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TIIS (한국인터넷정보학회)

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한글제목(Korean Title) Novel Secure Hybrid Image Steganography Technique Based on Pattern Matching
영문제목(English Title) Novel Secure Hybrid Image Steganography Technique Based on Pattern Matching
저자(Author) Ali Hamza   Danish Shehzad   Muhammad Shahzad Sarfraz   Usman Habib   Numan Shaf  
원문수록처(Citation) VOL 15 NO. 03 PP. 1051 ~ 1077 (2021. 03)
한글내용
(Korean Abstract)
영문내용
(English Abstract)
The secure communication of information is a major concern over the internet. The information must be protected before transmitting over a communication channel to avoid security violations. In this paper, a new hybrid method called compressed encrypted data embedding (CEDE) is proposed. In CEDE, the secret information is first compressed with Lempel Ziv Welch (LZW) compression algorithm. Then, the compressed secret information is encrypted using the Advanced Encryption Standard (AES) symmetric block cipher. In the last step, the encrypted information is embedded into an image of size 512 × 512 pixels by using image steganography. In the steganographic technique, the compressed and encrypted secret data bits are divided into pairs of two bits and pixels of the cover image are also arranged in four pairs. The four pairs of secret data are compared with the respective four pairs of each cover pixel which leads to sixteen possibilities of matching in between secret data pairs and pairs of cover pixels. The least significant bits (LSBs) of current and imminent pixels are modified according to the matching case number. The proposed technique provides doublefolded security and the results show that stego image carries a high capacity of secret data with adequate peak signal to noise ratio (PSNR) and lower mean square error (MSE) when compared with existing methods in the literature.
키워드(Keyword) Image Steganography   Information Hiding   Pair Matching   Secret Data Embedding   Least Significant Bits (LSB) Substitution   Compress Encrypted Data Embedding (CEDE)   Peak Signal to Noise Ratio (PSNR)   Mean Square Error (MSE)  
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