Parallel Execution of the Steganography using SFLA on the Android Platform
A single core processors have become part of the past, processors manufacturers have continued of producing multi_core processors for many devices such as smart phones and tablets. By this act ,they enabled developers to develop multi-threaded application to speed up the work and increase efficiency of their applications.The goal of this research is to exploit the principles of parallel processing to construct integrated steganography application, which is running on the android platform. The research begins by providing a new suggested method for creating sketch images, as a cover for the secret data. The advanced encryption standard algorithm, which is provided by the Java Encryption Extension package, was used to encrypt the secret data and then the Shuffled Frog Leaping Algorithm was used to search for the best positions in the sketch image where the secret data can be embedded. It was developed here to work in parallel on quad-core processors. New embedding methods were proposed to embed the secret data based on the fitness of the best frog obtained from the SFLA . the embedding and extracting processes were done in parallel manner. Finally, this research provides the possibility of sending the stego image directly through techniques and some image-sending apps installed on the device .The highest speed up obtained when applying the SFLA algorithm in parallel manner was (3.72) and the highest efficiency was (0.93) while the highest speed up in the embedding process was (3.3), and the highest efficiency was (0.82) and the the highest speed up in the extracting process, was (2.21), and the highest efficiency was (0.55). The highest result of the proposed embedding way which reached it the PSNR measure was (81.3071 db) and the lowest measure was (0.00048).
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