Carrier (cover object)
Definition
The original file, image, audio recording, or video clip used to conceal the hidden message. The modified version containing the hidden data is called the stego object.
Related terms
- Covert channel
- Any pathway used to transfer information outside of intended or visible communication channels. In digital forensics, metadata fields, file-header padding, and unused...
- DCT coefficient manipulation
- A transform-domain technique that embeds data in the discrete cosine transform coefficients of a JPEG block, operating within the compressed representation rather...
- LSB substitution
- A spatial-domain technique that replaces the least-significant bit of each pixel's colour channel with one bit of the payload. Cheap to implement,...
- Payload
- The secret message or data being hidden. Payload capacity is the amount of data that can be embedded without introducing statistically detectable...
- Steganography
- Concealing one file inside another in a way that hides the existence of the hidden file. LSB image manipulation, JPEG DCT coefficient...
Explained in
- Steganography Methods in Images, Audio, and VideoThe original file, image, audio recording, or video clip used to conceal the hidden message. The modified version containing the hidden data is called the steg...