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secp256k1.py
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# -*- coding: utf-8 -*-
"""
@author: iceland
"""
import platform
import os
import sys
import ctypes
import math
import pickle
import base64
###############################################################################
N = 0xfffffffffffffffffffffffffffffffebaaedce6af48a03bbfd25e8cd0364141
Zero=b'\x04\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00'
#==============================================================================
if platform.system().lower().startswith('win'):
dir_path = os.path.dirname(os.path.realpath(__file__))
dllfile = dir_path + '/ice_secp256k1.dll'
if os.path.isfile(dllfile) == True:
pathdll = os.path.realpath(dllfile)
ice = ctypes.CDLL(pathdll)
else:
print('File {} not found'.format(dllfile))
elif platform.system().lower().startswith('lin'):
dir_path = os.path.dirname(os.path.realpath(__file__))
dllfile = dir_path + '/ice_secp256k1.so'
if os.path.isfile(dllfile) == True:
pathdll = os.path.realpath(dllfile)
ice = ctypes.CDLL(pathdll)
else:
print('File {} not found'.format(dllfile))
else:
print('[-] Unsupported Platform currently for ctypes dll method. Only [Windows and Linux] is working')
sys.exit()
###############################################################################
#==============================================================================
# Coin type
COIN_BTC = 0
COIN_BSV = 1
COIN_BTCD = 2
COIN_ARG = 3
COIN_AXE = 4
COIN_BC = 5
COIN_BCH = 6
COIN_BSD = 7
COIN_BTDX = 8
COIN_BTG = 9
COIN_BTX = 10
COIN_CHA = 11
COIN_DASH = 12
COIN_DCR = 13
COIN_DFC = 14
COIN_DGB = 15
COIN_DOGE = 16
COIN_FAI = 17
COIN_FTC = 18
COIN_GRS = 19
COIN_JBS = 20
COIN_LTC = 21
COIN_MEC = 22
COIN_MONA = 23
COIN_MZC = 24
COIN_PIVX = 25
COIN_POLIS= 26
COIN_RIC = 27
COIN_STRAT= 28
COIN_SMART= 29
COIN_VIA = 30
COIN_XMY = 31
COIN_ZEC = 32
COIN_ZCL = 33
COIN_ZERO = 34
COIN_ZEN = 35
COIN_TENT = 36
COIN_ZEIT = 37
COIN_VTC = 38
COIN_UNO = 39
COIN_SKC = 40
COIN_RVN = 41
COIN_PPC = 42
COIN_OMC = 43
COIN_OK = 44
COIN_NMC = 45
COIN_NLG = 46
COIN_LBRY = 47
COIN_DNR = 48
COIN_BWK = 49
#==============================================================================
# Mnem Lang [Only English is Enabled. No other Language Actiavted yet]
MNEM_EN = 0 # English
MNEM_JP = 1 # Japanese
MNEM_KR = 2 # Korean
MNEM_SP = 3 # Spanish
MNEM_CS = 4 # Chinese_simplified
MNEM_CT = 5 # Chinese_traditional
MNEM_FR = 6 # French
MNEM_IT = 7 # Italian
MNEM_CZ = 8 # Czech
MNEM_PT = 9 # Portuguese
#==============================================================================
ice.scalar_multiplication.argtypes = [ctypes.c_char_p, ctypes.c_char_p] # pvk,ret
#==============================================================================
ice.scalar_multiplications.argtypes = [ctypes.c_char_p, ctypes.c_int, ctypes.c_char_p] # pvk,len,ret
#==============================================================================
ice.get_x_to_y.argtypes = [ctypes.c_char_p, ctypes.c_bool, ctypes.c_char_p] # x,even,ret
#==============================================================================
ice.point_increment.argtypes = [ctypes.c_char_p, ctypes.c_char_p] # upub,ret
#==============================================================================
ice.point_negation.argtypes = [ctypes.c_char_p, ctypes.c_char_p] # upub,ret
#==============================================================================
ice.point_doubling.argtypes = [ctypes.c_char_p, ctypes.c_char_p] # upub,ret
#==============================================================================
ice.privatekey_to_coinaddress.argtypes = [ctypes.c_int, ctypes.c_int, ctypes.c_bool, ctypes.c_char_p] # intcoin,012,comp,pvk
ice.privatekey_to_coinaddress.restype = ctypes.c_void_p
#==============================================================================
ice.pubkey_to_coinaddress.argtypes = [ctypes.c_int, ctypes.c_int, ctypes.c_bool, ctypes.c_char_p] # intcoin,012,comp,upub
ice.pubkey_to_coinaddress.restype = ctypes.c_void_p
#==============================================================================
ice.privatekey_to_address.argtypes = [ctypes.c_int, ctypes.c_bool, ctypes.c_char_p] # 012,comp,pvk
ice.privatekey_to_address.restype = ctypes.c_void_p
#==============================================================================
ice.pubkey_to_p2wsh_address.argtypes = [ctypes.c_char_p] # upub
ice.pubkey_to_p2wsh_address.restype = ctypes.c_void_p
#==============================================================================
ice.hash_to_address.argtypes = [ctypes.c_int, ctypes.c_bool, ctypes.c_char_p] # 012,comp,hash
ice.hash_to_address.restype = ctypes.c_void_p
#==============================================================================
ice.pubkey_to_address.argtypes = [ctypes.c_int, ctypes.c_bool, ctypes.c_char_p] # 012,comp,upub
ice.pubkey_to_address.restype = ctypes.c_void_p
#==============================================================================
ice.privatekey_to_h160.argtypes = [ctypes.c_int, ctypes.c_bool, ctypes.c_char_p, ctypes.c_char_p] # 012,comp,pvk,ret
#==============================================================================
ice.privatekey_loop_h160.argtypes = [ctypes.c_ulonglong, ctypes.c_int, ctypes.c_bool, ctypes.c_char_p, ctypes.c_char_p] # num,012,comp,pvk,ret
#==============================================================================
ice.privatekey_loop_h160_sse.argtypes = [ctypes.c_ulonglong, ctypes.c_int, ctypes.c_bool, ctypes.c_char_p, ctypes.c_char_p] # num,012,comp,pvk,ret
#==============================================================================
ice.pubkey_to_h160.argtypes = [ctypes.c_int, ctypes.c_bool, ctypes.c_char_p, ctypes.c_char_p] # 012,comp,upub,ret
#==============================================================================
ice.pbkdf2_hmac_sha512_dll.argtypes = [ctypes.c_void_p, ctypes.c_void_p, ctypes.c_int] # ret, words, len
#==============================================================================
ice.pbkdf2_hmac_sha512_list.argtypes = [ctypes.c_void_p, ctypes.c_void_p, ctypes.c_ulonglong, ctypes.c_int, ctypes.c_ulonglong] # ret,words,len,mnem_size,total
