class LocalOracle(Oracle):
def __init__(self, plaintext, mode):
Oracle.__init__(self, mode)
from rsa import RSA
from secret import p, q, e
self._rsa = RSA(p, q, e)
self._ciphertext = self._rsa.encrypt(bytes_to_long(plaintext))
self._rsa.set_firewall()
def call(self, number):
Oracle.call(self, number)
if self._mode == Oracle.MODE_DECRYPT:
return self._rsa.decrypt(number)
if self._mode == Oracle.MODE_ENCRYPT:
return self._rsa.encrypt(number)
def demonstration():
wire = RSA()
print("\nThis program will now walk you through the encryption process...")
input = raw_input("Please enter a string to encrypt: ")
print("\nYou entered '%s'." % (input))
print("Your public key is: %d" % (wire.publicKey))
print("Your private key is: %d" % (wire.privateKey))
print("Your modulus value is: %d" % (wire.modValue))
raw_input("Press any key to see how encryption works...")
print(
"\nTo encrypt a string, allow X to equal the ASCII value of a given character. Then use the following formula:"
)
print("EncryptedASCII = (X ^ PublicKey) % ModulusValue")
print("This results in each character being encrypted as follows:")
encryptedCharacters = wire.encrypt(input)
for i in range(0, len(encryptedCharacters)):
print("\t%s: %d" % (input[i], encryptedCharacters[i]))
raw_input("Press any key to see how decryption works...")
print(
"\nTo decrypt a string, allow X to equal the encrypted value of a given character. Then use the following formula:"
)
print("DecryptedASCII = (X ^ PrivateKey) % ModulusValue")
print(
"\nWhen decrypted, the output should be the same as your initial input!"
)
print("'%s' is your original string!" %
(wire.decrypt(encryptedCharacters)))
def encrypt_file(self, filename, recipients):
message = None
# Check if file exists
if os.path.exists(filename):
with open(filename, 'r') as fp:
message = fp.read()
else:
print("Error: Cannot find file " + filename)
return
# Send it to each recipient
for recipient in recipients:
if recipient in self.keys:
fp = self.keys[recipient]
n, e = None, None
with open(fp, 'r') as pub_key:
lines = pub_key.readlines()
n = int(lines[3])
e = int(lines[4])
encrypted_message = RSA.encrypt(message, n, e)
with open(filename + '.pgp', 'w') as fp:
fp.write('-----BEGIN PGP MESSAGE-----\n')
fp.write(
'Version: Bradley PGPlike - message encoded with ' +
recipient + ' public key\n')
fp.write('\n')
fp.write(encrypted_message + '\n')
fp.write('-----END PGP MESSAGE-----')
print("Message encoded to " + recipient)
else:
print("Error: Recipient " + recipient + " not found in keys!")
class Client(object):
def __init__(self, rsa_encode_method: str = "oaep"):
self.id = random.randint(0, 1 << 64)
self.rsa = RSA(
encode_method=rsa_encode_method) # RSA key pair of this user
self.rsa.generate_key_pairs()
# some sensitive private message
self.mac = str(random.randint(1000000, 9999999)) # MAC address of user
self.imei = str(random.randint(1000000, 9999999)) # IMEI series
def send_request(self, content) -> List[Tuple]:
"""
return a made up WUP request
"""
# generate a 128-bit AES session key
aes_key = random.getrandbits(128)
aes = AES.new(aes_key.to_bytes(16, 'big'))
# encrypt this session key using a 1024-bit RSA public key
encrypted_aes_key = self.rsa.encrypt(aes_key)
# use the AES session key to ecrypt the WUP request
wups = WUP(content, self.mac, self.imei)
encrypted_wups = [aes.encrypt(wup) for wup in wups]
