ecdsa - 創建私鑰和比特幣地址

我有以下程式碼：

import binascii
import hashlib
from fastecdsa import keys, curve

# generate a private key for curve P256
priv_key = keys.gen_private_key(curve.secp256k1)
print (priv_key)
print ("______")

# get the public key corresponding to the private key we just generated
pub_key = keys.get_public_key(priv_key, curve.secp256k1)
print (pub_key)

這會返回：

68553277193328358088381091283586955911631072878513122367770244549235879948867
______
(defdba7ac050b698bc63134bbc495064b5a99125b023d8ae92d21ca43be77961,
68ed2abc9d36bae64947b94dd15864e3b2f7601b7009c5b9bae8a8775553fea0)

第一個是私鑰，第二個是公鑰。如何將這些數字轉換為比特幣格式？

我試過這個腳本：https ://github.com/bitcoinbook/bitcoinbook/blob/second_edition/code/ec-math.py

但在 Python 3.5 中不起作用

我解決了這個問題。這是程式碼：

import os
import hashlib
from hashlib import sha256


def ripemd160(x):
   d = hashlib.new("ripemd160")
   d.update(x)
   return d


P = 2 ** 256 - 2 ** 32 - 2 ** 9 - 2 ** 8 - 2 ** 7 - 2 ** 6 - 2 ** 4 - 1
G = (0x79BE667EF9DCBBAC55A06295CE870B07029BFCDB2DCE28D959F2815B16F81798,
    0x483ADA7726A3C4655DA4FBFC0E1108A8FD17B448A68554199C47D08FFB10D4B8)
B58 = "123456789ABCDEFGHJKLMNPQRSTUVWXYZabcdefghijkmnopqrstuvwxyz"


def point_add(p, q):
   xp, yp = p
   xq, yq = q

   if p == q:
       l = pow(2 * yp % P, P - 2, P) * (3 * xp * xp) % P
   else:
       l = pow(xq - xp, P - 2, P) * (yq - yp) % P

   xr = (l ** 2 - xp - xq) % P
   yr = (l * xp - l * xr - yp) % P

   return xr, yr


def point_mul(p, d):
   n = p
   q = None

   for i in range(256):
       if d & (1 << i):
           if q is None:
               q = n
           else:
               q = point_add(q, n)

       n = point_add(n, n)

   return q


def point_bytes(p):
   x, y = p

   return b"\x04" + x.to_bytes(32, "big") + y.to_bytes(32, "big")


def b58_encode(d):
   out = ""
   p = 0
   x = 0

   while d[0] == 0:
       out += "1"
       d = d[1:]

   for i, v in enumerate(d[::-1]):
       x += v * (256 ** i)

   while x > 58 ** (p + 1):
       p += 1

   while p >= 0:
       a, x = divmod(x, 58 ** p)
       out += B58[a]
       p -= 1

   return out


def make_address(privkey):
   q = point_mul(G, int.from_bytes(privkey, "big"))
   hash160 = ripemd160(sha256(point_bytes(q)).digest()).digest()
   addr = b"\x00" + hash160
   checksum = sha256(sha256(addr).digest()).digest()[:4]
   addr += checksum

   wif = b"\x80" + privkey
   checksum = sha256(sha256(wif).digest()).digest()[:4]
   wif += checksum

   addr = b58_encode(addr)
   wif = b58_encode(wif)

   return addr, wif


print("=========================")


from ecdsa import SigningKey, SECP256k1

sk = SigningKey.generate(curve=SECP256k1)
vk = sk.get_verifying_key()
addr, wif = make_address(sk.to_string())
print("Address: " + addr)
print("Privkey: " + wif)

引用自：https://bitcoin.stackexchange.com/questions/65652