#==============================================================================
ice.pub_endo1.argtypes = [ctypes.c_char_p, ctypes.c_char_p] # upub,ret
#==============================================================================
ice.pub_endo2.argtypes = [ctypes.c_char_p, ctypes.c_char_p] # upub,ret
#==============================================================================
ice.pubkey_isvalid.argtypes = [ctypes.c_char_p] #upub
ice.pubkey_isvalid.restype = ctypes.c_bool #True or False
#==============================================================================
ice.b58_encode.argtypes = [ctypes.c_char_p] # _h
ice.b58_encode.restype = ctypes.c_void_p
#==============================================================================
ice.b58_decode.argtypes = [ctypes.c_char_p] # addr
ice.b58_decode.restype = ctypes.c_void_p
#==============================================================================
ice.bech32_address_decode.argtypes = [ctypes.c_int, ctypes.c_char_p, ctypes.c_char_p] # coin,b32_addr,h160
#==============================================================================
ice.get_hmac_sha512.argtypes = [ctypes.c_char_p, ctypes.c_int, ctypes.c_char_p, ctypes.c_int, ctypes.c_char_p] # k, klen, mess, mess_len, ret
#==============================================================================
ice.get_sha512.argtypes = [ctypes.c_char_p, ctypes.c_int, ctypes.c_char_p] # input, len, ret
#==============================================================================
ice.mnem_to_masternode.argtypes = [ctypes.c_void_p, ctypes.c_int, ctypes.c_char_p] # words, len, ret
#==============================================================================
ice.create_valid_mnemonics.argtypes = [ctypes.c_void_p, ctypes.c_int, ctypes.c_int] # rbytes,len, lang
ice.create_valid_mnemonics.restype = ctypes.c_void_p
#==============================================================================
ice.get_sha256.argtypes = [ctypes.c_void_p, ctypes.c_int, ctypes.c_void_p] # input, len, ret
#==============================================================================
ice.get_sha256_iter.argtypes = [ctypes.c_void_p, ctypes.c_int, ctypes.c_void_p, ctypes.c_ulonglong] # input, len, ret, iter
#==============================================================================
ice.create_baby_table.argtypes = [ctypes.c_ulonglong, ctypes.c_ulonglong, ctypes.c_char_p] # start,end,ret
#==============================================================================
ice.point_addition.argtypes = [ctypes.c_char_p, ctypes.c_char_p, ctypes.c_char_p] # upub1,upub2,ret
#==============================================================================
ice.point_subtraction.argtypes = [ctypes.c_char_p, ctypes.c_char_p, ctypes.c_char_p] # upub1,upub2,ret
#==============================================================================
ice.point_loop_subtraction.argtypes = [ctypes.c_ulonglong, ctypes.c_char_p, ctypes.c_char_p, ctypes.c_char_p] # k,upub1,upub2,ret
#==============================================================================
ice.point_loop_addition.argtypes = [ctypes.c_ulonglong, ctypes.c_char_p, ctypes.c_char_p, ctypes.c_char_p] # k,upub1,upub2,ret
#==============================================================================
ice.point_vector_addition.argtypes = [ctypes.c_ulonglong, ctypes.c_char_p, ctypes.c_char_p, ctypes.c_char_p] # num,upubs1,upubs2,ret
#==============================================================================
ice.point_sequential_increment_P2.argtypes = [ctypes.c_ulonglong, ctypes.c_char_p, ctypes.c_char_p] # num,upub1,ret
#==============================================================================
ice.point_sequential_increment_P2_mcpu.argtypes = [ctypes.c_ulonglong, ctypes.c_char_p, ctypes.c_int, ctypes.c_char_p] # num,upub1,mcpu,ret
#==============================================================================
ice.point_sequential_increment.argtypes = [ctypes.c_ulonglong, ctypes.c_char_p, ctypes.c_char_p] # num,upub1,ret
#==============================================================================
ice.point_sequential_decrement.argtypes = [ctypes.c_ulonglong, ctypes.c_char_p, ctypes.c_char_p] # num,upub1,ret
#==============================================================================
ice.pubkeyxy_to_ETH_address.argtypes = [ctypes.c_char_p] # upub_xy
ice.pubkeyxy_to_ETH_address.restype = ctypes.c_void_p
#==============================================================================
ice.pubkeyxy_to_ETH_address_bytes.argtypes = [ctypes.c_char_p, ctypes.c_char_p] # upub_xy, ret
#==============================================================================
ice.privatekey_to_ETH_address.argtypes = [ctypes.c_char_p] # pvk
ice.privatekey_to_ETH_address.restype = ctypes.c_void_p
#==============================================================================
ice.privatekey_to_ETH_address_bytes.argtypes = [ctypes.c_char_p, ctypes.c_char_p] # pvk, ret
#==============================================================================
ice.privatekey_group_to_ETH_address.argtypes = [ctypes.c_char_p, ctypes.c_int] # pvk, m
ice.privatekey_group_to_ETH_address.restype = ctypes.c_void_p
#==============================================================================
ice.privatekey_group_to_ETH_address_bytes.argtypes = [ctypes.c_char_p, ctypes.c_int, ctypes.c_char_p] # pvk,m,ret
#==============================================================================
ice.init_P2_Group.argtypes = [ctypes.c_char_p] # upub
#==============================================================================
ice.free_memory.argtypes = [ctypes.c_void_p] # pointer
#==============================================================================
ice.bloom_check_add.argtypes = [ctypes.c_void_p, ctypes.c_int, ctypes.c_int, ctypes.c_ulonglong, ctypes.c_ubyte, ctypes.c_char_p] #buff, len, 0_1, _bits, _hashes, _bf
ice.bloom_check_add.restype = ctypes.c_int
#==============================================================================
ice.bloom_batch_add.argtypes = [ctypes.c_int, ctypes.c_void_p, ctypes.c_int, ctypes.c_int, ctypes.c_ulonglong, ctypes.c_ubyte, ctypes.c_char_p] #chunk, buff, len, 0_1, _bits, _hashes, _bf
