Judul: Penataan Situ dalam rangka Pengembangan Wisata Tirta Berbasis Konservasi: Studi Kasus Situ Kemuning, Kabupaten Bogor
Abstrak: Kemuning lake located in Kabupaten Bogor known has a function as a reservoir of water that control flood and provide recreation. The condition of Kemuning lake declines due to silting up and shrinkage caused by anthropogenic activities. Kemuning lake as a water resource infrastructure is facing threats, and potential efforts are required to manage it for its preservation and also for the benefit the surrounding community. The aims of this study was to identify the physical condition to support conservation of the water resource in Kemuning lake and to analyze of water tourism development in the lake through the potential space utilization. The case study research method was done with the approach to assess the physical condition of lake, carrying capacity of tourism, potential spatial analysis and strategy formulation. The results showed that the physical condition of Kemuning lake is currently disturbed. It mainly caused by silting and shrinkage or encroachment. The percentage of shrinkage of water is more than 25%. Eventhough the lake has been disturbed but it still has a good potential to support tourism. Extensive spatial analysis showed that 34.35% (5.27 ha) of area have a potential to support tourism. Space was divided into two sections, namely; green open space and tourist services space. Carrying capacity analysis found that the lake has a carrying capacity to support fishing (202 person/day), relaxing and jogging (1698 person/day) and water attraction activity (142 person/day). The implementation of tourism development has to be integrated with impact management in order to support sustainability. There are two main strategy for developing management of Kemuning lake through water tourism approach, e.g. 1) revitalization and restructuring of the potential space utilization as integrated approach, 2) Socialization of the community through empowerment and environmental education in schools. Furthermore, the problem solving of Kemuning lake for sustainable management requires lake revitalization and restructuring of potential space utilization as action plan, and empowering local communities to encourage sense of ownership.
Keyword: carrying capacity, disturbed lake, lake planing, revitalization, strategy, tourism potency

Judul: Upaya Pengelolaan Kualitas Perairan untuk Pengembangan Wisata Air Situ Sawangan-Bojongsari di Kota Depok
Abstrak: Development of situ into water tourism area is an effort to conserve situ from development activities damage, so that situ can generate ecological, economic, and aesthetic benefits. Situ Sawangan-Bojongsari is one of small lakes in Depok that is being developed into water tourism area. Accordingly, this research aimed to study the management, water quality, visitor perceptions, and the level of residents knowledge of small lake environmental material and water tourism development in Situ Sawangan-Bojongsari, and also make recommendation of water quality management strategies for water tourism development in Situ Sawangan-Bojongsari. The management of Situ Sawangan- Bojongsari must be improved by requiring cooperation and better coordinating between the stakeholders involved in: Center Government, Local Government, Working Group of Situ Sawangan-Bojongsari, Forum of Situ Working Groups in Depok, private sector, and NGOs. Water condition of this small lake tends to be good enough for the water tourism development, but some measurements of some parameters exceed or not conform with the water quality standard. The water quality of small lake can decrease more quickly because of anthropogenic activities. Perceptions of visitors to the condition of Situ Sawangan-Bojongsari and its tourism are good enough, but small lake management and water tourism facilities improvement should be performed. The levels of residents knowledge of the small lake environmental material and water tourism development are respectively quite good, but still need to be improved into good comprehension and attitudes. Based on hierarchy analysis, the community empowerment is an alternative to the highest priority, followed by socialization, and recommendation of area management.
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Judul: Perbandingan Algoritma Message Digest 5 (MD5) Dan Secure Hash Algorithm 1 (Shai) Untuk Autentikasi Pesan
Abstrak: Seiring dcngan meningkatnya penggunaan internet sebagai media pertukaran pcsan. metodc pcngamanan pcsan menjadi sangat penting. Nilai suatu pesan yang ingin dijaga keutuhan atnu intcgritasnya menycbabkan pesan tcrscbut hanya baleh dimodifikasi olch pihak yang bcrhak. Namun pada rcalitanya, pesan tersebut akan mendapat ancaman dari scorang penyusup. Bentuk ancaman terjadi apabiJa pcnyusup dcngan suatu cara. dapat mengubah isi pesan terscbut untuk bcrbagai kepcntingan. Apabila isi pesan telah bcrubah dad bentuk aslinya, maka pesan terscbut dikatakan sudah tidak aulcnlik (asli) Iagi. Snatn metodc yang efektif untuk mcnguji kcautentikan suatll pesan digllnakan tcknik kriptografi. Pada kal)'a ilmiah ini akan dibahas algoritma Message Digest 5 (MDS) dan Secure !-lash Algorithm (SHAI) untuk autentikasi pesan.
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