commit 56c4a8746f949423d05b9268f79bfe65724cc9e7
parent f0cb10132695706c6a63e7f546a4b28873346f6d
Author: ThomasV <thomasv@electrum.org>
Date: Tue, 26 Jan 2016 15:18:28 +0100
remove python implementation of ripemd160
Diffstat:
2 files changed, 3 insertions(+), 409 deletions(-)
diff --git a/lib/bitcoin.py b/lib/bitcoin.py
@@ -200,16 +200,9 @@ def i2o_ECPublicKey(pubkey, compressed=False):
############ functions from pywallet #####################
def hash_160(public_key):
- try:
- md = hashlib.new('ripemd160')
- md.update(sha256(public_key))
- return md.digest()
- except Exception:
- # not available in Android SL4a
- import ripemd
- md = ripemd.new(sha256(public_key))
- return md.digest()
-
+ md = hashlib.new('ripemd160')
+ md.update(sha256(public_key))
+ return md.digest()
def public_key_to_bc_address(public_key):
h160 = hash_160(public_key)
diff --git a/lib/ripemd.py b/lib/ripemd.py
@@ -1,399 +0,0 @@
-## ripemd.py - pure Python implementation of the RIPEMD-160 algorithm.
-## Bjorn Edstrom <be@bjrn.se> 16 december 2007.
-##
-## Copyrights
-## ==========
-##
-## This code is a derived from an implementation by Markus Friedl which is
-## subject to the following license. This Python implementation is not
-## subject to any other license.
-##
-##/*
-## * Copyright (c) 2001 Markus Friedl. All rights reserved.
-## *
-## * Redistribution and use in source and binary forms, with or without
-## * modification, are permitted provided that the following conditions
-## * are met:
-## * 1. Redistributions of source code must retain the above copyright
-## * notice, this list of conditions and the following disclaimer.
-## * 2. Redistributions in binary form must reproduce the above copyright
-## * notice, this list of conditions and the following disclaimer in the
-## * documentation and/or other materials provided with the distribution.
-## *
-## * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
-## * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
-## * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
-## * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
-## * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
-## * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-## * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-## * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-## * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
-## * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-## */
-##/*
-## * Preneel, Bosselaers, Dobbertin, "The Cryptographic Hash Function RIPEMD-160",
-## * RSA Laboratories, CryptoBytes, Volume 3, Number 2, Autumn 1997,
-## * ftp://ftp.rsasecurity.com/pub/cryptobytes/crypto3n2.pdf
-## */
-
-try:
- import psyco
- psyco.full()
-except ImportError:
- pass
-
-#block_size = 1
-digest_size = 20
-digestsize = 20
-
-class RIPEMD160:
- """Return a new RIPEMD160 object. An optional string argument
- may be provided; if present, this string will be automatically
- hashed."""
-
- def __init__(self, arg=None):
- self.ctx = RMDContext()
- if arg:
- self.update(arg)
- self.dig = None
-
- def update(self, arg):
- """update(arg)"""
- RMD160Update(self.ctx, arg, len(arg))
- self.dig = None
-
- def digest(self):
- """digest()"""
- if self.dig:
- return self.dig
- ctx = self.ctx.copy()
- self.dig = RMD160Final(self.ctx)
- self.ctx = ctx
- return self.dig
-
- def hexdigest(self):
- """hexdigest()"""
- dig = self.digest()
- hex_digest = ''
- for d in dig:
- hex_digest += '%02x' % ord(d)
- return hex_digest
-
- def copy(self):
- """copy()"""
- import copy
- return copy.deepcopy(self)
-
-
-
-def new(arg=None):
- """Return a new RIPEMD160 object. An optional string argument
- may be provided; if present, this string will be automatically
- hashed."""
- return RIPEMD160(arg)
-
-
-
-#
-# Private.
