def embed(imgFile, payload, password):
# Process source image
img = Image.open(imgFile)
(width, height) = img.size
conv = img.convert("RGBA").getdata()
print "[*] Input image size: %dx%d pixels." % (width, height)
max_size = width * height * 3.0 / 8 / 1024 # max payload size
print "[*] Usable payload size: %.2f KB." % (max_size)
f = open(payload, "rb")
data = f.read()
f.close()
print "[+] Payload size: %.3f KB " % (len(data) / 1024.0)
# Encypt
cipher = AESCipher(password)
data_enc = cipher.encrypt(data)
# Process data from payload file
v = decompose(data_enc)
# Add until multiple of 3
while (len(v) % 3):
v.append(0)
payload_size = len(v) / 8 / 1024.0
print "[+] Encrypted payload size: %.3f KB " % (payload_size)
if (payload_size > max_size - 4):
print "[-] Cannot embed. File too large"
sys.exit()
# Create output image
steg_img = Image.new('RGBA', (width, height))
data_img = steg_img.getdata()
idx = 0
for h in range(height):
for w in range(width):
(r, g, b, a) = conv.getpixel((w, h))
if idx < len(v):
r = set_bit(r, 0, v[idx])
g = set_bit(g, 0, v[idx + 1])
b = set_bit(b, 0, v[idx + 2])
data_img.putpixel((w, h), (r, g, b, a))
idx = idx + 3
steg_img.save(imgFile + "-stego.png", "PNG")
print "[+] %s embedded successfully!" % payload
def embed(imgFile, payload, password):
# Process source image
img = Image.open(imgFile)
(width, height) = img.size
conv = img.convert("RGBA").getdata()
print "[*] Input image size: %dx%d pixels." % (width, height)
max_size = width*height*3.0/8/1024 # max payload size
print "[*] Usable payload size: %.2f KB." % (max_size)
f = open(payload, "rb")
data = f.read()
f.close()
print "[+] Payload size: %.3f KB " % (len(data)/1024.0)
# Encypt
cipher = AESCipher(password)
data_enc = cipher.encrypt(data)
# Process data from payload file
v = decompose(data_enc)
# Add until multiple of 3
while(len(v)%3):
v.append(0)
payload_size = len(v)/8/1024.0
print "[+] Encrypted payload size: %.3f KB " % (payload_size)
if (payload_size > max_size - 4):
print "[-] Cannot embed. File too large"
sys.exit()
# Create output image
steg_img = Image.new('RGBA',(width, height))
data_img = steg_img.getdata()
idx = 0
for h in range(height):
for w in range(width):
(r, g, b, a) = conv.getpixel((w, h))
if idx < len(v):
r = set_bit(r, 0, v[idx])
g = set_bit(g, 0, v[idx+1])
b = set_bit(b, 0, v[idx+2])
data_img.putpixel((w,h), (r, g, b, a))
idx = idx + 3
steg_img.save(imgFile + "-stego.png", "PNG")
print "[+] %s embedded successfully!" % payload
def hide_text(sourceImg, secrettext, password):
# Process source image
img = Image.open(sourceImg)
(width, height) = img.size
conv_image = img.convert("RGBA").getdata()
max_size = width * height * 3.0 / 8 / 1024
f = open(secrettext, "rb")
data = f.read()
f.close()
cipher = AESCipher(password)
data_enc = cipher.encrypt(data)
# Process data from secrettext
bitsoffile = binary_to_bits(data_enc)
# Add until multiple of 3
while (len(bitsoffile) % 3):
bitsoffile.append(0)
secrettext_size = len(bitsoffile) / 8 / 1024.0
if (secrettext_size > max_size - 4):
print "\n>>> Failed to hide the text, file is too large.\n"
sys.exit()
# Create output image
steg_img = Image.new('RGBA', (width, height))
data_img = steg_img.getdata()
v = 0
for h in range(height):
for w in range(width):
(r, g, b, a) = conv_image.getpixel((w, h))
if v < len(bitsoffile):
r = set_bit(r, 0, bitsoffile[v])
g = set_bit(g, 0, bitsoffile[v + 1])
b = set_bit(b, 0, bitsoffile[v + 2])
data_img.putpixel((w, h), (r, g, b, a))
v = v + 3
steg_img.save("stego.png", "PNG")
print "\n>> %s hidden successfully in the source file!\n" % secrettext
def _encrypt_params(self, raw_params={}):
aes = AESCipher(self.config['crypt']['aeskey'])
s = []
for k in raw_params:
s.append(k + '=' + str(raw_params[k]))
return aes.encrypt('&'.join(s))
def encrypt(raw_str, platform=1):
aes = AESCipher(platform)
enc = urllib.quote(aes.encrypt(raw_str))
return enc