Judul: Analysis of Perception and Carrying Capacity of Bogor  Botanical Gardens in the New Normal Era of COVID-19
Abstrak: Pemerintah Indonesia mengeluarkan kebijakan new normal demi menjaga keberlanjutan berbagai sektor, salah satunya sektor pariwisata. Pelonggaran kebijakan berdampak pada kenaikan jumlah wisatawan di Kebun Raya Bogor secara tiba-tiba. Hal tersebut memberikan potensi negatif terhadap kerusakan lingkungan dan kelestarian sumber daya alam di Kebun Raya Bogor. Tujuan dari penelitian ini adalah 1) Mengidentifikasi persepsi wisatawan terhadap kenyamanan berwisata ke Kebun Raya Bogor di era new normal COVID-19; 2) Mengestimasi kapasitas daya dukung Kawasan Kebun Raya Bogor; dan 3) Merumuskan strategi pengeloaan kawasan wisata Kebun Raya Bogor di era new normal COVID-19. Hasil penelitian menunjukan bahwa Kebun Raya Bogor mendapatkan rataan nilai sebesar 3,34 atau mendapatkan persepsi positif akan kenyamanan saat melakukan kegiatan wisata di Kebun Raya Bogor di era new normal. Pada perhitungan daya dukung wisata, Kebun Raya Bogor secara keseluruh tidak mengalami over carrying capacity Berdasarkan analisis QSPM, melakukan penyuluhan atau sosialisasi mengenai kesadaran dalam pelestarian lingkungan wisata merupakan strategi prioritas dalam pengelolaan Kebun Raya Bogor di era new normal., The Indonesian Government has implemented a new normal policy to ensure the sustainability of various sectors, including the tourism sector. The relaxation of this policy has led to a sudden increase in the number of tourists at Bogor Botanical Gardens. This poses a potential negative impact on environmental damage and the conservation of natural resources in Bogor Botanical Gardens. The objectives of this research are: 1) to identify tourists' perceptions of comfort while visiting Bogor Botanical Gardens in the new normal era of COVID-19; 2) to estimate the carrying capacity of the Bogor Botanical Gardens area; and 3) to formulate management strategies for Bogor Botanical Gardens in the new normal era of COVID-19. The research results show that Bogor Botanical Gardens received an average score of 3.34, indicating a positive perception of comfort when engaging in activities at the gardens during the new normal era. In terms of tourist carrying capacity calculations, Bogor Botanical Gardens as a whole does not exceed its carrying capacity. According to the QSPM analysis, providing education or raising awareness about environmental conservation in tourism is a priority strategy for managing Bogor Botanical Gardens in the new normal era.
Keyword: physical carrying capacity (PCC), QSPM, skala likert, strategi pengelolaan

Judul: Analisis Dampak Ekonomi Dan Sistem Pengelolaan Wisata Kebun Raya Bogor Di Masa Pandemi Covid-19
Abstrak: Dalam rangka mengurangi penyebaran Covid-19, pemerintah mulai memberlakukan Pembatasan Sosial Berskala Besar (PSBB). Kebijakan PSBB memberikan pengaruh terhadap sektor perekonomian di Indonesia khususnya pada sektor pariwisata termasuk kegiatan wisata di Kebun Raya Bogor (KRB). Kebijakan PSBB menyebabkan wisata Kebun Raya Bogor tutup selama bulan Maret hingga Juni 2020 dan kembali dibuka pada era new normal yaitu pada 7 Juli 2020 namun dengan adanya pembatasan. Terdapat tantangan yang dihadapi oleh pihak pengelola KRB dalam penetapan kebijakan di era new normal. Tujuan penelitian ini yaitu (1) menganalisis sistem pengelolaan wisata Kebun Raya Bogor di masa pandemi, (2) menganalisis dampak ekonomi yang timbul sebelum dan ketika pandemi Covid-19 di objek wisata Kebun Raya Bogor, dan (3) menyusun strategi pengembangan wisata Kebun Raya Bogor pasca pandemi Covid-19. Metode yang digunakan adalah analisis deskriptif, metode Loss Of Earnings dan Analytical Hierarchy Process (AHP). Hasil penelitian ini menunjukkan bahwa adanya perubahan sistem pengelolaan KRB yaitu KRB yang dikelola oleh LIPI, bermitra dengan pihak swasta dengan sistem self financing. Pandemi Covid-19 menyebabkan menurunnya pendapatan unit usaha dan tenaga kerja di Kebun Raya Bogor. Alternatif strategi pengembangan yang dapat diprioritaskan oleh pihak pengelola berupa peningkatan SDA dan SDM.
Keyword: Analytical Hierarchy Process, Loss Of Earnings, New Normal, Pariwisata, Pembatasan Sosial

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