add skein-sha256 algo support
This commit is contained in:
root
Ahmed Bodiwala
parent
41f11d9ac4
commit
ce26572267
@ -19,7 +19,7 @@ COINDAEMON_TRUSTED_PASSWORD = 'somepassword'
|
||||
# Coin Algorithm is the option used to determine the algortithm used by stratum
|
||||
# This currently works with POW and POS coins
|
||||
# The available options are:
|
||||
# scrypt, sha256d, scrypt-jane and quark
|
||||
# scrypt, sha256d, scrypt-jane, skeinhash, and quark
|
||||
# If the option does not meet either of these criteria stratum defaults to scrypt
|
||||
# For Coins which support TX Messages please enter yes in the TX selection
|
||||
COINDAEMON_ALGO = 'scrypt'
|
||||
|
||||
206
lib/skein.py
Normal file
206
lib/skein.py
Normal file
@ -0,0 +1,206 @@
|
||||
# /usr/bin/env python
|
||||
# coding=utf-8
|
||||
|
||||
# Copyright 2010 Jonathan Bowman
|
||||
#
|
||||
# Licensed under the Apache License, Version 2.0 (the "License");
|
||||
# you may not use this file except in compliance with the License.
|
||||
# You may obtain a copy of the License at
|
||||
#
|
||||
# http://www.apache.org/licenses/LICENSE-2.0
|
||||
#
|
||||
# Unless required by applicable law or agreed to in writing, software
|
||||
# distributed under the License is distributed on an "AS IS" BASIS,
|
||||
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
|
||||
# implied. See the License for the specific language governing
|
||||
# permissions and limitations under the License.
|
||||
|
||||
"""Pure Python implementation of the Skein 512-bit hashing algorithm"""
|
||||
|
||||
import array
|
||||
import binascii
|
||||
import os
|
||||
import struct
|
||||
|
||||
from threefish import (add64, bigint, bytes2words, Threefish512, words,
|
||||
words2bytes, words_format, xrange,
|
||||
zero_bytes, zero_words)
|
||||
|
||||
# An empty bytestring that behaves itself whether in Python 2 or 3
|
||||
empty_bytes = array.array('B').tostring()
|
||||
|
||||
class Skein512(object):
|
||||
"""Skein 512-bit hashing algorithm
|
||||
|
||||
The message to be hashed may be set as `msg` when initialized, or
|
||||
passed in later using the ``update`` method.
|
||||
|
||||
Use `key` (a bytestring with arbitrary length) for MAC
|
||||
functionality.
|
||||
|
||||
`block_type` will typically be "msg", but may also be one of:
|
||||
"key", "nonce", "cfg_final", or "out_final". These will affect the
|
||||
tweak value passed to the underlying Threefish block cipher. Again,
|
||||
if you don't know which one to choose, "msg" is probably what you
|
||||
want.
|
||||
|
||||
Example:
|
||||
|
||||
>>> Skein512("Hello, world!").hexdigest()
|
||||
'8449f597f1764274f8bf4a03ead22e0404ea2dc63c8737629e6e282303aebfd5dd96f07e21ae2e7a8b2bdfadd445bd1d71dfdd9745c95b0eb05dc01f289ad765'
|
||||
|
||||
"""
|
||||
block_size = 64
|
||||
block_bits = 512
|
||||
block_type = {'key': 0,
|
||||
'nonce': 0x5400000000000000,
|
||||
'msg': 0x7000000000000000,
|
||||
'cfg_final': 0xc400000000000000,
|
||||
'out_final': 0xff00000000000000}
|
||||
|
||||
def __init__(self, msg='', digest_bits=512, key=None,
|
||||
block_type='msg'):
|
||||
self.tf = Threefish512()
|
||||
if key:
|
||||
self.digest_bits = 512
|
||||
self._start_new_type('key')
|
||||
self.update(key)
|
||||
self.tf.key = bytes2words(self.final(False))
|
||||
self.digest_bits = digest_bits
|
||||
self.digest_size = (digest_bits + 7) >> 3
|
||||
self._start_new_type('cfg_final')
|
||||
b = words2bytes((0x133414853,digest_bits,0,0,0,0,0,0))
|
||||
self._process_block(b,32)
|
||||
self._start_new_type(block_type)
|
||||
if msg:
|
||||
self.update(msg)
|
||||
|
||||
def _start_new_type(self, block_type):
|
||||
"""Setup new tweak values and internal buffer.