# send the RSA-encrypted AES session key and the
# encrypted WUP request to the server.
return [(self.id, encrypted_aes_key, wup) for wup in encrypted_wups]
def main():
import secret
check_secret(secret)
rsa = RSA(secret.p, secret.q, secret.e)
message = rsa.encrypt(bytes_to_long(read_flag()))
rsa.set_firewall()
ui = UI(rsa, message)
ui.interact()
def encrypt():
data = request.form.get('data')
e = request.form.get('e')
n = request.form.get('n')
if not data or not e or not n:
return 'Bad Request', 400
if len(e) > 5 or len(n) > 5:
return 'Bad Request', 400
try:
encrypted_data = RSA.encrypt(data=data, e=int(e), n=int(n))
except Exception as e:
return 'Bad Request', 400
return {'encrypted_data': encrypted_data}
class RSA_Verifier():
def __init__(self, keylen):
self.rsa = RSA(keylen)
def verify(self, signature, message):
signature = b'\x00' + self.rsa.encrypt(signature)
r = re.compile(b'\x00\x01\xff+?\x00.{15}(.{20})', re.DOTALL)
m = r.match(signature)
if not m:
print('Signature format wrong')
return
hash = m.group(1)
if hash == bytes.fromhex(sha1(message)):
print('Signatures matched')
else:
print('Signatures did not match')
def showDialog(self):
self.anchor = int(self.le1.text())
self.accuracy = int(self.leac.text())
if (self.anchor < self.accuracy):
QMessageBox.about(self, "ERROR", "need threshold > accuracy")
else:
self.text = self.le2.text()
rsa1 = RSA(self.anchor, self.accuracy, self.text)
rsa1.create_key()
self.ciphertext = rsa1.encrypt([rsa1.e, rsa1.n], rsa1.text)
self.plaintext = rsa1.decrypt([rsa1.d, rsa1.n], self.ciphertext)
self.ciphertext = [chr(a) for a in self.ciphertext]
a = ''.join(self.ciphertext)
self.le3.setText(str(self.text))
self.le4.setText(str(a))
self.le5.setText(str(self.plaintext))
self.lep.setText(str(rsa1.p))
self.leq.setText(str(rsa1.q))
self.len.setText(str(rsa1.n))
self.lee.setText(str(rsa1.e))
self.led.setText(str(rsa1.d))
def demonstration():
wire = RSA()
print("\nThis program will now walk you through the encryption process...")
input = raw_input("Please enter a string to encrypt: ")
print("\nYou entered '%s'." % (input))
print("Your public key is: %d" % (wire.publicKey))
print("Your private key is: %d" % (wire.privateKey))
print("Your modulus value is: %d" % (wire.modValue))
raw_input("Press any key to see how encryption works...")
print("\nTo encrypt a string, allow X to equal the ASCII value of a given character. Then use the following formula:")
print("EncryptedASCII = (X ^ PublicKey) % ModulusValue")
print("This results in each character being encrypted as follows:")
encryptedCharacters = wire.encrypt(input)
for i in range(0, len(encryptedCharacters)):
print("\t%s: %d" % (input[i], encryptedCharacters[i]))
raw_input("Press any key to see how decryption works...")
print("\nTo decrypt a string, allow X to equal the encrypted value of a given character. Then use the following formula:")
print("DecryptedASCII = (X ^ PrivateKey) % ModulusValue")
print("\nWhen decrypted, the output should be the same as your initial input!")
print("'%s' is your original string!" % (wire.decrypt(encryptedCharacters)))
def test_encrypt(self, p, q, e, m, encrypted):
rsa = RSA(p, q, e)
self.assertEqual(encrypted, rsa.encrypt(m))
rsa = RSA(p, q, e)
elif use_own_values == "2":
rsa = RSA.get_random_rsa()
elif use_own_values == "3":
run = False
break
show_values = ask_input("show_values")
if show_values == "1":
rsa.show_values()
continue_with_instance = "1"
while continue_with_instance == "1":
print()
action = ask_input("action")
print()
if action == "1":
word = input('Choose a word: ')
print('Word encrypted: {}'.format(rsa.encrypt(word)))
elif action == "2":
values = input('Input the word encrypted values: ')
values = list(map(int, values.split(', ')))
print('Word decrypted: {}'.format(rsa.decrypt(values)))
continue_with_instance = ask_input("continue_with_instance")
run = continue_with_instance != "3"
with open('test.log', 'w') as f:
f.seek(0)
Alice = RSA("Alice", 256)
Bob = RSA("Bob", 256)
public_Bob = Bob.public_key
public_Alice = Alice.public_key
Alice.getpublickey(public_Bob)
print("Info about Alice")
Alice.info()
Bob.getpublickey(public_Alice)
print("Info about Bob")
Bob.info()
print("Test encryption and decryption")
open = random.randint(1000000, 9999999999)
print("Open text: ", open)
cypher = Alice.encrypt(open)
print("Encrypted by Alice: ", cypher)
message = Bob.decrypt(cypher)
print("Decrypted by Bob: ", message)
print("Test signature and verification")
signa = Bob.Sign(open)
print("Message: {}\nSignature: {}".format(signa[0], signa[1]))
Ver = Alice.Verify(signa)
print("Verification: ", Ver)
print("Test for sending keys")
key = Alice.send_key()
if key == None:
key = Bob.send_key()
get = Alice.Receive(key)
print(get)
print("Key from Bob to Alice")
l, u = max(a, ceil(2 * B + r * n,
s)), min(b, (3 * B - 1 + r * n) // s)
if l > u:
print('Something Wrong')
return
appendAndMerge(M_new, l, u)
if len(M_new) == 0:
print('Something Wrong!!')
return
M = M_new
i += 1
if __name__ == '__main__':
plaintext = b'howdy!'
