Judul: Analisis implementasi digital signature standard menggunakan fungsi hash sha-256, sha-384 dan tiger
Abstrak: Metode keamanan proses transmisi data telah berkembang pesat seiring dengan berkembangnya ilmu kriptografi. Kriptografi dapat memberikan layanan keamanan yang mencakup aspek keamanan seperti kerahasiaan, integritas data, otentikasi dan non-penyangkalan. Kriptografi modern menggunakan kunci yang harus dirahasiakan untuk mengatasi masalah keamanan kriptografi. Permasalahan dalam penggunaan kunci yang sama oleh dua entitas yang saling berkomunikasi dalam pertukaran pesan adalah cara pendistribusian kunci tersebut. Masalah ini dapat diatasi dengan menggunakan kriptografi kunci publik, yang memungkinkan pengguna berkomunikasi dengan aman tanpa kunci rahasia bersama. Tanda tangan digital adalah penerapan kriptografi kunci publik. Saat mengakses dokumen digital penting, perlu dilakukan verifikasi tanda tangan yang diberikan. Implementasi tanda tangan digital selalu memerlukan fungsi hash. Fungsi hash yang digunakan pada penelitian ini yaitu SHA-256, SHA-384 dan Tiger. Federal Information Processing Standards (FIPS) yang menetapkan standar kriptografi untuk tanda tangan digital adalah Digital Signature Standard (DSS). Algoritma yang termasuk dalam DSS adalah Digital Standard Algorithm (DSA), Ron Rives, Adi Shamir, dan Leonard Adleman (RSA) dan Elliptic Curve Digital Signature Algorithm (ECDSA). Pengujian kinerja ketiga algoritma dilakukan dengan membuat aplikasi menggunakan bahasa pemrograman komputer C++. Implementasi program menggunakan perpustakaan kelas C++ untuk skema kriptografi yaitu Crypto++ Library 5.6.0. Perpustakaan kelas yang digunakan di kelas berfungsi untuk tanda tangan digital. Pada penerapan tanda tangan digital yang dihasilkan, dilakukan pengujian dengan menggabungkan masing-masing algoritma fungsi hash dengan masing-masing DSS untuk membandingkan kinerjanya dari segi waktu dan penggunaan memori. Terhadap hasil pengujian tersebut kemudian dianalisis dengan menggunakan uji statistik. Hasilnya menunjukkan bahwa pasangan fungsi hash Tiger dan algoritma DSA merupakan kombinasi terbaik.
Keyword: Cryptography, Digital signature, Hash functions, Crypto++ library, Anova

Judul: Analisis ImplementasiDigital Signature Standard menggunakan Fungsi Hash SHA-256, SHA-384 dan Tiger
Abstrak: Security method of data transmission process has been growing rapidly with the science of cryptography. Cryptography can provide security services that includes security aspects like confidentiality, data integrity, authentication and non-repudiation. Modern cryptography uses a key that must be kept secret to overcome the problem of cryptographic security. Problem in the use of the same key by two entities that communicate with each other in exchanging messages is a way to distribute the key. This problem can be overcome by using public-key cryptography, which allows users to communicate securely without a shared secret key. Digital signature is the application of public-key cryptography. When accessing important digital documents, it is necessary to verify the signature given. Implementation of digital signature always requires a hash function. Hash function used in this research namely SHA-256, SHA-384 and Tiger. Federal Information Processing Standards (FIPS) set the cryptographic standard for digital signatures is the Digital Signature Standard (DSS). Algorithms included in the DSS are the Digital Standard Algorithm (DSA), Ron Rives, Adi Shamir, and Leonard Adleman (RSA) and Elliptic Curve Digital Signature Algorithm (ECDSA). Performance testing of the three algorithms is done by making an application using a computer programming language C++. Implementation program using C++ class library for cryptographic scheme that is Crypto++ Library 5.6.0. Class libraries used in the classes functions for digital signatures. On the application of digital signatures generated, conducted tests is done by combining each hash function algorithm with each of the DSS in order to compare their performance in terms of time and memory usage. Against the test results are then analyzed using statistical tests. The result shows that pair of Tiger hash function and DSA algorithm is the best combination.
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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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