Stypher Steganography using LSB and deflate algorithm

The study entitled, Stypher: Embedding file into image using Least Significant Bit Algorithm with Data Compression using Deflate Algorithm is an application that help the users to hide and compressed confidential files into an image. Steganography is the art of hiding information in ways that prevent detection. Many different carrier file formats can be used, but digital images are the most popular because of their frequency on the Internet. The least significant bit based approach is a popular type of steganographic algorithms in the spatial domain. The advantage of LSB is its simplicity to embed the bits of the message directly into the LSB plane of cover-image. Many applications use this method. One of the problems of embedding files into image is the size of the carrier file, in which the more files embedded on it, the bigger the size of the carrier will somehow that will affect the secrecy of the steganography. Therefore, for the solution of this problem, we used Deflate Algorithm to compress or double compress files that will make the carrier image looks a like with the original. Deflate algorithm is the combination of Huffman coding and LZ77 algorithm. It was tested and approved using functional and conformance test. A total of 45 respondents consisting of thirty-five (35) End- Users and ten (10) I.T. Experts were the respondents. The result shows that the usability gained the highest weighted mean 3.68 which represents as “Highly Acceptable” because the system bear on the user’s effort for operation and operation control, while the reliability gained the lowest weighted mean 3.54 which represents as “Highly Acceptable” because the system can bear on the frequency of failure by faults done in the system.