-#
-
-class RMDContext:
- def __init__(self):
- self.state = [0x67452301, 0xEFCDAB89, 0x98BADCFE,
- 0x10325476, 0xC3D2E1F0] # uint32
- self.count = 0 # uint64
- self.buffer = [0]*64 # uchar
- def copy(self):
- ctx = RMDContext()
- ctx.state = self.state[:]
- ctx.count = self.count
- ctx.buffer = self.buffer[:]
- return ctx
-
-K0 = 0x00000000
-K1 = 0x5A827999
-K2 = 0x6ED9EBA1
-K3 = 0x8F1BBCDC
-K4 = 0xA953FD4E
-
-KK0 = 0x50A28BE6
-KK1 = 0x5C4DD124
-KK2 = 0x6D703EF3
-KK3 = 0x7A6D76E9
-KK4 = 0x00000000
-
-def ROL(n, x):
- return ((x << n) & 0xffffffff) | (x >> (32 - n))
-
-def F0(x, y, z):
- return x ^ y ^ z
-
-def F1(x, y, z):
- return (x & y) | (((~x) % 0x100000000) & z)
-
-def F2(x, y, z):
- return (x | ((~y) % 0x100000000)) ^ z
-
-def F3(x, y, z):
- return (x & z) | (((~z) % 0x100000000) & y)
-
-def F4(x, y, z):
- return x ^ (y | ((~z) % 0x100000000))
-
-def R(a, b, c, d, e, Fj, Kj, sj, rj, X):
- a = ROL(sj, (a + Fj(b, c, d) + X[rj] + Kj) % 0x100000000) + e
- c = ROL(10, c)
- return a % 0x100000000, c
-
-PADDING = [0x80] + [0]*63
-
-import sys
-import struct
-
-def RMD160Transform(state, block): #uint32 state[5], uchar block[64]
- x = [0]*16
- if sys.byteorder == 'little':
- x = struct.unpack('<16L', ''.join([chr(x) for x in block[0:64]]))
- else:
- raise "Error!!"
- a = state[0]
- b = state[1]
- c = state[2]
- d = state[3]
- e = state[4]
-
- #/* Round 1 */
- a, c = R(a, b, c, d, e, F0, K0, 11, 0, x);
- e, b = R(e, a, b, c, d, F0, K0, 14, 1, x);
- d, a = R(d, e, a, b, c, F0, K0, 15, 2, x);
- c, e = R(c, d, e, a, b, F0, K0, 12, 3, x);
- b, d = R(b, c, d, e, a, F0, K0, 5, 4, x);
- a, c = R(a, b, c, d, e, F0, K0, 8, 5, x);
- e, b = R(e, a, b, c, d, F0, K0, 7, 6, x);
- d, a = R(d, e, a, b, c, F0, K0, 9, 7, x);
- c, e = R(c, d, e, a, b, F0, K0, 11, 8, x);
- b, d = R(b, c, d, e, a, F0, K0, 13, 9, x);
- a, c = R(a, b, c, d, e, F0, K0, 14, 10, x);
- e, b = R(e, a, b, c, d, F0, K0, 15, 11, x);
- d, a = R(d, e, a, b, c, F0, K0, 6, 12, x);
- c, e = R(c, d, e, a, b, F0, K0, 7, 13, x);
- b, d = R(b, c, d, e, a, F0, K0, 9, 14, x);
- a, c = R(a, b, c, d, e, F0, K0, 8, 15, x); #/* #15 */
- #/* Round 2 */
- e, b = R(e, a, b, c, d, F1, K1, 7, 7, x);
- d, a = R(d, e, a, b, c, F1, K1, 6, 4, x);
- c, e = R(c, d, e, a, b, F1, K1, 8, 13, x);
- b, d = R(b, c, d, e, a, F1, K1, 13, 1, x);
- a, c = R(a, b, c, d, e, F1, K1, 11, 10, x);
- e, b = R(e, a, b, c, d, F1, K1, 9, 6, x);
- d, a = R(d, e, a, b, c, F1, K1, 7, 15, x);
- c, e = R(c, d, e, a, b, F1, K1, 15, 3, x);
- b, d = R(b, c, d, e, a, F1, K1, 7, 12, x);
- a, c = R(a, b, c, d, e, F1, K1, 12, 0, x);
- e, b = R(e, a, b, c, d, F1, K1, 15, 9, x);
