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我正在尝试以安全的方式读取和写入用户名和密码。在我当前的实现中，我遵循AES-CBC加密/解密，但将加密的用户名和随机密钥存储在配置文件中是一个安全问题。我找到了一个选项，即密钥库是存储密码的更好方法。我检查了类似的问题，但我不清楚信息。我发现的另一个选项是密钥环，它在 Windows 中运行良好，但在 Linux 上，我收到以下错误。我已经检查了可能的解决方案，但找不到。

python keyring-test.py
Traceback (most recent call last):
  File "keyring-test.py", line 3, in <module>
    keyring.set_password(service_name="demo-service",username="admin",password="test")
  File "/usr/lib/python2.7/site-packages/keyring/core.py", line 64, in set_password
    _keyring_backend.set_password(service_name, username, password)
  File "/usr/lib/python2.7/site-packages/keyring/backends/fail.py", line 23, in get_password
    raise RuntimeError(msg)
RuntimeError: No recommended backend was available. Install the keyrings.alt package if you want to use the non-recommended backends. See README.rst for details.

有人可以建议我使用 python 提供更好的解决方案或模块来安全地存储密码吗？

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1 回答 1

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我的实现是这样的：我创建了一个随机字符串并将其存储到一个 txt 文件中，然后在一个密钥下加密它的字节文件！我使用了我制作的两个函数，它们def encrypt_file将文件加密其字节并返回加密文件并def dencrypt_file执行相反的操作。

from Crypto.Cipher import AES
import hashlib
import os
import pathlib

def encrypt_file(key,filein,fileout=None,IV=None):
    modes = [1,2,8,3,6,9,11,12,10,5]
    if os.path.isfile(filein):
        if IV == None:
            IV = 16 * b'\x00'
        else:
            IV = IV.encode("utf-8")
        if len(IV)==16:
            if fileout == None:
                fileout_path = pathlib.Path(filein).parent
                fileout_name = pathlib.Path(filein).name
            else:
                fileout_path = pathlib.Path(fileout).parent
                fileout_name = pathlib.Path(fileout).name
                print (fileout_path, fileout_name )
                if os.path.exists(fileout_path) == False:
                    print("Path Does Not Exists")
                    return

            encryptor = AES.new(hashlib.sha256(key.encode("utf-8")).digest(), 3, IV=IV)
            with open(filein,"rb") as f :
                f = f.read()
                encr_bytes = encryptor.encrypt(f)
                file = open(str(fileout_path)+"\\"+str(fileout_name)+".enc","wb")
                file.write(encr_bytes)
                file.close()
                del encryptor
        else:
            print ("IV must 16 bytes long")
            return
    else:
        print("No file path")
        return




def dencrypt_file(key,filein,fileout=None,IV=None,TXT = False):
    if os.path.isfile(filein):
        if IV == None:
            IV = 16 * b'\x00'
        else:
            IV = IV.encode("utf-8")
        if len(IV)==16:
            if fileout == None:
                fileout_path = pathlib.Path(filein).parent
                fileout_name = pathlib.Path(filein).name
                list_name = fileout_name.split(".")
            else:
                fileout_path = pathlib.Path(fileout).parent
                fileout_name = pathlib.Path(fileout).name
                list_name =  fileout_name.split(".")
                if os.path.exists(fileout_path) == False:
                    print("Path Does Not Exists")
                    return
            file_name = list_name[0] + "." + list_name[1]
            if os.path.isfile(str(fileout_path)+"\\"+str(file_name)):
                file_name = list_name[0] + "new" +"." + list_name[1]
                print(file_name, "OK")
            else:
                file_name = file_name
            final_path = str(fileout_path) + "\\" +  file_name
            encryptor = AES.new(hashlib.sha256(key.encode("utf-8")).digest(), 3, IV=IV)
            with open(filein,"rb") as f :
                if TXT == False:
                    file = open(final_path,"wb")
                    file.write(encryptor.decrypt(f.read()))
                    file.close()
                else:
                    return encryptor.decrypt(f.read()).decode("utf-8")
        else:
            print ("IV must 16 bytes long")
            return
    else:
        print("No file path")
return

参数是

  • key : 你的密钥
  • filein ：要加密的文件
  • fileout : 输出文件
  • IV : 初始化向量
于 2018-10-23T10:39:14.957 回答