LSB Modification Example
Introduction to Steganography
If C1 byte = 00100101 and M1 bit = 1 then resulting C2 byte is unchanged.
(Likewise if both bits are ‘0’ then the C2 byte is unchanged)
If C1 byte = 00100101 and M1 bit = 0 then resulting C2 byte is 00100100.
The difference is very subtle, and is almost undetectable in a MP3 or GIF File.
JPG is not as good for steganography, but some programs do use them.
Third Example (LSB Modification)