- d, a = R(d, e, a, b, c, F1, K1, 9, 5, x);
- c, e = R(c, d, e, a, b, F1, K1, 11, 2, x);
- b, d = R(b, c, d, e, a, F1, K1, 7, 14, x);
- a, c = R(a, b, c, d, e, F1, K1, 13, 11, x);
- e, b = R(e, a, b, c, d, F1, K1, 12, 8, x); #/* #31 */
- #/* Round 3 */
- d, a = R(d, e, a, b, c, F2, K2, 11, 3, x);
- c, e = R(c, d, e, a, b, F2, K2, 13, 10, x);
- b, d = R(b, c, d, e, a, F2, K2, 6, 14, x);
- a, c = R(a, b, c, d, e, F2, K2, 7, 4, x);
- e, b = R(e, a, b, c, d, F2, K2, 14, 9, x);
- d, a = R(d, e, a, b, c, F2, K2, 9, 15, x);
- c, e = R(c, d, e, a, b, F2, K2, 13, 8, x);
- b, d = R(b, c, d, e, a, F2, K2, 15, 1, x);
- a, c = R(a, b, c, d, e, F2, K2, 14, 2, x);
- e, b = R(e, a, b, c, d, F2, K2, 8, 7, x);
- d, a = R(d, e, a, b, c, F2, K2, 13, 0, x);
- c, e = R(c, d, e, a, b, F2, K2, 6, 6, x);
- b, d = R(b, c, d, e, a, F2, K2, 5, 13, x);
- a, c = R(a, b, c, d, e, F2, K2, 12, 11, x);
- e, b = R(e, a, b, c, d, F2, K2, 7, 5, x);
- d, a = R(d, e, a, b, c, F2, K2, 5, 12, x); #/* #47 */
- #/* Round 4 */
- c, e = R(c, d, e, a, b, F3, K3, 11, 1, x);
- b, d = R(b, c, d, e, a, F3, K3, 12, 9, x);
- a, c = R(a, b, c, d, e, F3, K3, 14, 11, x);
- e, b = R(e, a, b, c, d, F3, K3, 15, 10, x);
- d, a = R(d, e, a, b, c, F3, K3, 14, 0, x);
- c, e = R(c, d, e, a, b, F3, K3, 15, 8, x);
- b, d = R(b, c, d, e, a, F3, K3, 9, 12, x);
- a, c = R(a, b, c, d, e, F3, K3, 8, 4, x);
- e, b = R(e, a, b, c, d, F3, K3, 9, 13, x);
- d, a = R(d, e, a, b, c, F3, K3, 14, 3, x);
- c, e = R(c, d, e, a, b, F3, K3, 5, 7, x);
- b, d = R(b, c, d, e, a, F3, K3, 6, 15, x);
- a, c = R(a, b, c, d, e, F3, K3, 8, 14, x);
- e, b = R(e, a, b, c, d, F3, K3, 6, 5, x);
- d, a = R(d, e, a, b, c, F3, K3, 5, 6, x);
- c, e = R(c, d, e, a, b, F3, K3, 12, 2, x); #/* #63 */
- #/* Round 5 */
- b, d = R(b, c, d, e, a, F4, K4, 9, 4, x);
- a, c = R(a, b, c, d, e, F4, K4, 15, 0, x);
- e, b = R(e, a, b, c, d, F4, K4, 5, 5, x);
- d, a = R(d, e, a, b, c, F4, K4, 11, 9, x);
- c, e = R(c, d, e, a, b, F4, K4, 6, 7, x);
- b, d = R(b, c, d, e, a, F4, K4, 8, 12, x);
- a, c = R(a, b, c, d, e, F4, K4, 13, 2, x);
- e, b = R(e, a, b, c, d, F4, K4, 12, 10, x);
- d, a = R(d, e, a, b, c, F4, K4, 5, 14, x);
- c, e = R(c, d, e, a, b, F4, K4, 12, 1, x);
- b, d = R(b, c, d, e, a, F4, K4, 13, 3, x);
- a, c = R(a, b, c, d, e, F4, K4, 14, 8, x);
- e, b = R(e, a, b, c, d, F4, K4, 11, 11, x);
- d, a = R(d, e, a, b, c, F4, K4, 8, 6, x);
- c, e = R(c, d, e, a, b, F4, K4, 5, 15, x);
- b, d = R(b, c, d, e, a, F4, K4, 6, 13, x); #/* #79 */
-
- aa = a;
- bb = b;
- cc = c;
- dd = d;
- ee = e;
-
- a = state[0]
- b = state[1]
- c = state[2]
- d = state[3]