#==============================================================================
ice.bloom_check_add_mcpu.argtypes = [ctypes.c_void_p, ctypes.c_ulonglong, ctypes.c_char_p, ctypes.c_int, ctypes.c_int, ctypes.c_int, ctypes.c_ulonglong, ctypes.c_ubyte, ctypes.c_char_p] #buff, num_items, found_array, len, mcpu, 0_1, _bits, _hashes, _bf
#==============================================================================
ice.test_bit_set_bit.argtypes = [ctypes.c_char_p, ctypes.c_ulonglong, ctypes.c_int] #_bf, _bits, 0_1
#==============================================================================
ice.create_bsgs_bloom_mcpu.argtypes = [ctypes.c_int, ctypes.c_ulonglong, ctypes.c_ulonglong, ctypes.c_ubyte, ctypes.c_char_p] #mcpu, num_items, _bits, _hashes, _bf
#==============================================================================
ice.bsgs_2nd_check_prepare.argtypes = [ctypes.c_ulonglong] # bP_elem
#==============================================================================
ice.bsgs_2nd_check.argtypes = [ctypes.c_char_p, ctypes.c_char_p, ctypes.c_ulonglong, ctypes.c_char_p] # upub, z1, bP_elem, ret
ice.bsgs_2nd_check.restype = ctypes.c_bool #True or False
#==============================================================================
ice.Load_data_to_memory.argtypes = [ctypes.c_char_p, ctypes.c_bool] #sorted_bin_file_h160, verbose
#==============================================================================
ice.check_collision.argtypes = [ctypes.c_char_p] #h160
ice.check_collision.restype = ctypes.c_bool #True or False
ice.init_secp256_lib()
#==============================================================================
###############################################################################
def version():
ice.version()
#==============================================================================
def _scalar_multiplication(pvk_int):
''' Integer value passed to function. 65 bytes uncompressed pubkey output '''
res = (b'\x00') * 65
pass_int_value = fl(pvk_int).encode('utf8')
ice.scalar_multiplication(pass_int_value, res)
return res
def scalar_multiplication(pvk_int):
if pvk_int < 0: pvk_int = N+pvk_int
res = _scalar_multiplication(pvk_int)
return bytes(bytearray(res))
#==============================================================================
def _scalar_multiplications(pvk_int_list):
''' Integer list passed to function. 65*len bytes uncompressed pubkey output. No Zero Point handling '''
sz = len(pvk_int_list)
res = (b'\x00') * (65 * sz)
pvks = b''.join(pvk_int_list)
ice.scalar_multiplications(pvks, sz, res)
return res
def scalar_multiplications(pvk_int_list):
pvk_int_list = [bytes.fromhex(fl(N+i)) if i < 0 else bytes.fromhex(fl(i)) for i in pvk_int_list]
res = _scalar_multiplications(pvk_int_list)
return bytes(bytearray(res))
#==============================================================================
# =============================================================================
# def point_multiplication(k, P):
# ''' k=scalar. P = Input Point. Output is 65 bytes uncompressed pubkey '''
# if type(P) == int: k,P = P,k
# def bits(k):
# while k:
# yield k & 1
# k >>= 1
# result = Zero
# addend = P
# for bit in bits(k):
# if bit == 1: result=point_addition(result,addend)
# addend=point_doubling(addend)
# return result
# =============================================================================
#==============================================================================
def _point_multiplication(pubkey_bytes, kk):
''' Input Point and Integer value passed to function. 65 bytes uncompressed pubkey output '''
res = (b'\x00') * 65
bytes_value = bytes.fromhex(hex(kk)[2:].zfill(64)) # strict 32 bytes scalar
ice.point_multiplication(pubkey_bytes, bytes_value, res)
return res
def point_multiplication(P, k):
if type(P) == int: k,P = P,k
res = _point_multiplication(P, k)
return bytes(bytearray(res))
#==============================================================================
def _get_x_to_y(x_hex, is_even):
''' Input x_hex encoded as bytes and bool is_even. 32 bytes y of point output '''
res = (b'\x00') * 32
ice.get_x_to_y(x_hex.encode('utf8'), is_even, res)
return res
def get_x_to_y(x_hex, is_even):
res = _get_x_to_y(x_hex, is_even)
return bytes(bytearray(res))
#==============================================================================
def _point_increment(pubkey_bytes):
res = (b'\x00') * 65
ice.point_increment(pubkey_bytes, res)
return res
def point_increment(pubkey_bytes):
res = _point_increment(pubkey_bytes)
return bytes(bytearray(res))
#==============================================================================
def _point_negation(pubkey_bytes):
res = (b'\x00') * 65
ice.point_negation(pubkey_bytes, res)
return res
def point_negation(pubkey_bytes):
res = _point_negation(pubkey_bytes)
return bytes(bytearray(res))
#==============================================================================
def _point_doubling(pubkey_bytes):
res = (b'\x00') * 65
ice.point_doubling(pubkey_bytes, res)
return res
def point_doubling(pubkey_bytes):
res = _point_doubling(pubkey_bytes)
return bytes(bytearray(res))
#==============================================================================
def init_P2_Group(pubkey_bytes):
ice.init_P2_Group(pubkey_bytes)
#==============================================================================
def privatekey_to_coinaddress(coin_type, addr_type, iscompressed, pvk_int):
# type = 0 [p2pkh], 1 [p2sh], 2 [bech32]
if pvk_int < 0: pvk_int = N+pvk_int
pass_int_value = fl(pvk_int).encode('utf8')
res = ice.privatekey_to_coinaddress(coin_type, addr_type, iscompressed, pass_int_value)
addr = (ctypes.cast(res, ctypes.c_char_p).value).decode('utf8')
ice.free_memory(res)
return addr
#==============================================================================
def pubkey_to_coinaddress(coin_type, addr_type, iscompressed, pubkey_bytes):
# type = 0 [p2pkh], 1 [p2sh], 2 [bech32]
res = ice.pubkey_to_coinaddress(coin_type, addr_type, iscompressed, pubkey_bytes)
addr = (ctypes.cast(res, ctypes.c_char_p).value).decode('utf8')
ice.free_memory(res)
return addr
#==============================================================================
def privatekey_to_address(addr_type, iscompressed, pvk_int):
