pyaescrypt crypt词典，将密码文本保存到文件，然后读取文件和解密

Question

因此，我正在尝试加密字典并将其保存为Cypher文本，然后打开并解密文件，以便我的程序可以使用密码。
我不想保存解密的文件，只能存储在变量中。

我的当前.py如下：

import io
import json
import pyAesCrypt


password = 'some_password'
bufferSize = 64 * 1024


def enc():
    loaded_settings = {'pass1': 'xxx',
                       'pass2': 'ccc',
                       'key': 'ddd',
                       'secret': 'sss'}

    # binary data to be encoded
    user_encode_data = json.dumps(loaded_settings).encode('utf-8')

    # input plaintext binary stream
    fIn = io.BytesIO(user_encode_data)

    # initialize ciphertext binary stream
    fCiph = io.BytesIO()

    # encrypt stream
    pyAesCrypt.encryptStream(fIn, fCiph, password, bufferSize)

    # print encrypted data
    print("This is the ciphertext:\n" + str(fCiph.getvalue()))
    with open("Output.txt", "w") as text_file:
        text_file.write(str(fCiph.getvalue()))


def dec():
    with open("Output.txt", "r") as text_file:
        cipher_text = text_file
        fCiph = io.BytesIO(cipher_text.read().encode())
    # get ciphertext length
    ctlen = len(fCiph.getvalue())

    # go back to the start of the ciphertext stream
    fCiph.seek(0)

    # initialize decrypted binary stream
    fDec = io.BytesIO()

    # decrypt stream
    pyAesCrypt.decryptStream(fCiph, fDec, password, bufferSize, ctlen)

    # print decrypted data
    print("Decrypted data:\n" + str(fDec.getvalue()))

    # decrypted data back as dict
    output_dict = json.loads(fDec.getvalue())

    print(output_dict['pass1'])


enc()
dec()

我正在收到错误valueError：文件已损坏或不是AES Crypt（或Pyaescrypt）文件。
我打开Cypher文本的方式有什么问题吗？

Answer 1

数据必须在二进制文件中存储和读取，否则将被损坏，即

• 在eng（）的末尾，必须是：

with open("Output.txt", "wb") as text_file: # Fix 1a: binary, i.e. replace w with wb
    text_file.write(fCiph.getvalue())       # Fix 2a: binary, i.e. remove str()

• 相应地，在dec（）：

with open("Output.txt", "rb") as text_file: # Fix 1:  binary, ie. replace r with rb
    cipher_text = text_file
    fCiph = io.BytesIO(cipher_text.read())  # Fix 2b: binary, i.e. remove encode()

通过这些更改，解密有效。