- What is steganography and how it works?
- Why is steganography used?
- Is Steganography still used?
- Where is steganography used?
- What makes steganography unique?
- Who invented steganography?
- What is difference between steganography and cryptography?
- What is steganography explain its types?
- What is steganography PDF?
- How do you detect steganography?
- What are the advantages of steganography?
- What are the advantages and disadvantages of using steganography?
What is steganography and how it works?
The art and science of hiding information by embedding messages within other, seemingly harmless messages.
Steganography works by replacing bits of useless or unused data in regular computer files (such as graphics, sound, text, HTML, or even floppy disks ) with bits of different, invisible information..
Why is steganography used?
The purpose of steganography is covert communication to hide a message from a third party. This differs from cryptography, the art of secret writing, which is intended to make a message unreadable by a third party but does not hide the existence of the secret communication.
Is Steganography still used?
Is Steganography still used? Yes, Steganography is still popular among cyber criminals. Recent attacks show that security researchers found a new malware campaign that used WAV audio files to hide their malware. It is believed that the attackers used Steganography to embed the malicious code inside the WAV audio file.
Where is steganography used?
The uses of steganography are as varied as the uses of communication itself. Obviously you can use it to send secret messages to a friend, colleague, or co-conspirator. You can use it to transport sensitive data from point A to point B such that the transfer of the data is unknown.
What makes steganography unique?
Encryption is much simpler and far more data can be encoded in the same space. With techniques such as public-key encryption, you can even communicate without a secure channel. When steganography is used by itself, it’s security through obscurity, which can lead to the secret message being revealed.
Who invented steganography?
Johannes TrithemiusThe first recorded use of the term was in 1499 by Johannes Trithemius in his Steganographia, a treatise on cryptography and steganography, disguised as a book on magic.
What is difference between steganography and cryptography?
The steganography and cryptography are the two sides of a coin where the steganography hides the traces of communication while cryptography uses encryption to make the message incomprehensible. … On the other hand, the cryptography alters the standard secret message structure when transferred along the network.
What is steganography explain its types?
Steganography is the scheme of hiding the existence of secret information in the cover file. carrier file formats can be used like Text, Images, and videos, but digital Images and Audios are the most popular because of their frequency on the Internet. The steganography hides different types of data within a cover file.
What is steganography PDF?
Steganography is a technique of hiding information in digital media in such a way that no one apart from the intended recipient knows the existence of the information. Steganography can be viewed as akin tocryptography. Both have been used throughout recorded history as means to protect information.
How do you detect steganography?
By looking at repetitive patterns, you can detect hidden information in stego images. These repetitive patterns might reveal the identification or signature of a steganography tool or hidden information. Even small distortions can reveal the existence of hidden information.
What are the advantages of steganography?
The advantage of steganography, over cryptography alone, is that messages do not attract attention to themselves. Plainly visible encrypted messages—no matter how unbreakable—will arouse suspicion, and may in themselves be incriminating in countries where encryption is illegal.
What are the advantages and disadvantages of using steganography?
ConclusionsTechniqueAdvantagesDisadvantagesHigh Frequency Domain EncodingNoneImage is distorted. Message easily lost if picture subject to compression such as JPEG.3 more rows