|
||||
|
||||
Primarily for internal use.
|
||||
|
||||
"""
|
||||
self.buf = empty_bytes
|
||||
self.tf.tweak = words([0, self.block_type[block_type]])
|
||||
|
||||
def _process_block(self, block, byte_count_add):
|
||||
"""Encrypt internal state using Threefish.
|
||||
|
||||
Primarily for internal use.
|
||||
|
||||
"""
|
||||
block_len = len(block)
|
||||
for i in xrange(0,block_len,64):
|
||||
w = bytes2words(block[i:i+64])
|
||||
self.tf.tweak[0] = add64(self.tf.tweak[0], byte_count_add)
|
||||
self.tf.prepare_tweak()
|
||||
self.tf.prepare_key()
|
||||
self.tf.key = self.tf.encrypt_block(w)
|
||||
self.tf._feed_forward(self.tf.key, w)
|
||||
# set second tweak value to ~SKEIN_T1_FLAG_FIRST:
|
||||
self.tf.tweak[1] &= bigint(0xbfffffffffffffff)
|
||||
|
||||
def update(self, msg):
|
||||
"""Update internal state with new data to be hashed.
|
||||
|
||||
`msg` is a bytestring, and should be a bytes object in Python 3
|
||||
and up, or simply a string in Python 2.5 and 2.6.
|
||||
|
||||
"""
|
||||
self.buf += msg
|
||||
buflen = len(self.buf)
|
||||
if buflen > 64:
|
||||
end = -(buflen % 64) or (buflen-64)
|
||||
data = self.buf[0:end]
|
||||
self.buf = self.buf[end:]
|
||||
try:
|
||||
self._process_block(data, 64)
|
||||
except:
|
||||
print(len(data))
|
||||
print(binascii.b2a_hex(data))
|
||||
|
||||
def final(self, output=True):
|
||||
"""Return hashed data as bytestring.
|
||||
|
||||
`output` is primarily for internal use. It should only be False
|
||||
if you have a clear reason for doing so.
|
||||
|
||||
This function can be called as either ``final`` or ``digest``.
|
||||
|
||||
"""
|
||||
self.tf.tweak[1] |= bigint(0x8000000000000000) # SKEIN_T1_FLAG_FINAL
|
||||
buflen = len(self.buf)
|
||||
self.buf += zero_bytes[:64-buflen]
|
||||
|
||||
self._process_block(self.buf, buflen)
|
||||
|
||||
if not output:
|
||||
hash_val = words2bytes(self.tf.key)
|
||||
else:
|
||||
hash_val = empty_bytes
|
||||
self.buf = zero_bytes[:]
|
||||
key = self.tf.key[:] # temporary copy
|
||||
i=0
|
||||
while i*64 < self.digest_size:
|
||||
self.buf = words_format[1].pack(i) + self.buf[8:]
|
||||
self.tf.tweak = [0, self.block_type['out_final']]
|
||||
self._process_block(self.buf, 8)
|
||||
n = self.digest_size - i*64
|
||||
if n >= 64:
|
||||
n = 64
|
||||
hash_val += words2bytes(self.tf.key)[0:n]
|
||||
self.tf.key = key
|
||||
i+=1
|
||||
return hash_val
|
||||
|
||||
digest = final
|
||||
|
||||
def hexdigest(self):
|
||||
"""Return a hexadecimal representation of the hashed data"""
|
||||
return binascii.b2a_hex(self.digest())
|
||||
|
||||
class Skein512Random(Skein512):
|
||||
"""A Skein-based pseudo-random bytestring generator.
