def send_text_file(self):
"""
This function receives a path and reads the data from the file in this path.
It sends the data to the server in an encrypted form.
"""
Tk().withdraw()
# Asking the server's user to insert a path to create a text file in.
path = askopenfilename()
# Opening the file in a read mode.
with open(path, mode='rt', encoding='utf-8') as f:
# Creating the public key and preparing the socket.
pub_key = self.recv_pub_key()
my_socket = self.socket_operations()
chunk_size = 5
f_contents = f.read(chunk_size)
# Reading the file's content until there is nothing to read.
while True:
if len(f_contents) == 0:
break
# Encrypting the data, sending it to the server and reading the new data.
f_contents = encrypt(f_contents, pub_key)
my_socket.send(f_contents.encode('utf-8'))
f_contents = f.read(chunk_size)
my_socket.close()
exit(0)
def encrypt(self):
if not self.ptxt.get():
tkMessageBox.showinfo(message="Don't leave Empty")
return
self.etxt.set(encrypt((str(self.ptxt.get()))))
self.history.config(state='normal')
self.history.insert(Tkinter.END,
'encrypt:\n' + (str(self.etxt.get())) + '\n')
self.history.config(state='disabled')
self.history.see(Tkinter.END)
def encrypt_watermarking(file_name, mark_file_name, marks="1111000"):
# encrypt & binary
encrypt_mark = encrypt(code=marks)
len_encrypt_mark = len(encrypt_mark)
binary_mark = pad_encrypt(encrypt_mark)
# print(binary_mark)
binary_mark_len = int(len(binary_mark) / 8)
# read from file && count by freq
contents = read_document(file_name)
word_count = count(contents)
words = Word.get_words(word_count.keys())
assert len(words) >= binary_mark_len, u"mark的长度超过了文本的字符数，尝试缩小mark或增长文本"
# watermarking
for index, word in enumerate(words[:binary_mark_len]):
mark = binary_mark[index * 8:index * 8 + 8]
word.set_special_style(True, mark)
# print
write_document(words, mark_file_name, contents=contents)
return len_encrypt_mark
""" This script is only a testing script for our RSA algorithm.py """ from RSA import generate, encrypt, decrypt key_pair = generate(1024) print "Generated Key pairs" public_key = key_pair["public"] private_key = key_pair["private"] text = "Hello World! Testing the first RSA implementation." print "Input Text:" print text # Now encrypt ciphertext = encrypt(public_key, text) print "Ciphertext is: " print ciphertext # Now decrypt output_text = decrypt(private_key, ciphertext) print "The encrypted text was:" print output_text
def right_path(file_path):
if (file_path == ""):
return file_path
separate = file_path.split("\\")
new = ""
for temp in separate:
new += temp + "\\"+"\\"
return new
while(True):
command = raw_input('Encrypt file or decrypt cipher?: ')
if command.lower() == 'encrypt':
file_path = raw_input('Include full file path: ')
file_path = right_path(file_path)
file_name = raw_input('Enter file name with extension: ')
file_path += file_name
encrypt(file_path)
print("File successfully encrypted")
break
if command.lower() == 'decrypt':
cipher_path = raw_input('Include full cipher path: ')
cipher_path = right_path(cipher_path)
file_name = raw_input('Enter file name with extension: ')
cipher_path += file_name
decrypt(cipher_path)
print("Cipher successfully decrypted")
break
print("Wrong command, try again")
plaintext = "Daniel Han Kuo-yu is a Taiwanese politician. He was a member of the Legislative Yuan from 1993 to 2002, " \
"representing a portion of Taipei County for three terms. He later became general manager of Taipei " \
"Agricultural Products Marketing Corporation. In 2017, Han contested the Kuomintang chairmanship, " \
"losing to Wu Den-yih. Han was elected Mayor of Kaohsiung in November 2018, and became the first " \
"Kuomintang politician since Wu in 1998 to hold the office. Han is the KMT's nominee running against " \
"incumbent president Tsai Ing-wen in the 2020 Taiwan presidential election. "
ciphertext = ""
p, q, n, e, d = initial(1024)
print("==KEY==")
print("p=" + str(p))
print("q=" + str(q))
print("n=" + str(n))
print("e=" + str(e))
print("d=" + str(d) + "\n")
print("==PLAINTEXT==")
print(plaintext + "\n")
print("==CIPHERTEXT==")
ciphertext = encrypt(plaintext, n, e)
print(ciphertext + "\n")
print("==CIPHERTEXT DECRYPT==")
plaintext_decrypt = decrypt(ciphertext, n, d)
print(plaintext_decrypt + "\n")
if plaintext == plaintext_decrypt:
print("SUCCESS")
PORT_NUMBER = 5000
SIZE = 1024
print("Test client sending packets to IP {0}, via port {1}\n".format(
SERVER_IP, PORT_NUMBER))
mySocket = socket(AF_INET, SOCK_DGRAM)
message = 'hello'
#first generate the keypair
#get these two numbers from the excel file
p = 1297333
q = 1297693
