• SUNKARI LAKSHMI PRIYA
• Palutla Madhavi
• Puli Sasi Venkata Kumar
• Damerla Harshavardhan
• Ms. Manasa Devi

Data transmission by maintaining secrecy is the main thing present day systems lacking. Steganography is proposed to provide a solution to these things. In general, Stego means "covering" and graphia means "writing" Combination of them gives the meaning of steganography, Steganography is different from cryptography. Cryptography makes secrete information unreadable format but attacker knows the existence of data. Steganography uses the cover file to hide secrete data and it tries to cease the existence of secrete data. Breaking a stego image is difficult compared to encrypted message. The main Objective of Steganography is to transmit data from sender to receiver in a way that the attacker should not be able to notice the existence of data. To transmit the data a carrier will be chosen to hide the secrete data. Most commonly used carriers are images, audio, files, video files. Modern day communication is enhancing with improvements in size of data. With minimizing barriers on size of Data that can be transferred we can provide Secrecy and Security. Secrecy is provided by concealing Secrete data in cover medium which can cause distortion to the cover medium with proportion to the amount of Secrete data concealed. Security of Data can provided at the cost of Quality of cover medium by concealing minimum Secrete data in cover medium. Quality of the medium remains unnoticed with human perception.

"Research on dual layer security for image stegnography", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.9, Issue 4, page no.c418-c423, April-2022, Available :http://www.jetir.org/papers/JETIR2204259.pdf

"Research on dual layer security for image stegnography", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.9, Issue 4, page no. ppc418-c423, April-2022, Available at : http://www.jetir.org/papers/JETIR2204259.pdf