Judul: Analisis Manajemen penangkaran buaya pada PT Ekanindya karsa di Cikande, Kabupaten Serang
Abstrak: Pemanfaatan terhadap populasi buaya yang sangat tinggi mengakibatkan penurunan populasi hewan jenis reptilia ini dengan cepat, sehingga rentan terhadap kepunahan. Untuk mengatasi masalah penurunan populasi buaya tersebut maka perlu dicarikan suatu solusi antara lain manajemen penangkaran. Penelitian ini bertujuan untuk memahami manajemen penangkaran buaya PT. Ekanindya Karsa, memberikan informasi mengenai penangkaran dan pelestarisn buaya bagi berbagai kepentingan, informasi mengenai teknologi penanganan kulit dan cakupan potensi pemasaran, serta menentukan alternatif strategi pengelolaan penangkaran buaya.
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Judul: Studi Pengaruh Pemberiau Makauan Terhadap Pertumbuhan Buaya Muara (Crocodylus porosus) pada Penaugkarau PT Ekanindya Karsa di Cikande, Kabupaten Serang
Abstrak: Buaya Muara merupakan satwa yang bernilai ekonomis tinggi, karena buaya tersebut tidak hanya diimanfaatkan untuk industri kulit saja, bahkan telah diketahui pula bahwa banyak industri lain seperti industri obat - obatan, makanan, dan pupuk yang memanfaatkan buaya sebagai bahan baku industrinya. Pola pemanfaatan Buaya Muara yang masih mengupayakan metode eksploitatif ini mengakibatkan dampak pada terjadinya penman populasi buaya di dam, sehingga perlu dilakukan upaya penangkaran. Pennasalahan pada penangkaran buaya umumnya adalah berkaitan dengan pembiayaan yang cukup tinggi dalam memenuhi kuantitas pembelian pakan buaya dalam jumlah besar. Sehingga diperlukan pencarian jenis pakan altematif yang dapat rnemenuhi syarat ketersediaan dan harga yang terjangkau. Penelitian ini bertujuan untuk mencari jenis pakan yang dapat dijadiikan altematif pilihan, mendeskripsikan keefektifan (secara kualitas dan kuantitas) kegiatan pemberian pakan, dan melakukan pendugaan terhadap hubungan panjang - berat buava dan hubuncran berat - lebar dada buava oada Buava . Muara di A penangkar&. Penelitian berlangsung pada penangkaran buaya milk PT Ekanindya Karsa yang terletak di Desa Parig.i, Kecamatan Cikande, Kabupaten Serang, Banten
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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