Original scientific paper

https://doi.org/10.1080/00051144.2019.1624409

Dynamic virtual cluster cloud security using hybrid steganographic image authentication algorithm

K. Venkatraman ; Anna University, Chennai, India
K. Geetha ; Department of Computer Science & Engineering, Excel Engineering College, Anna University, Komarapalayam, India

Abstract

Storing data in a third party cloud system causes serious problems on data confidentiality. Generally, encryption techniques provide data confidentiality but with limited functionality, which occurs due to unsupported actions of encryption operation in cloud storage space. Hence, developing a decentralized secure storage system with multiple support functions like encryption, encoding, and forwarding tends to get complicated, when the storage system spreads. This paper aims mainly on hiding image information using specialized steganographic image authentication (SSIA) algorithm in clustered cloud systems. The SSIA algorithm is applied to virtual elastic clusters in a public cloud platform. Here, the SSIA algorithm embeds the image information using blowfish algorithm and genetic operators. Initially, the blowfish symmetric block encryption is applied over the image and then the genetic operator is applied to re-encrypt the image information. The proposed algorithm provides an improved security than conventional blowfish algorithm in a clustered cloud system.

Keywords

Genetic algorithm; encryption; blowfish algorithm; cloud security; steganography

Hrčak ID:

239803

URI

https://hrcak.srce.hr/239803

Publication date:

28.7.2019.

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