print('Plaintext -', plaintext)
m = pkcs1_5Pad(plaintext, 32)
print('m -', m)
cipher = RSA(256)
c = cipher.encrypt(m)
print('c -', c)
print('Does c have the right padding -', is_padding_correct(c, cipher))
decrypted_plaintext = attack(c, cipher, 32)
print('Decrypted Plaintext -', decrypted_plaintext)
print('Are they same? ', plaintext == decrypted_plaintext)
#!/usr/bin/env python
from rsa import RSA
from dh import DHUser, DHSession
from elgamal import EGUser, EGSession
if __name__ == '__main__':
# RSA
# CRYPTO-19
c19 = RSA(17, 11, 7)
assert c19._d == 23
assert c19.public_key() == (7, 187)
assert c19.private_key() == (23, 187)
# CRYPTO-20
c = RSA.encrypt(c19.public_key(), 88)
m = RSA.decrypt(c19.private_key(), c)
assert c == 11
assert m == 88
# Diffie-Hellman
# CRYPTO-35
dh_session = DHSession(353, 3)
dh_user_a = DHUser(dh_session, 97)
dh_user_b = DHUser(dh_session, 233)
assert dh_user_a.y == 40
assert dh_user_b.y == 248
assert dh_session.session_key(dh_user_a, dh_user_b) == \
dh_user_a.session_key(dh_user_b.public_key()) == \
dh_user_b.session_key(dh_user_a.public_key()) == 160
import binascii import gmpy2 from rsa import RSA rsa_0 = RSA() n_0 = rsa_0.get_public_key()[1] rsa_1 = RSA() n_1 = rsa_1.get_public_key()[1] rsa_2 = RSA() n_2 = rsa_2.get_public_key()[1] message = "secret" # we use crt to find message number = int(binascii.hexlify(message.encode()), 16) print(number) c_0 = rsa_0.encrypt(number) c_1 = rsa_1.encrypt(number) c_2 = rsa_2.encrypt(number) result = 0 result += c_0 * (n_1 * n_2) * pow(n_1 * n_2, -1, n_0) result += c_1 * (n_0 * n_2) * pow(n_0 * n_2, -1, n_1) result += c_2 * (n_0 * n_1) * pow(n_0 * n_1, -1, n_2) decrypted = result % (n_0 * n_1 * n_2) decrypted = int(gmpy2.cbrt(decrypted)) print(decrypted) print(binascii.unhexlify(hex(decrypted)[2:]).decode())
#设置变量精度
a = Decimal(0)
b = Decimal(n)
for x in range(limit):
t = (a+b)/2
#如果倍增后的明文是偶数，加倍所述明文未包裹模---模数是素数。这意味着明文是不到一半的模量。
if isEven([i2s(m1)]):
b = t
else:
a = t
m1 = (m1 * m2) % n
return i2s(int(b)).encode('string_escape')
if __name__ == "__main__":
msg = "VGhhdCdzIHdoeSBJIGZvdW5kIHlvdSBkb24ndCBwbGF5IGFyb3VuZCB3aXRoIHRoZSBGdW5reSBDb2xkIE1lZGluYQ=="
myoracle = oracle()
pub = myoracle.getPubKey()
rsa = RSA()
enc = rsa.encrypt(base64.b64decode(msg), pub)
returnmeg = attack(enc, pub, myoracle.isEven)
print returnmeg
print("[+] Generating keys! Be patient! :) ")
print()
start = timeit.default_timer()
rsa_object.generate_keys(512)
stop = timeit.default_timer()
print("[i] Keys generated!")
print('[+] Elapsed time:', stop-start)
print()
print("[i] Your public key is: ")
time.sleep(.5)
print(rsa_object.get_elements())
print()
raw_text = input("Write a message to encrypt: ")
start = timeit.default_timer()
rsa_object.encrypt(raw_text)
stop = timeit.default_timer()
time.sleep(.2)
print("[i] Your message has been encrypted.")
print("[+] Elapsed time:", stop-start)
time.sleep(1)
print()
print("[i] Decoding message...")
