web渗透-CTF杂项练习题
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资源介绍:
压缩包中有各种CTF杂项练习题,每种题型各一个,部分题目文件已将答案(如分离好的图片)一并包含,请细心鉴别以防做题时引发误解
# BlindWaterMark
盲水印 by python
### 文件说明
* bwm.py 程序文件python2版本
* bwmforpy3.py 程序文件python***3.6***版本
* hui.png 无水印的原图
* wm.png 水印图
* hui_with_wm.png 有盲水印的图
* wm_from_hui.png 反解出来的水印图
### Demo
合成盲水印图
python bwm.py encode hui.png wm.png hui_with_wm.png
![image](https://github.com/chishaxie/BlindWaterMark/raw/master/hui.png)
+
![image](https://github.com/chishaxie/BlindWaterMark/raw/master/wm.png)
->
![image](https://github.com/chishaxie/BlindWaterMark/raw/master/hui_with_wm.png)
提取图中的盲水印 (需要原图)
python bwm.py decode hui.png hui_with_wm.png wm_from_hui.png
![image](https://github.com/chishaxie/BlindWaterMark/raw/master/hui.png)
+
![image](https://github.com/chishaxie/BlindWaterMark/raw/master/hui_with_wm.png)
->
![image](https://github.com/chishaxie/BlindWaterMark/raw/master/wm_from_hui.png)
### install dependency
```bash
pip install -r requirements.txt
```
### Usage
注意程序python2和python3版本的加解密结果会有所不同,主要原因是python2和python3 random的算法不同,如果要让python3兼容python2的random算法请加 --oldseed参数。
Note that the encode and decode results of the python2 and python3 versions of the program will be different. The main reason is that the python2 and python3 random algorithms are different. If you want to make python3 compatible with the random algorithm of python2, please add the --oldseed parameter.
Usage: python bwm.py [arg...] [opts...]
cmds:
encode
image + watermark -> image(encoded)
decode
image + image(encoded) -> watermark
opts:
--debug, Show debug
--seed , Manual setting random seed (default is 20160930)
--oldseed For python3 to use python2 random algorithm.
--alpha , Manual setting alpha (default is 3.0)