Query: Journal of Information Systems
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Keamanan Data Transaksi Nasabah Pada Aplikasi Bank Sampah Berbasis Web Menggunakan Algoritma AES
Full text linkThe Malacca waste bank located in East Jakarta was established in 2008, the Malacca waste bank has a number of customers reaching more than 300 people and the waste absorbed every month reaches 2 - 2.5 tons. In carrying out its activities, the Malacca Sari waste bank still has several problems, including: the difficulty of recording the income of waste, the lack of integrity between the customer's savings book and the garbage bank's bookkeeping and the customer often does not carry a savings book, and even something is missing, to anticipate this and improve the services of the garbage bank, we need an application for processing data effectively and efficiently, which can have a secure data storage system and complement the application with good security techniques. In this case the researcher uses the cryptographic algorithm (Advanced Encryption System). With this application, it is expected that transaction data information stored in the application will be safe and not known to eavesdroppers or irresponsible parties. In this application, the encrypted information is only in the form of balance data at a garbage bank and only the management and customers can use this application. Based on program implementation and testing, researchers can conclude that this application is easy to use, the confidentiality of data and information able to maintain and protect Keywords : AES (Advanced Encryption System), MySQL, Cryptographic, Php, Waste Bank
Implementasi Algoritma Affine Cipher untuk Keamanan Data Teks
Full text linkThe development of computer technology nowadays has progressed very rapidly in line with the development of computer and telecommunication technology, making communication more open and information exchange faster, however not all developments in communication technology have had a positive and beneficial impact. One of the negative impacts of technological development is the existence of wiretapping, with the presence of encrypted tapping, the security aspect in exchanging important information. The problem of sending messages (e-mail), be its agencies, education, government, private and others, must contain confidential information, so encryption of the message is required. Encryption of information is important to support information security, because it can guarantee message security. Therefore, encryption is needed by users who have information that is guaranteed its confidentiality. One way to store data sent via email is to use cryptography. The Affine Cipher is an extension of the Caesar Cipher which multiplies the plaintext by a value and adds a shift. Creating an application by implementing cryptography using the Affine Cipher is one way of maintaining the confidentiality of information and is very important. The results obtained from this research are that the application created can change the content of existing messages and can store information that is available when sending e-mails. The process of encoding messages using the Affine Cipher algorithm is successfully used to hide secret messages into text. Keywords: Implementation, algorithm, affine cipher, data
Implementasi Sistem Penjualan Alat Laboratorium Menggunakan Metode Waterfall Berbasis Web
Full text linkThis study aims to implement the laboratory sales system in Indonesia, especially in terms of the obstacles we face when selling. The analysis this time we use qualitative, where the process also uses the sales data input system from other laboratories using the waterfall method. The results of this analysis indicate that the implementation constraints of the laboratory equipment sales system have two systems, namely the online and offline system. The online system uses an order via the web, then order goods online. Meanwhile, the offline system must come directly to the store and order directly and input the system manually. This is what hampers a sales system to input sales results offline and the system will be developed automatically using the web so that sales increase.Keywords: Web, Waterfall, Sales System.
Implementasi Monitoring Jaringan Berbasis Web Terintegrasi Cacti Menggunakan Notifikasi Telegram
Full text linkImproving the quality of services on the network must be implemented and run easily in every institution, school, home, or other place that uses a computer network as an important means. One appropriate way is to find out network disruptions that occur in a fast time period, so that the interference can be overcome without needing a long time. Knowing the disruption that occurs in a faster time period is not easy if done the old way, that is network users realize that the network is not connected and report it to the network technician. After receiving the report the damaged network will be repaired. With a web-based system that is integrated with cacti, it can monitor and provide information via telegram messages in real time. The technician will immediately fix the disruption that occurred before the report from the user, so that network disruptions that occur will not last long. Keywords : cacti, web, telegram, networkin
Analisis Pengamanan Jaringan Pada Protokol IPv6 Menggunakan Multi-Layer IPSec
Full text linkSecurity is an important aspect in computer network operations. To support, computer network security, various security methods have been developed, both in application level security, such as Pretty Good Privacy (PGP), end-system level security, such as Socket Secure Layer (SSL), direct-link level security such as Multi Protocol Level Switching (MPLS) and IP layer security such as IP Security (IPSec). IPSec is a collection of protocols for securing networks through authentication and IP packet encryption. On the other hand, Internet Protocol Version 4 (IPv4) as a network protocol is not safe enough and is no longer able to serve the needs of new IP addresses around the world, and will soon be replaced with IPv6. Therefore, it is necessary to examine various security methods that can be developed in IPv6. In this study, the author will analyze the Multi-Layer IPSec in securing IPv6 networks.Keywords: IPv6, IPSec, Multi-Layer IPSec
