scholarly journals Komparasi Waktu Algoritma RSA dengan RSA-CRT Base On Computer

2020 ◽  
Vol 2 (1) ◽  
pp. 13
Author(s):  
Nur Cayo Hendro Wibowo ◽  
Khotibul Umam ◽  
Albadru Muh Izul Khaq ◽  
Favian Agung Rizki

<p align="center"><em>Cryptography is a branch of mathematics. Asymmetric algorithms such as RSA, including the type of cryptography that is more widely used to be implemented in everyday life because it has an algorithm that is not easy to be misused by others. However, the encryption and decryption process of RSA requires quite a long time. For this reason, RSA - CRT emerged. In this study a time comparison between the RSA algorithm and the RSA-CRT Base On Computer is done. The purpose of this study was to determine the execution time of the RSA-CRT algorithm using PHP.</em></p><p><em>This research uses the Research and Development or R&amp;D method, with the R&amp;D method created by the product development RSA-CRT algorithm application from UIN Walisongo Semarang based on computer. Based on the data analysis, the conclusion is that although the manual calculation of the RSA-CRT algorithm takes longer than the others in this case RSA. But have a faster time when using PHP.</em></p><p align="center"> </p>

2019 ◽  
Vol 4 (2) ◽  
Author(s):  
Rozali Toyib ◽  
Ardi Wijaya

Abstack: Data stored in storage media is often lost or opened by certain parties who are not responsible, so that it is very detrimental to the owner of the data, it is necessary to secure data so that the data can be locked so that it cannot be opened by irresponsible parties. The RC5 and RC6 algorithms are digestive massage algorithms or sometimes also known as the hash function which is an algorithm whose input is a message whose length is not certain, and produces an output message digest from its input message with exactly 128 bits in length. RC6 password is a protection for the user in securing data on a PC or computer. Based on the results of the conclusions taken: For the experiments carried out on the RC5 algorithm the execution time for the generation of keys (set-up key) is very fast, which is about 9-10 ns, a trial carried out on the RC6 algorithm execution time for the key generator (set up key ) faster than 10-11 ns. In the encryption and decryption process, the execution time depends on the size or size of the plaintext file. The larger the size of the plaintext file, the longer the execution time.Abstrak : Data yang tersimpan dalam media penyimpanan sering hilang atau dibuka oleh pihak-pihak tertentu yang tidak bertanggung jawab, sehinga merugikan sekali bagi pemilik data tersebut, untuk itu diperlukan suatu pengamanan data agar data tersebut dapat terkunci sehingga tidak dapat dibuka oleh pihak yang tidak bertanggung jawab.. Algoritma RC5 dan RC6 merupakan algoritma massage digest atau kadang juga dikenal dengan hash function yaitu suatu algoritma yang inputnya berupa sebuah pesan yang panjangnya tidak tertentu, dan menghasilkan keluaran sebuah message digest dari pesan inputnya dengan panjang tepat 128 bit. Password RC6 merupakan salah satu perlindungan kepada user dalam pengamanan data yang berada dalam sebuah Pc atau computer. Berdasarkan hasil pengujian diambil kesimpulan : Untuk uji coba yang dilakukan pada algoritma RC5 waktu eksekusi untuk pembangkitan kunci  (set up key) sangat cepat sekali yaitu sekitar  9-10 ns, uji coba yang dilakukan pada algoritma RC6 waktu eksekusi untuk pembangkit kunci (set up key) lebih cepat sekali yaitu 10-11 ns, Pada proses enkripsi dan dekripsi, waktu eksekusi tergantung dari besar atau kecilnya ukuran file plaintext.s emakin besar ukuran file plaintext maka semakin lama waktu eksekusinya.


2020 ◽  
Vol 4 (2) ◽  
pp. 31
Author(s):  
Syahrul Yanuar Ramadhan ◽  
Ari Wibowo Kurniawan ◽  
Dona Sandy Yudasmara ◽  
Mu'arifin Muarifin ◽  
Febrita Paulina Heynoek ◽  
...  

