New Data hiding method based on DNA and Vigenere Autokey
People are always looking for secure methods to protect valuable information against unauthorized access or use. That's why; disciplines like cryptography and steganography are gaining a great interest among researchers. Recent steganographic techniques hide data into digital media such as sound, images, and videos. However, steganography took a step further to utilize the DNA as a carrier of secret information. DNA-based steganography techniques could be for either authentication or data storage. There is a special property for real DNA sequences, that is, there is almost no difference between a real DNA sequence and a fake one. This property has been be exploited in this study. A distinct type of hiding approach is adopted in this work to be applied on the DNA sequences based on cryptographic method called Vigenere Autokey. The proposed mechanism hides the secret message via converting it along with the key to the DNA sequences and then applying the Autokey cipher using a special table created via making use of DNA-XOR operator to increase the security of the proposed mechanism. So, it can meet the requirements of good steganographic system (with high embedding capacity, good visual imperceptibility, and reasonable level of security).
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