|
||||
|
||||
If `seed` is unspecified, ``os.urandom`` will be used to provide the
|
||||
seed.
|
||||
|
||||
In case you are using this as an iterator, rather than generating
|
||||
new data at each iteration, a pool of length `queue_size` is
|
||||
generated periodically.
|
||||
|
||||
"""
|
||||
def __init__(self, seed=None, queue_size=512):
|
||||
Skein512.__init__(self, block_type='nonce')
|
||||
self.queue = []
|
||||
self.queue_size = queue_size
|
||||
self.tf.key = zero_words[:]
|
||||
if not seed:
|
||||
seed = os.urandom(100)
|
||||
self.reseed(seed)
|
||||
|
||||
def reseed(self, seed):
|
||||
"""(Re)seed the generator."""
|
||||
self.digest_size = 64
|
||||
self.update(words2bytes(self.tf.key) + seed)
|
||||
self.tf.key = bytes2words(self.final())
|
||||
|
||||
def getbytes(self, request_bytes):
|
||||
"""Return random bytestring of length `request_bytes`."""
|
||||
self.digest_size = 64 + request_bytes
|
||||
self.update(words2bytes(self.tf.key))
|
||||
output = self.final()
|
||||
self.tf.key = bytes2words(output[0:64])
|
||||
return output[64:]
|
||||
|
||||
def __iter__(self):
|
||||
return self
|
||||
|
||||
def next(self):
|
||||
if not self.queue:
|
||||
self.queue = array.array('B', self.getbytes(self.queue_size))
|
||||
return self.queue.pop()
|
||||
|
||||
if __name__ == '__main__':
|
||||
print Skein512('123').hexdigest()
|
||||
20
lib/skeinhash.py
Normal file
20
lib/skeinhash.py
Normal file
@ -0,0 +1,20 @@
|
||||
import hashlib
|
||||
import struct
|
||||
import skein
|
||||
|
||||
def skeinhash(msg):
|
||||
return hashlib.sha256(skein.Skein512(msg[:80]).digest()).digest()
|
||||
|
||||
def skeinhashmid(msg):
|
||||
s = skein.Skein512(msg[:64] + '\x00') # hack to force Skein512.update()
|
||||
return struct.pack('<8Q', *s.tf.key.tolist())
|
||||
|
||||
if __name__ == '__main__':
|
||||
mesg = "dissociative1234dissociative4567dissociative1234dissociative4567dissociative1234"
|
||||
h = skeinhashmid(mesg)
|
||||
print h.encode('hex')
|
||||
print 'ad0d423b18b47f57724e519c42c9d5623308feac3df37aca964f2aa869f170bdf23e97f644e81511df49c59c5962887d17e277e7e8513345137638334c8e59a4' == h.encode('hex')
|
||||
|
||||
h = skeinhash(mesg)
|
||||
print h.encode('hex')
|
||||
print '764da2e768811e91c6c0c649b052b7109a9bc786bce136a59c8d5a0547cddc54' == h.encode('hex')
|
||||
@ -9,6 +9,8 @@ elif settings.COINDAEMON_ALGO == 'scrypt-jane':
|
||||
import yac_scrypt
|
||||
elif settings.COINDAEMON_ALGO == 'quark':
|
||||
import quark_hash
|
||||
elif settings.COINDAEMON_ALGO == 'skeinhash':
|
||||
import skeinhash
|
||||
else: pass
|
||||
from twisted.internet import defer
|
||||
from lib.exceptions import SubmitException
|
||||
@ -242,6 +244,8 @@ class TemplateRegistry(object):
|
||||
hash_bin = yac_scrypt.getPoWHash(''.join([ header_bin[i*4:i*4+4][::-1] for i in range(0, 20) ]), int(ntime, 16))
|
||||
elif settings.COINDAEMON_ALGO == 'quark':
|
||||
hash_bin = quark_hash.getPoWHash(''.join([ header_bin[i*4:i*4+4][::-1] for i in range(0, 20) ]))
|
||||
elif settings.COINDAEMON_ALGO == 'skeinhash':
|
||||
hash_bin = skeinhash.skeinhash(''.join([ header_bin[i*4:i*4+4][::-1] for i in range(0, 20) ]))
|
||||
else:
|
||||
hash_bin = util.doublesha(''.join([ header_bin[i*4:i*4+4][::-1] for i in range(0, 20) ]))
