Judul: Media Sosial Interpretasi untuk Mendukung Kegiatan Ekowisata di Taman Nasional Ujung Kulon
Abstrak: Taman Nasional Ujung Kulon (TNUK) sebagai kawasan konservasi dan situs warisan dunia memiliki sumberdaya yang berpotensi untuk dijadikan daya tarik wisata. Kegiatan wisata di TNUK seharusnya didasarkan pada konsep ekowisata dengan kegiatan interpretasi sebagai perwujudan prinsip pendidikan bagi masyarakat. Media sosial sebagai media yang populer digunakan oleh banyak orang, juga memiliki potensi sebagai media interpretasi. Penelitian ini dilakukan untuk mengembangkan desain media sosial interpretasi guna mendukung ekowisata di TNUK. Hasil penelitian menunjukan bahwa TNUK memiliki berbagai potensi biologis, geologis, dan budaya untuk kegiatan interpretasi. Media sosial yang paling banyak digunakan oleh pengunjung TNUK adalah Facebook, yang juga merupakan salah satu media sosial terbaik dengan tujuan komunikasi sehingga memiliki potensi sebagai media sosial interpretasi. Hasil ujicoba menunjukkan bahwa media sosial dapat digunakan sebagai media sosial interpretasi dan pesan yang disampaikan dalam ujicoba dinyatakan bermanfaat dalam meningkatkan pengetahuan pengguna media sosial tentang TNUK (>75% responden). Dengan demikian, media sosial dapat mendukung kegiatan ekowisata di TNUK dengan memperkenalkannya kepada pengunjung.
Keyword: ekowisata, interpretasi, media sosial, taman nasional ujung kulon

Judul: Hubungan media promosi dengan keberhasilan ekowisata Taman Nasional Ujung Kulon
Abstrak: Ekowisata merupakan suatu konsep pariwisata yang mencerminkan wawasan lingkungan dan kelestarian lingkungan. Media promosi yang dapat digunakan untuk mempromosikan ekowisata adalah Website, facebook, twitter, google, poster, brosur, roll up banner dan lainnya.Tujuan penelitian ini adalah untuk menganalisis pentingnya media promosi terhadap perkembangan ekowisata TNUK (Taman Nasional Ujung Kulon). Penelitian ini menggunakan metode survey dengan jumlah responden 50 pengunjung. Penentuan responden dalam penelitian ini dengan menggunakan teknik accidental sampling. Hasil menunjukkan bahwa keberhasilan ekowisata TNUK berhubungan nyata dengan pesan media promosi pada aspek attention, interest dan desire, sedangkan pada aspek action tidak berhubungan nyata. Kekuatan pesan media promosi leaflet yang berhubungan nyata adalah aspek interest, desire, dan action, sedangkan aspek attention tidak berhubungan nyata. Kekuatan pesan media promosi facebook yang berhubungan nyata hanya pada aspek action. Kekuatan pesan media promosi poster yang berhubungan nyata dengan keberhasilan ekowisata TNUK adalah pada aspek attention dan interest, sedangkan pada aspek desire dan action tidak berhubungan nyata., Ecotourism is a concept that reflects the insights of environmental tourism and environmental sustainability. Media campaigns that can be used to promote ecotourism is website, facebook, twitter, google, adwords, posters, flyers, roll up banners, direct mail, t-shirts, hats, key chains, and pins. The purpose of this study was to analyze the importance of the media campaign against the development of ecotourism Ujung Kulon National Park. This study used a survey method with the number of respondents 50 visitors ecotourism UKNP (Ujung Kulon National Park). Determination of the respondents in this study by using accidental sampling technique. The results showed that the success of ecotourism UKNP significantly correlated with the promotion of media messages on aspects of attention, interest and desire, while the action aspect is not significantly correlated. The power of media messages related promotional leaflets are aspects of real interest, desire, and action, while not significantly correlated aspects of attention. The power of facebook promotion media messages related only to the aspects of the real action. The power of media messages related promotional poster with the success of ecotourism UKNP real is the aspect of attention and interest, while the aspect of desire and action are not related.
Keyword: Keberhasilan Ekowisata, Media Promosi

Judul: Algorithm Construction of HLI Hash Function
Abstrak: Cryptography is a study of mathematical techniques related to aspects of information security regarding on confidentiality, data integrity, entity authentication, and data origin authentication. Data integrity is a service, which is associated with the conversion of data carried out by unauthorized parties. To maintain data integrity, one can use hash functions. An hash function is a computationally efficient function to map an arbitrary length bitstring to a fixed length bitstring called as hash value. The use of hash function in maintaining the information integrity and authentication is in digital signatures, virus protection, and software distribution. Illustration of the hash function in the integrity and authentication of information that is emailed as follow. The sender sends the information and hash value to the recipient. If the hash value of the information is equal to the hash value that is sent by the sender, then information has not been changed. Otherwise the information has been changed. An hash function has two properties, one way and collision resistance. An hash function is called one way if it is computationally infeasible to find any input such that when given any hash value . Meanwhile an hash function is called collision resistant if it is computationally infeasible to find any two inputs where such that . The purpose of this study is to construct a HLI hash function algorithm, to analyze the speed and security of the hash functions as a results of construction. Furthermore, it is to compare it with SWIFFT. Hash function is constructed based on the result of algebraic operations on modular polynomial ringwith . Modular polynomial ring noted as is a set of all polynomials of degree at most with coefficients in . can be represented as a set of integer vector of modulo in dimension . So, it is simple to implement in a computer. In vector operations, is lattice . Furthermore, alattice that is defined from certain polynomial ring is called ideal lattice. HLI hash function is consists of addition and multiplication algorithm in the ring. Addition algorithm consists of sumation operations of modulo and multiplication consists of multiplication operations of modulo . Generally, algorithm of HLI hash function consists of multiplication operations of modulo and addition operations of modulo . However, if the input is binary number then multiplication algorithm only consists of multiplication operation of modulo , so algorithm of HLI hash function consists of multiplication operations of modulo and addtion operations of modulo . An hash function is secured if it has two properties, i.e., one way and collision resistance. HLI hash function hash is one way, it is following the proof of Micciancio. It is has collision resistant because of polynomial is irreducible over and monic. Moreover, it is proved that for every unit vector , the vector is small vector. If the input of hash function is a binary number then HLI hash function only involves addition operations of modulo . So the time that used almost same with SWIFFT. The excellence of HLI hash function is the key size smaller than SWIFFT. This effect on
Keyword: hash function, modular polynomial ring, lattice