start = timeit.default_timer()
rsa_object.decrypt()
stop = timeit.default_timer()
print("[i] Decoded message with chinese remainder theorem:")
print("[i] ", rsa_object.decrypted_text)
print("[+] Elapsed time: ", stop-start)
print()
print("[i] Decoded message with Fast Modular Exponentiation:")
def dataReceived(self, data):
global LAST_HASH
for item in parse_request(data):
js = json.loads(item)
command = js['command']
if command == 'SENT':
listbox.clear()
for item in js['mails']:
setText(item)
if command == 'INBOX':
listbox.clear()
for item in js['mails']:
setText(item)
if command == 'GINBOX':
listbox.clear()
for item in js['mails']:
setText(item)
if command == 'MESSAGE':
LAST_HASH = js['HASH']
print LAST_HASH
m = hashlib.md5()
m.update(js['MESSAGE'])
print m.hexdigest()
if m.hexdigest() != LAST_HASH:
print 'BAD HASH'
j = json.loads(js['MESSAGE'])
ClientUI.readMessage(j)
if command == 'PRINT':
print js['data']
if command == 'USER':
if js['status'] == "OK":
currentUser.setParams(js)
tk.title('Client ' + currentUser.login)
else:
# TODO repeat log pass
raise Exception("Неверный логин или пароль")
if command == "REGISTRATION":
# TODO save s_key local
o_key, s_key = currentUser.generateRsaKeys()
print o_key
print s_key
with open(js['login'] + '.dat', 'w') as file:
json.dump({"s_key": s_key}, file)
self.sendData(
json.dumps({
"command": "SETOPENKEY",
"open_key": o_key,
"login": js['login']
}))
if command == 'OPENKEY':
for request in requests:
json_req = json.loads(request)
if json_req['command'] == 'SETMESSAGE' and json_req[
"recivers"] == js["login"]:
json_req["data"] = RSA.encrypt(json_req["data"],
js['open_key'])
self.sendData(json.dumps(json_req))
requests[:] = [
item for item in requests
if json.loads(item)['recivers'] != js["login"]
]
print data
m1 = (m1 * m2) % n
limit = int(math.log(n, 2)) + 1
getcontext().prec = limit
#设置变量精度
a = Decimal(0)
b = Decimal(n)
for x in range(limit):
t = (a + b) / 2
#如果倍增后的明文是偶数，加倍所述明文未包裹模---模数是素数。这意味着明文是不到一半的模量。
if isEven([i2s(m1)]):
b = t
else:
a = t
m1 = (m1 * m2) % n
return i2s(int(b)).encode('string_escape')
if __name__ == "__main__":
msg = "VGhhdCdzIHdoeSBJIGZvdW5kIHlvdSBkb24ndCBwbGF5IGFyb3VuZCB3aXRoIHRoZSBGdW5reSBDb2xkIE1lZGluYQ=="
myoracle = oracle()
pub = myoracle.getPubKey()
rsa = RSA()
enc = rsa.encrypt(base64.b64decode(msg), pub)
returnmeg = attack(enc, pub, myoracle.isEven)
print returnmeg
class RsaTest(object):
# Constructor
# Populates all verified outcomes
def __init__(self):
self.publicKey = 65535
self.privateKey = 14440774790529487
self.modValue = 15725236647914011
self.message = "Indiana"
self.verifiedResults = [
6203455842774329L, 10449696731316258L, 10444098371056832L,
13641245043391240L, 7463814312856899L, 10449696731316258L,
7463814312856899L
]
# Runs each tests and displays status of each
def run(self):
self.rsa = RSA()
if (self.testGCD() == False):
print("\nGCD TEST FAILED!")
return
else:
print("\nGCD TEST PASSED!")
if (self.testInvMod() == False):
print("MODULAR INVERSE TEST FAILED!")
return
else:
print("MODULAR INVERSE TEST PASSED!")
if (self.testIsPrime() == False):
print("PRIMALITY TEST FAILED!")
return
else:
print("PRIMALITY TEST PASSED!")
if (self.testGeneratePrimePair() == False):
print("PRIME PAIR GENERATION TEST FAILED!")
return
else:
print("PRIME PAIR GENERATION TEST PASSED!")
if (self.testEncryption() == False):
print("ENCRYPTION TEST FAILED!")
return
else:
print("ENCRYPTION TEST PASSED!")
if (self.testDecryption() == False):
print("DECRYPTION TEST FAILED!")
return
else:
print("DECRYPTION TEST PASSED!")
# Runs three tests to ensure Greatest COmmon Denominator functions properly
def testGCD(self):
if (self.rsa.gcd(12, 40) != 4):
return False
if (self.rsa.gcd(100, 1000) != 100):
return False
if (self.rsa.gcd(44, 99) != 11):
return False
return True
# Runs three tests to verify that inverse modulus works properly
def testInvMod(self):
if (self.rsa.invMod(12, 35) != 3):
return False
if (self.rsa.invMod(111, 1321) != 1202):
return False
if (self.rsa.invMod(45, 91) != 89):
return False
return True
# Runs three tests to verify primality function works correctly
def testIsPrime(self):
if (self.rsa.isPrime(1255567) != True):
return False
if (self.rsa.isPrime(7) != True):
return False
if (self.rsa.isPrime(7233) != False):
return False
return True
# Verifies that a random prime pair is generated so that p > q and p != q
def testGeneratePrimePair(self):
self.rsa.generatePrimePair()
a = self.rsa.primePair["p"]
b = self.rsa.primePair["q"]
if (self.rsa.isPrime(a) == False):
return False
if (self.rsa.isPrime(b) == False):
return False
if (b >= a):
return False
return True
# Verifies that the encryption algorithm works correctly
def testEncryption(self):
self.rsa.publicKey = self.publicKey
self.rsa.privateKey = self.privateKey
self.rsa.modValue = self.modValue
if (self.rsa.encrypt(self.message) != self.verifiedResults):
return False
return True
# Verifies that the decryption algorithm works correctly
def testDecryption(self):
self.rsa.publicKey = self.publicKey
self.rsa.privateKey = self.privateKey
self.rsa.modValue = self.modValue
if (self.rsa.decrypt(self.verifiedResults) != self.message):
return False
return True
class Server:
def __init__(self, host, port):
self.host=host
self.port=port
self.crypt=RSA()
tuple=self.crypt.prime_tuple()
p, q = tuple
n=p*q
e=self.crypt.public_key(tuple)
self.pub_k=(e, n)
d=self.crypt.private_key(tuple, e)
self.priv_k=(d, n)
async def start(self, loop):
serv = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
try:
serv.bind((self.host,self.port))
serv.setblocking(False)
print("server started...")
