在Python中解密Chrome Linux BLOB加密的Cookie [英] Decrypt Chrome Linux BLOB encrypted cookies in Python

问题描述

我在Ubuntu中有Chrome 33+，我看到Cookie是以BLOB结构加密的：

CREATE TABLE cookies（creation_utc INTEGER NOT NULL UNIQUE PRIMARY KEY，host_key TEXT NOT NULL，name TEXT NOT NULL，value TEXT NOT NULL，path TEXT NOT NULL，expires_utc INTEGER NOT NULL，secure INTEGER NOT NULL，httponly INTEGER NOT NULL，last_access_utc INTEGER NOT NULL，has_expires INTEGER NOT NULL DEFAULT 1，persistent INTEGER NOT NULL DEFAULT 1，priority INTEGER NOT NULL DEFAULT 1，encrypted_value BLOB DEFAULT''）;


我想编写一个python脚本来解密cookie。我已经看到 Chrome 33 Beta的Cookie问题，但依赖于 CryptUnprotectData 这是一个Windows API。

首先我想知道如何加密Cookie。我已经阅读过3DES和AES，但是我没有找到一个可靠的来源来获取信息。

我将编写代码进行必要的加密和解密，如果我有关如何做的信息。

谢谢

解决方案

我已经发布了一个示例Python脚本此处，以解码OSX或Linux中的加密Cookie。

I have Chrome 33+ in Ubuntu and I see that the cookies are encrypted in a BLOB structure:

CREATE TABLE cookies (creation_utc INTEGER NOT NULL UNIQUE PRIMARY KEY,host_key TEXT NOT NULL,name TEXT NOT NULL,value TEXT NOT NULL,path TEXT NOT NULL,expires_utc INTEGER NOT NULL,secure INTEGER NOT NULL,httponly INTEGER NOT NULL,last_access_utc INTEGER NOT NULL, has_expires INTEGER NOT NULL DEFAULT 1, persistent INTEGER NOT NULL DEFAULT 1,priority INTEGER NOT NULL DEFAULT 1,encrypted_value BLOB DEFAULT '');

I would like to write a python script to decrypt the cookie. I've seen that there is Cookie issue with Chrome 33 Beta but relies in CryptUnprotectData that it's a Windows API.

First of all I would like to know how are the cookies encrypted. I've read 3DES and AES but I don't find a trusty source to get the info.

I will write the code to do the necessary encryption and decryption if I have info about how to do it.

Thank you

解决方案

I've posted an example Python script here for decoding the encrypted cookies in either OSX or Linux.

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