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from cryptography.fernet import Fernet
from cryptography.hazmat.primitives import hashes
from cryptography.hazmat.primitives.kdf.pbkdf2 import PBKDF2HMAC
import os
import base64
import hashlib
from pathlib import Path
import qr
import stegan
def create_key(passw):
key = passw.encode()
h = hashlib.new('sha256')
h.update(key)
key = h.hexdigest()
key = key.encode()
#salt = os.urandom(16)
salt = key
kdf = PBKDF2HMAC(
algorithm=hashes.SHA256(),
length=32,
salt=salt,
iterations=480000,
)
key = base64.urlsafe_b64encode(kdf.derive(key))
return key
def encrypt(passw,mes=None,img=None,doc=None):
#key = Fernet.generate_key()
key = create_key(passw)
fernet = Fernet(key)
enc_mes=None
enc_file=None
if mes != None and mes != "":
bytes_m = mes.encode()
enc_mes = fernet.encrypt(bytes_m)
enc_mes = f'{enc_mes}+aaa+'
if img != None:
with open(f'{img}', "rb") as image_file:
bytes_i = base64.b64encode(image_file.read())
if mes != None and mes != "":
im_bytes = fernet.encrypt(bytes_i)
enc_mes = f'{enc_mes}{im_bytes}+bbb+'
else:
im_bytes = fernet.encrypt(bytes_i)
enc_mes = f'{im_bytes}+bbb+'
#enc_qr = qr.make_qr(txt=(enc_mes.strip('"')))
qr_link = "https://omnibus-fernet-encryption-qr.hf.space"
enc_qr = stegan.conv_im(qr_link=qr_link,data=enc_mes)
if doc != None:
print(dir(doc))
print(doc.name)
#print(doc.file)
doc_name = doc.name
doc_name = doc_name.split("/",4)[4]
#bytes_d = doc.encode()
#doc = Path(doc)
with open(doc.name, "rb") as file:
# read all file data
file_data = file.read()
enc_doc = fernet.encrypt(file_data)
og_name = doc.name
og_end = og_name.split(".",1)[1]
og_front=og_name.split(".",1)[0]
enc_file=f'{doc.name}.ocrpt'
with open(enc_file, "wb") as file:
file.write(enc_doc)
return enc_mes,enc_file,enc_qr
def decrypt(passw,enc_in=None):
key = create_key(passw)
fernet = Fernet(key)
dec_im = None
mes_dec= None
enc_in=enc_in.strip('"')
print (f'enc_in :::: {enc_in}')
if "+aaa+" in enc_in:
mes1=enc_in.split("+aaa+",1)[0]
mes1=mes1.strip("b'").strip("'")
mes_bytes = bytes(mes1,'utf-8')
mes_dec = fernet.decrypt(mes_bytes).decode()
if "+bbb+" in enc_in:
mes12=enc_in.split("+aaa+",1)[1]
mes2=mes12.split("+bbb+",1)[0]
mes2=mes2.strip("b'").strip("'")
im_bytes = bytes(mes2,'utf-8')
print(f'im_bytes::{im_bytes}')
mes2 = fernet.decrypt(mes2).decode()
#base = bytes(decMessage, 'utf-8')
with open(f"finished_im.png", "wb") as fh:
#fh.write(base64.decodebytes(im_bytes))
fh.write(base64.decodebytes(bytes(mes2, 'utf-8')))
fh.close
dec_im = "finished_im.png"
if not "+aaa+" in enc_in:
if "+bbb+" in enc_in:
mes2 = enc_in.split("+bbb+",1)[0]
mes2=mes2.strip("b'").strip("'")
im_bytes = bytes(mes2,'utf-8')
print(f'im_bytes2::{im_bytes}')
mes2 = fernet.decrypt(mes2).decode()
#base = bytes(decMessage, 'utf-8')
with open(f"finished_im.png", "wb") as fh:
#fh.write(base64.decodebytes(im_bytes))
fh.write(base64.decodebytes(bytes(mes2, 'utf-8')))
fh.close
dec_im = "finished_im.png"
return(dec_im,mes_dec)
def decode_doc(passw,doc=None):
key = create_key(passw)
fernet = Fernet(key)