except socket.error as e:
print(str(e))
serv.listen()
while True:
conn , addr = await loop.sock_accept(serv)
print(str(addr)+" connected")
loop.create_task(self.handler(conn, loop))
async def handler(self, conn, loop):
obj=Data()
hash=SHA256.new()
username=""
password=""
public_key=""
await loop.sock_sendall(conn, str.encode("Enter username: "******"utf-8")
if res:
username=res
await loop.sock_sendall(conn, str.encode("Enter password: "******"users", username, password)
if not result:
obj.user_entry(username, password)
await loop.sock_sendall(conn, str.encode("Enter public key: "))
res_en=await loop.sock_recv(conn, 2048)
res=res_en.decode("utf-8")
if res:
try:
public_key=eval(res)
except Exception as e:
print(str(e))
await loop.sock_sendall(conn, str.encode("Name a group that you would want to create or join: "))
res_en=await loop.sock_recv(conn, 2048)
res=res_en.decode("utf-8")
if res is not None:
obj.create_table(res)
key=random.randint(100000, 1000000)
key=self.crypt.encrypt(str(key), public_key)
await loop.sock_sendall(conn, str.encode(key))
result=obj.check_table(res, username, password)
if not result:
obj.group_entry(res, username, password, key)
conn.close()
def test_decrypt_encrypt(self, p, q, e, m):
rsa = RSA(p, q, e)
self.assertEqual(m, rsa.decrypt(rsa.encrypt(m)))
import binascii from rsa import RSA rsa = RSA() plaintext_1 = 42 ciphertext_1 = rsa.encrypt(42) decrypted_1 = rsa.decrypt(ciphertext_1) print(plaintext_1, ciphertext_1, decrypted_1) plaintext_2 = "attack" number = int(binascii.hexlify(plaintext_2.encode()), 16) ciphertext_2 = rsa.encrypt(number) decrypted_2 = rsa.decrypt(ciphertext_2) string = binascii.unhexlify(hex(decrypted_2)[2:]).decode() print(plaintext_2, ciphertext_2, string)
def make(self,msg,key): pkcs15 = PKCS15() rsa = RSA() dgst = hashlib.sha1(message).digest() #计算msg的sha1 paddgst = pkcs15.pad(dgst,len(i2s(key[1]))) #把sha1进行填充，填充函数在前面有解释 return rsa.encrypt(paddgst,key) #调用rsa加密的方法进行加密，c39中有rsa的算法
from rsa import RSA
import src.hub as hub
"""
Universidade Federal de Alagoas - UFAL
Programa para criptografia RSA da matéria de Matemática Discreta
Participantes:
- Ana Ferreira
- Frederico Guilherme
- Lucas Tenório
- Phyllipe Bezerra
- Rafael Augusto
"""
if __name__ == "__main__":
# Opção selecionada no menu
option = hub.menu()
rsa = RSA()
if option == 1:
print("\n[1] Gerar chave pública")
rsa.generate_key()
elif option == 2:
print("\n[2] Criptografar")
rsa.encrypt()
elif option == 3:
print("\n[3] Descriptografar")
rsa.decrypt()
else:
exit(1)
return last_r, last_x * (-1 if a < 0 else 1), last_y * (-1 if m < 0 else 1)
def modinv(a, m):
g, x, y = extended_gcd(a, m)
if g != 1: raise ValueError
return x % m
plaintext = b'text Jun3 bug!'
