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Penggunaan Kriptografi Klasik Enkripsi Deskripsi Menggunakan Metode Vignere Cipher Berbasis Website Mazidah, Isti'anatul; Tahir, Muhlis; Soleha; Hamdani; Ramadhan, Yogi Rifansyah
Informasi Interaktif : Jurnal Informatika dan Teknologi Informasi Vol. 9 No. 2 (2024): JII Volume 9 Number 2, Mei 2024
Publisher : Program Studi Informatika Fakultas Teknik Universitas Janabadra

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37159/jii.v9i2.87

Abstract

As time goes by, advances in technology also make it easier for people to communicate. One of the most common things to do is use computers to communicate, while computer networks are needed to transmit data or information. When collecting data, security and privacy are two very important aspects of data communication, whether for personal purposes or for group data security. One of the most effective ways to ensure data security and integrity is to use cryptographic techniques using the Vigenere Cipher method. Vigenere Cipher is a technique that can be used to encrypt text so that information cannot be read or misused by those who are not asked to receive the text. The aim of this research is to simplify the encryption process and description of the vigenere cipher method using websate. This research uses a literature study method based on various journals and experiments, including system implementation and design techniques. Test results on websites created using manual mapping show the same results. Both produce appropriate encryption and plaintext.  Keywords: Vignere Cipher, Cryptography, Security
Meningkatkan Efisiensi Pengadaan Buku di Perpustakaan dengan Sistem Informasi Berbasis Komputer Ariani, Linda; Hamdani; Alahuddin
Jurnal Manajemen Sistem Informasi (JMASIF) Vol. 3 No. 2 (2024): Oktober 2024
Publisher : Divisi Riset, Lembaga Mitra Solusi Teknologi Informasi (L-MSTI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59431/jmasif.v3i2.466

Abstract

The development of a book procurement information system in libraries aims to replace inefficient manual methods with a more structured computer-based system. The designed system facilitates the recording of book data, suppliers, and procurement transactions, improving speed and accuracy in information management. A feasibility study was conducted to assess technical, operational, and financial readiness before system implementation. System analysis was carried out to identify existing challenges in the previous method, serving as the foundation for designing a new system with more optimal features. System design involves creating a normalized database to eliminate data duplication and enhance efficiency in information retrieval. System implementation includes testing and user training to ensure smooth adoption. Evaluation results indicate that this system accelerates the book procurement process, reduces recording errors, and simplifies transaction reporting. This research aligns with previous studies demonstrating that implementing a computer-based information system can enhance library service effectiveness. With a more integrated system, book management becomes more efficient, records are more accurate, and information is more accessible to users. Continuous development is expected to further adapt the system to library needs in addressing data management challenges in the digital era.
THE EFFECT OF TAX AVOIDANCE, CAPITAL STRUCTURE AND LIQUIDITY ON COMPANY VALUE WITH COMPANY SIZE AS A MODERATION VARIABLE IN INFRASTRUCTURE COMPANIES LISTED ON THE INDONESIA STOCK EXCHANGE (IDX) FOR THE 2021-2023 PERIOD Alin Riani; Amanti, Anggi Tias; Uliyah, Siti; Hakim, Mohamad Zulman; Hamdani; Hustna Dara Sarra
International Journal of Accounting, Management, Economics and Social Sciences (IJAMESC) Vol. 3 No. 1 (2025): February
Publisher : PT. ZILLZELL MEDIA PRIMA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61990/ijamesc.v3i1.430

Abstract

This study aims to examine Tax Avoidance, Capital Structure, and Liquidity on Company Value, by considering Company Size as a Moderation variable, in infrastructure companies listed on the Indonesia Stock Exchange (IDX) during the 2021-2023 period. The research population includes 69 companies, and through the purposive sampling technique, 24 companies were obtained as samples, Data analysis was carried out using E-views software 12. The result of F test show that F-value of 7.58699>2.51 of the f value of the r table and the Prob(F-statistic) value of 0.000000<0.05, it can be concluded that this model is feasible to use. The results of the study revealed that tax avoidance did not have a significant influence on the value of the company, the capital structure had a positive impact on the value of the company, while liquidity did not affect the value of the company. In addition, company size is not able to moderate the relationship between tax avoidance and company value, but it can moderate the relationship between capital structure and company value. However, company size cannot moderate the relationship between liquidity and company value.
THE EFFECT OF HALAL LABEL ON FOOD PURCHASING DECISIONS IN LHOKSEUMAWE CITY Fuadi; Aida; Hamdani; Husni Pasarela
Journal of International Islamic Law, Human Right and Public Policy Vol. 2 No. 4 (2024): December
Publisher : PT. Radja Intercontinental Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59733/jishup.v2i4.118

