Chapter Summary

■Steganography is the method of hiding information by embedding the message into a seemingly harmless message.

■Cryptography is the technique of encoding the contents of a message in such a way that its contents are hidden from outsiders. Here, existence of the message is clear but the meaning is obscured.

■Watermarking is used for authentication and copyright protection.

■Data Stash is a security tool that allows the user to hide sensitive data files within other files.

■Stegomagic hides any kind of file or message in text, WAV, 24-bit BMP, and 256-color BMP files.

■Steganalysis is a technique used to detect and extract hidden data.

■Steganography is used for secure and secret communication.