信息安全基础 ---- 密码学 的 题目 ---（不要问我为什么这么无聊做这些，这，是一个大作业。）

很多题目，破解了一半做不下去了。。。来问问大家。

1、有一个题目 我做了一半，破解得到了一个 txt 文件，里面的内容 如下：

                      +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
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不知道这是啥。。

2、网络抓包流量分析

9696 12.826533 172.16.80.11 10.0.2.15 HTTP 1095 HTTP/1.1 200 OK (text/html)
对于协议，其实也不是很懂，大概查了一下 这是 Http 协议的响应信息。Http/1.1 表示当前协议为 Http。6.0 是协议的版本。200 表示成功。

然后我就看详细的信息：

然后我就不知道怎么做了。。。。问我同学，只是告诉了我一个答案，他说通过上面的分析，得到 数字串
我一脸懵逼。

3、给的材料是一个 rar 文件，通过解压之后我得到：
}����
看 文件的 结构应该是 android 的项目吧，但是到导入 eclipse 好像并不成功，左侧连目录都没显示。。

4、还是一个 rar 文件，解压之后得到：
}����
双击 exe 一闪而过，或者把这个 exe 后缀改成 rar 解压 也不成功。
然后问我同学，他说，他们右键这个 exe 文件，，，有解压的选项。。解压出了一个 flag.exe 文件，双击 flag.exe 文件，就得到了 flag.txt 文件，就是答案了。。。。
但是我 试了好几台电脑 这个 exe 文件都只有 压缩的选项。。我。。。。。。

5、最后一个吧：
对一系列 jpg 文件，rar 文件进行解密之后，最终我的到了一个 txt 文件，里面的内容，跟第一个问题有点像：
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完全不知道这是什么鬼，，，，，，，我真的对于这种密码学的 题 一点都不在行。。。（后悔选了这门课，没兴趣。）