe5167eac3a55a049de3d314bb42ee227ffed37d508 # chaincode 873dff81c02f525623fd1fe5167eac3a55a049de3d314bb42ee227ffed37d508
# privkey 00e8f32e723decf4051aefac8e2c93c9c5b214313817cdb01a1494b917c8436b35 # privkey 00e8f32e723decf4051aefac8e2c93c9c5b214313817cdb01a1494b917c8436b35
# wtf is this? e77e9d71 # checksum e77e9d71
node.version = int(data[0:8], 16) node.version = int(data[0:8], 16)
node.depth = int(data[8:10], 16) node.depth = int(data[8:10], 16)
@ -325,8 +330,6 @@ class TrezorClient(object):
node.child_num = int(data[18:26], 16) node.child_num = int(data[18:26], 16)
node.chain_code = data[26:90].decode('hex') node.chain_code = data[26:90].decode('hex')
node.private_key = data[92:156].decode('hex') # skip 0x00 indicating privkey node.private_key = data[92:156].decode('hex') # skip 0x00 indicating privkey
print 'wtf is this?', len(data[156:])
# FIXME
resp = self.call(proto.LoadDevice(node=node, resp = self.call(proto.LoadDevice(node=node,
pin=pin, pin=pin,