import random
import os
import time
import secp256k1 as ice

puzzle = 30
target = "d39c4704664e1deb76c9331e637564c257d68a08"
lower_range_limit = 2 ** (puzzle - 1)
upper_range_limit = (2 ** puzzle) - 1

start_time = time.time()

for x in range(10000000):
    #Random seed Config
    #constant_prefix = b''  #back to no constant
    constant_prefix = b'yx\xcb\x08\xb70l'
    prefix_length = len(constant_prefix)
    length = 8
    ending_length = length - prefix_length
    ending_bytes = os.urandom(ending_length)
    random_bytes = constant_prefix + ending_bytes
    random.seed(random_bytes)
    dec = random.randint(lower_range_limit, upper_range_limit)
    h160 = ice.privatekey_to_h160(0, True, dec).hex()
    if h160 == target:
        HEX = "%064x" % dec
        caddr = ice.privatekey_to_address(0, True, dec)
        wifc = ice.btc_pvk_to_wif(HEX)
        print(f"Puzzle: {puzzle}")
        print("Bitcoin address Compressed: " + caddr)
        print("Private Key (decimal): " + str(dec))
        print("Private key (wif) Compressed : " + wifc)
        print(f"Random seed: {random_bytes}")
        break

end_time = time.time()
execution_time_ms = (end_time - start_time) * 1000

print("Execution Time (ms):", execution_time_ms)