这并不能直接回答你的问题，但它可能会给你一些问题的线索。我使用两个函数将内容加密到文件中，而不是直接加密文件。一个用于加密（在我的情况下为用户名和密码）到一个文件，然后另一个用于解密该数据以根据需要使用。
注意填充的需要
在文件中创建加密内容：
from Crypto.Cipher import AES
import base64
import os
import argparse
parser = argparse.ArgumentParser(description='Arguments used to generate new credentials file, Use: -u for username, -p for password')
parser.add_argument('-u', help='Specify username', required=True)
parser.add_argument('-p', help='Specify password', required=True)
parser.add_argument('-b', help='Specify debug', required=False, action='store_true')
args = vars(parser.parse_args())
def encrypt(username, password):
#Encrypt Credentials To '.creds' file, including 'secret' for username and password
dir_path = os.path.dirname(os.path.realpath(__file__))
# the block size for the cipher object; must be 16 per FIPS-197
BLOCK_SIZE = 16
# the character used for padding--with a block cipher such as AES, the value
# you encrypt must be a multiple of BLOCK_SIZE in length. This character is
# used to ensure that your value is always a multiple of BLOCK_SIZE
PADDING = '{'
# one-liner to sufficiently pad the text to be encrypted
pad = lambda s: s + (BLOCK_SIZE - len(s) % BLOCK_SIZE) * PADDING
# generate a random secret key
user_secret = os.urandom(BLOCK_SIZE)
pass_secret = os.urandom(BLOCK_SIZE)
# one-liners to encrypt/encode and decrypt/decode a string
# encrypt with AES, encode with base64
EncodeAES = lambda c, s: base64.b64encode(c.encrypt(pad(s)))
# create a cipher object using the random secret
user_cipher = AES.new(user_secret)
pass_cipher = AES.new(pass_secret)
# encode a string
user_encoded = EncodeAES(user_cipher, username)
pass_encoded = EncodeAES(pass_cipher, password)
try:
with open('.creds', 'w') as filename:
filename.write(user_encoded + '\n')
filename.write(user_secret + '\n')
filename.write(pass_encoded + '\n')
filename.write(pass_secret + '\n')
filename.close()
print '\nFile Written To: ', dir_path + '/.creds'
except Exception, e:
print e
if args['b']:
print((user_encoded, user_secret), (pass_encoded, pass_secret))
username = args['u']
password = args['p']
encrypt(username, password)
解密数据
def decrypt(dir_path, filename):
#Read '.creds' file and return unencrypted credentials (user_decoded, pass_decoded)
lines = [line.rstrip('\n') for line in open(dir_path + filename)]
user_encoded = lines[0]
user_secret = lines[1]
pass_encoded = lines[2]
pass_secret = lines[3]
# the character used for padding--with a block cipher such as AES, the value
# you encrypt must be a multiple of BLOCK_SIZE in length. This character is
# used to ensure that your value is always a multiple of BLOCK_SIZE
PADDING = '{'
DecodeAES = lambda c, e: c.decrypt(base64.b64decode(e)).rstrip(PADDING)
# create a cipher object using the random secret
user_cipher = AES.new(user_secret)
pass_cipher = AES.new(pass_secret)
# decode the encoded string
user_decoded = DecodeAES(user_cipher, user_encoded)
pass_decoded = DecodeAES(pass_cipher, pass_encoded)
return (user_decoded, pass_decoded)