Pada penelitian untuk tugas akhir ini dibangun sistem kriptografi kunci publik berdasarkan algoritma ElGamal yang berguna mengamankan pesan user tanpa perlu mengalami kesulitan dalam mendistribusikan kunci karena kunci untuk dekripsi (kunci privat) berbeda dengan kunci untuk enkripsi (kunci publik) sehingga kunci enkripsi dapat didistribusikan kepada publik tanpa harus mengungkapkan kunci dekripsi, berbeda dengan kriptografi kunci simetri yang kunci dekripsi dan enkripsinya sama. Selain algoritma ElGamal, penelitian ini juga menerapkan pembangkit bilangan prima metode TheSieveofEratosthenes pada sistem karena proses pembangkitan kunci algoritma ElGamal melibatkan bilangan prima. Dengan diterapkannya metode TheSieveofEratosthenes pada sistem, proses pembangkitan kunci dimulai dengan input bilangan integer N untuk membangkitkan deretan bilangan prima antara 2 dan N menggunakan TheSieveofEratosthenes, kemudian pasangan kunci publik dan kunci privat algoritma ElGamal dibangkitkan berdasarkan deretan tersebut. Sistem diwujudkan dalam bentuk sebuah aplikasi komputer yang dibangun menggunakan bahasa pemrograman Java dan NetBeans IDE. Pengujian pada aplikasi membuktikan sistem dapat menjalankan fungsi-fungsinya sesuai dengan rancangan, yaitu enkripsi pada aplikasi ini dapat mengubah plainteks ke bentuk cipherteks kemudian mengembalikannya ke bentuk plainteks semula melalui proses dekripsi, serta mampu menghasilkan pasangan kunci untuk digunakan pada proses enkripsi dan dekripsi dengan syarat kunci publik p lebih besar dari plainteks.
Kriptografi adalah ilmu untuk menyamarkan pesan agar hanya dikenal baik oleh penyedia dan penerima pesan. Algoritma kunci publik RSA adalah salah satu metode dalam ilmu kriptografi. Dalam algoritma kunci publik RSA, ada kunci privat dan publik, di mana masing-masing kunci menggunakan bilangan acak yang merupakan bilangan prima untuk melakukan enkripsi dan dekripsi.Bilangan acak yang dihasilkan sebenarnya adalah bilangan pseudo-random ('hampir' acak). Linear Congruential Generator (LCG) algoritma yang digunakan untuk menghasilkan bilangan acak, dan TheSieveOfEratosthenes diterapkan untuk menentukan apakah bilangan acak yang dihasilkan adalah bilangan prima.
Sebagaimana yang telah disimpulkan oleh Siang, ( 2002 ) bahwa semakin pesat perkembangan komputer, semakin terasalah pentingnya peranan bilangan prima. Bilangan prima yang dulunya dianggap sebagai sesuatu yang tidak memiliki manfaat, kini menjadi bagian yang tak terpisahkan dalam keamanan data. Kriptografi dewasa ini lebih dari sekedar enkripsi dan dekripsi. Tanda tangan digital (digital signature) mulai banyak dipakai untuk mencegah pemalsuan dokumen elektronik. Semuanya itu membutuhkan bilangan prima. Dalam hal ini penulis menggunakan algoritma TheSieveofEratosthenes.
This work is to built a public key cryptosystem based on the ElGamal algorithm which is useful for securing user messages without having difficulty in key distribution since it uses a different key for decryption (private key) and encryption (public key). Thus the encryption key can be distributed to public without having to disclose the decryption key, in contrast to symmetric key cryptography which uses the same key for encryption and decryption. Not only ElGamal algorithm, this research applies TheSieveofEratosthenes method as a prime numbers generator on the system because the ElGamal key generation algorithm involves prime numbers. With the implementation oftheSieveofEratosthenes method on the system, key generation process starts with an integer input N to generate a set of primes between 2 and N using theSieveofEratosthenes, then the public and private key pair's of ElGamal algorithm will be generated based on the set. System embodied in the form of a software is built using the Java programming language and NetBeans IDE. Tests on the software prove the system can carry out its functions in accordance with the design, that is encryption on this software can convert a plaintext into ciphertext form then convert it back to its original plaintext form through a decryption process and is able to generate key pairs for use in the process of encryption and decryption with terms the public key p is greater than the plaintext.
Cryptography is a science for disguising message in order that it is only known by both the provider and the receiver ofthe message. RSA Public key algorithm is a method in the science of cryptography. In RSA public key algorithm, there are private and public keys, in which each ofthe keys uses random number which is a prime in order to do encryption and decryption. The random number generated is actually a pseudo-random numbers (‘almost’ random). Linear Congruential Generator ( LCG ) algorithm is used to generate random numbers, and theSieveofEratosthenes is applied to determine whether the random numbers generated are primes.
