Security Enhancement: Combining Cryptography and Steganography

Seth, Dhawal; Lakshmanan, L.; Pandey, Abhishek

doi:10.5120/1433-1932

Cited by 16 publications

(12 citation statements)

References 6 publications

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“…In [13], authors first embed the secret data within cover image using LSB technique and then apply DES encryption method for encrypting the data which provides better security.…”

Section: Steganography Vs Cryptographymentioning

confidence: 99%

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A Crypto-Steganography: A Survey

Rahmani¹,

Arora²,

Pal³

2014

ijacsa

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Abstract-The two important aspects of security that deal with transmitting information or data over some medium like Internet are steganography and cryptography. Steganography deals with hiding the presence of a message and cryptography deals with hiding the contents of a message. Both of them are used to ensure security. But none of them can simply fulfill the basic requirements of security i.e. the features such as robustness, undetectability and capacity etc. So a new method based on the combination of both cryptography and steganography known as Crypto-Steganography which overcome each other's weaknesses and make difficult for the intruders to attack or steal sensitive information is being proposed. This paper also describes the basics concepts of steganography and cryptography on the basis of previous literatures available on the topic.

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“…In [13], authors first embed the secret data within cover image using LSB technique and then apply DES encryption method for encrypting the data which provides better security.…”

Section: Steganography Vs Cryptographymentioning

confidence: 99%

“…Intruders may reveal the information to others, misuse or modify the information, misrepresent them to an individual/ organization or use them to plan even some more severe attacks [13]. One of the solutions to this problem is through the use of steganography and cryptography.…”

Section: Introductionmentioning

confidence: 99%

A Crypto-Steganography: A Survey

Rahmani¹,

Arora²,

Pal³

2014

ijacsa

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“…2) Text encryption with Data Encryption Standard (DES) and LSB insertion Dhawal Seth et Al [14] combines cryptography and steganography, so as to ensure more security over insecure communication channel. DES cryptographic algorithm being used for encrypting the text message in conjunction with LSB substitution for embedding the encrypted message in the cover image.…”

Section: )mentioning

confidence: 99%

Improvisation of Security aspect of Steganographic System by applying RSA Algorithm

Ramaiya¹,

Goyal²,

Hemrajani³

2016

ijacsa

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Abstract-The applications accessing multimedia systems and content over the internet have grown extremely in the earlier few years. Moreover, several end users or intruders can simply use tools to synthesize and modify valuable information. The safety of information over unsafe communication channel has constantly been a primary concern in the consideration of researchers. It became one of the most important problems for information technology and essential to safeguard this valuable information during transmission. It is also important to determine where and how such a multimedia file is confidential. Thus, a need exists for emerging technology that helps to defend the integrity of information and protected the intellectual property privileges of owners. Various approaches are coming up to safeguard the data from unauthorized person. Steganography and Cryptography are two different techniques for security data over communication network. The primary purpose of Cryptography is to create message concept unintelligible or ciphertext might produce suspicious in the mind of opponents. On the other hand, Steganography implant secrete message in to a cover media and hides its existence. As a normal practice, data embedding is employed in communication, image, text or multimedia contents for the purpose of copyright, authentication and digital signature etc.Both techniques provides the sufficient degree of security but are vulnerable to intruder's attacks when used over unsecure communication channel. Attempt to combines the two techniques i.e. Cryptography and Steganography, did results in security improvement. The existing steganographic algorithms primarily focus on embedding approach with less attention to preprocessing of data which offer flexibility, robustness and high security level. Our proposed model is based on Public key cryptosystem or RSA algorithms in which RSA algorithm is used for message encryption in encoding function and the resultant encrypted image is hidden into cover image employing Least Significant Bit (LSB) embedding method.

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“…Cryptography originates from the Greek words "κρυπτός, Kryptos, "Hidden / Secret" and γράφειν, graphein, "writing". The original message to be encoded is called the "Plain Text", the message obtained at the end of the conversion is called the "Cipher Text", the coding of the message during the conversion is called the "encryption" and the reversal process of this is called the "decryption" (Menezes et al, 1996;Seth et al, 2010;Stallings, 2010;Narayana and Prasad, 2010;Nivedhitha and Meyyappan, 2012). The AES -Advanced Encryption Standard method is the one used most in cryptography method.…”

Section: Introductionmentioning

confidence: 99%

Clsm: Couple Layered Security Model a High-Capacity Data Hiding Scheme Using With Steganography

Koçak

2017

Image Anal Stereol

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Cryptography and steganography are the two significant techniques used in secrecy of communications and in safe message transfer. In this study CLSM -Couple Layered Security Model is suggested which has a hybrid structure enhancing information security using features of cryptography and steganography. In CLSM system; the information which has been initially cryptographically encrypted is steganographically embedded in an image at the next step. The information is encrypted by means of a Text Keyword consisting of maximum 16 digits determined by the user in cryptography method. Similarly, the encrypted information is processed, during the embedding stage, using a 16 digit pin (I-PIN) which is determined again by the user. The carrier images utilized in the study have been determined as 24 bit/pixel colour. Utilization of images in .jpeg, .tiff, .pnp format has also been provided. The performance of the CLSM method has been evaluated according to the objective quality measurement criteria of PSNR-dB (Peak Signal-to-Noise Ratio) and SSIM (Structural Similarity Index). In the study, 12 different sized information between 1000 and 609,129 bits were embedded into images. Between 34.14 and 65.8 dB PSNR values and between 0.989 and 0.999 SSIM values were obtained. CLSM showed better results compared to Pixel Value Differencing (PVD) method, Simulated Annealing (SA) Algorithm and Mix column transform based on irreducible polynomial mathematics methods.

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Security Enhancement: Combining Cryptography and Steganography

Cited by 16 publications

References 6 publications

A Crypto-Steganography: A Survey

A Crypto-Steganography: A Survey

Improvisation of Security aspect of Steganographic System by applying RSA Algorithm

Clsm: Couple Layered Security Model a High-Capacity Data Hiding Scheme Using With Steganography

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