一个基于LSB（最低有效位）技术的BMP图片隐写工具，可以将任意文件写入一个或多个BMP图片文件中。
A tool that can steganographically embed one file into one or multiple BMP images using the LSB (Least Significant Bit). Full English documentation is here
直接在Releases下载由GitHub编译的二进制文件即可。此项目目前只支持Windows系统。
打开软件选择工作目录，工作目录中应该包含待隐写的图片，你可以任意选择文件夹中的一张或几张图片来被隐写。
隐写后的图片会在保存在./steg文件夹中
提取文件时需要把工作目录切换到包含隐写后的图片的文件夹，如成功提取将会在当前目录生成extracted.bin
| Carrier1 | Carrier2 | Data |
|---|---|---|
 |
 |
 |
+================+
| Selected |
+================+
index:0, name: 1.bmp
index:1, name: 2.bmp
+================+
| Selecting |
+================+
You have selected all the files!
Which file do you want to steg?
<Your Working Folder>\award.jpg
You have selected 2 files.
steg file size is 157248
A subdirectory or file steg already exists.
part file size is 78624
fullPartFileSize is 78656
LSB index: 0 hiding completed.
part file size is 78624
fullPartFileSize is 78656
LSB index: 1 hiding completed.
Success!
Working Folder:
<Your Working Folder>
<1>File Info <2>Steg <3>Extract <4>Change Working Dir <Ctrl-C>Exit
| Result1 | Result2 |
|---|---|
 |
 |
+================+
| Selecting |
+================+
Note: You can select any file with the same CRC32 value.
Index: 0, CRC32: 0x2F2874B5
Index: 1, CRC32: 0x2F2874B5
<Enter>Select <Ctrl-C>Exit
Now I will get 78656 bytes from 1.bmp
Now I will get 78656 bytes from 2.bmp
CRC32 Check Passed.
Success!
Working Folder:
<Your Working Folder>
<1>File Info <2>Steg <3>Extract <4>Change Working Dir <Ctrl-C>Exit
| extracted.bin |
|---|
+================+
|File/Folder Info|
+================+
1.bmp
2.bmp
<Enter>View file info <Esc>Exit
You selected 0, name: 1.bmp
BMP Header Information:
Width: 1250 pixels
Height: 822 pixels
Bit Count: 24
Image Size: 3084198 bytes
Now I will get 32 bytes from 1.bmp
======Steg Header Information======
Software Version: 1.0
Encrypt flag (Not enabled): 0
ALL BMP number of this steged file: 2
The file index of this series: 1
The full steged file is: 157248 Bytes
The steged data in this file is: 78624 Bytes
The CRC32 checksum of steged file is: 0x2F2874B5
Success!
Working Folder:
<Your Working Folder>
<1>File Info <2>Steg <3>Extract <4>Change Working Dir <Ctrl-C>Exit
课设项目，基本功能已测试过无明显bug。软件工作路径不能为中文或其他非ASCII文本。
有时候切换工作目录的时候会有可能失败，你可以通过重开软件来解决。
喜欢的话可以点一个star！谢谢你的鼓励（给心心
感谢https://github.com/DimitarPetrov/stegify/blob/master/README.md 提供了文档格式参考
感谢https://github.com/marc-q/libbmp 提供了BMP读写库
感谢https://github.com/cristianadam/HelloWorld 提供了自动编译Action
感谢https://weibo.com/u/3735856601 与 https://twitter.com/DSmile9 提供了两张Carrier图片
本项目使用了AGPL-3.0 license
Copyright ©gfdfdxc 2023
A tool that can steganographically embed one file into one or multiple BMP images using the LSB (Least Significant Bit).
Just download the binaries compiled by GitHub directly from Releases. This project currently only supports Windows.
Open the software and select the working directory, which should contain the images to be steganographed, you can choose any one or several images in the folder to be steganographed.
The steganized images will be saved in the ./steg folder.
When extracting the file, you need to switch the working directory to the folder that contains the steganographic image, if the extraction is successful, it will generate extracted.bin in the current directory.
Please goto Demo
This is a course project, the basic function has been tested without obvious bugs, the working path of the software can not be Chinese or other non-ASCII characters.
Sometimes switching the working directory may fail, you can solve the problem by reopening the software.
If you like it, you can give me a star, thank you for your encouragement!
Thanks to https://github.com/DimitarPetrov/stegify/blob/master/README.md for providing the document format reference.
Thanks to https://github.com/marc-q/libbmp for providing the BMP library.
Thanks to https://github.com/cristianadam/HelloWorld for providing auto compile action
Thanks to https://weibo.com/u/3735856601 and https://twitter.com/DSmile9 for the two Carrier images.
This project uses the AGPL-3.0 license.
Copyright ©gfdfdxc 2023