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ITS » Non Degree » T.Elektronika - PENS
Posted by wono at 13/01/2010 09:08:32  •  3778 Views


DATA HIDING STEGANOGRAPH PADA FILE IMAGE MENGGUNAKAN METODE LEAST SIGNIFICANT BIT

DATA HIDING STEGANOGRAPH ON IMAGE FILE WITH LEAST SIGNIFICANT BIT METHOD

Author :
Maulana, Ahmad Mansur 




ABSTRAK

Dengan semakin populernya media digital perhatian pada tingkat keamanan menjadi semakin penting. Salah satu isu penting adalah tingkat keamanan pengiriman suatu informasi. Hal ini dapat dilakukan dengan menggunakan enkripsi atau steganography. Steganography merupakan suatu metode untuk menyisipkan potongan sebuah informasi rahasia dalam suatu objek media lain. Dalam steganography dikenal data hiding atau data embedding yaitu penyembunyian data yang nampak sangat familiar dengan kriptografi. Namun data hiding dalam steganography dan kriptografi sangat berbeda. Jika pada kriptografi data yang telah disandikan ciphertext tetap tersedia maka dengan steganography ciphertext dapat disembunyikan sehingga pihak ketiga tidak mengetahui keberadaannya. Dalam proyek akhir ini media yang diajukan adalah penggunaan media image seperti pada file-file JPG GIF dan BMP sebagai data masukan media pembawa pesan rahasia carrier file. Dengan menggunakan metode Least Significant Bit diharapkan nantinya kualitas image yang dihasilkan dari proses embeding data tidak akan terlalu berkurang secara signifikan. Selain itu untuk lebih merampingkan ukuran data digunakan algoritma zip compression dan agar menjaga data lebih aman digunakan algortima enkripsi DES. Metode proyek akhir ini membuktikan suatu teknik penyembunyian pesan rahasia dalam media image. Setelah melalui proses embeding data ouput image hasil dari proyek akhir ini tidak mengalami penurunan kualitas. Begitu juga untuk proses pengekstrakan kembali dari berkas stego informasi rahasia dapat diungkapkan kembali tanpa mengalami kerusakan sedikitpun.


ABSTRACT

With the popular of digital media the attention on the level of security will become more important. One important issue is the level of information security. This can be done by using encryption or steganography. Steganography is a method to insert a snippet of information in an object of other media. In the steganography known as data hiding is embedding the data seems very familiar with cryptography. However data hiding in steganography and cryptography are very different. If in cryptography data that has been encypted ciphertext remains available then with steganography ciphertext can be hidden so that third parties do not know exists. In this final project the proposed method is the use of media such as image files in JPG GIF and BMP as input data of the media messages secret. By using the method of Least Significant Bit is expected on image quality resulting from the process embeding data will not be reduced significantly too. To streamline the size of the data used zip compression algorithm and to ensure that the data more secure used DES encryption algorithm. Method of this final project is proving a secret message hiding techniques on image media. Once through the process embeding data image ouput of this project did not experience a decrease in quality. Similarly to the process extracting back from stego files confidential information may be disclosed again without having a bit of damage.



Keywordskriptografi, data hiding, steganography, image, LSB, zip compression, DES
 
Subject:  STEGANOGRAPH
Contributor
  1. ISBAT UZZIN NADHORI, S.Kom
    DWI KURNIA BASUKI, M. Kom
Date Create: 13/01/2010
Type: Text
Format: pdf
Language: Indonesian
Identifier: ITS-NonDegree-3100009036539
Collection ID: 3100009036539
Call Number: RSEP 005.82 Mau d


Source
Informatical Engineering, RSEP 005.82 Mau d, 2009

Coverage
ITS Community

Rights
Copyright @2009 by ITS Library. This publication is protected by copyright and permission should be obtained from the ITS Library prior to any prohibited reproduction, storage in a retrievel system, or transmission in any form or by any means, electronic, mechanical, photocopying, recording, or likewise. For information regarding permission(s), write to ITS Library




[ Download - Open Access ]

  1.  ITS-NonDegree-7491-7406030017-kesimpulan.pdf - 59 KB




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