A novel LSB based image steganography with multi-level encryption

Charan, Gunda Sai; S, Nithin Kumar S; Karthikeyan, B.; Vaithiyanathan,; K, Divya Lakshmi

doi:10.1109/iciiecs.2015.7192867

Cited by 22 publications

(7 citation statements)

References 12 publications

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“…Thus, several algorithms have been developed in the past years which make use of multiple keys to generate either the same chaotic map or multiple chaotic maps. This is normally done so as to achieve multi-level encryption and in so doing enhancing the security of the schemes proposed [36], [13], [38], [39].…”

Section: Related Workmentioning

confidence: 99%

A Selective Image Encryption Scheme Based on 2D DWT, Henon Map and 4D Qi Hyper-Chaos

Tresor

Sumbwanyambe

2019

IEEE Access

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In recent years hyperchaos has found applications in several fields such as medicine and engineering. It has been applied in image-based applications which require reliable, fast, and robust security systems to store or/and transfer images. Given the increased use of images, there is a fundamental requirement among security in ensuring protection, confidentiality, privacy, integrity, and authenticity of such images. This, in essence, has become a major concern. Many preventive and protective algorithms, including chaos-based schemes, have been developed over the past years in trying to prevent directed attacks. However, many existing chaos-based encryption schemes have been successfully decrypted. One of the main reasons for these chaos-based image encryption schemes being successfully attacked is that the degree of randomness of the chaotic system used is not high enough to guarantee robust encryption.The key space lengths of many of the existing cryptosystems are not long enough to guarantee the desired security properties of chaos-based ciphers. Thus, the security level is lowered. In this paper, a selective image encryption algorithm based on 2D Discrete Wavelet Transform, Henon's Map and 4D Qi Hyper Chaos is proposed. This paper is developed such that 2D DWT is used to decompose the image into details and approximations, Henon chaotic map is used to shuffle the decomposed image pixels' positions. The shuffled image is further encrypted with the bit streams generated by Qi hyperchaos using XOR operation. The experimental results demonstrate that the proposed algorithm provides a large key space, high security, and resistance to different types of attacks. When compared to some existing algorithms, the performance of the proposed method displays a better performance with respect to security and encryption making it suited for real-time applications.

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Section: Related Workmentioning

confidence: 99%

A Selective Image Encryption Scheme Based on 2D DWT, Henon Map and 4D Qi Hyper-Chaos

Tresor

Sumbwanyambe

2019

IEEE Access

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“…al. [15]propose Novel approach based LSB With Multi-Level Encryption for image steganography where encrypting the plain text into two platforms, during the first platform it is encrypted utilize Ceaser cipher where each letter of plain text is supplanted by another letter at distance specify by given key and in the second platform it is encrypted utilizing chaos theory where the chaotic sequences created from various initial conditions that are free of one another and each part of secret data is encrypted with various initial conditions subsequently all parts are converged into cipher text then the cipher text embedding into a color image using 3, 3, 2 LSB where first 3 bits of ciphers are substitute with( 3 LSB) bits of red channel, next 3 bits of ciphers are substitute with (3 LSB) bits of green channel, and last 2 bits of ciphers are substitute with (2 LSB) bits of blue channel.…”

Section: Li̇terature Surveymentioning

confidence: 99%

Untitled

2019

IJMA

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The Internet is the essential wellspring of data in the present life where it offers the trade of data to the clients.The exchange of such data prompts an incredible security danger. Cryptography and steganography are two issues in security systems.Cryptography jumbles the message to be incomprehensible While Steganography shroud the message To be invisible. Therefore, Encryption any private data before concealing in the cover object will provide twofold security. This paper presents a technique for disguise message with four levels of security where the message first encrypt using modifying vernam cipher, in which the initial key originate automatically from random pixel of camouflage cover and alter continuously along message length then embedded cipher message in grayscale cover image, after that encrypt this cover using modifying vernam cipher also then embedded it in RGB color cover image. The simulation consequence illustrates that the scheme provides better protection. K EYW ORDSImage steganography , modifying vernam cipher , message security, dual cryptography , spatial domain

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“…One way to do this is to take the sensitive or confidential information to be transmitted to perform an encryption process by implementing some cryptographic technique, and then take the encrypted message to perform a mixing process with a cover image using some steganographic technique [8]. Some examples of this are: [9] where the message to be transmitted is encrypted in two stages, the first by Caesar cipher and the second by chaos theory; the encrypted message is embedded in the cover image using the Least Significant Bit (LSB) substitution steganographic algorithm. [10] where the message to be transmitted is encrypted using Advance Encryption Standard (AES) encryption; at the same time, the cover image is preprocessed to resize it and identify the areas where the LSB substitution process was performed using inverse Wavelet Transform and Artificial Neural Networks (ANN).…”

Section: Introductionmentioning

confidence: 99%

Enhanced Security: Implementation of Hybrid Image Steganography Technique using Low-Contrast LSB and AES-CBC Cryptography

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A²,

S³

2022

IJACSA

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Now-a-days, sensitive and confidential information needs to be exchanged over open, public, and not secure networks such as the Internet. For this purpose, some information security techniques combine cryptographic and steganographic algorithms and image processing techniques to exchange information securely. Therefore, this research presents the implementation of an algorithm that combines the AES-CBC cryptographic technique with the LSB steganographic technique, which is statistically enhanced by image processing by looking for low-contrast areas where the encrypted information will be stored. This hybrid algorithm was developed to send a plaintext file hidden in an image in BMP format, so the changes in the image are invisible to the human eye and undetectable in possible steganographic analysis. The implementation was performed using Python and its libraries PyCryptodome for encryption and CV2 for image processing. As a result, it was found that the hybrid algorithm implemented has three layers of security over a plaintext encrypted and hidden in a digital image, which makes it difficult to break the secrecy of the information exchanged in a stego-image file. Additionally, the execution times of the hybrid algorithm were evaluated for different sizes of plaintext and digital image files.

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A novel LSB based image steganography with multi-level encryption

Cited by 22 publications

References 12 publications

A Selective Image Encryption Scheme Based on 2D DWT, Henon Map and 4D Qi Hyper-Chaos

A Selective Image Encryption Scheme Based on 2D DWT, Henon Map and 4D Qi Hyper-Chaos

Untitled

Enhanced Security: Implementation of Hybrid Image Steganography Technique using Low-Contrast LSB and AES-CBC Cryptography

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