Judul: Kajian Pengendalian Persediaan Bahan Baku Kecap Dan Produktivitas PD Putra Banten Kabupaten. Serang Propinsi. Banten
Abstrak: Kecap merupakan salah satu produk olahan hasil fermentasi kedelai. Di Indonesia kecap telah dikenal dan digunakan sebagai penambah aroma dan rasa pada berbagai jenis makanan. Rasa kecap yang manis dan gurih banyak disukai oleh masyarakat, sehingga penggunaan kecap tidak lepas dari setiap masakan
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Judul: Proses fermentasi spontan dan pengolahan bahan kecap di pabrik kecap "Zebra"
Abstrak: Dewasa ini industri kecil pengolahan pangan di Indone- sia perkembangannya cukup cerah, demikian juga prospeknya pada masa yang akan datang. Hal ini karena bahan mentah cukup banyak dan mudah diperoleh, serta kebutuhan akan hasil industri semakin meningkat. Kedelai merupakan salah satu ba- han mentah yang banyak dipakai dalam industri pengolahan pangan di Indonesia. Dalam kelompok kacang-kacangan, kedelai menduduki urutan pertama dalam tingkat produksinya. Sebagai bahan pangan sumber protein, kedelai menduduki tempat kedua setelah ikan (Winarno, 1984). Di Indonesia, makanan yang menggunakan bahan asal kede- lai banyak sekali dijumpai dan sudah menjadi makanan sehari- hari rakyat Indonesia. Salah satu bahan makanan yang berasal dari kedelai adalah kecap. Kecap sebagai bumbu masakan sebe- narnya sudah dikenal dan dikonsumsi oleh orang Cina kira- kira 3 000 tahun yang lalu, kemudian menyebar ke beberapa negara seperti Amerika, Inggris, Jepang, Korea, Malaysia dan negara Asia lainnya termasuk Indonesia (Yokotsuka, 1981). Jadi walaupun kecap banyak dibuat dan dikonsumsi di Indone sia, tapi bukanlah merupakan makanan hasil fermentasi yang khas Indonesia. Hal ini mungkin merupakan salah satu sebab mengapa penelitian kecap di Indonesia belum banyak dilakukan, tidak seperti halnya produk tempe yang telah mendapat banyak perhatian dari para ilmuwan…dst
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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