Aplikasi Penentuan Penerbit Buku Sekolah Terbaik Dengan Menggunakan Metode Topsis Berbasis Web
Full text linkThe book is the result of analysis of knowledge made in writing. Books are important for students who are studying in school, so it is important for schools choose the right books so that students can be given the right knowledge. In this era of modern times as many books are spread with all kinds and kinds of topics and of course with different publishers as well, therefore choosing a quality book is a key to bringing students to become qualified students. Because of the large number of book publishers available, schools find it difficult to determine a quality standard book. So in this problem the Topsis method was created to determine the best school book publishers. This Topsis method can help the school to make the right and accurate results, so that it can reduce the problems that exist in the school. Using web based application, it is certainly easier to access, to choose the best school books publishers.Keywords: Web, Best Book Publishers, Topsis, Decision Support Systems
Aplikasi Edit Foto Background Dengan Menggunakan Metode K-Means Clustering
Full text linkBackground photos become one of the most important things in every human activity. Where each background color contains its own meaning, depending on when the conditions where we use the background color. The background color is indispensable in the interests of humans in all matters relating to administration, for example, in the scope of work, school, and others. The background color change can be done by clustering the image. The initial stage done in changing the background color is to cluster the image first so that the background object can be found. In this study, the authors apply the k-means method to divide the objects into several parts. In this application before changing the background color we have to determine the number of clusters first, then the background color is changed according to the desired cluster. This application is designed using Matlab version 2010a. Test results ten images can be concluded that the success of background color changes can be done with a background that has one color while the background that has different colors can not change.Keywords: Image, Background, K-means, Clustering, Processing Image, Matlab 2010a
Media Interaktif Pengenalan Angka Dengan Jari Tangan Menggunakan Metode PCA (Principal Component Analysis)
Full text linkIn computer science image processing, the scope of its development is very rapid, not only used on images, but also with the introduction of a video. Finger number recognition has now been developed for many applications and to help solve problems. The use of the hand as an identifier has many benefits, especially its practicality. The main problem is a camera that represents an image consisting of a relatively large size vector. There are many techniques to reduce the dimensions of the video or camera that will be processed, one of which will be discussed here is to implement interactive learning of numerical recognition with a finger, in the number recognition application with this finger will be detected the shape of the hand that can be captured by the camera which will identify a name (number). In designing this application, the author uses Visual Studio 2010 with the C sharp programming language (C#).Keywords: Hand recognition, interactive media, Principal Analysis Component
Perancangan Database Point of Sales Apotek Dengan Menerapkan Model Data Relasional
Full text linkDatabase design is a process of designing data needed to support various system designs. The benefit of a database in Point of Sales drug sales in the Jogja Pharmacy enables storing, changing and returning all data quickly and easily. Problems in database design are different viewpoints from the designer, programmer and end-user. Because of that, the design is needed a methodology the process of designing a good database starting from procedures, techniques, tools and documentation. The database planning method used in Research and Development (R & D) and the database design method uses the Database Life Cycle (DBLC) variable research is POS pharmacy. Research aspects include requirement analysis, conceptual design, logical design and physical design. The final result of this research is to create 8 types of conceptual consists of drugs, drugs, customers, stores, users, detailed details, and temporary details.Keywords: database, apotek, POS, DBLC, relational data
Signal Analysis of Remote Control (RC) UAV Used Software Defined Radio (SDR) HackRF One
Full text linkUAV (Unmanned Aerial Vehicle) is the unmanned aircraft which is controlled by Remote Control (RC) when flying. The operation of the UAV needs to be regulated to maintain air traffic security, one of which is by taking over the UAV. This study discussed the FSK modulation and demodulation mechanism in the process of taking over the UAV with HackRF One. The transfer mechanism of the UAV that done is to look for the RC frequency, channels, record the RC signals, determine the period and frequency carriers, and modelling the modulation and demodulation of FSK with Simulink. One parameter that is set in the process of this mechanism is to change the value of the different carrier frequencies. Then, the data obtained from the signal sent modulated results are the same as when the demodulated signal. Of T0= 79 μsandT1= 70 μs, so that fc0= 12658,22 Hz and fc1= 14285,71 Hz. To determine the size of the signal quality, it is necessary to determine the Bit Error Rate (BER) value. In this research, the obtained the BER values depend on the change of the energy value of Bit per Noise (Eb / No). When the Eb/No value is 10 (dB), then the BER is 0.038. Moreover, when the Eb/No value are 8 and 6 (dB), then the BER will be 0.078 and 0.23 respectively. It can be concluded that the greater Eb/No, the lower of BER.Keywords: UAV, Remote Control (RC), FSK Modulation, Simulink, HackRF One