Security and confidentiality of data or information at the present time has become an important concern. Advanced methods for secure transmission, storage, and retrieval of digital images are increasingly needed for a number of military, medical, homeland security, and other applications. Various kinds of techniques for increase security data or information already is developed, one common way is by cryptographic techniques. Cryptography is science to maintain the security of the message by changing data or information into a different form, so the message cannot be recognized.To compensate for increasing computing speeds increases, it takes more than one encryption algorithm to improve security of digital images. One way is by using algorithms to double cryptography do encryption and decryption. Cryptographic algorithm often used today and the proven strength specially the digital image is Algorithm with Chaos system. To improve security at the image then we use Additional algorithms namely Rivers algorithm Shamir Adleman (RSA) which known as the standard of cryptography algorithms.This research aims to optimize security bitmap image format by combining the two algorithms namely Chaos-based algorithms and RSA algorithm into one application. Experiments conducted show that the proposed algorithm possesses robust security features such as fairly uniform distribution, high sensitivity to both keys and plain images, almost ideal entropy, and the ability to highly de-correlate adjacent pixels in the cipher images. Furthermore, it has a large key space, and transform image to pure text file which greatly increases its security for image encryption applications. General TermsSecurity
Sektor pariwisata merupakan salah satu sektor yang memiliki potensi yang besar untuk meningkatkan pendapatan negara dan daerah. Untuk itu diperlukan upaya dalam pengembangan pariwisata di Indonesia. Salah satu program dari pemerintah untuk meningkatkan jumlah wisatawan adalah dengan memprioritaskan pembangunan pariwisata di 10 lokasi yang salah satunya adalah Pariwisata Pulau Lombok. Selain dengan pembangunan daerah pariwisata, hal lain yang dapat dilakukan untuk menaikkan jumlah wisata adalah dengan pemanfaatan teknologi informasi sebagai media promosi melalui e-tourism. Tujuan dari penelitian ini adalah untuk melihat dan menganalisa perkembangan e-tourism yang ada di Pulau Lombok sebagai salah satu cara mempromosikan pariwisata di Pulau Lombok. Teknik analisis yang digunakan pada penelitian ini adalah teknik analisis SWOT dengan melihat faktor internal (kekuatan dan kelemahan) dan faktor eksternal (peluang dan ancaman) yang berkaitan pada perngembangan e-tourism di Pulau Lombok. Hasil dari penelitian ini dapat digunakan oleh pemerintah ataupun pihak terkait dalam menentukan arah pengembangan pariwisata di Pulau Lombok.
Construction of Non-Habitable Homes (RTLH) is a government program managed by thesupervision of the Social Service (Dinas Sosial) in the form of housing construction assistancefunds for the poor. In its realization, assistance is still often found to be lacking on target. It isbecause the determination of beneficiaries is not correctly selected, and there are no standardmethods based on existing criteria. These problems require a system that can providerecommendations that conform to clear standards and use techniques that accounted. FuzzySimple Additive Weighting (SAW) method is one method used in decision making. This methodcalculates criteria to get ranking weights to support decision making. The process of selectingcriteria and determining fuzzy variables carried out as a primary process in this method. Afterthe fuzzification weight value obtained, ranking done to use as a reference in the decision makingof recipients. Based on the results of manual testing, the system made is under the effects ofmanual calculations with a level of accuracy reaching 100%, so that implemented as a basis formaking decisions. While testing, the black box system found that all the requirements tested canrun following the overall system functionality. With this recommendation system, it can help thedecision to find the recipients of the Fund for Non-Occupable Homes Construction Assistanceso that it is more targeted.
Data security in the process of information exchange is very important. One way to secure the image is to use cryptographic techniques. Cryptographic algorithms applied to the image is used to randomize the position of pixels using a secret key parameters, so that images can not be recognized anymore after the encryption process. In this study, researchers used the algorithm of chaos known as algorithms compact, fast and commonly used in cryptography especially those in the image file. The results showed the image that has been through an encryption process can not be recognized because the randomization process image pixel position is performed using chaosalgorithm.