###################################your code goes here#####################################
#generate public and private key from the p and q values
pk = generate_keypair(p, q) #RSA Keypairs
public = pk[1]
private = pk[0]
message = ('public_key: %d %d' % (public[0], public[1]))
mySocket.sendto(message.encode(), (SERVER_IP, PORT_NUMBER))
while True:
message = input()
###################################your code goes here#####################################
#message is a string input received from the user, encrypt it with RSA character by character and save in message_encoded
#message encoded is a list of integer ciphertext values in string format e.g. ['23131','352135','54213513']
for i in message: #loop through message, and send each character through RSA encrytion with private key
message_encoded = str(encrypt(private, i))
mySocket.sendto(message_encoded.encode(), (SERVER_IP, PORT_NUMBER))
#[mySocket.sendto(code.encode(),(SERVER_IP,PORT_NUMBER)) for code in message_encoded]
sys.exit()
q = 1297651
# ##################################your code goes here#####################################
# generate public and private key from the p and q values
public, private = generate_keypair(p, q)
# send key
message = ('public_key: %d %d' % (public[0], public[1]))
mySocket.sendto(message.encode(), (SERVER_IP, PORT_NUMBER))
# send des_key
message = ('des_key')
mySocket.sendto(message.encode(), (SERVER_IP, PORT_NUMBER))
# ##################################your code goes here#####################################
# encode the DES key with RSA and save in DES_encoded, the value below is just an example
des_encoded = []
for i in message:
cipher = encrypt(private, i)
des_encoded.append(cipher)
[
mySocket.sendto(code.encode(), (SERVER_IP, PORT_NUMBER))
for code in des_encoded
]
# read image, encode, send the encoded image binary file
file = open(r'penguin.jpg', "rb")
data = file.read()
file.close()
# ##################################your code goes here#####################################
# the image is saved in the data parameter, you should encrypt it using des.py
# set cbc to False when performing encryption, you should use the des class
# use bytearray to send the encryped image through network
# r_byte is the final value you will send through socket
public, private = generate_keypair(p, q) # returns (e,n) and (d, n)
print("RSA Public Key pair = " + str(public))
print("RSA Private Key pair = " + str(private))
# read message from user
print("enter the DES key, 8 Characters")
des_key = input()
while len(des_key) != 8: # ensure proper input length
print("wrong! 8 characters. Try again:")
des_key = input()
# encrypt the DES key
print("encrypting DES KEY with RSA")
des_encoded = [str(encrypt(public, chars)) for chars in des_key]
print("the encrypted key is " + str(des_encoded))
# encrypt the image with DES
print('encrypting image using DES')
file = open(r'penguin.jpg', "rb")
image_data = file.read()
file.close()
coder = des.des() # des is a class defined in des.py
r = coder.encrypt(des_key, image_data, cbc=False) # encrypted image
# write the encrypted image into file
r_byte = bytearray()
for x in r:
r_byte += bytes([ord(x)])
file = open(r'penguin_encrypted.bin', "wb+")
if (int(userOption) == 1):
generateKey(2048)
if (int(userOption) == 2):
print("Encryption for: ")
print("1. This Client")
print("2. Another Keypair")
encryptionOption = input("Your Option: ")
if (encryptionOption == 1):
userMessage = raw_input("Enter Message to Encrypt: ")
file = open("n.txt","r")
n = int(file.read())
file.close()
e = 5
print(encrypt(e,n,userMessage))
if (encryptionOption == 2):
userMessage = input("Enter Message to Encrypt: ")
user_e = input("Enter Public Exponent: ")
user_n = input("Enter Modulus: ")
if (int(userOption) == 3):
print("Decrypt for: ")
print("1. Current Client")
print("2. Another Client")
encryptionOption = input("Your Option: ")
if (encryptionOption == 1):
userMessage = raw_input("Enter Ciphertext to Decrypt: ")
from RSA import generate_keypair, encrypt, decrypt, find_primes
if __name__ == '__main__':
'''
Detect if the script is being run directly by the user
'''
print("RSA Encrypter/ Decrypter")
p, q = find_primes(200)
print("Generating your public/private keypairs now . . .")
public, private = generate_keypair(p, q)
print("Your public key is {} and your private key is {}".format(
public, private))
message = input("Enter a message to encrypt with your private key: ")
encrypted_msg = encrypt(public, message)
print("Your encrypted message is: ")
print('---'.join(map(lambda x: str(x), encrypted_msg)))
print("Decrypting message with public key ", public, " . . .")
