scholarly journals A Novel Approach to Communicate Secret Message between Users Using Sponge Function Technique on NTRU

2013 ◽  
Vol 4 (2) ◽  
Author(s):  
S. Varaprasad ◽  
K.Venkata Rao ◽  
P.S. Avadhani
Keyword(s):  
Function Technique ◽  
Secret Message ◽  
Novel Approach

scholarly journals A Novel Approach Covert Channel for Secret Communications

2014 ◽  
Vol 14 (2) ◽  
pp. 5479-5486
Author(s):  
Ali Hussein Hadi
Keyword(s):  
Social Network ◽  
Public Service ◽  
Communication Channel ◽  
Secret Message ◽  
Covert Channel ◽  
Covert Communication ◽  
Application Layer ◽  
Video Frames ◽  
Novel Approach ◽  
Two Phases

This paper presents a novel covert channel for secret communications. It implements a new application layer covert channel, by applying multimedia steganography techniques to hide secret messages. This new channel method (called Under Your Radar (UYR)) provides a stealthiness method for the communication channel and an efficient method for hiding messages, as proved by our investigations. Such a covert channel will be used for transferring secret messages in two phases. In phase one, the message characters will be embedded randomly into the pixels of video frames. The choice of pixels is dependent on finding an identical value of the character ASCII representation from one of the pixel channels. The positions of pixels will form the steganography key, which will be used later to extract the message. Also, the steganography key will be embedded in an image using the LSB steganography technique. In phase two, the secret message will be exchanged between the sender and the receiver by sharing the video along with the steganography key over a public service (e.g.  a social network), which serves as the new covert communication channel. The experiments outcomes have showed an improvement on the success of the proposed covert channel in exchanging secret messages without rising suspicion by observers or detection tools.

scholarly journals A Novel Approach for Arabic Text Steganography Based on the “BloodGroup” Text Hiding Method

2017 ◽  
Vol 7 (2) ◽  
pp. 1482-1485
Author(s):  
S. Malalla ◽  
F. R. Shareef
Keyword(s):  
Blood Group ◽  
Time Complexity ◽  
Third Party ◽  
Secret Message ◽  
Covert Communication ◽  
Arabic Text ◽  
Hiding Capacity ◽  
Novel Approach ◽  
Text Steganography

Steganography is the science of hiding certain messages (data) in groups of irrelevant data possibly of other form. The purpose of steganography is covert communication to hide the existence of a message from an intermediary. Text Steganography is the process of embedding secret message (text) in another text (cover text) so that the existence of secret message cannot be detected by a third party. This paper presents a novel approach for text steganography using the Blood Group (BG) method based on the behavior of blood group. Experimentally it is found that the proposed method got good results in capacity, hiding capacity, time complexity, robustness, visibility, and similarity which shows its superiority as compared to most several existing methods.

scholarly journals Combined Audio Steganography and AES Encryption to Hide the Text and Image into Audio using DCT

2019 ◽  
Vol 8 (3) ◽  
pp. 1732-1738
Keyword(s):  
Experimental Study ◽  
Wireless Channel ◽  
Secret Message ◽  
Test Cases ◽  
Encryption Scheme ◽  
Text And Image ◽  
Audio Steganography ◽  
Plain Text ◽  
Novel Approach ◽  
Prime Concern

Recently, security has become the prime concern for any organization and other civil and military applications. In this field of security, the data security during communication over an insecure wireless channel is the most important task which can be done by performing cryptography, watermarking and steganography. However, cryptography and watermarking schemes can be identified easily because of change in the data structure hence attackers can focus on that particular part to hack the secret information whereas steganography is a hiding mechanism in which secret message can be concealed into the cover and it can be retrieved at the receiver end. Several techniques have been introduced during last decade which are focused on image-image steganography and audio steganography. In the proposed work, we concentrate on audio steganography and develop a novel approach where secret message can be in the form of plain text or image, whereas cover message is in the form of audio. In order to provide additional security to this model we incorporate AES encryption scheme where secret message is encrypted and hidden in the cover audio. The proposed approach uses DCT coefficient computation and AES encryption scheme. An extensive experimental study is carried based on different test cases and evaluated against state-of-art techniques. The experimental study shows that the proposed approach achieves better performance for audio steganography.

scholarly journals Music Cryptography based on Carnatic Music

2019 ◽  
Vol 9 (1) ◽  
pp. 5107-5114
Keyword(s):  
Classical Music ◽  
Secret Message ◽  
Musical Note ◽  
Carnatic Music ◽  
Novel Approach ◽  
Opinion Score ◽  
English Alphabet ◽  
Ancient Times ◽  
Music File ◽  
Music Clip