# type = 0 [p2pkh], 1 [p2sh], 2 [bech32]
if pvk_int < 0: pvk_int = N+pvk_int
pass_int_value = fl(pvk_int).encode('utf8')
res = ice.privatekey_to_address(addr_type, iscompressed, pass_int_value)
addr = (ctypes.cast(res, ctypes.c_char_p).value).decode('utf8')
ice.free_memory(res)
return addr
#==============================================================================
def hash_to_address(addr_type, iscompressed, hash160_bytes):
# type = 0 [p2pkh], 1 [p2sh], 2 [bech32]
res = ice.hash_to_address(addr_type, iscompressed, hash160_bytes)
addr = (ctypes.cast(res, ctypes.c_char_p).value).decode('utf8')
ice.free_memory(res)
return addr
#==============================================================================
def pubkey_to_address(addr_type, iscompressed, pubkey_bytes):
# type = 0 [p2pkh], 1 [p2sh], 2 [bech32]
res = ice.pubkey_to_address(addr_type, iscompressed, pubkey_bytes)
addr = (ctypes.cast(res, ctypes.c_char_p).value).decode('utf8')
ice.free_memory(res)
return addr
#==============================================================================
def pubkey_to_p2wsh_address(pubkey_bytes):
# [bech32 p2wsh]
res = ice.pubkey_to_p2wsh_address(pubkey_bytes)
addr = (ctypes.cast(res, ctypes.c_char_p).value).decode('utf8')
ice.free_memory(res)
return addr
#==============================================================================
def _privatekey_to_h160(addr_type, iscompressed, pvk_int):
# type = 0 [p2pkh], 1 [p2sh], 2 [bech32]
if pvk_int < 0: pvk_int = N+pvk_int
pass_int_value = fl(pvk_int).encode('utf8')
res = (b'\x00') * 20
ice.privatekey_to_h160(addr_type, iscompressed, pass_int_value, res)
return res
def privatekey_to_h160(addr_type, iscompressed, pvk_int):
res = _privatekey_to_h160(addr_type, iscompressed, pvk_int)
return bytes(bytearray(res))
#==============================================================================
def _privatekey_loop_h160(num, addr_type, iscompressed, pvk_int):
# type = 0 [p2pkh], 1 [p2sh], 2 [bech32]
if pvk_int < 0: pvk_int = N+pvk_int
pass_int_value = fl(pvk_int).encode('utf8')
res = (b'\x00') * (20 * num)
ice.privatekey_loop_h160(num, addr_type, iscompressed, pass_int_value, res)
return res
def privatekey_loop_h160(num, addr_type, iscompressed, pvk_int):
if num <= 0: num = 1
res = _privatekey_loop_h160(num, addr_type, iscompressed, pvk_int)
return bytes(bytearray(res))
#==============================================================================
def _privatekey_loop_h160_sse(num, addr_type, iscompressed, pvk_int):
# type = 0 [p2pkh], 1 [p2sh], 2 [bech32]
if pvk_int < 0: pvk_int = N+pvk_int
pass_int_value = fl(pvk_int).encode('utf8')
res = (b'\x00') * (20 * num)
ice.privatekey_loop_h160_sse(num, addr_type, iscompressed, pass_int_value, res)
return res
def privatekey_loop_h160_sse(num, addr_type, iscompressed, pvk_int):
if num <= 0: num = 1
res = _privatekey_loop_h160_sse(num, addr_type, iscompressed, pvk_int)
return bytes(bytearray(res))
#==============================================================================
def _pubkey_to_h160(addr_type, iscompressed, pubkey_bytes):
# type = 0 [p2pkh], 1 [p2sh], 2 [bech32]
res = (b'\x00') * 20
ice.pubkey_to_h160(addr_type, iscompressed, pubkey_bytes, res)
return res
def pubkey_to_h160(addr_type, iscompressed, pubkey_bytes):
res = _pubkey_to_h160(addr_type, iscompressed, pubkey_bytes)
return bytes(bytearray(res))
#==============================================================================
def _pub_endo1(pubkey_bytes):
res = (b'\x00') * 65
ice.pub_endo1(pubkey_bytes, res)
return res
def pub_endo1(pubkey_bytes):
res = _pub_endo1(pubkey_bytes)
return bytes(bytearray(res))
#==============================================================================
def _pub_endo2(pubkey_bytes):
res = (b'\x00') * 65
ice.pub_endo2(pubkey_bytes, res)
return res
def pub_endo2(pubkey_bytes):
res = _pub_endo2(pubkey_bytes)
return bytes(bytearray(res))
#==============================================================================
def pubkey_isvalid(pubkey_bytes):
''' check if the pubkey is on the curve '''
is_valid = ice.pubkey_isvalid(pubkey_bytes)
return is_valid
#==============================================================================
def one_to_6pubkey(pubkey_bytes):
# Pubkey = [x,y] [x*beta%p, y] [x*beta2%p, y] [x,p-y] [x*beta%p, p-y] [x*beta2%p, p-y]
# beta = 0x7ae96a2b657c07106e64479eac3434e99cf0497512f58995c1396c28719501ee
# beta2 = 0x851695d49a83f8ef919bb86153cbcb16630fb68aed0a766a3ec693d68e6afa40 # beta*beta
P1 = pubkey_bytes
P2 = pub_endo1(pubkey_bytes)
P3 = pub_endo2(pubkey_bytes)
P4 = point_negation(pubkey_bytes)
P5 = pub_endo1(P4)
P6 = pub_endo2(P4)
return P1, P2, P3, P4, P5, P6
#==============================================================================
def one_to_6privatekey(pvk_int):
lmda = 0x5363ad4cc05c30e0a5261c028812645a122e22ea20816678df02967c1b23bd72
lmda2 = 0xac9c52b33fa3cf1f5ad9e3fd77ed9ba4a880b9fc8ec739c2e0cfc810b51283ce # lmda*lmda
#print('PVK1 : ', hex(pvk_int)[2:].zfill(64))
#print('PVK2 : ', hex(pvk_int*lmda%N)[2:].zfill(64))
#print('PVK3 : ', hex(pvk_int*lmda2%N)[2:].zfill(64))
#print('PVK4 : ', hex(N-pvk_int)[2:].zfill(64))
#print('PVK5 : ', hex(N-pvk_int*lmda%N)[2:].zfill(64))
#print('PVK6 : ', hex(N-pvk_int*lmda2%N)[2:].zfill(64))
return pvk_int, pvk_int*lmda%N, pvk_int*lmda2%N, N-pvk_int, N-pvk_int*lmda%N, N-pvk_int*lmda2%N
#==============================================================================
def b58py(data):
B58 = "123456789ABCDEFGHJKLMNPQRSTUVWXYZabcdefghijkmnopqrstuvwxyz"
if data[0] == 0:
return "1" + b58py(data[1:])
x = sum([v * (256 ** i) for i, v in enumerate(data[::-1])])
ret = ""
while x > 0:
ret = B58[x % 58] + ret
x = x // 58
return ret
#==============================================================================
def b58_encode(inp_bytes):
res = ice.b58_encode(inp_bytes, len(inp_bytes))
addr = (ctypes.cast(res, ctypes.c_char_p).value).decode('utf8')
ice.free_memory(res)
return addr
#==============================================================================
def b58_decode(inp):
res = ice.b58_decode(inp.encode("utf-8"))
addr = (ctypes.cast(res, ctypes.c_char_p).value).decode('utf8')
ice.free_memory(res)
return addr
