Abstract
Data hiding is a technique for secure transmission of confidential data. Many data hiding techniques exist and steganography is the most important one. This paper presents a new steganography method in spatial domain. We use steganography to send confidential information from sender to receiver. Here, we generate password at random basis in a unique way based on system time and date. Then we send this confidential password using steganography by implementing a totally new embedding and extraction technique based on exact length of bits in binary representation of ASCII values. Here, confidential text information is embedded into cover image generating a stego image and sent to receiver maintaining top level secrecy.
Highlights
In the existing LSB technique, we embed the password in the least significant bit of red, green and blue components of the cover image to generate a stego image
We calculate the Peak Signal to Noise Ratio (PSNR) of the stego image generated from the Space Saver LSB technique i.e., our method
It can be seen that the PSNR value of our Space Saver LSB technique is much more improved compared with the existing LSB technique
Summary
Data transmission is the most vital task on the Internet. Sometimes confidential data plays such a major role that it cannot be sent directly. Confidential data hiding is one of the most important aspects of data transmission. This is accomplished by different steganography techniques
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