Music and cryptography have been linked to one another since ancient times. The idea of replacing plaintext letters with music notes and sending the music file to receiver, is not new. But such replacements sometimes result in music clips which are not pleasant to listeners and thereby leading to the music clip gaining unnecessary extra attention. Most of the works done in this area, fail to ensure the generation of a music clip that invariably conforms to any particular form of music. Melody of the music clip is neglected. In order to address this issue, current paper proposes a novel approach for sharing a secret message based on concepts of Carnatic Classical Music. The method proposed here aims at converting a message in textual format to a music clip before sending it to the receiver. Receiver can then decrypt that message using the knowledge of range of frequency values associated with each musical note also called as 'swara' in Carnatic Classical Music. Each plaintext character from English alphabet is replaced by different combinations of swaras. The set of swaras mapped to each plaintext character is so chosen that the final music file produced as the output of encryption always conforms to a melodic form ('Raga') governed by the framework of Carnatic Classical Music. Ten subject matter experts in the field of Carnatic music have given their opinion about the conformance of these music clips to specified ragas. Also, Mean Opinion Score (MOS) of 25 listeners has been tabulated to test and verify the melodic aspect of these music clips.

scholarly journals A Hybrid Method of Hiding The Text Information Using Stegnography

2013 ◽  
pp. 21-25
Author(s):  
M.Grace Vennice ◽  
M. Swapna ◽  
MD.Ahmad Ali ◽  
T.Dharma Reddy
Keyword(s):  
Hybrid Method ◽  
Information Hiding ◽  
Secret Message ◽  
Privacy And Security ◽  
New Approach ◽  
Novel Approach ◽  
Text Steganography ◽  
Suitable Amount ◽  
History Of ◽  
Text Information

The Often Distribution of encrypted messages will depict the concentration of third parties. The attempts can be made to break and expose the actual messages by the hackers and cracker crackers. To conceal the subsistence of message steganography is introduced by hiding a secret message inside another credulous message.Steganography along with cryptograph y is used and offers suitable amount of privacy and security over the communication cha channel. nnel. In this paper along with various existing text text-based steganography techniques, an overview of text steganography and a concise history of steganography can be presented. The problems present in the text steganography and issues with existing solution solutionss are highlighted. In information hiding, a novel approach is proposed by using inter-word word spacing and inter inter-paragraph paragraph spacing as a hybrid method. Based on the length of the secret message, the proposed method provides dynamic generated stego stego-text with six ix options of maximum capacity. The considerable drawbacks of every existing method and how our new approach might be recommended as a solution can be analyzed in this paper.

A FIRST CRYPTOSYSTEM FOR SECURITY OF TWO-DIMENSIONAL DATA

Fractals ◽  
2017 ◽  
Vol 25 (01) ◽  
pp. 1750011
Author(s):  
D. C. MISHRA ◽  
HIMANI SHARMA ◽  
R. K. SHARMA ◽  
NAVEEN KUMAR
Keyword(s):  
Security Analysis ◽  
Image Data ◽  
Secret Message ◽  
Two Dimensional ◽  
Gray Scale ◽  
Text Data ◽  
Text Document ◽  
Novel Approach ◽  
Encryption And Decryption ◽  
Rgb Images

In this paper, we present a novel technique for security of two-dimensional data with the help of cryptography and steganography. The presented approach provides multilayered security of two-dimensional data. First layer security was developed by cryptography and second layer by steganography. The advantage of steganography is that the intended secret message does not attract attention to itself as an object of scrutiny. This paper proposes a novel approach for encryption and decryption of information in the form of Word Data (.doc file), PDF document (.pdf file), Text document, Gray-scale images, and RGB images, etc. by using Vigenere Cipher (VC) associated with Discrete Fourier Transform (DFT) and then hiding the data behind the RGB image (i.e. steganography). Earlier developed techniques provide security of either PDF data, doc data, text data or image data, but not for all types of two-dimensional data and existing techniques used either cryptography or steganography for security. But proposed approach is suitable for all types of data and designed for security of information by cryptography and steganography. The experimental results for Word Data, PDF document, Text document, Gray-scale images and RGB images support the robustness and appropriateness for secure transmission of these data. The security analysis shows that the presented technique is immune from cryptanalytic. This technique further provides security while decryption as a check on behind which RGB color the information is hidden.

A Novel Approach to Secure Communication Using Audio Steganography

2011 ◽  
Vol 403-408 ◽  
pp. 963-969 ◽  
Author(s):  
Mayank Srivastava ◽  
Mohd Qasim Rafiq
Keyword(s):  
Secure Communication ◽  
Secret Message ◽  
Information Revolution ◽  
Digital Information ◽  
Audio Signals ◽  
Secret Data ◽  
Encoding Scheme ◽  
Audio Steganography ◽  
Novel Approach ◽  
And Performance

The digital information revolution has brought important changes in our society and life. Nowadays, large amount of data is transmitted over the network and if the data that is being transmitted is important, one should use secure technique like steganography to transmit it. Steganography is a method of hiding a secret message in a cover media such as text, image, audio etc. in a way that hides the existence of the secret data. This paper introduces new method for audio steganography. The proposed method works on the basis of low bit blind encoding scheme which is used to embed secret data into non-silent samples of wav audio file. Robustness and performance of the proposed scheme is investigated by performing experiments on different audio signals.

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