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lightning: use SigningKey instead of EC_KEY

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Janus 2018-03-14 14:28:03 +01:00
parent 9df0840e8f
commit f434617084
1 changed files with 11 additions and 11 deletions
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22
lib/lightning.py
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@ -9,9 +9,9 @@ from jsonrpclib import Server
from google.protobuf import json_format
import binascii
import ecdsa.util
import ecdsa.curves
import hashlib
from .bitcoin import EC_KEY
from ecdsa import SigningKey
from ecdsa.curves import SECP256k1
from . import bitcoin
from . import transaction
@ -265,7 +265,7 @@ def SignMessage(json):
print("searching lightning_extra_keys", req.pubKey)
for i in priv_keys:
assert type(i) is int
signkey = MySigningKey.from_secret_exponent(i, curve=ecdsa.curves.SECP256k1)
signkey = SigningKey.from_secret_exponent(i, curve=SECP256k1)
pubkeystr = signkey.get_verifying_key().to_string()
print("pubkeystr", pubkeystr)
if pubkeystr == req.pubKey:
@ -275,7 +275,7 @@ def SignMessage(json):
else:
pri, _ = WALLET.export_private_key(address, None)
typ, pri, compressed = bitcoin.deserialize_privkey(pri)
pri = EC_KEY(pri)
pri = SigningKey.from_string(pri, curve=SECP256k1)
m.signature = pri.sign(bitcoin.Hash(req.messageToBeSigned), ecdsa.util.sigencode_der)
m.error = ""
@ -332,8 +332,8 @@ class InputScript(object):
def tweakPrivKey(basePriv, commitTweak):
tweakInt = int.from_bytes(commitTweak, byteorder="big")
tweakInt += basePriv.secret # D is secret
tweakInt %= ecdsa.curves.SECP256k1.generator.order()
return EC_KEY(tweakInt.to_bytes(33, 'big')) # TODO find out if 33 bytes are necessary. private keys are usually only 32 bytes
tweakInt %= SECP256k1.generator.order()
return SigningKey.from_string(tweakInt.to_bytes(32, 'big'), curve=SECP256k1)
def singleTweakBytes(commitPoint, basePoint):
m = hashlib.sha256()
@ -354,16 +354,16 @@ def deriveRevocationPrivKey(revokeBasePriv, commitSecret):
commitHalfPriv = commitTweakInt * commitSecret.secret
revocationPriv = revokeHalfPriv + commitHalfPriv
revocationPriv %= ecdsa.curves.SECP256k1.generator.order()
revocationPriv %= SECP256k1.generator.order()
return EC_KEY(revocationPriv.to_bytes(33, byteorder="big")) # TODO find out if 33 bytes are necessary. private keys are usually only 32 bytes
return SigningKey.from_string(revocationPriv.to_bytes(32, byteorder="big"), curve=SECP256k1)
def maybeTweakPrivKey(signdesc, pri):
if len(signdesc.singleTweak) > 0:
pri2 = tweakPrivKey(pri, signdesc.singleTweak)
elif len(signdesc.doubleTweak) > 0:
pri2 = deriveRevocationPrivKey(pri, EC_KEY(signdesc.doubleTweak))
pri2 = deriveRevocationPrivKey(pri, SigningKey.from_string(signdesc.doubleTweak, curve=SECP256k1))
else:
pri2 = pri
@ -594,7 +594,7 @@ def fetchPrivKey(str_address, keyLocatorFamily, keyLocatorIndex):
assert pri is not None, (str_address, keyLocatorFamily, keyLocatorIndex)
pri = EC_KEY(pri)
pri = SigningKey.from_string(pri, curve=SECP256k1)
return pri
@ -925,7 +925,7 @@ def ScalarMult(json):
m = rpc_pb2.ScalarMultResponse()
m.pubKey = EC_KEY(c.digest()).privkey.get_verifying_key().to_string()
m.pubKey = SigningKey.from_string(c.digest(), curve=SECP256k1).privkey.get_verifying_key().to_string()
msg = json_format.MessageToJson(m)
return msg