def rsa_hijack_chinese(data, open_mix, e_value):
data = int(crypto_tools.utf_decoder(data))
crypto_tools.cterm("output", f"Hijacking using chinese reminder method",
"inf")
tx_data = [data]
open_mixes = [open_mix]
for i in range(2, e_value + 1):
tx_data.append(int(crypto_tools.utf_decoder(crypto_tools.get_data())))
open_mixes.append(
int(
crypto_tools.cterm('input', f'Enter {i} open(p * q) number: ',
'ans')))
result = 0
m_value = 1
for i in range(e_value):
temp_m = 1
m_value *= open_mixes[i]
for j in range(1, e_value):
temp_m *= open_mixes[(i + j) % e_value]
inverse_m = crypto_tools.inverse_modulo_numb(temp_m, open_mixes[i])
result += tx_data[i] * temp_m * inverse_m
result = (result % m_value)**(1 / float(e_value))
return f"{result}"
def rsa_hijack_nokey(data, open_mix, e_value):
data = int(crypto_tools.utf_decoder(data))
crypto_tools.cterm("output", f"Hijacking using nokey reading method",
"inf")
second_data = int(crypto_tools.utf_decoder(crypto_tools.get_data()))
second_e_value = int(
crypto_tools.cterm('input', 'Enter second open(e) number: ', 'ans'))
gcd, r, s = crypto_tools.EGCD(e_value, second_e_value)
c1_r = pow(data, r) % open_mix
c2_s = pow(crypto_tools.inverse_modulo_numb(second_data, open_mix),
-s) % open_mix
result = (c1_r * c2_s) % open_mix
return f"{result}"
def dummy_rsa(data):
data = int(crypto_tools.utf_decoder(data))
e_value = int(crypto_tools.cterm('input', 'Enter open(e) value: ', 'ans'))
p_value = int(crypto_tools.cterm('input', 'Enter first(p) number: ',
'ans'))
q_value = int(
crypto_tools.cterm('input', 'Enter second(q) number: ', 'ans'))
return dummy_rsa_processing(data, p_value, q_value, e_value)
def vigenere(data):
lang = crypto_tools.cterm('input', 'Data language: ', 'ans')
key = crypto_tools.cterm('input', 'Enter key(str): ', 'ans')
encrypt = crypto_tools.cterm('input', 'You want encrypt or decrypt: ',
'ans')
if encrypt != "encrypt" and encrypt != "decrypt":
raise ValueError("Incorrect action")
data = crypto_tools.utf_decoder(data)
return vigenere_processing(data, key, lang, encrypt)
def hill_processing(data, key, encrypt, hill_dict):
data = crypto_tools.utf_decoder(data)
mtx_side_size = ceil(sqrt(len(key)))
key_mtx = gen_key_mtx(key, hill_dict, mtx_side_size)
if encrypt == "decrypt":
key_mtx = crypto_tools.inverse_mtx(key_mtx, True, len(hill_dict))
data_mtx = gen_data_mtx(data, hill_dict, mtx_side_size)
res_mtx = crypto_tools.mtx_mult(key_mtx, data_mtx)
result = mtx_to_str(res_mtx, hill_dict)
return result
def freq_analys_processing(data, lang):
data = crypto_tools.utf_decoder(data)
laters = form_frequency_dict(data)
langs = crypto_tools.download_json("crypto_storage/freqchars.json")
if lang == "no":
for lang in langs:
check_char(laters, langs[lang], lang)
else:
check_char(laters, langs[lang], lang)
return laters
def caesar_processing(data, lang, key):
caesar_dict = crypto_tools.get_param_json_data("alphabets.json", lang)
result = ""
data = crypto_tools.utf_decoder(data)
for char in data:
try:
index = caesar_dict.index(char)
except ValueError as err:
err_str = "There is no " + char + " character in alphabet"
raise ValueError(err_str) from err
index = (index + key) % len(caesar_dict)
result = result + caesar_dict[index]
return result
def elgamal(data):
data = crypto_tools.utf_decoder(data)
p_value = int(crypto_tools.cterm('input', 'Enter first(p) number: ',
'ans'))
g_value = int(
crypto_tools.cterm('input', 'Enter generator(g) number: ', 'ans'))
x_value = int(
crypto_tools.cterm('input', 'Enter closed(x) number: ', 'ans'))
encrypt = crypto_tools.cterm('input', 'You want encrypt or decrypt: ',
'ans')
if encrypt not in ("encrypt", "decrypt"):
raise ValueError(f"Incorrect action {encrypt}")
return elgamal_processing(data, p_value, x_value, encrypt, g_value)
def dsa(data):
data = crypto_tools.utf_decoder(data)
p_value = int(crypto_tools.cterm('input', 'Enter first(p) number: ',
'ans'))
q_value = int(
crypto_tools.cterm('input', 'Enter second(q) number: ', 'ans'))
x_value = int(
crypto_tools.cterm('input', 'Enter secret key(x) number: ', 'ans'))
k_value = int(
crypto_tools.cterm('input', 'Enter secret key(k) number: ', 'ans'))
encrypt = crypto_tools.cterm('input', 'You want sign or verify: ', 'ans')
if encrypt not in ("sign", "verify"):
raise ValueError(f"Incorrect action {encrypt}")
return dsa_processing(data, p_value, q_value, x_value, k_value, encrypt)
def random_processing(data, action):
try:
data = crypto_tools.utf_decoder(data)
data = loads(data)
if action == "calc":
for i in range(len(data)):
nrp_seq, bit_seq = calc(data[i]['m'], data[i]['c'],
data[i]['a'], data[i]['f'], 20000)
data[i]["sequence"] = nrp_seq
data[i]["bin_sequence"] = ""
for num in bit_seq:
data[i]["bin_sequence"] += "{0:b}".format(num)
elif action == "generate":
data = generate(data)
else:
raise ValueError("Incorrect action")
except (KeyError, TypeError, JSONDecodeError):
raise ValueError("Incorrect input")
return dumps(data, sort_keys=True, indent=4)
def elliptic(data):
data = crypto_tools.utf_decoder(data)
elliptic_curve = crypto_tools.cterm('input',
'Enter curve coefficients(a:b:p): ',
'ans')
elliptic_curve = crypto_tools.decode_params(elliptic_curve, 3)
g_value = crypto_tools.cterm('input', 'Enter generator point(x:y): ',
'ans')
g_value = crypto_tools.decode_params(g_value, 2)
secret_key = int(crypto_tools.cterm('input', 'Enter secret key: ', 'ans'))
r_number = int(crypto_tools.cterm('input', 'Enter r number: ', 'ans'))
encrypt = crypto_tools.cterm('input', 'You want encrypt or decrypt: ',
'ans')
if encrypt not in ("encrypt", "decrypt"):
raise ValueError(f"Incorrect action {encrypt}")
return elliptic_processing(data, elliptic_curve, g_value, secret_key,
r_number, encrypt)