Tujuan penelitian pengembangan ini adalah mengembangkan dan menguji kelayakan produk perangkat pembelajaran berbasis model pembelajaran Project Based Learning dalam pembelajaran pendidikan jasmani, kesehatan dan rekreasi materi sepakbola di Sekolah Dasar Kabupaten Pasuruan. Dalam penelitian ini menggunakan metode Research and Development (R&D). Pengumpulan data menggunakan instrumen angket/kuesioner. Subjek uji coba kelompok kecil berjumlah 6 guru PJOK dan uji coba kelompok besar berjumlah 8 guru PJOK. Berdasarkan hasil  analisis data menunujukkan uji coba kelompok kecil dengan tingkat kelayakan 84%, uji coba kelompok besar dengan tingkat kelayakan 88%. Hasil dari penelitian dapat disimpulankan bahwa produk pengembangan perangkat pembelajaran layak digunakan. Abstract____________________________________________________________ The purpose of this development research is to develop and test the feasibility of learning products based on the Project Based Learning learning model in physical education, sports and health learning soccer motion material in Pasuruan Regency Elementary School. In this study using the method of Research and Development (R&D). Data collection using a questionnaire / questionnaire. Small group trial subjects were 6 PJOK teachers and large group trials were 8 PJOK teachers. Based on the results of data analysis, it shows a small group trial with a feasibility level of 84%, a large group trial with a feasibility level of 88%. The results of the study can be concluded that the product development of learning devices is feasible to use.


2021 ◽  
Vol 3 (10) ◽  
pp. 784-789
Author(s):  
Brigita Cecilia Armanda ◽  
Sapto Adi ◽  
Prisca Widiawati

Abstract: The research aim to develop a basic technique model of lob punches that combined a badminton smash in the from of video that uses android application media. The method of this research is using Research and Development. The subject of this research is badminton athlete PB IMARA. The athlete has age criteria between 8-12 years with the number 30 athlete. The based on needs analysis that a badminton athlete PB IMARA Kediri are still deficiency on the skill level of accuracy of lob punches with smash badminton, this is known when athletes perform training activities. lack of variation lob punches with a badminton smash. data analysis result of data analysis of the validation badminton expert the percentage of 86 percent very valid category, media expert the percentage of 90 percent very valid category, then of a small groups trials with subject 8 athlete the percentage of 88 percent very valid category, the result of a large group trials with subject 22 athlete the percentage of 91 percent very valid category. Concluded a based of table classification appropriateness that a product development classified very valid and feasible use. Abstrak: Penelitian ini bertujuan untuk mengembangkan produk berupa model latihan teknik dasar pukulan lob yang dikombinasikan dengan pukulan smash bulutangkis berupa video menggunakan media aplikasi berbasis android. metode dari penelitian ini menggunakan Research and Development. Subjek yang diteliti adalah atlet bulutangkis PB IMARA Kota Kediri yang mempunyai kriteria usia 8-12 tahun dengan jumlah 30 atlet. Berdasarkan hasil analisis kebutuhan bahwa atlet di PB IMARA Kota Kediri masih kurang pada tingkat keterampilan akurasi pukulan lob dengan pukulan smash, hal tersebut diketahui ketika atlet melakukan kegiatan latihan. Kurang adanya variasi pukulan lob dengan pukulan smash bulutangkis. Hasil analisis data dengan validasi oleh ahli bulutangkis persentase sebesar 86 persen kategori sangat valid, ahli media persentase sebesar 90 persen kategori sangat valid, selanjutnya dari uji coba kelompok kecil oleh 8 atlet persentase sebesar 88 persen kategori sangat valid, uji coba kelompok besar oleh 22 atlet persentase sebesar 91 persen kategori sangat valid. Disimpulkan berdasarkan tabel klasifikasi kelayakan dari produk pengembangan yang dihasilkan, hingga memenuhi kriteria sangat valid dan layak digunakan.


