bitcoin public key suffix builder/search

btc_suffix_search.py

# June 2023
# Core I5-8250 thinkpad: 350 keys/second
import os
import sys
import importlib.util
from datetime import datetime

if importlib.util.find_spec('bitcoin') is None:
    print("bitcoin module not found. please install https://pypi.org/project/bitcoin/")
    sys.exit()

import bitcoin

if len(sys.argv) != 2:
    print("Please give a target suffix.")
    exit()

addr = ""
count = 0
start = timestamp = datetime.now()
target = sys.argv[1]
target_len = len(target)

print ("finding pubkey ending in", target)
while addr[-target_len:].lower() != target.lower():
    bytes = os.urandom(32)
    addr = bitcoin.privtoaddr(bytes)
    count += 1
    if count % 1000 == 0:
        now = datetime.now()
        duration = now - timestamp
        print(1000/duration.total_seconds(), " keys per second. last tested address", addr)
        timestamp = now

print("found in", datetime.now() - start)
print("PUBKEY:", addr)
print("privkey bytes:", bytes.hex())