Implementasi dan pengujian system adalah tahapan berikutnya yang dilakukan setelah melakukan tahapan analisis dan perancangan sistem. Hasil analisis dan perancangan sistem yang telah diuraikan pada bab sebelumnya akan menjadi dasar pembuatan perangkat lunak yang diberi nama “Implementasi Metode TheSieveofEratosthenes Untuk Membangkitkan Bilangan Prima”. Sebagaimana telah diuraikan pada bab-bab sebelumnya, perangkat lunak ini akan memiliki kemampuan untuk melakukan enkripsi dan dekripsi file teks (.txt) dengan gabungan dua metode, yaitu algoritma rsa dan Eratosthenes.
Translating a website from English into another language is not as simple as it may appear. There are numerous factors that have to be taken into consideration when translating a websites’ content. One must analyze the style ofthe language and the target audience. If the audience is foreign business personnel, the vocabulary, grammar and punctuation must reflect this. If the audience is informal or youth orientated then a more relaxed language must used. Just as we in the UK would identify the difference between a site using ‘posh English’ and ‘street English’, other cultures will have the same perceptions of language. Using the wrong language for the wrong reader in your localization project will lead to a misunderstanding ofthe site or company.
Alice Walker was born and raised in Georgia. When Walker was eight years old, her brother accidentally shot her with a gun, made her blind in one eye. This injury played a great role on building her self-conscious, and she started writing poetry. In Georgia where people would call a girl ― womanish ‖ , Alice Walker captures the spirit ofthe ― womanist ‖— the term she created herself, where she reflects it through her fictional characters. She defines her own black feminism and use the color purple to symbolize her feminism, which is depicted on her novel The Color Purple. In the 1965, after graduating, she went to Mississippi and joined the Civil Rights Movement. Her participation in the Civil Rights Movement more or less influenced her political and social views which she expresses it through her literary works. This does not only influence her thoughts on racial issues, but also develop her interest of her root in Africa, which is well reflected through Nettie ‘ s description in The Color Purple. Alice Walker ‘ s first novel was published in 1970 and her second one in 1976. Both books dealt with the Civil Rights Movement. The Color Purple which is published in 1982 is her most successful work and made her an important American writer.
This chapter gives an overview on previous research related to this study. It starts with the problem arise from RFID reading process near metallic environment and its possible solution which is by using wave absorber. Then it continues with some properties of iron oxides especially magnetite since this magnetic particle was used in producing the wave absorber. Then, it followed by magnetic paper production process and its properties for it is important to understand the behavior before producing the samples. Lastly, this chapter also reviews on paddy straw and recycled paper since it was used as a substrate in producing magnetic paper.
A synonym is only appropriate where literal translation is not possible and because the word is not important enough for componential analysis (Newmark, 1988: 84). Synonymy is not only used in one common language, as it is often found in Indonesian language, but it can also be applied in translating words from one language into another language. A synonym is a word that has the same or nearly the same meaning as another word in the language (Duran, 2006:156). For example, the sentence What a cute baby you’ve got! that will be translated as Alangkah lucunya bayi Anda! (Suryawinata, 2003: 73).
Study of law at the Department of PPKn FIS UNDIKSHA described the study as an intellectual process in which the learner/student has orientation to develop what they already know of a new pair idea with the idea that he had learned through experience. Legal science is its material object code behave. Therefore, the object ofthe science of law, i.e. the law, the law can be categorized as a science, that the object can be verified in empiricism and the empirical verification requirements needs to be quite doable in scientific activities. PPKn student provided skills development education of law science on how to think critically, solve problems, decided in the conflict of values and morals, as well as the ability to apply, analyze, synthesize, and evaluate the knowledge, skills and attitudes that foster awareness ofthe law for students as good citizens.
This is a research study urgent to conduct due to its variable of green tourism. Thus, the potentials ofthe local wisdom domestication ofthe area can be conserved, developed, and packed to be an eco-green tourism asset in the development of a proper, unique, and original tourist village. The Unit of Study on Architectural Heritage (USAH) ofthe Faculty of Engineering of Sebelas Maret University is obliged to take action and conduct research as a realization of concern. So, the research team in USAH raises the theme for research in accordance with the Research Masterplan and Roadmap of Sebelas Maret University in the years of 2009-2020 on the making of conservation, domestication, and preservation. The results ofthe research as the guideline for integrated and comprehensive policy as well as the new findings to enrich the treasure of knowledge and science will be recommended, socialized, and promoted to the stakeholders to be able to be brought into reality and implemented in an integrated way.
The children have become the catalyst for positive change in their previously subsistence farming mountain society. They are now their parent’s teachers, especially in the rudiments of organic vegetable farming, the key to ultimate food security, self-reliance, sustainable health improvement and ultimate sustainable social and economic development. Many nutritious vegetables and medicinal herbs are now growing on steep and previously barren slopes that had never supported crops before, not even cassava.
The researcher used the method of interview in composing the analysis ofthe translation quality ofthe similes. The interview process was helped by some questionnaires. Firstly, the researcher composed the list ofthe similes as the questionnaires to help her in doing this research. The questionnaires were composed into two different formats, the closed and open formats. The closed format was in the form of scaled questionnaire while the open format was in the form of columns for the raters’ comments. The questionnaires were then distributed to the raters. After the questionnaires had been assessed by the raters, the researcher collected them and had an interview with the raters to discuss about the assessment results. The interview process was intended to discuss and gain more information about the reasons the raters assess so.