隐写工具，F5 加解密工具

To embed a file called msg.txt in a picture called pic.jpg run the following: java -jar f5.jar e -e msg.txt pic.jpg out.jpg To extract a message from a picture call you call this: java -jar f5.jar x -e out.txt pic.jpg You can also give a password to protect the data or specify the image quality for the JPEG, e.g.: java -jar f5.jar e -e msg.txt -p mypasswd -q 70 in.jpg out.jpg java -jar f5.jar x -p mypasswd -e out.txt in.jpg