Which algorithm is used in steganography?
The steganographic algorithm uses one public key and one private key to generate a binary sequence of pseudorandom numbers that indicate where the elements of the binary sequence of a secret message will be inserted. The insertion takes eventually place at the first seven AC coefficients in the transformed DCT domain.
Which technique is video steganography method?
Steganography is the technique of hiding secret data. The secret information like text, image, audio and video. This secret information will be hide in the text, image, audio and video files. Hide secret information in video file is called video steganography.
What are the techniques of steganography?
Steganographic Technique
- Digital Watermarking.
- Voice over Internet Protocol.
- Detection Algorithm.
- Detection Method.
- Watermarking Technique.
- Trojans.
What is video steganography?
Video steganography is a branch of data hiding, which is a technique that embeds message into cover contents and is used in many fields such as medical systems, law enforcement, copyright protection and access control, etc.
What is audio steganography?
Audio steganography is about hiding the secret message into the audio. It is a technique uses to secure the transmission of secret information or hide their existence. It also may provide confidentiality to secret message if the message is encrypted.
What is network steganography?
Network steganography is a hidden communication technique, which utilizes the legitimate traffic as the vehicle to transfer the secret information covertly over the untrusted network. BitTorrent (BT) is one of the most prevalent P2P services for transmitting video files over wireless networks.
How many types of steganography are there?
Steganography Techniques Depending on the nature of the cover object(actual object in which secret data is embedded), steganography can be divided into five types: Text Steganography. Image Steganography. Video Steganography.
How does LSB steganography work?
LSB-Steganography is a steganography technique in which we hide messages inside an image by replacing Least significant bit of image with the bits of message to be hidden.
What is steganography list any 4 tools to achieve steganography?
OpenStego: This program is an open-source steganography tool. Xiao Steganography: Xiao hides secret files in WAV or BMP files. Crypture: This application is a command-line tool used to conduct steganography. NoClue: This application is an open-source tool that hides text information in both video and image carrier …
What is phase coding in steganography?
In phase encoding scheme the phase of carrier file is replaced with reference phase which represents hidden data. In parity coding signals are divided into regions, then parity bit of each region calculated and matched with secret message bit. Depending on parity matching result encoding is done.
What is LSB and MSG?
In computing, the least significant bit (LSB) is the bit position in a binary integer representing the binary 1s place of the integer. Similarly, the most significant bit (MSB) represents the highest-order place of the binary integer.
How can DCT be used for data compression?
The DCT can be used to convert the signal (spatial information) into numeric data (“frequency” or “spectral” information) so that the image’s information exists in a quantitative form that can be manipulated for compression. The signal for a graphical image can be thought of as a three-dimensional signal.
What is LSB vs MSB?
In a binary number, the bit furthest to the left is called the most significant bit (msb) and the bit furthest to the right is called the least significant bit (lsb).
Is there a video steganographic algorithm for discrete wavelet transform?
In this article, a robust and secure video steganographic algorithm in Discrete Wavelet Transform (DWT) and Discrete Cosine Transform (DCT) domains based on the Multiple Object Tracking (MOT) algorithm and Error Correcting Codes (ECC) is proposed.
Is there a secure video steganography algorithm using linear block code?
Steganography and data hiding have become necessary for information security. Steganography is the practice of concealing a file, message, image, or video within another file, message, image, or video. The paper referenced has proposed a secure video steganography algorithm using linear block code.
What is the best video steganography technique?
Video steganography technique based on DCT is one of the most popular methods in H.264 (H.264/AVC), and the existing H.264 video steganography methods based on DCT coefficient usually chooses quantized DCT coefficients to embed message.
What are the characterization of steganography systems?
Characterization of steganography systems 1. Capacity : Total number of bits hidden and successfully recovered by the Stego system 2. Robustness : Ability of the embedded data to remain intact if the stego-system undergoes transformation 3. Invisibility : Concept based on the properties of the human visual system.