|
||||
|
||||
|
||||
147
lib/threefish.py
Normal file
147
lib/threefish.py
Normal file
@ -0,0 +1,147 @@
|
||||
# /usr/bin/env python
|
||||
# coding=utf-8
|
||||
|
||||
# Copyright 2010 Jonathan Bowman
|
||||
#
|
||||
# Licensed under the Apache License, Version 2.0 (the "License");
|
||||
# you may not use this file except in compliance with the License.
|
||||
# You may obtain a copy of the License at
|
||||
#
|
||||
# http://www.apache.org/licenses/LICENSE-2.0
|
||||
#
|
||||
# Unless required by applicable law or agreed to in writing, software
|
||||
# distributed under the License is distributed on an "AS IS" BASIS,
|
||||
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
|
||||
# implied. See the License for the specific language governing
|
||||
# permissions and limitations under the License.
|
||||
|
||||
"""Pure Python implementation of the Threefish block cipher
|
||||
|
||||
The core of the Skein 512-bit hashing algorithm
|
||||
|
||||
"""
|
||||
from util_numpy import add64, bigint, bytelist, bytes2words, imap, izip, sub64, \
|
||||
SKEIN_KS_PARITY, words, words2bytes, words_format, xrange, zero_bytes, zero_words, RotL_64, RotR_64, xor
|
||||
|
||||
from itertools import cycle
|
||||
|
||||
ROT = bytelist((46, 36, 19, 37,
|
||||
33, 27, 14, 42,
|
||||
17, 49, 36, 39,
|
||||
44, 9, 54, 56,
|
||||
39, 30, 34, 24,
|
||||
13, 50, 10, 17,
|
||||
25, 29, 39, 43,
|
||||
8, 35, 56, 22))
|
||||
|
||||
PERM = bytelist(((0,1),(2,3),(4,5),(6,7),
|
||||
(2,1),(4,7),(6,5),(0,3),
|
||||
(4,1),(6,3),(0,5),(2,7),
|
||||
(6,1),(0,7),(2,5),(4,3)))
|
||||
|
||||
class Threefish512(object):
|
||||
"""The Threefish 512-bit block cipher.
|
||||
|
||||
The key and tweak may be set when initialized (as
|
||||
bytestrings) or after initialization using the ``tweak`` or
|
||||
``key`` properties. When choosing the latter, be sure to call
|
||||
the ``prepare_key`` and ``prepare_tweak`` methods.
|
||||
|
||||
"""
|
||||
def __init__(self, key=None, tweak=None):
|
||||
"""Set key and tweak.
|
||||
|
||||
The key and the tweak will be lists of 8 64-bit words
|
||||
converted from `key` and `tweak` bytestrings, or all
|
||||
zeroes if not specified.
|
||||
|
||||
"""
|
||||
if key:
|
||||
self.key = bytes2words(key)
|
||||
self.prepare_key()
|
||||
else:
|
||||
self.key = words(zero_words[:] + [0])
|
||||
if tweak:
|
||||
self.tweak = bytes2words(tweak, 2)
|
||||
self.prepare_tweak()
|
||||
else:
|
||||
self.tweak = zero_words[:3]
|
||||
|
||||
def prepare_key(self):
|
||||
"""Compute key."""
