Judul: Agrotourism Landscape Planning as an Agrotourism Support based on New Normal in Jambu Village Tourism Area, Kediri Regency East Java
Abstrak: Desa Wisata Jambu merupakan desa yang memiliki sektor pertanian yang menjadi sumber penghasilan utama bagi warganya. Desa Wisata Jambu menjadi salah satu desa yang terdampak akan pandemi COVID-19, sehingga menurunkan aktivitas wisatawan. Oleh karena itu, diperlukan perencanaan lanskap berbasis new normal terhadap wisata pendukung di Desa Wisata Jambu. Tujuan penelitian ini yaitu (1) mengidentifikasi karakteristik dengan memperhatikan aspek fisik dan biofisik, sosial budaya, potensi pengembangan agrowisata, dan new normal di Desa Wisata Jambu untuk pengembangan agrowisata, (2) menganalisis dan mensintesis potensi dan kedala pengembangan agrowisata Kawasan Desa Wisata Jambu, dan (3) menyusun landscape plan Desa Wisata Jambu sebagai kawasan agrowisata berbasis era new normal pandemi COVID-19. Metode yang digunakan yaitu dengan tahapan persiapan, invetarisasi, analisis, sintesis, dan perencanaan. Berdasarkan analisis wisata pendukung Spillane (1994), menunjukkan terdapat objek wisata yang dapat dijadikan wisata pendukung yaitu Kebun Bibit. Konsep pengembangan agrowisata yang digunakan yaitu dengan mengoptimalkan tanaman pertanian dan perkebunan lokal serta mengembangkan potensi sumberdaya alam secara optimal dan berkelanjutan. Selain itu, konsep wisata pendukung menyesuaikan dengan kondisi era new normal dengan menambahkan fasilitas new normal dan memperhatikan sirkulasi yang digunakan baik pengunjung atapun masyarakat Desa Jambu agar aktivitas pada setiap ruang dapat dibatasi. Hasil dari penelitian ini berupa rencana lanskap agrowisata Desa Wisata Jambu yang terbagi dalam ruang agrowisata yang meliputi ruang utama agrowisata, ruang pendukung agrowisata, ruang konservasi, ruang masyarakat, ruang penyangga dan ruang produksi., Jambu Tourism Village is a village that has an agricultural sector which is the main source of income for its citizens. Jambu Tourism Village is one of the villages affected by the COVID-19 pandemic, thereby reducing tourist activity. Therefore, it is necessary to plan a new normal-based landscape for supporting tourism in Jambu Tourism Village. The objectives of this study are (1) to identify the characteristics by taking into account the physical and biophysical, sociocultural aspects, the potential for agro-tourism development, and the new normal in the Jambu Tourism Village for agro-tourism development, (2) to analyze and synthesize the potential and constraints of agrotourism development in the Jambu Tourism Village Area, and (3) compiling a landscape plan for the Jambu Tourism Village as an agro-tourism area based on the new normal era of the COVID-19 pandemic. The method used is the stages of preparation, inventory, analysis, synthesis, and planning. Based on the analysis of supporting tourism, Spillane (1994) shows that there are tourist attractions that can be used as supporting tourism, namely the Nursery. The concept of agro-tourism development used is by optimizing crops and local plantations as well as developing the potential of natural resources optimally and sustainably. In addition, the idea of supporting tourism adapts to the conditions of the new normal era by adding new normal facilities and paying attention to the circulation used by both visitors and the people of Jambu Village. So that, activities in each space can be limited. The results of this study are Jambu Village agrotourism landscape plan which is divided into agrotourism area which includes the main agrotourism area, agrotourism support area, conservation area, community area, buffer, and production area.
Keyword: agrotourism, Jambu Village, new normal era, landscape planning, supporting tourism

Judul: Perencanaan Lanskap Agrowisata berbasis New Normal Pandemi COVID-19 di Desa Canggu Kabupaten Kediri Jawa Timur
Abstrak: Desa Canggu merupakan salah satu desa yang terdaftar secara resmi sebagai desa wisata di Kecamatan Badas. Luas lahan pertanian yang dimiliki sebesar 427,91 ha dan lahan non-pertanian sebesar 218,59 ha. Sumber penghasilan utama masyarakat Desa Canggu berasal dari sektor pertanian dan perikanan. Penduduk Desa Canggu juga telah memasarkan produk-produk lokal hasil pertanian maupun perikanan. Mempertimbangkan hal tersebut, Desa Canggu memiliki potensi yang cukup besar untuk dikembangkan sebagai kawasan agrowisata. Perencanaan yang lebih terintegrasi diperlukan untuk mewujudkan kawasan wisata berkelanjutan yang dapat beradaptasi di era new normal. Tujuan dari penelitian ini adalah untuk menganalisis kesesuaian kawasan untuk agrowisata dan membuat perencanaan lanskap untuk mendukung pengembangan agrowisata. Analisis menerapkan metode spasial dan kualitatif pada aspek fisik dan biofisik, dan aspek-aspek lainnya terkait perencanaan agrowisata berbasis new normal. Hasil penelitian ini terdiri dari rencana ruang, rencana sirkulasi, rencana vegetasi, rencana aktivitas dan fasilitas, dan rencana daya dukung. Ruang yang direncanakan meliputi ruang agrowisata, pendukung wisata, penyangga, dan konservasi. Sirkulasi yang direncanakan meliputi sirkulasi primer, sekunder, tersier agrowisata, dan tersier masyarakat. Vegetasi yang direncanakan meliputi vegetasi produksi, estetika, penyangga, dan konservasi. Rencana fasilitas dibuat berdasarkan ruang dan aktivitas yang telah ditentukan. Aktivitas yang dilakukan dalam kawasan meliputi aktivitas aktif, semi-aktif, dan pasif.
Keyword: agritourism, landscape planning, new normal, Canggu Village

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