2021 ◽  
Vol 3 (7) ◽  
pp. 533-542
Author(s):  
Muhammad Fahmi Amiruddin ◽  
Ari Wibowo Kurniawan

Abstract: This research and development aims to develop massage therapy learning media based on the articulate storyline application which can later be used in learning in the PJKR FIK UM department and can make it easier for students to understand massage therapy material. The method used is the Research and Development approach with a development research model with the steps (1) needs analysis, (2) doing product design (design), (3) product development (development), (4) implementation or (implementation), and (5) product evaluation (evaluation). The test results of the whole product involved 60 students of PJKR FIK UM. Based on the results of data analysis obtained from trials with aspects of ease, clarity, attractiveness, suitability, and usefulness, the average result is 95 percent in small group trials with 10 students as subjects and 90 percent in large group trials with 50 students as subjects. Based on the results of data analysis, it can be concluded that the product of developing massage therapy learning media based on the articulate storyline application can be said to be suitable for use as massage therapy learning media for students majoring in PJKR FIK UM. Abstrak: Penelitian dan pengembangan ini bertujuan untuk mengembangkan media pembelajaran terapi masase berbasis aplikasi articulate storyline yang nantinya dapat digunakan dalam pembelajaran di jurusan PJKR FIK UM dan dapat mempermudah mahasiswa dalam memahami materi terapi masase. Metode yang digunakan yaitu pendekatan Research and Development dengan model penelitian pengembangan dengan langkah-langkah (1) Analisis kebutuhan (analysis), (2) melakukan desain produk (design), (3) pengembangan produk (development), (4) pelaksanaan atau (implementation), dan (5) evaluasi produk (evaluation). Hasil uji coba keseluruhan produk melibatkan 60 mahasiswa PJKR FIK UM. Berdasarkan hasil analisis data yang diperoleh dari uji coba dengan aspek kemudahan, kejelasan, kemenarikan, kesesuaian, dan kegunaan mendapatkan hasil rata-rata sebesar 95 persen pada uji coba kelompok kecil dengan jumlah subjek 10 mahasiswa dan 90 persen pada uji coba kelompok besar dengan jumlah subjek 50 mahasiswa. Berdasarkan hasil analisis data dapat disimpulkan bahwa produk pengembangan media pembelajaran terapi masase berbasis aplikasi articulate storyline dapat dikatakan layak digunakan sebagai media pembelajaran terapi masase untuk mahasiswa jurusan PJKR FIK UM.


Author(s):  
Mohammad Kafarnawi

Asymmetric encryption algorithms suffer the problem of high execution time. This paper presents a proposed methodology to perform encryption and decryption of messages written in Arabic, using artificial intelligence represented by artificial neural networks based on the RSA algorithm. The method is based on dividing the message into partial messages. The arrays of weights and biases in the neural network layers are considered the encryption or decryption key, according to their function. All steps of the proposed method and how it works were shown and used in the MATLAB environment to design a system for encrypting and decrypting messages written in Arabic. The results proved the effectiveness of the proposed methodology and its superiority over the RSA algorithm in terms of execution time for both encryption and decryption. The encryption time in the proposed algorithm is close to the time of decryption, unlike what it was in the RSA algorithm, where the encryption time was relatively much greater than the decryption time. The proposed method was tested on four text files of 50KB, 100KB, 150KB, and 200KB, over two hundred iterations. The average improvement in execution time was 1,330ms and 4,497.5ms for encoding and decoding, respectively. KEYWORDS Data protection, decryption, execution time, security, RSA algorithm, performance