|
||||
final = reduce(xor, self.key[:8]) ^ SKEIN_KS_PARITY
|
||||
try:
|
||||
self.key[8] = final
|
||||
except IndexError:
|
||||
#self.key.append(final)
|
||||
self.key = words(list(self.key) + [final])
|
||||
|
||||
def prepare_tweak(self):
|
||||
"""Compute tweak."""
|
||||
final = self.tweak[0] ^ self.tweak[1]
|
||||
try:
|
||||
self.tweak[2] = final
|
||||
except IndexError:
|
||||
#self.tweak.append(final)
|
||||
self.tweak = words(list(self.tweak) + [final])
|
||||
|
||||
def encrypt_block(self, plaintext):
|
||||
"""Return 8-word ciphertext, encrypted from plaintext.
|
||||
|
||||
`plaintext` must be a list of 8 64-bit words.
|
||||
|
||||
"""
|
||||
key = self.key
|
||||
tweak = self.tweak
|
||||
state = words(list(imap(add64, plaintext, key[:8])))
|
||||
state[5] = add64(state[5], tweak[0])
|
||||
state[6] = add64(state[6], tweak[1])
|
||||
|
||||
for r,s in izip(xrange(1,19),cycle((0,16))):
|
||||
for i in xrange(16):
|
||||
m,n = PERM[i]
|
||||
state[m] = add64(state[m], state[n])
|
||||
state[n] = RotL_64(state[n], ROT[i+s])
|
||||
state[n] = state[n] ^ state[m]
|
||||
for y in xrange(8):
|
||||
state[y] = add64(state[y], key[(r+y) % 9])
|
||||
state[5] = add64(state[5], tweak[r % 3])
|
||||
state[6] = add64(state[6], tweak[(r+1) % 3])
|
||||
state[7] = add64(state[7], r)
|
||||
|
||||
return state
|
||||
|
||||
def _feed_forward(self, state, plaintext):
|
||||
"""Compute additional step required when hashing.
|
||||
|
||||
Primarily for internal use.
|
||||
|
||||
"""
|
||||
state[:] = list(imap(xor, state, plaintext))
|
||||
|
||||
def decrypt_block(self, ciphertext):
|
||||
"""Return 8-word plaintext, decrypted from plaintext.
|
||||
|
||||
`ciphertext` must be a list of 8 64-bit words.
|
||||
|
||||
"""
|
||||
key = self.key
|
||||
tweak = self.tweak
|
||||
state = ciphertext[:]
|
||||
|
||||
for r,s in izip(xrange(18,0,-1),cycle((16,0))):
|
||||
for y in xrange(8):
|
||||
state[y] = sub64(state[y], key[(r+y) % 9])
|
||||
state[5] = sub64(state[5], tweak[r % 3])
|
||||
state[6] = sub64(state[6], tweak[(r+1) % 3])
|
||||
state[7] = sub64(state[7], r)
|
||||
|
||||
for i in xrange(15,-1,-1):
|
||||
m,n = PERM[i]
|
||||
state[n] = RotR_64(state[m] ^ state[n], ROT[i+s])
|
||||
state[m] = sub64(state[m], state[n])
|
||||
|
||||
result = list(imap(sub64, state, key))
|
||||
result[5] = sub64(result[5], tweak[0])
|
||||
result[6] = sub64(result[6], tweak[1])