#==============================================================================
def bech32_address_decode(addr, coin_type=0):
''' Input address in String format. Output h160 in hex string format
[Note] p2wsh = bech32(sha256(21 + pubkey + ac)). So Decoding it not Needed '''
if len(addr) > 50:
h160 = (b'\x00') * 32 # Bech32 p2wsh case
else: h160 = (b'\x00') * 20 # Bech32 p2wpkh case
ice.bech32_address_decode(coin_type, addr.encode("utf-8"), h160)
return bytes(bytearray(h160)).hex()
#==============================================================================
def address_to_h160(p2pkh):
''' Input address in String format. Output h160 in hex string format'''
h1 = b58_decode(p2pkh)
return h1[2:-8]
#==============================================================================
def btc_wif_to_pvk_hex(wif):
pvk = ''
if wif[0] == '5':
pvk = b58_decode(wif)[2:-8]
elif wif[0] in ['L', 'K']:
pvk = b58_decode(wif)[2:-10]
else: print('[Error] Incorrect WIF Key')
return pvk
#==============================================================================
def btc_wif_to_pvk_int(wif):
pvk = ''
pvk_hex = btc_wif_to_pvk_hex(wif)
if pvk_hex != '': pvk = int(pvk_hex, 16)
return pvk
#==============================================================================
def btc_pvk_to_wif(pvk, is_compressed=True):
''' Input Privatekey can in any 1 of these [Integer] [Hex] [Bytes] form'''
inp = ''
suff = '01' if is_compressed == True else ''
if type(pvk) in [int, str]: inp = bytes.fromhex('80' + fl(pvk) + suff)
elif type(pvk) == bytes: inp = b'\x80' + fl(pvk) + bytes.fromhex(suff)
else: print("[Error] Input Privatekey format [Integer] [Hex] [Bytes] allowed only")
if inp != '':
res = get_sha256(inp)
res2 = get_sha256(res)
return b58_encode(inp + res2[:4])
else: return inp
#==============================================================================
def checksum(inp):
''' Input string output double sha256 checksum 4 bytes'''
res = get_sha256(inp)
res2 = get_sha256(res)
return res2[:4]
#==============================================================================
def chunks(s, sz=65):
for start in range(0, len(s), sz):
yield s[start : start + sz]
#==============================================================================
def inv(a):
return pow(a, N - 2, N)
#==============================================================================
def msg_magic(message):
lm = len(message)
a = ((lm.to_bytes(1, 'little') if lm < 0xFD else b'\xFD' + lm.to_bytes(2, 'little'))
if lm <= 0xFFFF else b'\xFE' + lm.to_bytes(4, 'little')) if lm <=0xFFFFFFFF else b'\xFF' + lm.to_bytes(8, 'little')
return b'\x18Bitcoin Signed Message:\n' + a + message.encode('utf-8')
#==============================================================================
def verify_message(address, signature, message):
out = _verify_message(address, signature, message)
if out == False:
print(f"Message Failed to verify from Address: {address}")
else:
r, s, z, is_compress, RP, pubkey = out
print(f'Rpoint: {RP.hex()}')
print(f'r : {hex(r)[2:]}')
print(f's : {hex(s)[2:]}')
print(f'z : {hex(z)[2:]}')
print(f'PubKey : {pubkey}')
print(f'Address : {address}')
print('\nsignature is Valid and Address is Verified.\n')
print('-----BEGIN BITCOIN SIGNED MESSAGE-----')
print(message)
print('-----BEGIN BITCOIN SIGNATURE-----')
print(address)
print(signature)
print('-----END BITCOIN SIGNATURE-----')
#==============================================================================
def _verify_message(address, signature, message):
""" See http://www.secg.org/download/aid-780/sec1-v2.pdf for the math """
sig = base64.b64decode(signature)
hd, r, s = sig[0], int.from_bytes(sig[1:33], 'big'), int.from_bytes(sig[33:], 'big')
msb = msg_magic(message)
z = int.from_bytes(get_sha256(get_sha256(msb)), 'big')
RP1 = pub2upub('02' + hex(r)[2:].zfill(64))
RP2 = pub2upub('03' + hex(r)[2:].zfill(64))
sdr = (s * inv(r)) % N
zdr = (z * inv(r)) % N
FF1 = point_subtraction( point_multiplication(RP1, sdr),
scalar_multiplication(zdr) )
FF2 = point_subtraction( point_multiplication(RP2, sdr),
scalar_multiplication(zdr) )
if address[0] == '1': #p2pkh compressed or uncompressed
if address == pubkey_to_address(0, True, FF1):
return r, s, z, True, RP1, point_to_cpub(FF1)
if address == pubkey_to_address(0, False, FF1):
return r, s, z, False, RP1, FF1.hex()[2:]
if address[0] == '3': #p2sh compressed
if address == pubkey_to_address(1, True, FF1):
return r, s, z, True, RP1, point_to_cpub(FF1)
if address[0] == 'b': #bech32 compressed
if address == pubkey_to_address(2, True, FF1):
return r, s, z, True, RP1, point_to_cpub(FF1)
if address[0] == '1': #p2pkh compressed or uncompressed
if address == pubkey_to_address(0, True, FF2):
return r, s, z, True, RP2, point_to_cpub(FF2)
if address == pubkey_to_address(0, False, FF2):
return r, s, z, False, RP2, FF2.hex()[2:]
if address[0] == '3': #p2sh compressed
if address == pubkey_to_address(1, True, FF2):
return r, s, z, True, RP2, point_to_cpub(FF2)
if address[0] == 'b': #bech32 compressed
if address == pubkey_to_address(2, True, FF2):
return r, s, z, True, RP2, point_to_cpub(FF2)
return False
#==============================================================================
def fl(sstr, length=64):
''' Fill input to exact 32 bytes. If input is int or str the return is str. if input is bytes return is bytes'''
if type(sstr) == int: fixed = hex(sstr)[2:].zfill(length)
elif type(sstr) == str: fixed = sstr[2:].zfill(length) if sstr[:2].lower() == '0x' else sstr.zfill(length)
elif type(sstr) == bytes: fixed = (b'\x00') * (32 - len(sstr)) + sstr
else: print("[Error] Input format [Integer] [Hex] [Bytes] allowed only. Detected : ", type(sstr))
return fixed
#==============================================================================
def create_valid_mnemonics(strength = 128, lang = MNEM_EN):
# valid_entropy_bits = [128, 160, 192, 224, 256]
if strength not in [128, 160, 192, 224, 256]:
return 'Invalid strength'
rbytes = os.urandom(strength // 8)
res = ice.create_valid_mnemonics(rbytes, len(rbytes), lang)
mnem = (ctypes.cast(res, ctypes.c_char_p).value).decode('utf8')
ice.free_memory(res)
return mnem
#==============================================================================
def pbkdf2_hmac_sha512_dll(words):