University requires the integration of data from one system with other systems as needed. This is because there are still many processes to input the same data but with different information systems. The application of data integration generally has several obstacles, one of which is due to the diversity of databases used by each information system. Schema matching is one method that can be used to overcome data integration problems caused by database diversity. The schema matching method used in this research is linguistic and constraint. The results of the matching scheme are used as material for optimizing data integration at the database level. The optimization process shows a change in the number of tables and attributes in the database that is a decrease in the number of tables by 13 tables and 492 attributes. The changes were caused by some tables and attributes were omitted and normalized. This research shows that after optimization, data integration becomes better because the data was connected and used by other systems has increased by 46.67% from the previous amount. This causes the same data entry on different systems can be reduced and also data inconsistencies caused by duplication of data on different systems can be minimized.
Sektor pariwisata sebagai kegiatan perekonomian telah menjadi andalan potensial dan prioritas pengembangan bagi sejumlah Negara.Terlebih bagi negara berkembang seperti Indonesia yang memiliki potensi wilayah yang luas dengan daya tarik wisata yang cukup besar. Koperasi Karya Wisata Senggigi (KOPKARWIS) adalah sebuah koperasi yang bergerak dalam bidang pariwisata dengan menyediakan jasa Tour and Travel di daerah Senggigi. Masalah yang di hadapai Koperasi Karya Wisata Senggigi adalah tentang pemasaran paket-paket tour yang mereka tawarkan dan menghubungi driver/guide. Adapun tujuan dari penelitian ini, yaitu Membangun sebuah Sistem Informasi Pemasaran Paket Tour Koperasi KARYA WISATA Senggigi Berbasis Web. Perancangan dan Pembuatan Aplikasi menggunakan metodologi Waterfall, yaitu metode mengembangan perangkat lunak yang diawali dengan menganalisa kebutuhan perusahaan, membuat merancang, membangun aplikasi dengan tools, dan melakukan ujicoba pada pengguna. Hasil yang dicapai yaitu berupa Sistem Informasi Pemasaran Paket Tour Koperasi KARYA WISATA Senggigi yang dapat membantu operasional koperasi. Berdasarkan hasil quisioner yang diberikan kepada pengguna, aplikasi yang dibangun dapat dipahami dan mudah digunakan dalam memberikan informasi pemesanan serta meningkatkan pemesanan dan sesuai dengan kebutuhan pengguna. Aplikasi Sistem Informasi Pemasaran Paket Tour Koperasi KARYA WISATA Senggigi Berbasis Web telah berhasil dibangun.
Desa Batu Mekar merupakan salah satu desa di Kabupaten Lombok Barat di Kecamatan Lingsar. Desa Batu Mekar memiliki banyak produk baik berupa kerajian tangan seperti tas, hiasan lampu yang dibuat dari bahan ketak atau produk pertanian dan perkebunan seperti kopi, gula aren dan lain sebagainya. Permasalahan yang ada pada Desa Batu Mekar adalah harga penjualan produk hasil kerajinan yang rendah karena produk hanya dititipkan di toko oleh-oleh. Menurunnya jumlah penjualan ketak karena penurunan jumlah wisatawan yang berkujung di pulau Lombok akibat gempa. Selain itu, terbatasnya media promosi. Penelitian ini dikembangkan menggunakan metode Rapid Application Development. Penelitian ini menghasilkan sistem informasi penjualan online sebagai media penjualan hasil kerajinan, sehingga masyarakat dapat langsung menjual produknya tanpa melalui perantara sekaligus sebagai media promosi sehingga produk kerajinan dapat dijual secara langsung dan dapat dikenal oleh masyarakat luas. Aplikasi yang dikembangkan dapat digunakan sebagai media promosi serta sarana penjualan produk kerajinan desa Batu Mekar.
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