|
||||
return result
|
||||
100
lib/util_numpy.py
Normal file
100
lib/util_numpy.py
Normal file
@ -0,0 +1,100 @@
|
||||
# /usr/bin/env python
|
||||
# coding=utf-8
|
||||
|
||||
# Copyright 2010 Jonathan Bowman
|
||||
#
|
||||
# Licensed under the Apache License, Version 2.0 (the "License");
|
||||
# you may not use this file except in compliance with the License.
|
||||
# You may obtain a copy of the License at
|
||||
#
|
||||
# http://www.apache.org/licenses/LICENSE-2.0
|
||||
#
|
||||
# Unless required by applicable law or agreed to in writing, software
|
||||
# distributed under the License is distributed on an "AS IS" BASIS,
|
||||
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
|
||||
# implied. See the License for the specific language governing
|
||||
# permissions and limitations under the License.
|
||||
|
||||
"""Various helper functions for handling arrays, etc. using numpy"""
|
||||
|
||||
import struct
|
||||
from operator import xor, add as add64, sub as sub64
|
||||
import numpy as np
|
||||
|
||||
words = np.uint64
|
||||
bytelist = np.uint8
|
||||
bigint = np.uint64
|
||||
|
||||
# working out some differences between Python 2 and 3
|
||||
try:
|
||||
from itertools import imap, izip
|
||||
except ImportError:
|
||||
imap = map
|
||||
izip = zip
|
||||
try:
|
||||
xrange = xrange
|
||||
except:
|
||||
xrange = range
|
||||
|
||||
SKEIN_KS_PARITY = np.uint64(0x1BD11BDAA9FC1A22)
|
||||
|
||||
# zeroed out byte string and list for convenience and performance
|
||||
zero_bytes = struct.pack('64B', *[0] * 64)
|
||||
zero_words = np.zeros(8, dtype=np.uint64)
|
||||
|
||||
# Build structs for conversion appropriate to this system, favoring
|
||||
# native formats if possible for slight performance benefit
|
||||
words_format_tpl = "%dQ"
|
||||
if struct.pack('2B', 0, 1) == struct.pack('=H', 1): # big endian?
|
||||
words_format_tpl = "<" + words_format_tpl # force little endian
|
||||
else:
|
||||
try: # is 64-bit integer native?
|
||||
struct.unpack(words_format_tpl % 2, zero_bytes[:16])
|
||||
except(struct.error): # Use standard instead of native
|
||||
words_format_tpl = "=" + words_format_tpl
|
||||
|
||||
# build structs for one-, two- and eight-word sequences
|
||||
words_format = dict(
|
||||
(i,struct.Struct(words_format_tpl % i)) for i in (1,2,8))
|
||||
|
||||
def bytes2words(data, length=8):
|
||||
"""Return a list of `length` 64-bit words from `data`.
|
||||
|
||||
`data` must consist of `length` * 8 bytes.
|
||||
`length` must be 1, 2, or 8.
|
||||
|
||||
"""
|
||||
return(np.fromstring(data, dtype=np.uint64))
|
||||
|
||||
def words2bytes(data, length=8):
|
||||
"""Return a `length` * 8 byte string from `data`.
|
||||
|
||||
|
||||
`data` must be a list of `length` 64-bit words
|
||||
`length` must be 1, 2, or 8.
|
||||
|
||||
"""
|
||||
try:
|
||||
return(data.tostring())
|
||||
except AttributeError:
|
||||
return(np.uint64(data).tostring())
|
||||
|
||||
def RotL_64(x, N):
|
||||
"""Return `x` rotated left by `N`."""
|
||||
#return (x << np.uint64(N & 63)) | (x >> np.uint64((64-N) & 63))
|
||||
return(np.left_shift(x, (N & 63), dtype=np.uint64) |
|
||||
np.right_shift(x, ((64-N) & 63), dtype=np.uint64))
|
||||
|
||||
def RotR_64(x, N):
|
||||
"""Return `x` rotated right by `N`."""
|
||||
return(np.right_shift(x, (N & 63), dtype=np.uint64) |
|
||||
np.left_shift(x, ((64-N) & 63), dtype=np.uint64))
|
||||
|
||||
def add64(a,b):
|
||||
"""Return a 64-bit integer sum of `a` and `b`."""
|
||||
return(np.add(a, b, dtype=np.uint64))
|
||||
|
||||
def sub64(a,b):
|
||||
"""Return a 64-bit integer difference of `a` and `b`."""
|
||||
return(np.subtract(a, b, dtype=np.uint64))
|
||||
|
||||
Loading…
Reference in New Issue
Block a user