def decrypt():
filepath = "C:/Users/kunal/Workspace/PycharmProjects/steganoisro/toencryptin/"
bname = os.path.basename(args['image'])
print " file to decrypt is " + str(filepath + bname)
image = Image.open(filepath + bname)
matroschka = stg.extract_msg(image)
data_type, iv, encrypted_secret = matroschka.split('--:--')
key = hash_128_bit_pass(args['k'])
decrypted_secret = crypt(key, encrypted_secret, iv)
mac, data = decrypted_secret.split('--:--')
if data_type == 'image':
ipath = "C:\Users\kunal\Workspace\PycharmProjects\steganoisro\decrypted\secret.png"
print "the secret image is stored under: " + ipath
fh = open(ipath, "wb")
fh.write(data.decode('base64'))
fh.close()
return ipath
# Image.open(ipath).show()
else:
with open("C:\Users\kunal\Workspace\PycharmProjects\steganoisro\\templates\decrypted.json", "w") as text_file:
text_file.write('{"data" : ' + '"' + data + '"}')
return
# print 'The hidden message is: \n%s\n' % data
print 'HMAC hex is: \n%s\n' % mac.encode('hex')
check_hmac(mac, data)
def decrypt():
# extract and authenticate the hidden message in the image data
image = Image.open(args['image'])
matroschka = stg.extract_msg(image)
if matroschka is None:
print "No message was extracted"
return 1
# get the 8 byte iv and the encrypted secret from the image data
data_type, iv, encrypted_secret = matroschka.split('--:--')
# create a SHA-256 hash of the high-order 128 bit of the given password
key = hash_128_bit_pass(args['k'])
# decrypt the secret with the iv and the supplied password
decrypted_secret = crypt(key, encrypted_secret, iv)
# split hmac and message data
mac, data = decrypted_secret.split('--:--')
if data_type == 'image':
ipath = "resources/secret-image.png"
print "the secret image is stored under: " + ipath
fh = open(ipath, "wb")
fh.write(data.decode('base64'))
fh.close()
Image.open(ipath).show()
else:
print 'The hidden message is: \n%s\n' % data
print 'HMAC hex is: \n%s\n' % mac.encode('hex')
check_hmac(mac, data)
def decrypt():
# extract and authenticate the hidden message in the image data
image = Image.open(args['image'])
matroschka = stg.extract_msg(image)
# get the 8 byte iv and the encrypted secret from the image data
data_type, iv, encrypted_secret = matroschka.split('--:--')
# create a SHA-256 hash of the high-order 128 bit of the given password
key = hash_128_bit_pass(args['k'])
# decrypt the secret with the iv and the supplied password
decrypted_secret = crypt(key, encrypted_secret, iv)
# split hmac and message data
mac, data = decrypted_secret.split('--:--')
if data_type == 'image':
ipath = "resources/secret-image.png"
print "the secret image is stored under: " + ipath
fh = open(ipath, "wb")
fh.write(data.decode('base64'))
fh.close()
Image.open(ipath).show()
else:
print 'The hidden message is: \n%s\n' % data
print 'HMAC hex is: \n%s\n' % mac.encode('hex')
check_hmac(mac, data)
def get_msg(img):
i = Image.open('%s.ste' % img)
secret = stg.extract_msg(i)
mac = secret.split('--:--')[0]
print 'HMAC hex es: \n%s\n' % mac.encode('hex')
data = secret.split('--:--')[1]
print 'El mensaje oculto es: \n%s\n' % data
check_hmac(mac)
i.show()
def get_msg(img):
i = Image.open('%s.ste' % img)
secret = stg.extract_msg(i)
mac = secret.split('--:--')[0]
# print 'HMAC hex is: \n%s\n' % mac.encode('hex')
data = secret.split('--:--')[1]
print 'The hidden message is: \n%s\n' % data
check_hmac(mac)
i.show()
def get_msg(img):
"""
Extract the hidden message fro the given image.
Authenticate the hidden message by validating the
hmac hash sliced from the hidden message.
"""
i = Image.open('%s.ste' % img)
secret = stg.extract_msg(i)
mac = secret.split('--:--')[0]
print 'HMAC hex is: \n%s\n' % mac.encode('hex')
data = secret.split('--:--')[1]
print 'The hidden message is: \n%s\n' % data
check_hmac(mac)
i.show()
def get_msg(img):
"""
Extract the hidden message fro the given image.
Authenticate the hidden message by validating the
hmac hash sliced from the hidden message.
"""
i = Image.open('%s.ste' % img)
secret = stg.extract_msg(i)
mac = secret.split('--:--')[0]
print 'HMAC hex is: \n%s\n' % mac.encode('hex')
data = secret.split('--:--')[1]
print 'The hidden message is: \n%s\n' % data
check_hmac(mac)
i.show()
def decrypt():
image = Image.open(args['image'])
dark = stg.extract_msg(image)
data_type, iv, encrypted_secret = dark.split('--:--')
key = hash_128_bit_pass(args['k'])
decrypted_secret = crypt(key, encrypted_secret, iv)
mac, data = decrypted_secret.split('--:--')
if data_type == 'image':
ipath = "resources/secret-image.png"
print "la imagen secreta se almacena en: " + ipath
fh = open(ipath, "wb")
fh.write(data.decode('base64'))
fh.close()
Image.open(ipath).show()
else:
print 'El mensaje oculto es: \n%s\n' % data
print 'HMAC hex es: \n%s\n' % mac.encode('hex')
check_hmac(mac, data)