HIBRID KRIPTOGRAFI DAN STEGANOGRAFI MENGGUNAKAN RSA DAN AMELSBR

EKO IBRAHIM AHMAD, 1217051024 (2016) HIBRID KRIPTOGRAFI DAN STEGANOGRAFI MENGGUNAKAN RSA DAN AMELSBR. FAKULTAS MATEMATIKA DAN ILMU PENGETAHUAN ALAM, UNIVERSITAS LAMPUNG, Universitas lampung.

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Abstrak

The security is one important issue in sending a secret message. In this case, cryptography will serve to encrypt a secret message into irregular form and steganography will hides the message irregularly into the media image, which will produce a double security in sending secret messages. In this research, we build a web-based hybrid system cryptography and steganography using RSA and AMELSBR. The media container is an image with format file type (.jpg) which serves as input (cover image), and the image with format file type (.png) which serves as output (stegoimage). The data that can be inserted in cover image is a file with format file type (.txt). The result of this research is that the RSA method and AMELSBR successfully encrypt and hide a secret message into image, and successfully restoring the irregularly message into original message. The AMELSBR method has the greatest possibility in returning of the file on the manipulation of brightness and contrast if the cover in monochrome or grayscale quality. The manipulation of cropping stegoimage which taken place on the right and bottom have smaller risk of data loss based on the scale of crops and image resolution. Furthermore, one of the communication lines of social media that is safe to use without any damage on the delivery stegoimage is the application of BBM (BlackBerry Messenger) with HD (high definition) image quality. Keywords: hybrid, cryptography, steganography, RSA, AMELSBR.

Tipe Karya Ilmiah: Skripsi
Subyek: Q Science (General)
Program Studi: Fakultas MIPA > Prodi Ilmu Komputer
Depositing User: 9314736 . Digilib
Date Deposited: 07 Dec 2016 04:29
Last Modified: 07 Dec 2016 04:29
URI: http://digilib.unila.ac.id/id/eprint/24599

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