Judul: Acceleration of Advanced Encryption
Standard Algorithm Use Dual Graphics Processing Unit
Abstrak: Seiring dengan pesatnya perkembangan teknologi, kebutuhan akan keamanan data dalam jumlah yang besar semakin meningkat. Dalam kriptografi, salah satu algoritme yang dapat diandalkan adalah AES. Algoritme ini dapat mengenkripsi dan mendekripsi suatu data sehingga informasi di dalamnya tidak dapat diakses secara bebas oleh pihak yang tidak berkepentingan. AES memiliki kompleksitas O(n) pada proses enkripsi dan dekripsinya. Semakin besar jumlah data yang diperlukan semakin lama waktu eksekusinya. Oleh karena itu diperlukan pemrograman paralel menggunakan GPU untuk memecahkan masalah ini. Penelitian ini menerapkan algoritme AES pada paralel menggunakan dual GPU dan membandingkan kinerja dengan paralel single GPU. Hasil yang diperoleh menunjukkan bahwa untuk data dengan ukuran di bawah 32 MB dengan penggunaan dual GPU menjadikan waktu eksekusi menjadi lebih lama. Sebaliknya, semakin besar ukuran datanya waktu eksekusi menjadi lebih cepat. Speedup maksimal diperoleh saat menggunakan data 512 MB. Nilai speedup nya adalah 383 kali pada dual GPU dan 271 kali pada single GPU.
Keyword: AES, GPU, encryption, cryptography, parallel, speedup

Judul: Implementasi Algoritme Enkripsi Advanced Encryption Standard secara Paralel dengan GPU NVIDIA CUDA
Abstrak: Processor streaming architecture in GPU has provide general purpose computation which have its own potential to help CPU with its parallel computation capability. One example of supported processor streaming architecture is Fermi which is developed by NVIDIA. Furthermore, NVIDIA has developed its own software development kit namely CUDA, which can integrate many popular existing programming languanges such as C++ for GPU-based parallel computation. This research focus on the implementation of parallel AES algorithm with GPU and analyze the performance result of the implementation in two different NVIDIA devices, namely NVIDIA GeForce GT220 and NVIDIA Quadro 600. In general, the performance of parallel GPU computation is better than sequential computation for large data input. It is obtained that the maximum speedup of NVIDIA GeForce GT220 in 8 MB input is 89.3 with 180% efficiency. Higher speedup of 101.6 can be obtained by NVIDIA Quadro 600 with the same input size with around 100% efficiency.
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Judul: Etno-ornitologi Burung Kancilan Flores (Pachycephala nudigula nudigula Hartert 1897) pada Masyarakat Lio di Taman Nasional Kelimutu
Abstrak: Bare-throathed whistler is one of several wild birds in Kelimutu National Park (TNKL) that is believed to have correlation with Lio Community‟s belief. The estimation of Bare-throated whistler‟s population in Kelimutu National Park was about 186.41-1668.07 individual by the density about 0.0389-0.3481 ind/ha with the sex ratio 6.2:1 that spreaded on area with height of 1100 – 1600 masl. The characteristic of Bare-throated whistler‟s habitat is a natural forest with various canopy level, high plant species diversity and high density. The habitat characteristics related to the availability of food in the form of insects, cover, safety and a nesting site. Generally the most of Lio community knew the existence of Bare-throated whistler directly or from their parents‟ stories. The perceptions of Lio Community to the Bare-throated whistler‟s existence is generally support the conservation efforts. The perceptions construct the Lio Community‟s atitude that tend to be conservative to the existence of Bare-throated whistler. The attitude shown by their behavior that not cathing the Bare-throated whistler from the TNKL‟s area or the outside. The attitude have an important role to the existence of Bare-throated whistler in Kelimutu National Park‟s area.
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