Topic: Python. Crear dirección Bitcoin con clave privada en formato HEX o INT (Read 1062 times)

import hashlib, ecdsa

b58 = '123456789ABCDEFGHJKLMNPQRSTUVWXYZabcdefghijkmnopqrstuvwxyz'
 
def base58encode(n):
    result = ''
    while n > 0:
        result = b58[n%58] + result
        n /= 58
    return result

def base256decode(s):
    result = 0
    for c in s:
        result = result * 256 + ord(c)
    return result

def countLeadingChars(s, ch):
    count = 0
    for c in s:
        if c == ch:
            count += 1
        else:
            break
    return count

def base58CheckEncode(version, payload):
    s = chr(version) + payload
    checksum = hashlib.sha256(hashlib.sha256(s).digest()).digest()[0:4]
    result = s + checksum
    leadingZeros = countLeadingChars(result, '\0')
    return '1' * leadingZeros + base58encode(base256decode(result))

def privateKeyToWif(key_hex):    
    return base58CheckEncode(0x80, key_hex.decode('hex'))
    
def privateKeyToPublicKey(s):
    sk = ecdsa.SigningKey.from_string(s.decode('hex'), curve=ecdsa.SECP256k1)
    vk = sk.verifying_key
    return ('\04' + sk.verifying_key.to_string()).encode('hex')
    
def pubKeyToAddr(s):
    ripemd160 = hashlib.new('ripemd160')
    ripemd160.update(hashlib.sha256(s.decode('hex')).digest())
    return base58CheckEncode(0, ripemd160.digest())

def keyToAddr(s):
    return pubKeyToAddr(privateKeyToPublicKey(s))

# Warning: this random function is not cryptographically strong and is just for example
# private_key = ''.join(['%x' % random.randrange(16) for x in range(0, 64)])
private_key = 'a03465bcde123456a03465bcde123456a03465bcde123456a03465bcde123457'
print (privateKeyToWif(private_key))
print (keyToAddr(private_key))

def privateKeyToWif(key_hex):    
    return utils.base58CheckEncode(0x80, key_hex.decode('hex'))
    
def privateKeyToPublicKey(s):
    sk = ecdsa.SigningKey.from_string(s.decode('hex'), curve=ecdsa.SECP256k1)
    vk = sk.verifying_key
    return ('\04' + sk.verifying_key.to_string()).encode('hex')
    
def pubKeyToAddr(s):
    ripemd160 = hashlib.new('ripemd160')
    ripemd160.update(hashlib.sha256(s.decode('hex')).digest())
    return utils.base58CheckEncode(0, ripemd160.digest())

def keyToAddr(s):
    return pubKeyToAddr(privateKeyToPublicKey(s))

# Warning: this random function is not cryptographically strong and is just for example
private_key = ''.join(['%x' % random.randrange(16) for x in range(0, 64)])
print keyUtils.privateKeyToWif(private_key)
print keyUtils.keyToAddr(private_key)

def generar_HEX(nDecimal):
aHex = hex(nDecimal)
aHex = aHex[2:].upper()
aHex = ((64-len(aHex)) * '0') + aHex
return aHex

priv = generar_HEX(1400)  # Pongo 1400 por poner algo

import ctypes
import hashlib

import time
import sys

ssl_library = ctypes.cdll.LoadLibrary('libssl.so')

def base58_encode(num):
alphabet = '123456789ABCDEFGHJKLMNPQRSTUVWXYZabcdefghijkmnopqrstuvwxyz'
base_count = len(alphabet)
encode = ''
if (num < 0):
return ''
    
while (num >= base_count):    
mod = num % base_count
encode = alphabet[mod] + encode
num = num // base_count
 
if (num):
encode = alphabet[num] + encode
 
return encode
 
def gen_ecdsa_pair():
    NID_secp160k1 = 708
    NID_secp256k1 = 714
    k = ssl_library.EC_KEY_new_by_curve_name(NID_secp256k1)
 
    if ssl_library.EC_KEY_generate_key(k) != 1:
        raise Exception("internal error?")
 
    bignum_private_key = ssl_library.EC_KEY_get0_private_key(k)
    size = (ssl_library.BN_num_bits(bignum_private_key)+7)//8
    storage = ctypes.create_string_buffer(size)
    ssl_library.BN_bn2bin(bignum_private_key, storage)
    private_key = storage.raw
 
    size = ssl_library.i2o_ECPublicKey(k, 0)
    storage = ctypes.create_string_buffer(size)
    ssl_library.i2o_ECPublicKey(k, ctypes.byref(ctypes.pointer(storage)))
    public_key = storage.raw
 
    ssl_library.EC_KEY_free(k)
    return public_key, private_key
 
def ecdsa_get_coordinates(public_key):
    x = bytes(public_key[1:33])
    y = bytes(public_key[33:65])
    return x, y
 
def generate_address(public_key):
    assert isinstance(public_key, bytes)
 
    x, y = ecdsa_get_coordinates(public_key)
  
    s = b'\x04' + x + y
 
    hasher = hashlib.sha256()
    hasher.update(s)
    r = hasher.digest()
 
    hasher = hashlib.new('ripemd160')
    hasher.update(r)
    r = hasher.digest()

    return '1' + base58_check(r, version=0)
 
def base58_check(src, version=0):
    src = bytes([version]) + src
    hasher = hashlib.sha256()
    hasher.update(src)
    r = hasher.digest()
 
    hasher = hashlib.sha256()
    hasher.update(r)
    r = hasher.digest()
 
    checksum = r[:4]
    s = src + checksum
 
    return base58_encode(int.from_bytes(s, 'big'))
 
def crear_addr_fast():
public_key, private_key = gen_ecdsa_pair()
hex_private_key = ''.join(["{:02x}".format(i) for i in private_key])

if len(hex_private_key) == 64:
wif = base58_check(private_key, version=128)
addr = generate_address(public_key)
return addr, wif
else:
return '', ''

addr, wif = crear_addr_fast()
print ('ADDR: ' + addr)
print ('WIF: ' + wif)