def quickEncrypt(event):
global messageWindow
inFile = openFunc(None)
if inFile == None:
print("Encryption Error: File Not Opened!")
return
#convert jpeg to png if needed
if inFile[-4:] == ".jpg":
im = Image.open(inFile)
im.save(inFile[:-4] + ".png")
inFile = (inFile[:-4] + ".png")
setSecretWindow()
while lock == 0:
messageWindow.update_idletasks()
messageWindow.update()
outFile = filedialog.asksaveasfilename(defaultextension="png",
initialdir='/',
title='Save As...',
filetypes=(("PNG files", "*.png"),
("all files", "*.*")))
if outFile:
x = DCT()
secret = x.DCTEn(inFile, quickMess, outFile)
else:
print('No filename given')
return
def encryptFn(event):
global inFile
global outFile
global newImgFrame
global endImage
global inputBox
outFile = filedialog.asksaveasfilename(defaultextension="png",
initialdir='/',
title='Save As...',
filetypes=(("PNG files", "*.png"),
("all files", "*.*")))
if outFile:
x = DCT()
secretMess = inputBox.get()
inputBox.delete(0, 'end')
secret = x.DCTEn(inFile, secretMess, outFile)
newImgFrame.pack_forget()
if endImage:
endImage.pack_forget()
#resize image to fit in display viewer
image = Image.open(outFile)
newImgFrame = tk.Frame(imageFrame,
height=450,
width=300,
relief='ridge')
newImgFrame.pack(side='right', padx=25, pady=25)
basewidth = 300
wpercent = (basewidth / float(image.size[0]))
hsize = int((float(image.size[1]) * float(wpercent)))
image = image.resize((basewidth, hsize), Image.ANTIALIAS)
photo = ImageTk.PhotoImage(image)
endImage = tk.Label(newImgFrame,
image=photo,
height=450,
width=300,
text='Encrypted Image')
endImage.image = photo
endImage.pack()
else:
print('No filename given')
return
def lsbAlgoStegano(type, secret_string, encrypt_decrypt, encryption_technique):
if (encrypt_decrypt == options[0]):
if (len(secret_string) == 1):
print("Empty Secret:: Showing warning")
tk.messagebox.showwarning(
"Data Required", "Please enter secret data to be encoded")
return
if (type == "DCT"):
if (encrypt_decrypt == options[0]):
file_name = encryption_technique + "DCT.txt"
text_file = open(file_name, "w")
text_file.write(str(secret_string))
text_file.close
if encryption_technique == "OTP":
enc = OneTimePad(secret_string, "DCT")
enc_string = enc.run(encrypt_decrypt)
elif encryption_technique == "RSA":
enc = RSACipher(secret_string, "DCT")
enc_string = enc.run(encrypt_decrypt)
elif encryption_technique == "AES":
enc = AESCipher(secret_string, "DCT")
enc_string = enc.run(encrypt_decrypt)
elif encryption_technique == "DES":
enc = DESCipher(secret_string, "DCT")
enc_string = enc.run(encrypt_decrypt)
outFile = "secret/secretDCT.png"
x = DCT(image_path)
secret = x.DCTEn(enc_string, outFile)
print("secret :: DCT:: ", secret)
# secret = red.hide(image_path, secret_string)
# secret.save("secret.png")
displayImage("secret/secretDCT.png")
img1 = cv2.imread(image_path, cv2.IMREAD_UNCHANGED)
print(img1.shape)
img2 = cv2.imread("secret/secretDCT.png", cv2.IMREAD_UNCHANGED)
print(img1.shape, img2.shape)
if is_grey_scale(image_path) and len(img2.shape) == 3:
imgA = cv2.cvtColor(img1, cv2.COLOR_BGRA2GRAY)
imgB = cv2.cvtColor(img2, cv2.COLOR_BGRA2GRAY)
else:
imgA = cv2.cvtColor(img1, cv2.COLOR_BGR2GRAY)
imgB = cv2.cvtColor(img2, cv2.COLOR_BGR2GRAY)
compare_images(imgA, imgB, "DCT", encryption_technique)
else:
y = DCT(image_path)
secret = y.DCTDe()
# secret = red.reveal(image_path)
print("Secret is ", secret)
if encryption_technique == "OTP":
dec = OneTimePad(secret, "DCT")
secret_message = dec.run(encrypt_decrypt)
elif encryption_technique == "RSA":
dec = RSACipher(secret, "DCT")
secret_message = dec.run(encrypt_decrypt)
elif encryption_technique == "AES":
dec = AESCipher(secret, "DCT")
secret_message = dec.run(encrypt_decrypt)
elif encryption_technique == "DES":
dec = DESCipher(secret, "DCT")
secret_message = dec.run(encrypt_decrypt)
#dec = OneTimePad(secret, "DCT")
#secret_message = dec.run(encrypt_decrypt)
filename = encryption_technique + "DCT.txt"
key_file = open(filename, "r")
original_message = key_file.readline()
key_file.close()
precentage_comparison = compare_strings(original_message,
secret_message)
print("The strings are equal by", precentage_comparison, "parts")
addtofile("DCT", encryption_technique[:3], precentage_comparison)
displaySecret(secret_message)
saveSecretToFile(secret_message)