In today's technologically advanced world, providing a secure communication route has become a difficult task. There is an extraordinary need for protection as risks to privacy become more prevalent. Cryptography and steganography are critical security approaches, however with the upsurge in network invaders, these approaches must adapt quickly to dodge these perils. The focus of this work is on image steganography, where the asylum instrument is a picture. We propose in the report a multilayer security approach for converting message text to its residue number system equivalent, using asymmetric encryption method, and embedding the ciphertext in the least significant bits of an image before sending it over the network to the intended recipient. The information is buried from the interloper in this approach, if it is discovered, decoding it would be problematic, providing a four-layer of security. The embedding and the extraction memory used were measured to show the whacking capability of the model and the histogram of the message to ensure that the distortion on the image imperceptibility is not visible.

Keywords : Least Significant Bits, Steganography, Cryptography, Residue Number System, Image Embedding, Image Extraction, ASCII Code.