Judul: Persepsi dan Preferensi Pengunjuung terhadap Media Interpretasi di Batu Secret Zoo, Jawa Timur Park 2
Abstrak: Persepsi dan preferensi pengunjung terhadap media interpretasi memengaruhi informasi yang didapatkan oleh pengunjung. Penelitian bertujuan mengidentifikasi karakteristik pengunjung, jenis-jenis media interpretasi, serta menentukan persepsi dan preferensi pengunjung terhadap media interpretasi di Batu Secret Zoo (BSZ), Jawa Timur Park 2. Metode yang digunakan yaitu survei pendahuluan, observasi lapangan, dan wawancara menggunakan kuesioner terhadap 100 pengunjung yang sudah mengelilingi BSZ dan panduan wawancara kepada satu narasumber (pengelola BSZ). Uji chi-square dilakukan untuk menentukan hubungan antara preferensi dengan karakteristik responden. Hasil menunjukkan karakteristik responden didominasi kelas umur 12-16 (41%) dengan tujuan edukasi. Persepsi terhadap media interpretasi signboard sudah relevan (40%) sedangkan preferensi pengunjung yaitu media interpretasi signboard (37%) yang menyajikan status konservasi. Hanya 2% responden yang mendapatkan pengetahuan mengenai kelangkaan, sementara media interpretasi berfungsi sebagai pengenalan status konservasi terutama satwa asli Indonesia. Preferensi media interpretasi tidak berhubungan dengan karakteristik.
Keyword: Batu Secret Zoo, media inerpretasi, persepsi, preferensi

Judul: Visitor Perceptions of Priority Herpetofauna Animals at Batu Secret Zoo, Malang, East Java
Abstrak: Perdagangan hewan bisa menjadi masalah serius bagi kelangsungan hidup terutama hewan yang telah masuk dalam daftar spesies yang terancam punah. Salah satunya adalah herpetofauna, dimana dalam takson herpetofauna terdapat empat spesies yang masuk dalam 25 satwa prioritas berdasarkan IUCN Red List, Appendix CITES, serta status perlindungan menurut Pemerintah Indonesia. Perdagangan herpetofauna ini telah meningkat selama dekade terakhir. Herpetofauna dari segi estetika memang tidak menarik, namun herpetofauna memiliki nilai endemik dan nilai budaya yang tinggi. Fakta menunjukkan bahwa perdagangan ilegal terus berlanjut dan cenderung meningkat, sehingga salah satu upaya konservasi yang dapat dilakukan adalah pendidikan melalui demonstrasi satwa. Penelitian ini bertujuan untuk mengidentifikasi karakteristik pengunjung Batu Secret Zoo dan mengidentifikasi persepsi pengunjung terhadap satwa prioritas dengan menggunakan observasi, wawancara dan studi literatur. Data dianalisis menggunakan skala likert dan chi-square. Hasil penelitian menunjukkan bahwa karakteristik pengunjung terbanyak berasal dari kelompok usia 18-24 dengan persentase 30%, dengan seluruh kunjungan berasal dari pengunjung domestik. Persepsi pengunjung terhadap pelestarian empat satwa prioritas yaitu buaya, komodo, penyu, dan kura-kura moncong babi adalah positif, dengan hasil analisis Likert menunjukkan nilai rata-rata tinggi dan sangat tinggi dengan persentase terbesar yaitu 95%. Karakteristik responden yang memiliki hubungan atau pengaruh satu sama lain dengan persepsi pengunjung adalah jumlah tanggungan keluarga dan pekerjaan. Kata kunci: Batu Secret Zoo, Persepsi, Satwa prioritas, Animal trade can be a serious problem for survival especially animals that have been included in the endangered species list. One of them is the herpetofauna, where there are four species in the herpetofauna taxon that are included in the 25 priority animals based on the IUCN Red List and CITES Appendix, as well as protection status according to the Government of Indonesia. However, this herpetofauna trade has increased over the last decade. Herpetofauna from an aesthetic standpoint is indeed unattractive, but herpetofauna has endemic value and high cultural value. The facts show that illegal trade continues and tends to increase, so one of the conservation efforts that can be carried out is education through animal demonstrations. This study aims to identify the characteristics of visitors at Batu Secret Zoo and identify visitors' perceptions of priority animals by using observation, interviews and literature studies. Data were analyzed using a Likert scale and chi-square. The results showed that the characteristics of most of the visitors came from the age group of 18-24 with a percentage of 30%, with all of visits are dominated by domestic visitors which shows 100%. Visitors' perceptions of the preservation of the four priority animals crocodile, komodo, turtle, and pig-nosed turtlr is positive, with the results of the Likert analysis showing high and very high average values with the largest percentage of 95%. Characteristics of respondents who have a relationship or influence each other with the perception of visitors is the number of family dependents and occupation. Keywords: Batu secret zoo, perception, priority animals
Keyword: Batu Secret Zoo, Perception, Priority animals

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