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Found 1009 Articles for Safe & Security
![Ginni](https://www.tutorialspoint.com/assets/profiles/315708/profile/60_2311-1620134876.jpg)
592 Views
Steganography is the art and science of hiding data such that its presence cannot be identified and a communication is appearing. A secret data is encrypting in an aspect such that the very continuation of the information is concealed.In steganography software, it can be paired with current communication methods, steganography can be used to give out hidden exchanges.The main objective of steganography is to communicate securely in a completely unidentifiable manner and to prevent drawing suspicion to the transmission of a hidden information.There are several applications have multiple requirements of the steganography methods used. For instance, there are several applications ... Read More
![Ginni](https://www.tutorialspoint.com/assets/profiles/315708/profile/60_2311-1620134876.jpg)
661 Views
In audio steganography, secret message is installed into digitized audio signal which result offend altering of binary series of the matching audio file. There are several methods are available for audio steganography which are as follows −Low-bit encoding − Binary information can be saved in the Least Significant Bits of the sound files (same to the image files). For instance, channel capacity is 1kb per second per Hz. Thus, if it can have an 8kHz sequence, the capacity is 8kbps.This method present audible noise. This has very low immunity to manipulation. Factors such as resampling and channel noise can simply ... Read More
![Ginni](https://www.tutorialspoint.com/assets/profiles/315708/profile/60_2311-1620134876.jpg)
3K+ Views
Audio steganography is an approach of hiding information within an audio signal. As data is embedded in the signal, it gets changed. This modification should be create indistinguishable to the human ear.Image can also be taken as a medium but audio steganography is more impressive because of the features of Human Auditory System (HAS) like large power, powerful range of hearing and high range of audible frequency.Cryptography includes the encryption of message. It creates no attempt to conceal the encrypted message. In steganography, the original message is not changed but the very continuation is secret from the intruder by embedding ... Read More
![Ginni](https://www.tutorialspoint.com/assets/profiles/315708/profile/60_2311-1620134876.jpg)
752 Views
Steganography is the art of concealing the fact that connection is taking place, by hiding data in other information. Some different carrier file structure can be used, but digital images are the important because of their frequency on the computer network.For concealing private data in images, there exists a huge method of steganographic approaches some are more difficult than others and some have specific powerful and weak points.There are several applications have multiple requirements of the steganography methods used. For instance, there are some software can needed absolute invisibility of the hidden information, while others needed a higher secret message ... Read More
![Ginni](https://www.tutorialspoint.com/assets/profiles/315708/profile/60_2311-1620134876.jpg)
4K+ Views
Least significant bit (LSB) insertion is a common and simple method to embed data in an image file. In this approach the LSB of a byte is restored with an M’s bit. This technique operate well for image steganography. For hiding data within the images, the LSB (Least Significant Byte) approach is generally used.An image file is a file that shows multiple colors and intensities of light on different location of an image. The best type of image files to hide data inside is a 24 Bit BMP (Bitmap) image.When an image is of large quality and resolution it is ... Read More
![Ginni](https://www.tutorialspoint.com/assets/profiles/315708/profile/60_2311-1620134876.jpg)
5K+ Views
Steganography is not only the art of hiding information but also hiding the element of transmission of secret information. Steganography hides the secret information in another file in such a method that only the recipient understand the existence of message.In ancient time, the data was secured by hiding it on the back of wax, scripting tables, and stomach of rabbits or on the scalp of the slaves. But today’s there are some people transmit the information in the form of text, images, video, and audio over the medium.It can be securely transmission of confidential information, the multimedia objects such as ... Read More
![Ginni](https://www.tutorialspoint.com/assets/profiles/315708/profile/60_2311-1620134876.jpg)
282 Views
Image steganography has truly state-of-the-art with the invention of quick, dynamic computers. Software is simply accessible for processing and hiding of data images. Images can also be recovered very simply.There are three main methods of information hiding in images which are as follows −Least Significant Bit Insertion − This is the most famous image steganography technique. It is simple, easy to make and also simply to use. Unfortunately, it is intensely vulnerable to attack. A simple conversion of structure can damage all hidden data.The best approach of image document to hide data inside is a 24 Bit BMP (Bitmap) image. ... Read More
![Ginni](https://www.tutorialspoint.com/assets/profiles/315708/profile/60_2311-1620134876.jpg)
223 Views
Images are the most famous cover objects used for steganography. In image steganography, pixel intensities are used to conceal the information. In the area of digital images, there are different image file formats exist, most of them for definite applications.An image is a set of numbers that constitute different light intensities in different location of the image. This numeric description forms a grid and the single points are defined as pixels. Most images on the Internet includes a rectangular map of the image’s pixels (defined as bits) where each pixel is situated and its colour. These pixels are shown horizontally ... Read More
![Ginni](https://www.tutorialspoint.com/assets/profiles/315708/profile/60_2311-1620134876.jpg)
369 Views
There are various approaches of text steganography which are as follows −Line Shift − In this method, secret message is private by vertically changing the text lines to some degree. A line decided has two clear control lines one on side of it for identifying the direction of movement of the marked line. It can hide bit 0, a line is changed up and to hide bit 1, the line is changed down.Determination of whether the line has been changed up or down is completed by computing the distance of the centroid of apparent line and its control lines. If ... Read More
![Ginni](https://www.tutorialspoint.com/assets/profiles/315708/profile/60_2311-1620134876.jpg)
435 Views
Steganography is the art and science of concealing a message within another message without drawing some suspicion to others so that the message can only be identified by its intended recipient.There are various techniques of text steganography which are as follows −Line-shift coding − Features are marked into the text by changing the lines, so as to create recognition harder. Text lines are vertically changed for encoding. This can be used to either a format file or to the bitmap of a page.By transforming each second line of the document 1/300th of an inch up or down, line-shift encrypting provide ... Read More