Steganography program is mainly concerned
about covering the way that a mystery message is being
sent, just as hiding the substance of the message. Any
computerized picture is contained pixels of various sizes
of lattices; different picture steganography algorithms
have been created. In this research, it has been exploited
the irregular pixel selection based improved LSB
exchange technique to hide a message into a cover
image. We have considered a mystery message and a
spread picture. In the LSB approach, the essential
thought is to supplant the Least Significant Bits (LSB)
of the spread picture with the bits of the message to be
covered up without wrecking the property of the spread
picture altogether. The LSB-based system is the most
testing one as it is hard to separate between the spread
item and stego-object as not many LSB bits of the
spread article are supplanted. In digital image there are
diverse types of file setup available such as Bitmap,
PNG, JPEG, GIF etc. The proposed method focused on
BMP images as it is uncompressed and convenient file
format to implement LSB steganography technique.
Before applying the proposed steganography method,
we apply AES cryptography technique to encrypt the
top-secret message to improve the security and it will
alter the top-secret message to into cipher text. Then
through our propose method, we embed the ciphertext
into the LSB of the blue component among RGB value.
We select pixels randomly through using 1 D logistic
map. This method uses X-OR operation for embedding
and extracting. Various size data are embedded into the
images and PSNR are also considered for these images.
It is being expected that the suggested technique will
able to hide large amount of data and retaining the
advantages of the LSB method.
Keywords : Steganography; Cryptography; 1 D Logistic Map; AES Algorithm; Stego Image; PSNR.