Topic: the fastest possible way to mass-generate addresses in Python (Read 1208 times)

    with open("addresses_1M_multicore_secrets" + str(i) + ".txt", "a") as f:
      f.write(f'{thred_addresses}n')

private_keys = list(map(secrets.randbelow,n))

#!/usr/bin/env python3
# 2023/Jan/01, citb0in_multicore_secrets.py
import concurrent.futures
import os
import secrets
import secp256k1 as ice

# how many cores to use
num_cores = 10
#num_cores = os.cpu_count()

# Set the number of addresses to generate
num_addresses = 10000000


# Define a worker function that generates a batch of addresses and returns them
def worker(start, end, i):
 
  addr_type = [2] * (end - start)
  is_compressed = [True] * (end - start)
  n = [0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEBAAEDCE6AF48A03BBFD25E8CD0364141] * (end - start) 
 
  f = open("addresses_1M_multicore_secrets" + str(i) + ".txt", "w")
  
  # Generate a list of random private keys using "secrets" library
  private_keys = list(map(secrets.randbelow,n))

  
  # Use secp256k1 to convert the private keys to addresses
  thread_addresses = list(map(ice.privatekey_to_address, addr_type, is_compressed, private_keys))
  
  # Write the addresses in the thread file
  list(map(lambda x:f.write(x+"\n"),thread_addresses))

  f.close()
  
  return
  

# Use a ProcessPoolExecutor to generate the addresses in parallel
with concurrent.futures.ProcessPoolExecutor() as executor:
  # Divide the addresses evenly among the available CPU cores
  addresses_per_core = num_addresses // num_cores
   
  
  # Submit a task for each batch of addresses to the executor
  tasks = []
  for i in range(num_cores):
    start = i * addresses_per_core
    end = (i+1) * addresses_per_core
    tasks.append(executor.submit(worker, start, end, i))

$ time python3 citb0in_multicore_secrets.py 

$ time python3 citb0in_multicore_secrets_splitsave.py 

# Starting point (decimal/integer) for private key
starting_point = 123456789

# Define a worker function that generates a batch of addresses and returns them
def worker(start, end, starting_point):
  # Initialize the private key to the starting point
  private_key = starting_point

  # Initialize the list to hold to private keys
  private_keys = []

  # Generate a batch of private keys sequentially
  for i in range(start, end):
    # Increment the private key
    private_key += 1 #TODO why not use a large prime number instead of 1? 1 is not random at all, but a few dozen bits varying at once can be made to look random to others.

#!/usr/bin/env python3
# 2023/Jan/01, citb0in_multicore_secrets.py
import concurrent.futures
import os
import numpy as np
import secrets
import secp256k1 as ice

# how many cores to use
#num_cores = 1
num_cores = os.cpu_count()

# Set the number of addresses to generate
num_addresses = 1000000

# Define a worker function that generates a batch of addresses and returns them
def worker(start, end, i):
  # Generate a NumPy array of random private keys using "secrets" library
  private_keys = np.array([secrets.randbelow(2**256) for _ in range(start, end)])

  # Use secp256k1 to convert the private keys to addresses
  thread_addresses = np.array([ice.privatekey_to_address(2, True, dec) for dec in private_keys])
  np.savetxt('addresses_1M_multicore_secrets'+ str(i) +'.txt', thread_addresses, fmt='%s')
  
  return 

# Use a ProcessPoolExecutor to generate the addresses in parallel
with concurrent.futures.ProcessPoolExecutor() as executor:
  # Divide the addresses evenly among the available CPU cores
  addresses_per_core = num_addresses // num_cores
  
  # Submit a task for each batch of addresses to the executor
  tasks = []
  for i in range(num_cores):
    start = i * addresses_per_core
    end = (i+1) * addresses_per_core
    tasks.append(executor.submit(worker, start, end, i))