Judul: Pengelolaan parawisata berbasis masyarakat di kawasan wisata pantai Tanjung Karangpusentasi Donggala
Abstrak: Beach tourism area in Tanjung Karang Pusentasi is one of tourism area in the Donggala District, which has diversity and interesting tourism objects. Because of this diversity, the Government of Donggala District has defined the area to become the important area for tourism development. This tourism area is located at the end of the Palu Bay and is directly toward the Makassar Strait, in Tovale, Limboro, Boneoge, and Labuan Bajo villages. To develop this important tourism area, a lot of researches need to be conducted. The objective of this research is to study and develop community based tourism concept, based on: (1) community perception on tourism activity and their expectation of involvement in developing this sector; (2) traditional/local wisdom particularly on natural resources management that can be used as a basis for a community based tourism management; and (3) government concept and other stakeholder views related with community based tourism management.
Keyword: 

Judul: Development of coastal tourism area based on the local community. Case study of group organizer of coastal tourism area “Samudera Baru” in Desa Sungaibuntu, Kecamatan Pedes, Kabupatern Karawang, West Java
Abstrak: Development of coastal tourism area based on the local community through reinforcement institutionalism approach is one alternative to realize the sustainable of tourism activity has been supported by all party in community, with combine the expectation of between group of organizer of coastal tourism area and stakeholders; in this case that local community institutions, covering institute are BPD, LPM, religion figure, ellite figure and figure of young fellow and also govermental institute, covering are sie. PMD. UPTD PKP of Kecamatan Pedes and on Departemen Penerangan, Pariwisata dan Kebudayaan Kabupaten Karwang. This study aim to comprehend the profile institue of organizer of coastal tourism area “Samudera Baru” which can sustained the continueing of tourism area, identifying problem faced by the institutions and also compile the solution altenative to the problems and the strategy of community development partisipatively through institutions reinforcement for continuation of environment or tourism area. Research methode used in this community development study is qualitative approach. Technique fo data collecting used by 1) observation, (2) circumstantial interview (3) documentation study, and (4) group discussion. Result of study to profile of group of organizer of coastal tourism area “Samudera Baru” evaluated from target aspect are leadership, division duty and role, pattern of relation and communication, cooperation and knowledge have generated the relevant critical issue with the appearance of prostitution phenomenon, damage of beauty of environmental continuity, intranparancy management and non responsiveness of organizer group to expectation and community aspiration and also the existence of potential agrariant conflict. Continueing of tourism area can be existed by if there are balance among of aspect are economic, social, ecological and agrariant. Pursuant to analysis of group of organizer of tourism are “Samudera Baru” and critical issue that happened indicate that the group have been able to show the economical function, have growed the initiative, relevant opinion and idea with the aspect are social, ecological and agrariant through not yet been supported by optimal effort. Pursuant to mentioned is hence formulated by a reinforcement program for individual trussed in basin of organizer of coastal tourism area “Samudera Baru”, a reinforcement program for the group and networking between the community and stakeholders through “co- management”. Through the programs formulated expected can be existed a development of coastal tourism area supported by community and stakeholders so that the tourism area development can fixed have continuation.
Keyword: 

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