Abstract

This research aims to examine the influence of the Halal Label on Siomay Purchasing Decisions in Public Understanding in Lhokseumawe City. The data used in this research is primary data from 50 respondents. The method used to analyze the relationship between variables is simple linear regression analysis using the Statistical Package for the Social Sciences (SPSS) software version 25. The results of the study show that the halal label does not have significant influence on the decision to purchase dumplings in Lhokseumawe City. This implies that consumers' understanding of the use of the halal label influences the decision to purchase dumplings, with a t value that is less than the t table, namely 1.091<1.677, and a significance level of 0.281.
Pengaruh Metode Latihan Multi Ball Terhadap Ketepatan Pukulan Forehand Drive Hamdani
Pendidikan Olahraga dan Kesehatan Vol. 1 No. 1 (2024): Pendidikan Olahraga dan Kesehatan
Publisher : Yayasan Cendekia Citra Gemilang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61798/pok.v1i1.184

Abstract

Tujuan dari penelitian ini adalah untuk mengetahui apakah terdapat pengaruh metode latihan multi bola terhadap akurasi pukulan forehand drive siswa SMAS Salafiyah Babussalam. Teknik pengambilan sampel yang digunakan dalam penelitian ini adalah total sampling, dimana seluruh subjek dalam populasi diambil sebagai sampel. Sampel dalam penelitian ini terdiri dari seluruh siswa ekstrakurikuler SMAS Salafiyah Babussalam yang berjumlah 10 orang. Penelitian ini menggunakan metode eksperimen, dan analisis data dilakukan dengan melakukan uji signifikansi “t-test” untuk mengetahui tingkat signifikansi pengaruh variabel latihan multiball terhadap pukulan forehand drive, dengan menggunakan uji t-test menurut Arikunto (2006:86)Hasil pre-test dan post-test ketepatan pukulan forehand drive siswa ekstrakurikuler SMAS Salafiyah Babussalam menghasilkan nilai t hitung (to) sebesar 5,43, dengan nilai t kritis (tt) sebesar 2,26. Oleh karena itu, dapat disimpulkan bahwa tt > tt atau 5,43 > 2,26, hal ini menunjukkan bahwa terdapat pengaruh metode latihan multi bola terhadap akurasi pukulan forehand drive siswa ekstrakurikuler SMAS Salafiyah Babussalam.
An Islamic Criminal Law Perspective on the Misuse of Subsidized Fuel: Case Study of Decision No. 116/PID.B/LH/PN PSB Hamdani; Illahi, Kurnia Fitri
JLAST : Journal of Law and Social Transformation Vol. 3 No. 1 (2025): Journal of Law and Social Transformation (JLAST)
Publisher : As- Sakinah Law Firm & Society of Visual Informatics

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62527/jlast.3.1.32

Abstract

This study examines the legal considerations used by the Panel of Judges in imposing criminal sanctions on the defendant in Decision No. 116/Pid.B/LH/2023/PN Psb regarding the criminal act of misuse of government-subsidized fuel trading. Although Article 55 of Law Number 22 of 2001 on Oil and Gas stipulates a maximum penalty of six years in prison and a fine of up to Rp60,000,000,000.00, the defendant was only sentenced to six months in prison and fined Rp50,000,000.00. This study aims to analyze the judge's rationale for imposing the sanction and to examine the verdict from the perspective of Islamic criminal law. This research employs a qualitative approach using a case study method. Primary data was obtained through direct interviews with judges at the West Pasaman District Court, while secondary data was collected from books, journals, legislation, and Islamic legal sources such as the Qur’an and Hadith. The findings indicate that the judge's considerations in sentencing were based on the elements of the criminal act under Article 55 of Law No. 22 of 2001 jo. Article 55, paragraph (1) of the Criminal Code, available evidence, and aggravating and mitigating factors. Additionally, the judge considered consistency with previous decisions that have permanent legal force to prevent sentencing disparities in similar cases. From the perspective of Islamic criminal law, the defendant’s actions fall under jarimah ta'zir as they constitute an unlawful act that does not fall within hudud or qisas. While the act could be linked to the concept of al-baghyu (rebellion), the absence of violence or weapon use classifies the punishment under ta'zir, allowing the judge discretion in determining the appropriate sanction.
Pengembangan Sistem Penasehat Akademik (SIPEKAD) Menggunakan Metode User Centered Design Gunadi; Kudadiri, Parlindungan; Agustin; Hamdani; Susanti
JITSI : Jurnal Ilmiah Teknologi Sistem Informasi Vol 5 No 2 (2024)
Publisher : SOTVI - Society of Visual Informatics

