Chrome 43+浏览器 Cookies encrypted_value解密脚本

python 3.3.5

 # -*- coding: utf-8 -*-

 # Used information from:
 # http://*.com/questions/463832/using-dpapi-with-python
 # http://www.linkedin.com/groups/Google-Chrome-encrypt-Stored-Cookies-36874.S.5826955428000456708

 from ctypes import *
 from ctypes.wintypes import DWORD
 import sqlite3;

 cookieFile=r'C:\Users\username\AppData\Local\Google\Chrome\User Data\Default\Cookies';
 hostKey="court.gov.cn";

 LocalFree = windll.kernel32.LocalFree;
 memcpy = cdll.msvcrt.memcpy;
 CryptProtectData = windll.crypt32.CryptProtectData;
 CryptUnprotectData = windll.crypt32.CryptUnprotectData;
 CRYPTPROTECT_UI_FORBIDDEN = 0x01;

 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 encrypt(plainText):
     bufferIn = c_buffer(plainText, len(plainText));
     blobIn = DATA_BLOB(len(plainText), bufferIn);
     blobOut = DATA_BLOB();

     if CryptProtectData(byref(blobIn), u"python_data", None,
                        None, None, CRYPTPROTECT_UI_FORBIDDEN, byref(blobOut)):
         return getData(blobOut);
     else:
         raise Exception("Failed to encrypt data");

 def decrypt(cipherText):
     bufferIn = c_buffer(cipherText, len(cipherText));
     blobIn = DATA_BLOB(len(cipherText), bufferIn);
     blobOut = DATA_BLOB();

     if CryptUnprotectData(byref(blobIn), None, None, None, None,
                               CRYPTPROTECT_UI_FORBIDDEN, byref(blobOut)):
         return getData(blobOut);
     else:
         raise Exception("Failed to decrypt data");

 conn = sqlite3.connect(cookieFile);
 c = conn.cursor();
 sql = "select host_key, name, value, path,encrypted_value from cookies where host_key like \'%" + hostKey+"%\'";
 c.execute(sql);

 cookies = c.fetchmany(10);
 c.close();

 for row in cookies:
     dc = decrypt(row[4]);
     print( \
 """
 host_key: {0}
 name: {1}
 path: {2}
 value: {3}
 encrpyted_value: {4}
 """.format(row[0], row[1], row[2], row[3], dc));