decrypt_rsa.py

import numpy as np

from helpers import (
    break_rsa_with_primes,
    display_gui,
    rsa_decrypt,
    rsa_decrypt_text,
    rsa_encrypt,
    rsa_encrypt_text,
    show_text_gui,
)


def run_decrypt_rsa():
    # public key (n, e)
    n = 1067333190347  # 1292063 * 826069
    e = 17

    # If message is an integer
    # message = 123
    # c = rsa_encrypt(message, n, e)
    # encrypted message
    # c = 641618116209
    # plaintext = rsa_decrypt(c, d, n)
    # print("Decrypted message:", plaintext)

    # Get the message to encrypt and encrypt it
    message = "Hello"
    message = display_gui(message)
    c = rsa_encrypt_text(message, n, e)
    show_text_gui(str(c), title="Encrypted message", label="Encrypted message:")

    # Load the list of primes and break RSA to find d
    primes = np.load("primes.npz").tolist()
    d = break_rsa_with_primes(n, e, primes)

    # Decrypting the message
    decrypted_message = rsa_decrypt_text(c, d, n)
    show_text_gui(
        str(decrypted_message), title="Decrypted message", label="Decrypted message:"
    )


if __name__ == "__main__":
    run_decrypt_rsa()