windows 在 Python 中使用 DPAPI？
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Using DPAPI with Python?
提问by Wayne Koorts
Is there a way to use the DPAPI (Data Protection Application Programming Interface) on Windows XP with Python?
有没有办法在带有 Python 的 Windows XP 上使用 DPAPI（数据保护应用程序编程接口）？
I would prefer to use an existing module if there is one that can do it. Unfortunately I haven't been able to find a way with Google or Stack Overflow.
如果有一个可以做到的模块，我更愿意使用现有模块。不幸的是，我无法通过 Google 或 Stack Overflow 找到方法。
EDIT:I've taken the example code pointed to by "dF" and tweaked it into a standalone library which can be simply used at a high level to crypt and decrypt using DPAPI in user mode. Simply call dpapi.cryptData(text_to_encrypt) which returns an encrypted string, or the reverse decryptData(encrypted_data_string), which returns the plain text. Here's the library:
编辑：我已经采用了“dF”指向的示例代码并将其调整为一个独立的库，该库可以简单地在高级别的使用，以在用户模式下使用 DPAPI 进行加密和解密。只需调用 dpapi.cryptData(text_to_encrypt) 返回加密字符串，或反向解密数据（encrypted_data_string），返回纯文本。这是图书馆：
# DPAPI access library
# This file uses code originally created by Crusher Joe:
# http://article.gmane.org/gmane.comp.python.ctypes/420
#
from ctypes import *
from ctypes.wintypes import DWORD
LocalFree = windll.kernel32.LocalFree
memcpy = cdll.msvcrt.memcpy
CryptProtectData = windll.crypt32.CryptProtectData
CryptUnprotectData = windll.crypt32.CryptUnprotectData
CRYPTPROTECT_UI_FORBIDDEN = 0x01
extraEntropy = "cl;ad13 ##代码##al;323kjd #(adl;k$#ajsd"
class DATA_BLOB(Structure):
_fields_ = [("cbData", DWORD), ("pbData", POINTER(c_char))]
def getData(blobOut):
cbData = int(blobOut.cbData)
pbData = blobOut.pbData
buffer = c_buffer(cbData)
memcpy(buffer, pbData, cbData)
LocalFree(pbData);
return buffer.raw
def Win32CryptProtectData(plainText, entropy):
bufferIn = c_buffer(plainText, len(plainText))
blobIn = DATA_BLOB(len(plainText), bufferIn)
bufferEntropy = c_buffer(entropy, len(entropy))
blobEntropy = DATA_BLOB(len(entropy), bufferEntropy)
blobOut = DATA_BLOB()
if CryptProtectData(byref(blobIn), u"python_data", byref(blobEntropy),
None, None, CRYPTPROTECT_UI_FORBIDDEN, byref(blobOut)):
return getData(blobOut)
else:
return ""
def Win32CryptUnprotectData(cipherText, entropy):
bufferIn = c_buffer(cipherText, len(cipherText))
blobIn = DATA_BLOB(len(cipherText), bufferIn)
bufferEntropy = c_buffer(entropy, len(entropy))
blobEntropy = DATA_BLOB(len(entropy), bufferEntropy)
blobOut = DATA_BLOB()
if CryptUnprotectData(byref(blobIn), None, byref(blobEntropy), None, None,
CRYPTPROTECT_UI_FORBIDDEN, byref(blobOut)):
return getData(blobOut)
else:
return ""
def cryptData(text):
return Win32CryptProtectData(text, extraEntropy)
def decryptData(cipher_text):
return Win32CryptUnprotectData(cipher_text, extraEntropy)
采纳答案by dF.
I have been using CryptProtectDataand CryptUnprotectDatathrough ctypes, with the code from
我一直在使用CryptProtectData和CryptUnprotectData通过 ctypes，代码来自
http://article.gmane.org/gmane.comp.python.ctypes/420
http://article.gmane.org/gmane.comp.python.ctypes/420
and it has been working well.
它一直运行良好。
回答by Jason R. Coombs
Also, pywin32 implements CryptProtectData and CryptUnprotectData in the win32crypt module.
此外，pywin32 在 win32crypt 模块中实现了 CryptProtectData 和 CryptUnprotectData。
回答by Alan
The easiest way would be to use Iron Python.
最简单的方法是使用Iron Python。
