STEGANOGRAFI PADA BERKAS MP3 JAMAK DENGAN METODE SPREAD SPECTRUM DAN SHAMIR’S SECRET SHARING; STEGANOGRAPHY ON MULTIPLE MP3 FILES USING SPREAD SPECTRUM AND SHAMIR’S SECRET SHARING

Yoeseph, Nanang Maulana, Sri Hartati

2015 | Disertasi | FMIPA

The purpose of steganography is how to hide data into another media. In order to increase security of data, steganography technique is often combined with cryptography. The weakness of this combination technique is the data was centralized. Therefor, a steganography technique is develop by using combination of spread spectrum and secret sharing technique. In steganography with secret sharing, shares of data is created and hidden in several medium. Medium used to concealed shares were MP3 files. Hiding technique used was Spread Spectrum. Secret sahring scheme used was Shamir’s Secret Sharing. The result showed that steganography with spread spectrum combined with Shamir’s Secret Share using MP3 files as medium produce a technique that could hid data into several cover. To extract and reconstruct the data hidden in stego object, it is needed the amount of stego object which more or equal to its threshold. Furthermore, stego objects were imperceptible and robust.

Kata Kunci : Steganography; Spread spectrum; Shamir’s Secret Share; MP3.