我發現了一小段代碼,能夠在AES(128位)CBC模式下對文件進行加密(和解密)。即使在解密時,它也是無懈可擊的,所以我相信OpenSSL將能夠(當然)解密我的文件,但似乎不可能。我得到的「錯誤讀取輸入文件」Python和OpenSSL:無法解密
import os, random, struct
from Crypto.Cipher import AES
def encrypt_file(key, in_filename, out_filename=None, chunksize=64*1024):
""" Encrypts a file using AES (CBC mode) with the
given key.
key:
16, 24 or 32 bytes long
in_filename:
Name of the input file
out_filename:
If None, '<in_filename>.enc' will be used.
chunksize:
Sets the size of the chunk which the function
uses to read and encrypt the file.
Chunksize must be divisible by 16.
"""
if not out_filename:
out_filename = in_filename + '.enc'
iv = ''.join(chr(random.randint(0, 0xFF)) for i in range(16))
encryptor = AES.new(key, AES.MODE_CBC, iv)
filesize = os.path.getsize(in_filename)
with open(in_filename, 'rb') as infile:
with open(out_filename, 'wb') as outfile:
outfile.write(struct.pack('<Q', filesize))
outfile.write(iv)
while True:
chunk = infile.read(chunksize)
if len(chunk) == 0:
break
elif len(chunk) % 16 != 0:
chunk += ' ' * (16 - len(chunk) % 16)
outfile.write(encryptor.encrypt(chunk))
的錯誤是一樣的曾經時間:「錯誤讀取輸入文件」。它怎麼可能?我使用的命令是這樣的:
openssl aes-128-cbc -d -in test_enc.txt -out test_dec.txt
爲什麼不工作?
呃好的謝謝!現在我明白了,基本格式是不同的!非常感謝 –