如何迭代比特币私钥(来捡币)

问题：如何迭代比特币私钥, 然后查询对应的地址有多少余额，最后将币转出

1: 迭代私钥：

私钥是一个有限集, 可以从一个1～2^256（其实是1.158 * 10^77）间选一个数，来生成一个私钥

这里借助pycoin这个库来生成, 因为私钥有不止一种编码方式，所以1个数字可以得到多对公私钥(查看《mastering bitcoin》第70页的Table 4-2)

from pycoin.key.Key import Key

def get_bitcoin_key_pair(i):
    k = Key(num)
    addr, priv = k.address(), k.wif()
    addr2, priv2 = k.address(use_uncompressed=True), k.wif(use_uncompressed=True)
    return [{
        'privkey': priv,
        'address': addr
    }, {
        'privkey': priv2,
        'address': addr2
    }]

2: 查询余额:

这里可以用bitcoin+electrumx来实现(都用supervisor来拉起), 因为单单bitcoin节点并没有提供查任意地址余额的接口，electrumx有

安装supervisor

pip3 install supervisor

echo_supervisord_conf > ~/conf/supervisord.conf

root@debian:~# cat >> ~/conf/supervisord.conf << EOF
> [include]
> files = *.ini
> EOF

supervisord -c ~/conf/supervisord.conf

安装bitcoin
为了不浪费生命，直接下载bitcoin的可执行二进制包

#  ~/conf/bitcoind.ini
[program:bitcoind]
command=/root/bitcoin-0.16.0/bin/bitcoind -rpcuser=YOUR_RPC_USER -rpcpassword=YOUR_RPC_PASSWD
process_name=bitcoind
numprocs=1
autostart=yes
autorestart=true
redirect_stderr=true
stdout_logfile=/root/.bitcoin/error.log

并用supervisor将bitcoin拉起

supervisorctl reread
supervisorctl update bitcoind

然后是electrumx: 下载地址

# ~/conf/electrumx.ini
[program:electrumx]
command=/root/electrumx/electrumx_server.py
directory=/root/electrumx
environment=DB_DIRECTORY="/root/.electrumx",DAEMON_URL="http://YOUR_RPC_USER:YOUR_RPC_PASSWD@127.0.0.1:8332/",COIN="BitcoinSegwit",ALLOW_ROOT="1",HOST="0.0.0.0",TCP_PORT="50001"
process_name=electrumx
numprocs=1
autostart=yes
autorestart=true
redirect_stderr=true
stdout_logfile=/root/.electrumx/log.log

并用supervisor将electrumx拉起

supervisorctl reread
supervisorctl update electrumx

electrumx同步好所有区块之后，才会提供出rpc接口

然后掉electrumx的查bitcoin地址余额的接口

import asyncio

class Bitcoin:
    def __init__(self, loop):
        self.loop = loop
        self.leveldb_host = '127.0.0.1'
        self.electrumx_port = 50001

    async def get_bitcoin_balance(self, addr):
        reader, writer = await asyncio.open_connection(self.electrumx_host, self.electrumx_port, loop=self.loop)
        params = {
            'jsonrpc': '2.0',
            'method': 'blockchain.address.get_balance',
            'params': [addr],
            'id': addr
        }
        writer.write(json.dumps(params).encode()+b'\n')
        logger.info('data send')
        data = await reader.read(1024)
        writer.close()
        logger.error('bitcoin_balace: {}'.format(json.loads(data)))
        data = json.loads(data)
        res = {
            'confirmed': data['result']['confirmed'],
            'unconfirmed': data['result']['unconfirmed']
        }
        return res

    async def test(self):
        await self.get_bitcoin_balance('17eLjNhftbJd826mc1Pdz62Ni2G7MZYi3Q')

if __name__ == '__main__':
    loop = asyncio.get_event_loop()
    bitcoin = Bitcoin(loop)
    loop.run_until_complete(bitcoin.test())
    loop.close()

3: 将币转到自己的账号

代码实现待实现 (可先将第二步的私钥记录到文件，导入到钱包转账)

总的代码： https://github.com/ligulfzhou/how-to-scrapy-bitcoin/blob/master/scrap_bitcoins.py