Dani Rahardjo, Dani
Magister Ilmu Komputer, Universitas Budi Luhur

Published : 2 Documents
Articles

Found 2 Documents
Search

Prototipe Sistem Informasi Geografis Fasilitas Kesehatan di Kota Cirebon Berbasis Web Rahardjo, Dani; Warkim, W
Jurnal Teknik Informatika dan Sistem Informasi Vol 1 No 3 (2015): JuTISI
Publisher : Maranatha University Press

Show Abstract | Original Source | Check in Google Scholar | Full PDF (1805.875 KB)

Abstract

In the development of health need the data and information system that is integrated with both the development process so that health facilities can be optimized and the right target. One information system that can be used in the development of health facilities in the city of Cirebon is a geographic information system (GIS). And one of the software to build applications GIS is an Arcview and AlovMap. ArcView software is one of the software (tools) GIS and mapping was developed by ESRI (Environmental Systems Research Institute, Inc). ArcView has the ability to do data visualization, data exploration, the query (both spatial and non-database spatial), analyze the data geographically, and so forth. And AlovMap (including open source software) is a portable application WebGIS Java-based publication that is used to Raster and vector data on the Internet. Excess geographic information system facilities in the city of Cirebon AlovMap use is open source and are cheaper and have the ability to support the visualization of information in decision making. This system can produce a map of the output of these pharmacies, laboratories and hospitals. Utilization of GIS for health facilities that was built is extraordinary in integrating between science, technology and health. Keywords— Arcview, Alowmap, Geographic information system, Health of facilities, Overlay, Shortest path.
Aplikasi Pengamanan Data Menggunakan Algoritma Steganografi Discrete Cosine Transform dan Kriptografi AES 128 BIT pada SMK PGRI 15 Jakarta Rahmawati, Rika; Rahardjo, Dani
Jurnal Teknik Informatika dan Sistem Informasi Vol 2 No 1 (2016): JuTISI
Publisher : Maranatha University Press

Show Abstract | Original Source | Check in Google Scholar | Full PDF (765.952 KB)

Abstract

SMK PGRI 15 Jakarta has a lot of important documents such as financial reports, document collaboration and other important papers. Document security is still not done correctly so that the stored information is still very vulnerable to unknown, retrieved and manipulated by parties who are not entitled to that information. One way that information safe is to use steganography techniques. So the objective of this thesis is to build desktop-based applications to secure the data (information) in order to be secret by inserting secret messages that have been encrypted in the form of an image file. Steganography algorithm used is DCT (Discrete Cosine Transform). Data that has been inserted into the previous image is already in encrypted with 128 bit AES algorithm, so that data confidentiality is guaranteed. Based on the results of experiments conducted in this study, File Embedded processors who do have an average completion time of 432.3 seconds, and managed to get a good quality Steganography with the average value of the relatively small MSE of 1.38 dB and flat -rata PSNR of 47.66 dB. While the process Extract Files that do have an average completion time of 139,6detik, as well as the success rate of 100%. By using Steganography DCT (Discrete Cosine Transform) and Cryptographic techniques AES (Advanced Encryption Standard) 128 bit is very helpful in maintaining the confidentiality of documents that are not easily read by people who are not entitled to the document. So the security issues faced by SMK PGRI 15 Jakarta can be resolved.