Abstract
Cryptography provides a method for obscuring the original data, whereas steganography provides a means for obscuring the mere presence of data. Many different carriers are used such as audio, video, images etc. to hide the data. Images are the most commonly used carriers. Once the data is hidden, the image can then be sent to the receiver. This method is secure because only the sender and receiver are aware of the communication. Many different steganographic techniques have been proposed for secure data communication, but these are highly vulnerable to attacks when the presence of hidden data is exposed. In this paper, an improved image steganography method is proposed. The data is initially encrypted using RSA algorithm. Instead of using the traditional Least Significant Bit encoding, the proposed system uses a method similar to the Braille form of character representation. Using this representation, the encrypted text and the key are encoded into the image. The resultant image is the steganographic image that is used for communication. This proposed method has proven to be more secure than the existing methods. The results and experiments have been explained in detail.
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Sriram, S., Sathishkumar, S.P., Bhuvana, J. (2020). Braille Based Steganography System Using Dynamic Key Exchange. In: Thampi, S., Martinez Perez, G., Ko, R., Rawat, D. (eds) Security in Computing and Communications. SSCC 2019. Communications in Computer and Information Science, vol 1208. Springer, Singapore. https://doi.org/10.1007/978-981-15-4825-3_29
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DOI: https://doi.org/10.1007/978-981-15-4825-3_29
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