seed_bytes = (b'\x00') * 64
# words = 'good push broken people salad bar mad squirrel joy dismiss merge jeans token wear boring manual doll near sniff turtle sunset lend invest foil'
ice.pbkdf2_hmac_sha512_dll(seed_bytes, words.encode("utf-8"), len(words))
return bytes(bytearray(seed_bytes))
#==============================================================================
def pbkdf2_hmac_sha512_list(words_list):
''' strength is [12, 18, 24]. words_list is a list of strings with each line having valid mnemonics'''
wl = len(words_list)
strength = len(words_list[0].split())
words = ' '.join(words_list)
seed_bytes = (b'\x00') * (64 * wl)
# words = 'good push broken people salad bar mad squirrel joy dismiss merge jeans token wear boring manual doll near sniff turtle sunset lend invest foil'
ice.pbkdf2_hmac_sha512_list(seed_bytes, words.encode("utf-8"), len(words), strength, wl)
return bytes(bytearray(seed_bytes))
#==============================================================================
def mnemonics_to_bip32masternode(words):
digest_bytes = (b'\x00') * 64
ice.mnem_to_masternode(words.encode("utf-8"), len(words), digest_bytes)
key, chain_code = digest_bytes[:32], digest_bytes[32:]
return key, chain_code
#==============================================================================
def bip39seed_to_bip32masternode(seed):
h = hmac_sha512(b'Bitcoin seed', seed)
key, chain_code = h[:32], h[32:]
return key, chain_code
#==============================================================================
def _p2i(x = "44'"):
if "'" in x: return 0x80000000 + int(x[:-1])
else: return int(x)
def _parse_derivation_path(str_derivation_path="m/44'/60'/0'/0/0"): # 60' is for ETH 0' is for BTC
path = []
sdp = str_derivation_path.replace(" ", "")
if sdp[0:2] != 'm/':
raise ValueError("Can't recognize derivation path. It should look like \"m/44'/0'/0'/0\".")
for i in sdp.lstrip('m/').split('/'):
path.append(_p2i(i))
return [path] # return a list of list
def parse_derivation_path(str_derivation_path_range="m/44'/60'/0'/0/(0-5)"): # 60' is for ETH 0' is for BTC
if str_derivation_path_range.count("(") == 0: # No range, only single value
return _parse_derivation_path(str_derivation_path_range)
def deplist(i = "(0-3)"):
if i[0] == '(': # It is a range of values
flgh = False
if i[-1] == "'":
flgh = True
dr = [int(x) for x in i.lstrip('(').rstrip(")'").split('-')]
else:
dr = [int(x) for x in i.lstrip('(').rstrip(')').split('-')]
return [str(i)+"'" if flgh else str(i) for i in range(dr[0], dr[1]+1)] # +1 to include the last element
sdp = str_derivation_path_range.replace(" ", "")
og = sdp.lstrip('m/').split('/')
path = [_p2i(x) for x in og[:-1]] # Leaving last element of range childpath
return path, deplist( og[-1] ) # A tuple of (first 4 values and list for last value range)
#==============================================================================
def derive_bip32childkey(parent_key, parent_chain_code, i):
assert len(parent_key) == 32
assert len(parent_chain_code) == 32
k = parent_chain_code
if (i & 0x80000000) != 0:
key = b'\x00' + parent_key
else:
key = bytes.fromhex(point_to_cpub(scalar_multiplication(int.from_bytes(parent_key, byteorder='big'))))
d = key + bytes.fromhex(hex(i)[2:].zfill(8))
while True:
h = hmac_sha512(k, d)
key, chain_code = h[:32], h[32:]
a = int.from_bytes(key, byteorder='big')
b = int.from_bytes(parent_key, byteorder='big')
key = (a + b) % N
if a < N and key != 0:
key = key.to_bytes(32, byteorder='big')
break
d = b'\x01' + h[32:] + bytes.fromhex(hex(i)[2:].zfill(8))
return key, chain_code
#==============================================================================
def bip39seed_to_privatekey(bip39seed, str_derivation_path = "m/44'/0'/0'/0/0"): # ' is Hardened otherwise Normal
# suports single "m/44'/0'/0'/0/0" and range of child "m/44'/0'/0'/0/(11-21)"
derivation_path = parse_derivation_path(str_derivation_path)
master_private_key, master_chain_code = bip39seed_to_bip32masternode(bip39seed)
private_key, chain_code = master_private_key, master_chain_code
for i in derivation_path[0]: # All values for single case. In case of range Except last element.
# parent_fingerprint = fingerprint_from_pvk(int(private_key.hex(), 16))
# child_number_bytes = bytes.fromhex(hex(i)[2:])
# depth_byte : starts from 1 2 3 4 5
private_key, chain_code = derive_bip32childkey(private_key, chain_code, i)
if len(derivation_path) == 2: # check if range case
pvklist = []
for i in derivation_path[1]:
# parent_fingerprint = fingerprint_from_pvk(int(private_key.hex(), 16))
# child_number_bytes = bytes.fromhex(hex(i)[2:])
# depth_byte = b'\05' # this one is Last
tpvk, _ = derive_bip32childkey(private_key, chain_code, _p2i(i))
pvklist.append(tpvk)
return pvklist # list of bytes
return private_key # bytes
#==============================================================================
def mnem_to_privatekey(words, str_derivation_path = "m/44'/0'/0'/0/0"): # ' is Hardened otherwise Normal
# suports single "m/44'/0'/0'/0/0" and range of child "m/44'/0'/0'/0/(11-21)"
seed = pbkdf2_hmac_sha512_dll(words)
return bip39seed_to_privatekey(seed, str_derivation_path) # either bytes or list of bytes
#==============================================================================
def mnem_to_address(words, addr_type, iscompressed, str_derivation_path = "m/44'/0'/0'/0/0"): # ' is Hardened otherwise Normal
# suports single "m/44'/0'/0'/0/0" and range of child "m/44'/0'/0'/0/(11-21)"
seed = pbkdf2_hmac_sha512_dll(words)
pvks = bip39seed_to_privatekey(seed, str_derivation_path) # either bytes or list of bytes
if type(pvks) == list:
return [privatekey_to_address(addr_type, iscompressed, int(line.hex(), 16)) for line in pvks] # list of addresses
return privatekey_to_address(addr_type, iscompressed, int(pvks.hex(), 16)) # single address
#==============================================================================
def fingerprint_from_pvk(k): # input int key
return privatekey_to_h160(0, True, k)[:4]
#==============================================================================
def root_key(master_private_key, master_chain_code, version = '0488ade4'):
'''This same function can be modified for getting xprv, xpub of extended keys.