- e = state[4]
-
- #/* Parallel round 1 */
- a, c = R(a, b, c, d, e, F4, KK0, 8, 5, x)
- e, b = R(e, a, b, c, d, F4, KK0, 9, 14, x)
- d, a = R(d, e, a, b, c, F4, KK0, 9, 7, x)
- c, e = R(c, d, e, a, b, F4, KK0, 11, 0, x)
- b, d = R(b, c, d, e, a, F4, KK0, 13, 9, x)
- a, c = R(a, b, c, d, e, F4, KK0, 15, 2, x)
- e, b = R(e, a, b, c, d, F4, KK0, 15, 11, x)
- d, a = R(d, e, a, b, c, F4, KK0, 5, 4, x)
- c, e = R(c, d, e, a, b, F4, KK0, 7, 13, x)
- b, d = R(b, c, d, e, a, F4, KK0, 7, 6, x)
- a, c = R(a, b, c, d, e, F4, KK0, 8, 15, x)
- e, b = R(e, a, b, c, d, F4, KK0, 11, 8, x)
- d, a = R(d, e, a, b, c, F4, KK0, 14, 1, x)
- c, e = R(c, d, e, a, b, F4, KK0, 14, 10, x)
- b, d = R(b, c, d, e, a, F4, KK0, 12, 3, x)
- a, c = R(a, b, c, d, e, F4, KK0, 6, 12, x) #/* #15 */
- #/* Parallel round 2 */
- e, b = R(e, a, b, c, d, F3, KK1, 9, 6, x)
- d, a = R(d, e, a, b, c, F3, KK1, 13, 11, x)
- c, e = R(c, d, e, a, b, F3, KK1, 15, 3, x)
- b, d = R(b, c, d, e, a, F3, KK1, 7, 7, x)
- a, c = R(a, b, c, d, e, F3, KK1, 12, 0, x)
- e, b = R(e, a, b, c, d, F3, KK1, 8, 13, x)
- d, a = R(d, e, a, b, c, F3, KK1, 9, 5, x)
- c, e = R(c, d, e, a, b, F3, KK1, 11, 10, x)
- b, d = R(b, c, d, e, a, F3, KK1, 7, 14, x)
- a, c = R(a, b, c, d, e, F3, KK1, 7, 15, x)
- e, b = R(e, a, b, c, d, F3, KK1, 12, 8, x)
- d, a = R(d, e, a, b, c, F3, KK1, 7, 12, x)
- c, e = R(c, d, e, a, b, F3, KK1, 6, 4, x)
- b, d = R(b, c, d, e, a, F3, KK1, 15, 9, x)
- a, c = R(a, b, c, d, e, F3, KK1, 13, 1, x)
- e, b = R(e, a, b, c, d, F3, KK1, 11, 2, x) #/* #31 */
- #/* Parallel round 3 */
- d, a = R(d, e, a, b, c, F2, KK2, 9, 15, x)
- c, e = R(c, d, e, a, b, F2, KK2, 7, 5, x)
- b, d = R(b, c, d, e, a, F2, KK2, 15, 1, x)
- a, c = R(a, b, c, d, e, F2, KK2, 11, 3, x)
- e, b = R(e, a, b, c, d, F2, KK2, 8, 7, x)
- d, a = R(d, e, a, b, c, F2, KK2, 6, 14, x)
- c, e = R(c, d, e, a, b, F2, KK2, 6, 6, x)
- b, d = R(b, c, d, e, a, F2, KK2, 14, 9, x)
- a, c = R(a, b, c, d, e, F2, KK2, 12, 11, x)
- e, b = R(e, a, b, c, d, F2, KK2, 13, 8, x)
- d, a = R(d, e, a, b, c, F2, KK2, 5, 12, x)
- c, e = R(c, d, e, a, b, F2, KK2, 14, 2, x)
- b, d = R(b, c, d, e, a, F2, KK2, 13, 10, x)
- a, c = R(a, b, c, d, e, F2, KK2, 13, 0, x)
- e, b = R(e, a, b, c, d, F2, KK2, 7, 4, x)
- d, a = R(d, e, a, b, c, F2, KK2, 5, 13, x) #/* #47 */
- #/* Parallel round 4 */
- c, e = R(c, d, e, a, b, F1, KK3, 15, 8, x)
- b, d = R(b, c, d, e, a, F1, KK3, 5, 6, x)
- a, c = R(a, b, c, d, e, F1, KK3, 8, 4, x)
- e, b = R(e, a, b, c, d, F1, KK3, 11, 1, x)
- d, a = R(d, e, a, b, c, F1, KK3, 14, 3, x)
- c, e = R(c, d, e, a, b, F1, KK3, 14, 11, x)
