Python中的加密/解密;解密不起作用
我正在尝试使用python加密解密一些加密的.jpg图像Python中的加密/解密;解密不起作用,python,encryption,Python,Encryption,我正在尝试使用python加密解密一些加密的.jpg图像 def decrypt(input_filename, output_filename, password, cipher): ciphers = ['AES_ECB'] key = generate_key(password) #Loading Pixel Data im = Image.open(input_filename) pix = im.load()
def decrypt(input_filename, output_filename, password, cipher):
ciphers = ['AES_ECB']
key = generate_key(password)
#Loading Pixel Data
im = Image.open(input_filename)
pix = im.load()
rgb_im = im.convert('RGB')
size = im.size
image = Image.new('RGB', im.size)
pix1=image.load()
print "Filesize: " + str(size)
for x in range(256):
for y in range (256):
pixel = rgb_im.getpixel((x, y))
print pixel#DEBUG
if cipher == ciphers[0]:
print x,y
pix1[x,y] = decryptPixel(pixel, key)
image.save(output_filename)
但我有一个错误:
17 if cipher == ciphers[0]:
18 print x,y
---> 19 pix1[x,y] = decryptPixel(pixel, key)
20 image.save(output_filename)
OverflowError: Python int too large to convert to C long
你能帮我解决这个问题吗
def decryptPixelComponent(component, key):
decryptor = AES.new(key, AES.MODE_ECB)
component_hash = hashlib.sha256(str(component)).digest()
component = decryptor.decrypt(component_hash).encode('hex')
#print int(component, 16)
return int(component, 16)
def decryptPixel(pixel, key):
(red, green, blue) = pixel
return (decryptPixelComponent(red, key),
decryptPixelComponent(green, key),
decryptPixelComponent(blue, key))
“decryptPixel”的结果是tuple,pix1也是tuple。然而,当我尝试更新pix1时,我得到了这个溢出错误 查看“decryptPixelComponent”函数,似乎您正在解密像素的散列值(“分量_散列”)。我认为您应该尝试在没有散列(“组件”)的情况下解密
请提供诊断问题所需的全部代码。如何定义
解密像素
?你是如何加密它的?这是导致问题PIX1[x,y]=解密像素(像素,密钥)的那一行
def decryptPixelComponent(component, key):
decryptor = AES.new(key, AES.MODE_ECB)
component = decryptor.decrypt(component).encode('hex')
#print int(component, 16)
return int(component, 16)