Need to return also the parent_fingerprint, child_number_bytes, depth_byte to use here
'''
version_bytes = bytes.fromhex(version) # Mainnet [Private: '0488ade4'] [Public: '0488b21e']
key_bytes = b'\x00' + master_private_key
# version_bytes, depth_byte, parent_fingerprint, child_number_bytes, master_chain_code, key_bytes
inp = version_bytes + b'\x00' + b'\x00' * 4 + b'\x00' * 4 + master_chain_code + key_bytes
xp = b58_encode(inp + checksum(inp))
return xp
#==============================================================================
def hmac_sha512(key_bytes, message_bytes):
digest_bytes = (b'\x00') * 64
if type(key_bytes) == str: key_bytes = key_bytes.encode("utf-8")
if type(message_bytes) == str: message_bytes = message_bytes.encode("utf-8")
ice.get_hmac_sha512(key_bytes, len(key_bytes), message_bytes, len(message_bytes), digest_bytes)
return bytes(bytearray(digest_bytes))
#==============================================================================
def sha512(input_bytes):
digest_bytes = (b'\x00') * 64
if type(input_bytes) == str: input_bytes = input_bytes.encode("utf-8")
ice.get_sha512(input_bytes, len(input_bytes), digest_bytes)
return bytes(bytearray(digest_bytes))
#==============================================================================
def get_sha256(input_bytes):
digest_bytes = (b'\x00') * 32
if type(input_bytes) == str: input_bytes = input_bytes.encode("utf-8")
# MiniKey example
ice.get_sha256(input_bytes, len(input_bytes), digest_bytes)
return bytes(bytearray(digest_bytes))
#==============================================================================
def get_sha256_iter(input_bytes, iteration = 1):
digest_bytes = (b'\x00') * 32
if type(input_bytes) == str: input_bytes = input_bytes.encode("utf-8")
ice.get_sha256_iter(input_bytes, len(input_bytes), digest_bytes, iteration)
return bytes(bytearray(digest_bytes))
#==============================================================================
def create_baby_table(start_value, end_value):
res = (b'\x00') * ((1+end_value-start_value) * 32)
ice.create_baby_table(start_value, end_value, res)
return bytes(bytearray(res))
#==============================================================================
def _point_addition(pubkey1_bytes, pubkey2_bytes):
res = (b'\x00') * 65
ice.point_addition(pubkey1_bytes, pubkey2_bytes, res)
return res
def point_addition(pubkey1_bytes, pubkey2_bytes):
res = _point_addition(pubkey1_bytes, pubkey2_bytes)
return bytes(bytearray(res))
#==============================================================================
def _point_subtraction(pubkey1_bytes, pubkey2_bytes):
res = (b'\x00') * 65
ice.point_subtraction(pubkey1_bytes, pubkey2_bytes, res)
return res
def point_subtraction(pubkey1_bytes, pubkey2_bytes):
res = _point_subtraction(pubkey1_bytes, pubkey2_bytes)
return bytes(bytearray(res))
#==============================================================================
def _point_loop_subtraction(num, pubkey1_bytes, pubkey2_bytes):
res = (b'\x00') * (65 * num)
ice.point_loop_subtraction(num, pubkey1_bytes, pubkey2_bytes, res)
return res
def point_loop_subtraction(num, pubkey1_bytes, pubkey2_bytes):
''' Continuously subtracting point2 into point1 in a loop of num times.
Output is array of pubkeys P1-P2, P1-2P2, P1-3P2, P1-4P2....'''
if num <= 0: num = 1
res = _point_loop_subtraction(num, pubkey1_bytes, pubkey2_bytes)
return bytes(bytearray(res))
#==============================================================================
def _point_loop_addition(num, pubkey1_bytes, pubkey2_bytes):
res = (b'\x00') * (65 * num)
ice.point_loop_addition(num, pubkey1_bytes, pubkey2_bytes, res)
return res
def point_loop_addition(num, pubkey1_bytes, pubkey2_bytes):
''' Continuously adding point2 into point1 in a loop of num times.
Output is array of pubkeys P1+P2, P1+2P2, P1+3P2, P1+4P2....'''
if num <= 0: num = 1
res = _point_loop_addition(num, pubkey1_bytes, pubkey2_bytes)
return bytes(bytearray(res))
#==============================================================================
def _point_vector_addition(num, pubkeys1_bytes, pubkeys2_bytes):
res = (b'\x00') * (65 * num)
ice.point_vector_addition(num, pubkeys1_bytes, pubkeys2_bytes, res)
return res
def point_vector_addition(num, pubkeys1_bytes, pubkeys2_bytes):
''' Adding two array of points of equal length. '''
if num <= 0: num = 1
res = _point_vector_addition(num, pubkeys1_bytes, pubkeys2_bytes)
return bytes(bytearray(res))
#==============================================================================
def _point_sequential_increment_P2(num, pubkey1_bytes):
res = (b'\x00') * (65 * num)
ice.point_sequential_increment_P2(num, pubkey1_bytes, res)
return res
def point_sequential_increment_P2(num, pubkey1_bytes):
''' This is the fastest implementation to add point P2 in the given Point sequentially.'''
if num <= 0: num = 1
res = _point_sequential_increment_P2(num, pubkey1_bytes)
return bytes(bytearray(res))
#==============================================================================
def _point_sequential_increment_P2_mcpu(num, pubkey1_bytes, mcpu):
res = (b'\x00') * (65 * num)
ice.point_sequential_increment_P2_mcpu(num, pubkey1_bytes, mcpu, res)
return res
def point_sequential_increment_P2_mcpu(num, pubkey1_bytes, mcpu=os.cpu_count()):
''' This is the fastest multi CPU implementation to add point P2 in the given Point sequentially. Threads are Not optimised yet'''
if num <= 0: num = 1
res = _point_sequential_increment_P2_mcpu(num, pubkey1_bytes, mcpu)
return bytes(bytearray(res))
#==============================================================================
def _point_sequential_increment(num, pubkey1_bytes):
res = (b'\x00') * (65 * num)
ice.point_sequential_increment(num, pubkey1_bytes, res)
return res
def point_sequential_increment(num, pubkey1_bytes):
''' This is the fastest implementation using G'''
if num <= 0: num = 1
res = _point_sequential_increment(num, pubkey1_bytes)
return bytes(bytearray(res))
#==============================================================================
def _point_sequential_decrement(num, pubkey1_bytes):
res = (b'\x00') * (65 * num)
ice.point_sequential_decrement(num, pubkey1_bytes, res)
return res
def point_sequential_decrement(num, pubkey1_bytes):
''' This is the fastest implementation using -G.'''
