CTF隐写术实战：从爱因斯坦题目解析多层加密破解

1. 项目背景解析

"BUUCTF 爱因斯坦1"是一道典型的CTF（Capture The Flag）竞赛题目，这类题目通常考察参赛者的信息安全技能和创造性思维。作为CTF老手，我第一眼看到这个题目名称时，就意识到它可能融合了密码学和隐写术两大方向。

CTF题目命名往往暗藏玄机，"爱因斯坦"这个关键词提示我们可能需要关注以下几个方面：

• 物理学相关概念（如相对论、质能方程）
• 爱因斯坦的著名公式E=mc²
• 与时间或空间相关的加密方式

2. 初步文件分析

拿到题目文件后，我首先用file命令查看文件类型：

file einstein.jpg

结果显示这是一个标准的JPEG图像文件。但经验告诉我，CTF题目的表面文件类型往往只是障眼法。接着使用binwalk工具进行深度扫描：

binwalk einstein.jpg

果然发现了异常 - 文件尾部附加了额外的数据。这提示可能存在以下情况：

1. 文件拼接（图片+压缩包）
2. 隐写信息（LSB、EXIF等）
3. 加密数据隐藏

3. 隐写术破解实战

3.1 文件分离技术

使用foremost工具分离文件：

foremost -i einstein.jpg -o output

在output目录中发现了一个隐藏的zip压缩包。但尝试解压时发现需要密码，这验证了我们的第一个猜想。

3.2 密码破解策略

面对加密的zip文件，我尝试了以下几种方法：

1. 暴力破解：

fcrackzip -u -D -p rockyou.txt secret.zip

2. 查看图片元数据：

exiftool einstein.jpg

在元数据中发现可疑的注释字段："password=specialrelativity"

3. 使用Stegsolve分析： 对图片进行LSB分析，在红色通道0位发现异常像素分布

最终通过图片注释中发现的密码成功解压，得到了flag.txt文件。

4. 密码学维度解析

这道题的精妙之处在于多层加密设计：

在flag.txt中得到的字符串看似乱码，实际上是经过多重编码的结果。通过以下步骤最终获取flag：

import base64 encoded = "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