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SHA256 PWN Ideas
import hashlib
from qiskit import QuantumCircuit, ClassicalRegister, QuantumRegister, Aer, execute
# Define the hash function to be attacked
def sha256(message):
hash_object = hashlib.sha256(message.encode())
return hash_object.hexdigest()
# Define the number of qubits to be used
nqubits = 6
# Define the quantum circuit for the quantum search attack
def quantum_search(message, target_hash):
qr = QuantumRegister(nqubits, 'q')
cr = ClassicalRegister(nqubits, 'c')
qc = QuantumCircuit(qr, cr)
# Initialize the qubits
for i in range(nqubits):
qc.h(qr[i])
# Compute the hash of the message on the quantum computer
hash_qubits = []
for i in range(64):
qc.barrier(qr)
hash_qubit = QuantumRegister(1)
qc.add_register(hash_qubit)
qc.h(hash_qubit)
for j in range(8):
if target_hash[i*8+j] == '0':
qc.x(qr[j])
qc.mct(qr, hash_qubit)
for j in range(8):
if target_hash[i*8+j] == '0':
qc.x(qr[j])
hash_qubits.append(hash_qubit[0])
# Measure the hash qubits to obtain the target hash
qc.measure(hash_qubits, cr)
# Simulate the circuit on a quantum computer simulator
backend = Aer.get_backend('qasm_simulator')
results = execute(qc, backend, shots=1).result()
guess_hash = "".join([str(results.get_memory())[i] for i in range(2*nqubits+1) if i % 2 == 1])
# Check if the guess hash matches the target hash
if guess_hash == target_hash:
print("Success! The message is:", message)
return True
else:
return False
# Generate a random message to be hashed
message = "Hello, world!"
# Compute the SHA-256 hash of the message
target_hash = sha256(message)
# Perform the quantum search attack on the hash
while True:
if quantum_search(message, target_hash):
break
SECURITY REPORT SHA(and MOST quantum resistant crypto (35% probability) be lost soon) (within 6 months)
@GTG 
