Judul: Pollution Status of Banten Bay Waters, Banten Province Based on Physical and Chemical Parameters of The Waters
Abstrak: The influence of environmental and anthropogenic factors around the waters of Banten Bay can change the condition of water quality and have the potential to pollute the waters in the area if the waste generated is not properly managed. This study aims to determine the pollution status of Banten Bay waters, Banten Province based on three different methods are Pollution Index (IP), STORET, and CCME observed temporally and spatially. The method used in this study consisted of in situ and ex situ water quality analysis using parameters of temperature, DO, pH, turbidity, TSS, ammonia, nitrate, nitrite, and total phosphate. The analysis is continued by using the IP, STORET, and CCME methods to determine the pollution status of the waters. The results showed that the pollution status of Banten Bay waters based on the IP, STORET, and CCME methods both temporally and spatially had the same results. The pollution status of Banten Bay waters results is lightly polluted using the IP and STORET methods, while the CCME method shows that the condition of Banten Bay waters is quite good.
Keyword: CCME, pollution index, STORET, water pollution, water quality

Judul: Water Quality Status of Kemayungan-Linduk Coastal Waters, Banten  Bay Based on Aquatic Physical and Chemical Parameter
Abstrak: Wilayah pesisir Kemayungan-Linduk terletak di Teluk Banten (Provinsi Banten), merupakan kawasan pemukinan yang memiliki potensi tinggi di berbagai sektor termasuk budidaya perikanan dan perikanan tangkap. Berbagai aktivitas antropogenik dan perubahan alami faktor lingkungan memperngaruhi masuknya bahan pencemar ke dalam perairan sehingga berdampak pada perubahan kondisi kualitas air dan biota di sekitar wilayah perairan tersebut. Penelitian ini bertujuan untuk menganalisis status kualitas perairan pesisir di wilayah Kemayungan-Linduk melalui dua metode, yaitu perhitungan Indeks Pencemaran (IP) dan Indeks CCME (Canadian Council of Ministers of the Environment) dalam rangka pengembangan perikanan. Pengamatan kualitas air dilakukan secara in-situ dan ex-situ dengan pengambilan sampel air pada bulan Februari hingga April 2021 di enam stasiun. Parameter kualitas air yang diamati adalah suhu, kecerahan, kekeruhan, TSS, pH, salinitas, oksigen terlarut, nitrit, nitrat, dan total fosfat. Hasil penelitian secara spasial dan temporal pada enam stasiun pengamatan memiliki nilai bervariasi yang berkisar antara 0,93 hingga 6,45 yang mengindikasikan bahwa status perairan air tergolong dalam kondisi baik hingga tercemar sedang, sedangkan nilai CCME berkisar antara 33,53 hingga 63,90 yang mengindikasikan mutu perairan tergolong kurang baik hingga buruk., The Kemayungan-Linduk coastal area is located in Banten Bay (Banten Province), which is a residential area that has high potential in various sectors including aquaculture and capture fisheries. Various anthropogenic activities and natural changes in environmental factors influence the entry of pollutant materials into the waters, resulting in changes in water quality conditions and biota around the waters. This research aims to determine water quality of coastal waters in the Kemayungan-Linduk region using two methods, namely calculating the Pollution Index (IP) and the CCME Index (Canadian Council of Ministers of the Environment) in the context of fisheries development. Water quality observations were carried out in-situ and ex-situ by taking water samples from February to April 2021 at six stations. The water quality parameters observed were temperature, transparency, turbidity, TSS, pH, salinity, dissolved oxygen, nitrite, nitrate and total phosphate. The results of spatial and temporal research at six observation stations have varying values ranging from 0,93 to 6,45 which indicates that the status of the water is classified as being in a good condition to moderately polluted condition, while the CCME value ranges from 33,53 to 63,90 which indicates Water quality is classified as marginal to poor.
Keyword: Kualitas air, Indeks CCME, Indeks Pencemaran

Judul: Konstruksi aritmetika kurva eliptik F(2m) supersingular dan non-supersingular untuk skema kunci publik ElGamal
Abstrak: Algoritme ElGamal adalah salah satu algoritme kunci publik dengan aritmetik modular p yang mempunyai struktur grip siklik Z(p). Tingkat keanaman algoritme ini terletak pada pemecahan masalah logaritme diskret dari Z(p). Akan tetapi, tingkat keamanan tadi tahun ke tahun semakin menurun yang disebabkan kemampuan pemecahan algoritme diskret semakin meningkat. Untuk memenuhi tingkat keamanan yang memadai dibutuhkan p yang cukup besar yang menyebabkan proses enkripsi dan dekripsi menjadi lambat.
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