ciphertexts = []
for _ in range(3):
cipher = RSA(150)
ciphertexts.append([cipher.encrypt(plaintext), cipher.n])
(c_0, n_0), (c_1, n_1), (c_2, n_2) = ciphertexts
c_0, c_1, c_2 = int.from_bytes(c_0, 'big'), int.from_bytes(c_1, 'big'),\
int.from_bytes(c_2, 'big')
ms_0, ms_1, ms_2 = n_1 * n_2, n_0 * n_2, n_0 * n_1
result = ((c_0 * ms_0 * modinv(ms_0, n_0)) + (c_1 * ms_1 * modinv(ms_1, n_1)) +\
(c_2 * ms_2 * modinv(ms_2, n_2)))
result = result % (n_0 * n_1 * n_2)
lo, hi = 0, result
while lo < hi:
mid = (lo + hi) // 2
if mid**3 < result:
lo = mid + 1
class MainWindow(QMainWindow):
def __init__(self):
super(MainWindow, self).__init__()
loadUi(os.getcwd() + '/gui.ui', self)
self.constraint_input()
self.connect_buttons()
self.elgamal = Elgamal()
self.rsa = RSA()
self.dh = DiffieHellman()
self.mode = None
self.format = None
def constraint_input(self):
self.onlyInt = QIntValidator()
self.RSA_key_e_value.setValidator(self.onlyInt)
self.RSA_key_d_value.setValidator(self.onlyInt)
self.RSA_key_n_value.setValidator(self.onlyInt)
self.RSA_sess_n_value.setValidator(self.onlyInt)
self.RSA_sess_g_value.setValidator(self.onlyInt)
self.RSA_sess_x_value.setValidator(self.onlyInt)
self.RSA_sess_y_value.setValidator(self.onlyInt)
self.EG_key_p_value.setValidator(self.onlyInt)
self.EG_key_g_value.setValidator(self.onlyInt)
self.EG_key_x_value.setValidator(self.onlyInt)
self.EG_key_y_value.setValidator(self.onlyInt)
self.EG_sess_n_value.setValidator(self.onlyInt)
self.EG_sess_g_value.setValidator(self.onlyInt)
self.EG_sess_x_value.setValidator(self.onlyInt)
self.EG_sess_y_value.setValidator(self.onlyInt)
self.RSA_output_text.setReadOnly(True)
self.EG_output_text.setReadOnly(True)
def connect_buttons(self):
# Main menu buttons
self.rsabutton.clicked.connect(
lambda: self.stackedWidget.setCurrentIndex(1))
self.egbutton.clicked.connect(
lambda: self.stackedWidget.setCurrentIndex(2))
# RSA buttons
self.RSA_key_savebutton.clicked.connect(self.rsa_save_key)
self.RSA_act_execbutton.clicked.connect(self.rsa_execute)
self.RSA_key_genbutton.clicked.connect(self.rsa_generate_key)
self.RSA_key_filebutton.clicked.connect(self.rsa_import_key)
self.RSA_act_decbutton.clicked.connect(self.set_mode_dec)
self.RSA_act_encbutton.clicked.connect(self.set_mode_enc)
self.RSA_input_filebutton.clicked.connect(self.rsa_get_input_file)
self.RSA_fmt_txtbutton.clicked.connect(self.set_format_txt)
self.RSA_fmt_filebutton.clicked.connect(self.set_format_file)
self.RSA_returnbutton.clicked.connect(
lambda: self.stackedWidget.setCurrentIndex(0))
self.RSA_sess_genbutton.clicked.connect(
self.rsa_diffiehellman_generate_key)
# Elgamal buttons
self.EG_key_savebutton.clicked.connect(self.elgamal_save_key)
self.EG_act_execbutton.clicked.connect(self.elgamal_execute)
self.EG_key_genbutton.clicked.connect(self.elgamal_generate_key)
self.EG_key_filebutton.clicked.connect(self.elgamal_import_key)
self.EG_act_decbutton.clicked.connect(self.set_mode_dec)
self.EG_act_encbutton.clicked.connect(self.set_mode_enc)
self.EG_input_filebutton.clicked.connect(self.elgamal_get_input_file)
self.EG_fmt_txtbutton.clicked.connect(self.set_format_txt)
self.EG_fmt_filebutton.clicked.connect(self.set_format_file)
self.EG_returnbutton.clicked.connect(
lambda: self.stackedWidget.setCurrentIndex(0))
self.EG_sess_genbutton.clicked.connect(
self.eg_diffiehellman_generate_key)
# DIFFIE HELMAN STUFF
def rsa_diffiehellman_generate_key(self):
self.dh.generate_parameters()
n, g, x, y = self.dh.get_parameters()
self.RSA_sess_n_value.setText(str(n))
self.RSA_sess_g_value.setText(str(g))
self.RSA_sess_x_value.setText(str(x))
self.RSA_sess_y_value.setText(str(y))
sess_key = self.dh.get_session_key()
self.RSA_sess_result.setText(str(sess_key))
def eg_diffiehellman_generate_key(self):
self.dh.generate_parameters()
n, g, x, y = self.dh.get_parameters()