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62527/jitsi.5.2.227

Abstract

STMIK Amik Riau is the first computer college in Riau Province. As the first and focused on the field of computerization, all activities carried out, whether related to work or services to students, should be computerized and mobile based. One of the services that is a problem in this research is the Academic Advisory (PA) service which is still carried out conventionally. Various problems that occur include failure to input student Study Plan Cards (KRS) into the feeder system by the Higher Education Data Base (PDPT) due to late submission, difficulty meeting lecturers for consultation due to lecturers' busy schedules, guidance times are relatively fast so students cannot convey complaints. in the lecture process as well as PA consultation sheets which are easily damaged and lost. The many problems that exist conventionally give rise to the desire to integrate all existing problems into a system that can be accessed by students online. In building a system that integrates all existing problems, the author uses a system development process in the form of the User Centered Design method. The application of this method is focused on a system built to achieve research objectives and in accordance with the wishes of the user. The results that have been achieved are implemented directly with students and provide positive feedback because of the ease with which students can meet PA lecturers to consult on problems during the lecture process as well as the ease with which lecturers can monitor the entire history of their PA students.
Tracing the Existence of Education and Training Participants Mokhlis; Heni Listiana; Hamdani; Nuri Wahda Salsabila Usmany
Amandemen: Journal of Learning, Teaching and Educational Studies Vol. 3 No. 1 (2025): Educational and Learning Innovation
Publisher : Penerbit Hellow Pustaka

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61166/amd.v3i1.81

Abstract

Education and training participants are an image where a person has changes after attending the training itself. This can be pursued with the abilities managed by the teacher according to their field of competence, because the teacher's task is not only about thinking about how the material is delivered, but also how the material provided can be influence the productivity of training participants. The objectives of this research are three things, 1) knowing the participants' expectations, 2) knowing the encouragement and motivation, and 3) knowing the performance and learning patterns of the training participants. This research uses the library research method, the primary source comes from a study of the existence of educational training participants, while the secondary data source comes from the same study or is related to this research, whether in the form of books, journals, articles, theses and other literature. . The results of this research are that: 1) the expectations of training participants can be grouped into three, namely expectations, values ​​and relationships. 2) The participants' encouragement and motivation are divided into three, namely the desire to know/learn, the need to learn and the desire for future goals. 3) Changes in participants' performance can be seen from three things, namely response, change and results.
Evaluation and Design of a Tender Document Information System, Aceh Public Works Department Hamdani; Mukhtar; Ihsanuddin
Journal Dekstop Application (JDA) Vol. 1 No. 2 (2022): December
Publisher : Divisi Riset, Lembaga Mitra Solusi Teknologi Informasi (L-MSTI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59431/jda.v1i2.314

Abstract

This study aims to evaluate and design an Auction Document Data Collection Information System at the Aceh Bina Marga Service. With the background of rapid development of information technology, there are still challenges in the effectiveness and efficiency of auction document data collection in the institution. The data collection method was carried out through field studies and literature studies. The results of the study indicate the need for the development of an effective and efficient information system to improve performance and competitiveness. The proposed system uses Visual Basic 6.0 as a development platform. This study is expected to contribute to improving auction document data management at the Aceh Bina Marga Service
ANALISIS PENINGKATAN KEANDALAN SISTEM JARINGAN DISTRIBUSI 20 KV MENGGUNAKAN METODE IDENTIFIKASI TITIK PANAS DI UNIT LAYANAN PELANGGAN (ULP ) WOHA Ilham Nuzul Firman; Hamdani; Hikmatul Fadhilah Sianipar
Jurnal Nasional Teknologi Komputer Vol 5 No 3 (2025): Juli 2025
Publisher : CV. Hawari

