Quantum attack vs Grover ( decryption AES 256 CODE !!!)( best machines and codes)

 

from qiskit import QuantumCircuit, Aer, execute

import numpy as np

n = 8  # toy key size (safe)

oracle_key = "10100110"

def aes_toy_oracle():

    qc = QuantumCircuit(n+1)

    for i, bit in enumerate(oracle_key):

        if bit == "1":

            qc.x(i)

    qc.mcx(list(range(n)), n)

    for i, bit in enumerate(oracle_key):

        if bit == "1":

            qc.x(i)

    return qc

oracle = aes_toy_oracle()

grover = QuantumCircuit(n+1)

grover.compose(oracle, inplace=True)

grover.h(range(n))

grover.x(range(n))

grover.h(n-1)

grover.mcx(list(range(n-1)), n-1)

grover.h(n-1)

grover.x(range(n))

grover.h(range(n))

backend = Aer.get_backend("statevector_simulator")

result = execute(grover, backend).result()

state = result.get_statevector()

print("Grover statevector:", state)