self.EG_sess_n_value.setText(str(n))
self.EG_sess_g_value.setText(str(g))
self.EG_sess_x_value.setText(str(x))
self.EG_sess_y_value.setText(str(y))
sess_key = self.dh.get_session_key()
self.EG_sess_result.setText(str(sess_key))
# RSA STUFF
def rsa_save_key(self):
fileNamePub, _ = QFileDialog.getSaveFileName(
None, "Save RSA Public Key", "", "Public Key File (*.pub)")
fileNamePri, _ = QFileDialog.getSaveFileName(
None, "Save RSA Private Key", "", "Private Key File (*.pri)")
# self.rsa.generate_key()
self.rsa.save_generated_keys(fileNamePub, fileNamePri)
def rsa_set_public_key(self):
e = int(self.RSA_key_e_value.text())
n = int(self.RSA_key_n_value.text())
self.rsa.set_public_key(e, n)
def rsa_set_private_key(self):
d = int(self.RSA_key_d_value.text())
n = int(self.RSA_key_n_value.text())
self.rsa.set_private_key(d, n)
def rsa_execute(self):
self.rsa_set_public_key()
self.rsa_set_private_key()
st = time.time()
if self.mode == 'enc':
if self.format == 'txt':
self.rsa.get_input(
bytes(self.RSA_input_text.toPlainText(),
'UTF-8',
errors='ignore'))
self.rsa.encrypt()
self.RSA_output_text.setText(self.rsa.get_cipher_text())
# print("RSA get cipher text: ", bytes(self.rsa.get_cipher_text(), 'UTF-8'))
elif self.format == 'file':
if self.rsa_inpfile == None:
self.display_value_error("File belum dipilih")
return
assert self.rsa_inpfile is not None
self.rsa.enc_from_file(self.rsa_inpfile)
self.rsa.encrypt()
fileName, _ = QFileDialog.getSaveFileName(
None, "Save Encrypted File", "", "All Files (*)")
print("tes({})".format(fileName))
if fileName == "":
return
self.rsa.enc_write_file(fileName)
# Print file size
self.RSA_size_value.setText(
str(os.path.getsize(fileName) / 1000))
else:
self.display_value_error("Format belum dipilih")
return
elif self.mode == 'dec':
if self.format == 'txt':
check = self.RSA_input_text.toPlainText()
print("RSA_input toPlainText ", check)
print("length of text = {}".format(len(check)))
for c in check:
print(c, end='')
print()
self.rsa.get_input(
bytes(self.RSA_input_text.toPlainText(),
'UTF-8',
errors='ignore'))
self.rsa.parse_msg_to_enc()
self.rsa.decrypt()
self.RSA_output_text.setText(self.rsa.get_plain_text())
elif self.format == 'file':
if self.rsa_inpfile == None:
self.display_value_error("File belum dipilih")
return
assert self.rsa_inpfile is not None
self.rsa.dec_from_file(self.rsa_inpfile)
self.rsa.decrypt()
fileName, _ = QFileDialog.getSaveFileName(
None, "Save Encrypted File", "", "All Files (*)")
print("tes({})".format(fileName))
if fileName == "":
return
self.rsa.dec_write_file(fileName)
# Print file size
self.RSA_size_value.setText(
str(os.path.getsize(fileName) / 1000))
else:
self.display_value_error("Format belum dipilih")
return
else:
self.display_value_error("Aksi belum dipilih")
return
end = str(time.time() - st)
# Set time execution
self.RSA_time_value.setText(end)
def rsa_generate_key(self):
self.rsa.generate_key()
d, n1 = self.rsa.get_private_key()
e, n2 = self.rsa.get_public_key()
assert n1 == n2
self.RSA_key_n_value.setText(str(n1))
self.RSA_key_d_value.setText(str(d))
self.RSA_key_e_value.setText(str(e))
def rsa_import_key(self):
fileNamePub, _ = QFileDialog.getOpenFileName(
None, "Import RSA Public Key", "", "Public Key File (*.pub)")
fileNamePri, _ = QFileDialog.getOpenFileName(
None, "Import RSA Private Key", "", "Private Key File (*.pri)")
self.rsa.import_public_key(fileNamePub)
self.rsa.import_private_key(fileNamePri)
# display the imported key in the text box
d, n1 = self.rsa.get_private_key()
e, n2 = self.rsa.get_public_key()
assert n1 == n2
self.RSA_key_n_value.setText(str(n1))
self.RSA_key_d_value.setText(str(d))
self.RSA_key_e_value.setText(str(e))
def rsa_get_input_file(self):
fileName, _ = QFileDialog.getOpenFileName(None, "Get Input File", "",
"All Files (*)")
self.rsa_inpfile = fileName
