shitscript

import hashlib
from Crypto.Cipher import AES
from Crypto.Util.Padding import pad, unpad
import argparse
import os

# Parameters
DIFFICULTY = 5  # Number of leading zeros in hash
BLOCK_SIZE = 16  # AES block size


# Encrypt the hidden link
def encrypt_link(link, key):
    cipher = AES.new(key, AES.MODE_ECB)
    encrypted_link = cipher.encrypt(pad(link.encode(), BLOCK_SIZE))
    return encrypted_link


# Decrypt the hidden link
def decrypt_link(encrypted_link, key):
    cipher = AES.new(key, AES.MODE_ECB)
    decrypted_link = unpad(cipher.decrypt(encrypted_link), BLOCK_SIZE).decode()
    return decrypted_link


# Generate a challenge
def generate_challenge(link, difficulty):
    challenge = os.urandom(16).hex()  # Random 16-byte challenge
    print(f"Challenge: {challenge}")
    key = hashlib.sha256(challenge.encode()).digest()[:BLOCK_SIZE]  # Derive key
    encrypted_link = encrypt_link(link, key)
    return challenge, encrypted_link


# Solve the challenge
def find_nonce(challenge, difficulty):
    target = "0" * difficulty
    nonce = 0
    while True:
        guess = f"{challenge}{nonce}".encode()
        hash_result = hashlib.sha256(guess).hexdigest()
        if hash_result.startswith(target):
            return nonce, hash_result
        nonce += 1


# Verify the solution and reveal the link
def verify_solution(challenge, nonce, encrypted_link, difficulty):
    guess = f"{challenge}{nonce}".encode()
    hash_result = hashlib.sha256(guess).hexdigest()
    if not hash_result.startswith("0" * difficulty):
        print("Invalid solution. The hash does not meet the difficulty requirement.")
        return None
    key = hashlib.sha256(challenge.encode()).digest()[:BLOCK_SIZE]
    return decrypt_link(encrypted_link, key)


# Main program
def main():
    parser = argparse.ArgumentParser(description="GPU Hard Challenge with Hidden Link")
    parser.add_argument("--generate", action="store_true", help="Generate a new challenge")
    parser.add_argument("--solve", action="store_true", help="Solve a given challenge")
    parser.add_argument("--verify", action="store_true", help="Verify a solution and reveal the link")
    parser.add_argument("--link", type=str, help="Hidden link to encrypt")
    parser.add_argument("--challenge", type=str, help="Challenge string")
    parser.add_argument("--nonce", type=int, help="Nonce to verify solution")
    parser.add_argument("--encrypted", type=str, help="Encrypted link (hex-encoded)")
    args = parser.parse_args()

    if args.generate:
        if not args.link:
            print("Please provide a link using --link.")
            return
        challenge, encrypted_link = generate_challenge(args.link, DIFFICULTY)
        print(f"Challenge: {challenge}")
        print(f"Encrypted Link (hex): {encrypted_link.hex()}")
        print("Share the challenge and encrypted link with the solver.")

    elif args.solve:
        if not args.challenge:
            print("Please provide a challenge using --challenge.")
            return
        nonce, hash_result = find_nonce(args.challenge, DIFFICULTY)
        print(f"Found Nonce: {nonce}")
        print(f"Hash Result: {hash_result}")

    elif args.verify:
        if not args.challenge or not args.nonce or not args.encrypted:
            print("Please provide --challenge, --nonce, and --encrypted.")
            return
        encrypted_link = bytes.fromhex(args.encrypted)
        link = verify_solution(args.challenge, args.nonce, encrypted_link, DIFFICULTY)
        if link:
            print(f"Hidden Link: {link}")

    else:
        print("Please specify an action: --generate, --solve, or --verify.")


if __name__ == "__main__":
    main()