PERBANDINGAN MODIFIED LEAST SIGNIFICANT BIT DAN SPREAD SPECTRUM PADA STEGANOGRAFI SINYAL AUDIO

• Main Authors: , AGUSTAN LATIF, , Drs. Edi Winarko, M.Sc., Ph.D.
• Format: Theses and Dissertations NonPeerReviewed
• Published: [Yogyakarta] : Universitas Gadjah Mada 2013
• Subjects: ETD
• Online Access: https://repository.ugm.ac.id/120265/; http://etd.ugm.ac.id/index.php?mod=penelitian_detail&sub=PenelitianDetail&act=view&typ=html&buku_id=60285
• Institution: Universitas Gadjah Mada

Steganography is a science and art which learns about the way to hide secret message in a media so the third party wouldn not realize whereabout of those message. The research explains experimental study about how steganography in digital audio media. This audio format using wave as it's format and steganography used Modified Least Significant Bit (MLSB) and Spread Spectrum (SS). In MLSB method, messsage is hidden by changing LSB value of audio signal with single bit at the message in certain embedded in audio byte files which have values of 254 or 255. For Spread spectrum method, secret message is coded and spreads to every spectrum that possible. This research has been done to analize the succesfull cryptographic unity with steganography in Modified Least Significant Bit and Spread Spectrum to a audio signal. A systems was build to ensure both method can be implementized to wave audio file, Testing performance of the systems, and unity of the message after steganography proccess. Result of the research shows that comparison between MLSB of steganography method and SS showing that in term of speed, sum of the message that can be embedded and SNR value, MLSB is more superior than Spread spectrum, but in terms of security Spread spectrum safer than MLSB.