/usr/lib/python3/dist-packages/bitcoin/signature.py is in python3-bitcoinlib 0.9.0-2.
This file is owned by root:root, with mode 0o644.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 | # Copyright (C) 2012-2014 The python-bitcoinlib developers
#
# This file is part of python-bitcoinlib.
#
# It is subject to the license terms in the LICENSE file found in the top-level
# directory of this distribution.
#
# No part of python-bitcoinlib, including this file, may be copied, modified,
# propagated, or distributed except according to the terms contained in the
# LICENSE file.
from __future__ import absolute_import, division, print_function, unicode_literals
from bitcoin.core.serialize import *
# Py3 compatibility
import sys
if sys.version > '3':
from io import BytesIO as _BytesIO
else:
from cStringIO import StringIO as _BytesIO
class DERSignature(ImmutableSerializable):
__slots__ = ['length', 'r', 's']
def __init__(self, r, s, length):
object.__setattr__(self, 'r', r)
object.__setattr__(self, 's', s)
object.__setattr__(self, 'length', length)
@classmethod
def stream_deserialize(cls, f):
assert ser_read(f, 1) == b"\x30"
rs = BytesSerializer.stream_deserialize(f)
f = _BytesIO(rs)
assert ser_read(f, 1) == b"\x02"
r = BytesSerializer.stream_deserialize(f)
assert ser_read(f, 1) == b"\x02"
s = BytesSerializer.stream_deserialize(f)
return cls(r, s, len(r + s))
def stream_serialize(self, f):
f.write(b"\x30")
f.write(b"\x02")
BytesSerializer.stream_serialize(self.r, f)
f.write(b"\x30")
BytesSerializer.stream_serialize(self.s, f)
def __repr__(self):
return 'DERSignature(%s, %s)' % (self.r, self.s)
__all__ = (
'DERSignature',
)
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