Text Hiding In Image Based On Robust Spatial Hashing Algorithm

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Nadia Abud Al_karim , Suhad A. Ali , Majid Jabbar Jawad

Abstract

Due to its efficiency in resisting steganographic techniques, the concept of coverless information concealment has been considerably improved since it was first presented. In this paper; a new coverless steganography for text hiding is proposed in order to better hide secret data and improve attack resistance. This method depends on spatial domain. The embedding process consists of several steps. Firstly, the secret data is divided into no overlapping segments. Secondly, find appropriate images to be stego images and divided it to blocks. Thirdly, to build a hash sequence for an image, a powerful hashing algorithm is used. Fourthly, choose the image which its hash equivalent to the secret data segment. Fifthly, choose the image which its hash equivalent to the secret data segment. The suggested method's robustness is evaluated by a series of tests. The results of the studies show that the proposed technique is resistant to JPEG compression, noise, low pass filtering, scaling, rotation, median and mean filtering, brightness, and sharpening, among other image processing attacks.

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