print("Your message is:")
print(decrypt(private, encrypted_msg))
try: #Verifica se o arquivo possui uma chave válida
chaves = content[0].split(',')
chaves = [int(chaves[i]) for i in range(len(chaves))]
except: #Caso não possua, cria uma chave
print('Nenhuma chave válida foi encontrada, deseja incerir uma nova? [s/n]: ')
switch = input()
while (switch.upper() != 'S') and (switch.upper() != 'N'): #Verifica se a resposta é válida
print('Resposta inválida')
switch = input()
while True: #Faz a enttrada da chave e testa se é válida
if switch.upper() == 'S':
chave = input('Entre com chaves válidas no seguinte formato "N, Chave Pública, Chave Privada": ')
try:
chave = chave.split(',')
chave = (int(chave[0]),int(chave[1]),int(chave[2]))
while decrypt(encrypt('a',chave),chave) != 'a': #Testa validade da chave
print('Chave inválida')
chave = input('Entre com chaves válidas no seguinte formato "N, Chave Pública, Chave Privada": ')
except:
print('Formato de chave inválido')
elif switch.upper() == 'N': #Caso não seja inserida uma chave, o programa cria uma
chave = keyrsa(lista_primos(200))
print('A chave',chave,'foi gerada com sucesso!')
log = open('log.txt','r')
conteudo = log.readlines()
log = open('log.txt','w')
conteudo.insert(0,str(chave[0])+','+str(chave[1])+','+str(chave[0])+'\n')
log.writelines(conteudo)
log.close()
break
# first generate the keypair
# get these two numbers from the excel file
p = 1297273
q = 1297651
# generate public and private key from the p and q values
# public is (e, n) and private is (d, n)
public, private = generate_keypair(p, q)
message = ('public_key: %d %d' % (public[0], public[1]))
mySocket.sendto(message.encode(), (SERVER_IP, PORT_NUMBER))
while True:
message = input("Enter a message:")
message.join('\n')
message_encoded = []
for i in message:
cipher = str(encrypt(private, i))
message_encoded.append(cipher)
# message is a string input received from the user, encrypt it with RSA character by character and save in message_encoded
# message encoded is a list of integer ciphertext values in string format e.g. ['23131','352135','54213513']
[
mySocket.sendto(code.encode(), (SERVER_IP, PORT_NUMBER))
for code in message_encoded
]
sys.exit()
# What could I be doing wrong?
#first generate the keypair
#get these two numbers from the excel file
p = 1297447
q = 1297973
###################################your code goes here#####################################
#generate public and private key from the p and q values
public, private = generate_keypair(p, q)
message = ('public_key: %d %d' % (public[0], public[1]))
mySocket.sendto(message.encode(), (SERVER_IP, PORT_NUMBER)) #send key
###################################your code goes here#####################################
# Encrypt and send the DES key using RSA
message_encoded = []
for x in range(len(des_key)):
message_encoded.append(str(encrypt(private, des_key[x])))
message = ",".join(message_encoded)
message = "des_key," + message
mySocket.sendto(message.encode(), (SERVER_IP, PORT_NUMBER))
#read image, encode, send the encoded image binary file
file = open(r'penguin.jpg', "rb")
data = file.read()
file.close()
###################################your code goes here#####################################
#the image is saved in the data parameter, you should encrypt it using des.py
#set cbc to False when performing encryption, you should use the des class
#coder=des.des(), use bytearray to send the encryped image through network
#r_byte is the final value you will send through socket
digit_lenght = prime_1 * prime_2
if digit_lenght < 400:
digit_lenght = 1
public_key, private_key, phi = gen_keys(prime_1, prime_2,
2 * len(str(digit_lenght)))
e, n = public_key
d = private_key[0]
print(f"Le couple de nombre premier (p, q) est : {prime_1}, {prime_2}")
print(f"Produit des deux nombres premiers nommés N = {n}")
print(f"Phi_n = (prime1-1)(prime2-1) = {phi}")
print(f"d => d*e % phi_n = 1 : {d}")
print(f"e => copremier avec phi_n dans ]1, phi_n[ : {e}")
print(f"La clé publique (e, N) = {public_key}")
print(f"La clé privée est (d, N) = {private_key}\n")
print(context_salutation_justified)
print(context_instruction)
message = input('Message d\'amour : ')
message_crypté = encrypt(message, public_key)
text_crypté = ''.join(str(mot) for mot in message_crypté)
hexa_text_crypté = hex(int(text_crypté))
message_décrypter = decrypt(message_crypté, private_key)
text_décrypté = ''.join(message_décrypter)
print(f'Le message envoyé en hexadécimale : {hexa_text_crypté}')
print(context_decrypt_justified)
print(f'Le message reçu : {text_décrypté}')