fileName = fileName.split('/')[-1]
self.RSA_inp_file_label.setText("Chosen file: {}".format(fileName))
# ELGAMAL STUFF
def elgamal_save_key(self):
fileNamePub, _ = QFileDialog.getSaveFileName(
None, "Save Elgamal Public Key", "", "Public Key File (*.pub)")
fileNamePri, _ = QFileDialog.getSaveFileName(
None, "Save Elgamal Private Key", "", "Private Key File (*.pri)")
self.elgamal.generate_key()
self.elgamal.save_generated_keys(fileNamePub, fileNamePri)
def elgamal_set_public_key(self):
p = int(self.EG_key_p_value.text())
g = int(self.EG_key_g_value.text())
y = int(self.EG_key_y_value.text())
self.elgamal.set_public_key(p, g, y)
def elgamal_set_private_key(self):
p = int(self.EG_key_p_value.text())
x = int(self.EG_key_x_value.text())
self.elgamal.set_private_key(p, x)
def elgamal_execute(self):
self.elgamal_set_public_key()
self.elgamal_set_private_key()
st = time.time()
if self.mode == 'enc':
if self.format == 'txt':
self.elgamal.get_input(
bytes(self.EG_input_text.toPlainText(),
'UTF-8',
errors='ignore'))
self.elgamal.encrypt()
self.EG_output_text.setText(self.elgamal.get_cipher_text())
elif self.format == 'file':
self.elgamal.enc_from_file(self.elgamal_inpfile)
self.elgamal.encrypt()
fileName, _ = QFileDialog.getSaveFileName(
None, "Save Encrypted File", "", "All Files (*)")
self.elgamal.enc_write_file(fileName)
# Print file size
self.EG_size_value.setText(
str(os.path.getsize(fileName) / 1000))
else:
self.display_value_error("Format belum dipilih")
return
elif self.mode == 'dec':
if self.format == 'txt':
self.elgamal.get_input(
bytes(self.EG_input_text.toPlainText(),
'UTF-8',
errors='ignore'))
self.elgamal.parse_msg_to_enc()
self.elgamal.decrypt()
self.EG_output_text.setText(self.elgamal.get_plain_text())
elif self.format == 'file':
self.elgamal.dec_from_file(self.elgamal_inpfile)
self.elgamal.decrypt()
fileName, _ = QFileDialog.getSaveFileName(
None, "Save Encrypted File", "", "All Files (*)")
self.elgamal.dec_write_file(fileName)
# Print file
self.EG_size_value.setText(
str(os.path.getsize(fileName) / 1000))
else:
self.display_value_error("Format belum dipilih")
return
else:
self.display_value_error("Aksi belum dipilih")
return
end = str(time.time() - st)
# Set time execution
self.EG_time_value.setText(end)
def elgamal_get_input_file(self):
fileName, _ = QFileDialog.getOpenFileName(None, "Get Input File", "",
"All Files (*)")
self.elgamal_inpfile = fileName
fileName = fileName.split('/')[-1]
self.EG_inp_file_label.setText("Chosen file: {}".format(fileName))
def elgamal_import_key(self):
fileNamePub, _ = QFileDialog.getOpenFileName(
None, "Import Elgamal Public Key", "", "Public Key File (*.pub)")
fileNamePri, _ = QFileDialog.getOpenFileName(
None, "Import Elgamal Private Key", "", "Private Key File (*.pri)")
self.elgamal.import_public_key(fileNamePub)
self.elgamal.import_private_key(fileNamePri)
def elgamal_generate_key(self):
self.elgamal.generate_key()
g, y, p = self.elgamal.get_public_key()
x, p = self.elgamal.get_private_key()
self.EG_key_p_value.setText(str(p))
self.EG_key_g_value.setText(str(g))
self.EG_key_x_value.setText(str(x))
self.EG_key_y_value.setText(str(y))
# OTHER STUFF
def set_mode_enc(self):
self.mode = 'enc'
def set_mode_dec(self):
self.mode = 'dec'
def set_format_txt(self):
self.format = 'txt'
def set_format_file(self):
self.format = 'file'
# VALIDATION STUFF
def display_value_error(self, err_msg: str):
msg = QMessageBox()
msg.setIcon(QMessageBox.Warning)
msg.setText("Error")
msg.setInformativeText(err_msg)
msg.setWindowTitle("Error")
msg.setStandardButtons(QMessageBox.Ok)
retval = msg.exec_()
def make(self, msg, key):
pkcs15 = PKCS15()
rsa = RSA()
dgst = hashlib.sha1(message).digest() #计算msg的sha1
paddgst = pkcs15.pad(dgst, len(i2s(key[1]))) #把sha1进行填充，填充函数在前面有解释
return rsa.encrypt(paddgst, key) #调用rsa加密的方法进行加密，c39中有rsa的算法