2017 ◽  
Author(s):  
Andysah Putera Utama Siahaan

Encryption is a technique that transforms a code from an understandable into an incomprehensible code. Many methods can be applied to an encryption process. One such method is RSA. RSA works by appointing on byte values. The value is obtained from character conversion to ASCII code. This algorithm is based on the multiplication of two relatively large primes. Applications of the RSA algorithm can be used in data security. This research provides RSA algorithm application on data security system that can guarantee data confidentiality. RSA algorithm is known as a very secure algorithm. This algorithm works with the number of bits in the search for prime numbers. The larger the bits, the less chance of ciphertext can be solved. The weakness of this method is the amount of ciphertext capacity will be floating in line with the number of prime numbers used. Also, to perform the process of encryption and decryption, RSA requires a relatively long time than other algorithms. The advantage of RSA is that complicated ciphertext is solved into plaintext.


1994 ◽  
Vol 6 (1) ◽  
pp. 52-58 ◽  
Author(s):  
Charles Anderson ◽  
Robert J. Morris

A case study ofa third year course in the Department of Economic and Social History in the University of Edinburgh isusedto considerandhighlightaspects of good practice in the teaching of computer-assisted historical data analysis.


2020 ◽  
Vol 3 (2) ◽  
pp. 35
Author(s):  
Sigit Trimayanto ◽  
Dian Novita

This study aims to produce the Practical KIT along with its devices that are effectively used as learning media to train students SPS on the sub material of the Reaction Rate Law. The method used in this study is Research and Development design. The research instrument used consisted of a sheet of pre-test and post-test. Data analysis was carried out in descriptive quantitative to determine the effectiveness of Practical KIT along with the devices developed. The media is said to be effective if it meets 2 requirements, namely the percentage of classical completeness <85% and N-gain value <0.3. The developed media has been declared effective as indicated by the increase in the value of cognitive learning outcomes in the "Medium" and "High" categories with 100% classical completeness, an increase in the value of science process skills of students after using the Practical KIT media. "With classical completeness reaching 91.67%.


Author(s):  
Ambar Widianingrum ◽  
Joko Sulianto ◽  
Rahmat Rais

The purpose of this study was to describe the feasibility of teaching materials based on an open-ended approach to improve the reasoning abilities of fourth grade students in elementary schools. This type of research is research and development (Research and Development). The subjects of this study were 3 classroom teachers. The data analysis technique used is descriptive qualitative data analysis (data reduction, data presentation and conclusion) and quantitative descriptive data analysis. Based on the results of stage 1 media validation, it was obtained 84.8%, and the results of stage 2 media validation were obtained 94.8%. The result of material validation for stage 1 was obtained 84.6%, and validation for material for stage 2 was obtained 93.3%. The results of initial field trials obtained media 93.7% and material 92.3%. This shows that the teaching material is declared valid and suitable for use. Based on the results of this study, the suggestion that can be conveyed is that teaching materials based on an open-ended approach can be used as a tool for teaching and learning resources for students.


2021 ◽  
Vol 13 (15) ◽  
pp. 8628
Author(s):  
Emília Duľová Spišáková ◽  
Barbora Gontkovičová ◽  
Emil Spišák

Research and development have been of interest to the European Union for a long time. This topic is also underlined in economic reform agendas and plans that have the form of strategies with clearly set targets. The article deals with the issue of financing R&D activities from the perspective of the share of expenditure to GDP, the total amount of funds spent on R&D, the share of expenditure per capita, and the structure of expenditure. The aim is to analyze and compare development in the field of R&D financing in selected countries of the European Union with emphasis on achieving the Europe 2020 target and to point out the expected development of the indicator for the first years of the validity of the 2030 Agenda for Sustainable Development. During the processing of the article, mathematical and statistical methods (regression and correlation analysis) were used in addition to standard logic methods intended for processing data and drawing conclusions (synthesis, induction). The final evaluates the achievement of the target in the field of R&D financing in accordance with the target of the Europe 2020 strategy and, using regression, predicts the development of the given indicator for coming years.


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