- b, d = R(b, c, d, e, a, F1, KK3, 6, 15, x)
- a, c = R(a, b, c, d, e, F1, KK3, 14, 0, x)
- e, b = R(e, a, b, c, d, F1, KK3, 6, 5, x)
- d, a = R(d, e, a, b, c, F1, KK3, 9, 12, x)
- c, e = R(c, d, e, a, b, F1, KK3, 12, 2, x)
- b, d = R(b, c, d, e, a, F1, KK3, 9, 13, x)
- a, c = R(a, b, c, d, e, F1, KK3, 12, 9, x)
- e, b = R(e, a, b, c, d, F1, KK3, 5, 7, x)
- d, a = R(d, e, a, b, c, F1, KK3, 15, 10, x)
- c, e = R(c, d, e, a, b, F1, KK3, 8, 14, x) #/* #63 */
- #/* Parallel round 5 */
- b, d = R(b, c, d, e, a, F0, KK4, 8, 12, x)
- a, c = R(a, b, c, d, e, F0, KK4, 5, 15, x)
- e, b = R(e, a, b, c, d, F0, KK4, 12, 10, x)
- d, a = R(d, e, a, b, c, F0, KK4, 9, 4, x)
- c, e = R(c, d, e, a, b, F0, KK4, 12, 1, x)
- b, d = R(b, c, d, e, a, F0, KK4, 5, 5, x)
- a, c = R(a, b, c, d, e, F0, KK4, 14, 8, x)
- e, b = R(e, a, b, c, d, F0, KK4, 6, 7, x)
- d, a = R(d, e, a, b, c, F0, KK4, 8, 6, x)
- c, e = R(c, d, e, a, b, F0, KK4, 13, 2, x)
- b, d = R(b, c, d, e, a, F0, KK4, 6, 13, x)
- a, c = R(a, b, c, d, e, F0, KK4, 5, 14, x)
- e, b = R(e, a, b, c, d, F0, KK4, 15, 0, x)
- d, a = R(d, e, a, b, c, F0, KK4, 13, 3, x)
- c, e = R(c, d, e, a, b, F0, KK4, 11, 9, x)
- b, d = R(b, c, d, e, a, F0, KK4, 11, 11, x) #/* #79 */
-
- t = (state[1] + cc + d) % 0x100000000;
- state[1] = (state[2] + dd + e) % 0x100000000;
- state[2] = (state[3] + ee + a) % 0x100000000;
- state[3] = (state[4] + aa + b) % 0x100000000;
- state[4] = (state[0] + bb + c) % 0x100000000;
- state[0] = t % 0x100000000;
-
- pass
-
-
-def RMD160Update(ctx, inp, inplen):
- if type(inp) == str:
- inp = [ord(i)&0xff for i in inp]
-
- have = (ctx.count / 8) % 64
- need = 64 - have
- ctx.count += 8 * inplen
- off = 0
- if inplen >= need:
- if have:
- for i in xrange(need):
- ctx.buffer[have+i] = inp[i]
- RMD160Transform(ctx.state, ctx.buffer)
- off = need
- have = 0
- while off + 64 <= inplen:
- RMD160Transform(ctx.state, inp[off:]) #<---
- off += 64
- if off < inplen:
- # memcpy(ctx->buffer + have, input+off, len-off);
- for i in xrange(inplen - off):
- ctx.buffer[have+i] = inp[off+i]
-
-def RMD160Final(ctx):
- size = struct.pack("<Q", ctx.count)
- padlen = 64 - ((ctx.count / 8) % 64)
- if padlen < 1+8:
- padlen += 64
- RMD160Update(ctx, PADDING, padlen-8)
- RMD160Update(ctx, size, 8)
- return struct.pack("<5L", *ctx.state)
-
-
-assert '37f332f68db77bd9d7edd4969571ad671cf9dd3b' == \
- new('The quick brown fox jumps over the lazy dog').hexdigest()
-assert '132072df690933835eb8b6ad0b77e7b6f14acad7' == \
- new('The quick brown fox jumps over the lazy cog').hexdigest()
-assert '9c1185a5c5e9fc54612808977ee8f548b2258d31' == \
- new('').hexdigest()