doc_name = doc.name
doc_name = doc_name.split("/",4)[4]
#bytes_d = doc.encode()
#doc = Path(doc)
with open(doc.name, "rb") as file:
# read all file data
file_data = file.read()
dec_doc = fernet.decrypt(file_data)
og_name = doc.name
og_end = og_name.split(".",1)[1]
og_front=og_name.split(".",1)[0]
dec_file = doc.name.strip(".ocrpt")
#enc_file=f'{doc.name}.ocrpt'
with open(dec_file, "wb") as file:
file.write(dec_doc)
return dec_file
def decode_qr(im,passw):
with open(f'{im}', "rb") as image_file:
bytes_i = base64.b64encode(image_file.read())
decode_qr = stegan.decode(im)
dec_im = decrypt(passw, enc_in=decode_qr)
'''
print(f'decoded QR::{decode_qr}')
key = create_key(passw)
fernet = Fernet(key)
dec_im = None
mes_dec= None
enc_in=decode_qr.strip('"')
print (f'enc_in :::: {enc_in}')
if "+aaa+" in enc_in:
mes1=enc_in.split("+aaa+",1)[0]
mes1=mes1.strip("b'").strip("'")
mes_bytes = bytes(mes1,'utf-8')
mes_dec = fernet.decrypt(mes_bytes).decode()
if "+bbb+" in enc_in:
mes12=enc_in.split("+aaa+",1)[1]
mes2=mes12.split("+bbb+",1)[0]
mes2=mes2.strip("b'").strip("'")
im_bytes = bytes(mes2,'utf-8')
print(f'im_bytes::{im_bytes}')
mes2 = fernet.decrypt(mes2).decode()
#base = bytes(decMessage, 'utf-8')
with open(f"finished_im.png", "wb") as fh:
#fh.write(base64.decodebytes(im_bytes))
fh.write(base64.decodebytes(bytes(mes2, 'utf-8')))
fh.close
dec_im = "finished_im.png"
if not "+aaa+" in enc_in:
if "+bbb+" in enc_in:
mes2 = enc_in.split("+bbb+",1)[0]
mes2=mes2.strip("b'").strip("'")
im_bytes = bytes(mes2,'utf-8')
print(f'im_bytes2::{im_bytes}')
mes2 = fernet.decrypt(mes2).decode()
#base = bytes(decMessage, 'utf-8')
with open(f"finished_im.png", "wb") as fh:
#fh.write(base64.decodebytes(im_bytes))
fh.write(base64.decodebytes(bytes(mes2, 'utf-8')))
fh.close
dec_im = "finished_im.png"
'''
return(dec_im,mes_dec)
with gr.Blocks() as app:
with gr.Tab("Encrypt"):
pass_in=gr.Textbox(label="Set Password")
with gr.Tab("String"):
mes = gr.Textbox(label = "Message")
with gr.Row():
im = gr.Image(type="filepath")
with gr.Tab("File"):
doc=gr.File()
enc_doc_out=gr.File()
en_btn = gr.Button("Encrypt")
enc_out = gr.Textbox(label="Encrypted Bytes")
enc_qr_out = gr.Image(label = "Encrypted QR")
with gr.Tab("Decrypt"):
pass_out = gr.Textbox(label="Enter Password")
with gr.Tab("String"):
enc_in = gr.Textbox(label="Encrypted Bytes")
d_btn = gr.Button("Decrypt")
d_txt = gr.Textbox(label="Decrypted")
d_im =gr.Image(label="Decrytped Image")
with gr.Tab("File"):
dec_doc_in = gr.File()
dec_doc_btn = gr.Button("Decrypt")
dec_doc_out=gr.File()
with gr.Tab("QR"):
dec_qr_im = gr.Image(type="filepath")
dec_qr_txt = gr.Textbox(label="Decrypted")
dec_qr_im_out =gr.Image(label="Decrytped Image")
dec_qr_btn = gr.Button("Decrypt")
dec_qr_btn.click(decode_qr,[dec_qr_im,pass_out],[dec_qr_im_out,dec_qr_txt])
dec_doc_btn.click(decode_doc,[pass_out,dec_doc_in],dec_doc_out)
en_btn.click(encrypt,[pass_in,mes,im,doc],[enc_out,enc_doc_out,enc_qr_out])
d_btn.click(decrypt,[pass_out,enc_in],[d_im,d_txt])
app.launch()
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