if num <= 0: num = 1
res = _point_sequential_decrement(num, pubkey1_bytes)
return bytes(bytearray(res))
#==============================================================================
def pubkey_to_ETH_address(pubkey_bytes):
''' 65 Upub bytes input. Output is 20 bytes ETH address lowercase with 0x as hex string'''
xy = pubkey_bytes[1:]
res = ice.pubkeyxy_to_ETH_address(xy)
addr = (ctypes.cast(res, ctypes.c_char_p).value).decode('utf8')
ice.free_memory(res)
return '0x'+addr
#==============================================================================
def _pubkey_to_ETH_address_bytes(xy):
res = (b'\x00') * 20
ice.pubkeyxy_to_ETH_address_bytes(xy, res)
return res
def pubkey_to_ETH_address_bytes(pubkey_bytes):
''' 65 Upub bytes input. Output is 20 bytes ETH address lowercase without 0x'''
xy = pubkey_bytes[1:]
res = _pubkey_to_ETH_address_bytes(xy)
return bytes(bytearray(res))
#==============================================================================
def privatekey_to_ETH_address(pvk_int):
''' Privatekey Integer value passed to function. Output is 20 bytes ETH address lowercase with 0x as hex string'''
if pvk_int < 0: pvk_int = N+pvk_int
pass_int_value = fl(pvk_int).encode('utf8')
res = ice.privatekey_to_ETH_address(pass_int_value)
addr = (ctypes.cast(res, ctypes.c_char_p).value).decode('utf8')
ice.free_memory(res)
return '0x'+addr
#==============================================================================
def _privatekey_to_ETH_address_bytes(pass_int_value):
res = (b'\x00') * 20
ice.privatekey_to_ETH_address_bytes(pass_int_value, res)
return res
def privatekey_to_ETH_address_bytes(pvk_int):
''' Privatekey Integer value passed to function. Output is 20 bytes ETH address lowercase without 0x'''
if pvk_int < 0: pvk_int = N+pvk_int
pass_int_value = fl(pvk_int).encode('utf8')
res = _privatekey_to_ETH_address_bytes(pass_int_value)
return bytes(bytearray(res))
#==============================================================================
def privatekey_group_to_ETH_address(pvk_int, m):
''' Starting Privatekey Integer value passed to function as pvk_int.
Integer m is, how many times sequential increment is done from the starting key.
Output is bytes 20*m of ETH address lowercase without 0x as hex string'''
if m<=0: m = 1
if pvk_int < 0: pvk_int = N+pvk_int
start_pvk = fl(pvk_int).encode('utf8')
res = ice.privatekey_group_to_ETH_address(start_pvk, m)
addrlist = (ctypes.cast(res, ctypes.c_char_p).value).decode('utf8')
ice.free_memory(res)
return addrlist
#==============================================================================
def _privatekey_group_to_ETH_address_bytes(start_pvk, m):
res = (b'\x00') * (20 * m)
ice.privatekey_group_to_ETH_address_bytes(start_pvk, m, res)
return res
def privatekey_group_to_ETH_address_bytes(pvk_int, m):
''' Starting Privatekey Integer value passed to function as pvk_int.
Integer m is, how many times sequential increment is done from the starting key.
Output is bytes 20*m of ETH address lowercase without 0x'''
if m<=0: m = 1
if pvk_int < 0: pvk_int = N+pvk_int
start_pvk = fl(pvk_int).encode('utf8')
res = _privatekey_group_to_ETH_address_bytes(start_pvk, m)
return bytes(bytearray(res))
#==============================================================================
def bloom_check_add_mcpu(bigbuff, num_items, sz, mcpu, check_add, bloom_bits, bloom_hashes, bloom_filter):
found_array = (b'\x00') * num_items
# sz = 32; check_add = 0 for check and 1 for add
ice.bloom_check_add_mcpu(bigbuff, num_items, found_array, sz, mcpu, check_add, bloom_bits, bloom_hashes, bloom_filter)
return found_array
#==============================================================================
def to_cpub(pub_hex):
P = pub_hex
if len(pub_hex) > 70:
P = '02' + pub_hex[2:66] if int(pub_hex[66:],16)%2 == 0 else '03' + pub_hex[2:66]
return P
#==============================================================================
def point_to_cpub(pubkey_bytes):
P = pubkey_bytes.hex()
if len(P) > 70:
P = '02' + P[2:66] if int(P[66:],16)%2 == 0 else '03' + P[2:66]
return P
#==============================================================================
def pub2upub(pub_hex):
''' Covert [C or U] pubkey to Point'''
x = pub_hex[2:66]
if len(pub_hex) < 70:
y = get_x_to_y(x, int(pub_hex[:2],16)%2 == 0).hex()
else:
y = pub_hex[66:].zfill(64)
return bytes.fromhex('04'+ x + y)
#==============================================================================
def bloom_para(_items, _fp = 0.000001):
_bits = math.ceil((_items * math.log(_fp)) / math.log(1 / pow(2, math.log(2))))
if _bits % 8: _bits = 8*(1 + (_bits//8))
_hashes = round((_bits / _items) * math.log(2))
return _bits, _hashes
#==============================================================================
def Fill_in_bloom(inp_list, _fp = 0.000001):
_bits, _hashes = bloom_para(len(inp_list), _fp)
_bf = (b'\x00') * (_bits//8)
for line in inp_list:
if type(line) != bytes: tt = str(line).encode("utf-8")
else: tt = line
res = ice.bloom_check_add(tt, len(tt), 1, _bits, _hashes, _bf) # 1 = Add
del res
return _bits, _hashes, _bf, _fp, len(inp_list)
#==============================================================================
def dump_bloom_file(output_bloom_file_name, _bits, _hashes, _bf, _fp, _elem):
with open(output_bloom_file_name, 'wb') as f:
pickle.dump((_bits, _hashes, _bf, _fp, _elem), f)
def read_bloom_file(bloom_file_name):
'''It will return the 5 output as _bits, _hashes, _bf, _fp, _elem'''
with open(bloom_file_name, 'rb') as f:
return pickle.load(f)
#==============================================================================
def check_in_bloom(this_line, _bits, _hashes, _bf):
if type(this_line) != bytes: tt = str(this_line).encode("utf-8")
else: tt = this_line