Dynamic virtual cluster cloud security using hybrid steganographic image authentication algorithm

Venkatraman, Karthika; Geetha, K.

doi:10.1080/00051144.2019.1624409

Cited by 8 publications

(3 citation statements)

References 22 publications

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“…The experimental results showed that there is relative stability in the PSNR and MSE values despite the increase of hidden images within the stego image. Proposed scheme 52.31 Adaptive LSB [24] 48.21 Pixel selection technique [25] 47.53 Hybrid cluster-based [19] 4 5 Basic LSB 42.21…”

Section: Discussionmentioning

confidence: 99%

“…3 demonstrates the PSNR test of the proposed scheme in comparison with other steganography methods. It shows that the proposed solution achieves better results than some existing methods such as adaptive LSB [24], multi-stage protection using Pixel Selection [25], and hybrid cluster-based steganographic authentication algorithm [19]. The reason behind this is that small changes occur in the discrete cosine transformation coefficients.…”

Section: Msementioning

confidence: 90%

“…The PSNR could be enhanced with 16-bit coding because more information could be represented in a pixel. Venkataramana et al [19] have developed a specialized steganographic image authentication (SSIA) algorithm for clustered cloud environments. Hybrid steganography in the private cloud is dynamically used to ensure security in hybrid cluster environments.…”

Section: Literature Reviewmentioning

confidence: 99%

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An Enhanced Graphical Authentication Scheme Using Multiple-Image Steganography

Al-Shqeerat¹

2023

Computer Systems Science and Engineering

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Most remote systems require user authentication to access resources. Text-based passwords are still widely used as a standard method of user authentication. Although conventional text-based passwords are rather hard to remember, users often write their passwords down in order to compromise security. One of the most complex challenges users may face is posting sensitive data on external data centers that are accessible to others and do not be controlled directly by users. Graphical user authentication methods have recently been proposed to verify the user identity. However, the fundamental limitation of a graphical password is that it must have a colorful and rich image to provide an adequate password space to maintain security, and when the user clicks and inputs a password between two possible grids, the fault tolerance is adjusted to avoid this situation. This paper proposes an enhanced graphical authentication scheme, which comprises benefits over both recognition and recall-based graphical techniques besides image steganography. The combination of graphical authentication and steganography technologies reduces the amount of sensitive data shared between users and service providers and improves the security of user accounts. To evaluate the effectiveness of the proposed scheme, peak signal-to-noise ratio and mean squared error parameters have been used.

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Section: Discussionmentioning

confidence: 99%

Section: Msementioning

confidence: 90%

Section: Literature Reviewmentioning

confidence: 99%

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