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

PT. PLN (Persero) merupakan perusahaan dengan sistem jaringan distribusi yang cukup luas dan selalu bertambah jumlah jaringan distribusinya. Perusahaan ini tergolong sangat baik dalam meningkatkan mutu pelayanan kepada pelanggannya. Khususnya kebutuhan pelanggan dalam bentuk energi listrik di area wilayah Nusa Tenggara Barat. Dengan jaringan sistem distribusi yang ada, analisis keandalan dapat diketahui dari bagaimana kualitas sistem distribusi terhadap gangguan yang terjadi. Untuk meningkatkan kualitas pendistribusian energi listrik, maka kinerja sistem jaringan distribusi menjadi hal pokok yang akan selalu dijaga dalam menyalurkan listrik ke pelanggan. Dalam peningkatan kualitas penyaluran sistem distribusi yaitu perhitungan indeks kehandalan berdasarkan frekuensi gangguan rata-rata (SAIFI) dan lama gangguan rata-rata (SAIDI) sebagai acuan dalam kehandalan jaringan distribusi.
Co-Authors -, M Saleh Abdul Holik, Abdul Ade Mirza Adi Sastra Pengalaman Tarigan Adisastra Pengalaman Tarigan Afriana Agung Hartoyo Agustin Agusviyanda Agusviyanda Ahmad Alim Bachri Ahmad Yani T Aida Alahuddin Ali Nurhadi Alin Riani Alvina Anggraini Alwi Amanti, Anggi Tias Ambar Lukitaningsih Anam, M Khairul Andarini Rani Prabowati Andi Azhar, Andi Azhar Andi Tenri Kawareng Andri Setiadi Anggreani, Desi Anria, Reni Aqiilah, Dian Ariani, Linda Asparizal As’ady, Mustofa Atma Hayat Audina, Nia Aulia Sandhi Kurniawan Ayu Oktaviani, Ayu Azwar Yunus Beni Satria Charli, Chintya Ones Darul Ilmi Dede Suratman Dhea Zatira Dimyati, Arjun Dwi Patlan Dona Fitriawan Dyah Nuri Mardania Edy Yusmin Elsa Audia Utami Eni Suharti Erlinda, Susi Fauzah Nur Aksa Febrianto, Hendra Galuh Firman Hakiki Fuadi Gadis Afriani Gadis Ayu Rizky Darmala Galang Reza Firdaus Budiutomo Ganefi Gerrit M. Pentury Gunadi Guslaili, Rafika Gustiar Martua Siregar Hadi Asnal, Hadi Hakim Muttaqim Hakim, Mohamad Zulman Hakim, Syahirman Hartoyo , Agung Hasbi Helen Retno Wulandari Heni Listiana Hikmatul Fadhilah Sianipar Hilmi Hilmi Husni Pasarela Hustna Dara Sarra Ida Ayu Putu Sri Widnyani Ihsanuddin Ilham Nuzul Firman Illahi, Kurnia Fitri Imam Hidayat Intan Rahmawati IRWANSYAH Ismail Isnan Murdiansyah Iswadi Jamaris, Muhammad Joko Susetyanto Jordy, Steven Julpandi Jungjungan, Muhammad Arisandi Kholdi, Faldini Kudadiri, Parlindungan Lukman M. Rasyidin M. Rimawan Maghfirah, Nurul Mahmud Maimun Markus Suryoutomo Mazidah, Isti'anatul Melinda Wijaya Melsa Putri Mochamad Ridwan Moh. Fathur Rohman mohamad rifat Mohammad Ali Al Humaidy Mohammad Solekhan Mokhlis Muchamad Arif Al Ardha Muchimah Muhammad Arief Solihin Muhammad Bambang Firdaus Muhammad Dirhamsyah Muhammad Habil Muhammad Hatta Muhammad Rasyid Ridha MUHAMMAD RIZAL Muhammad Rusdiansyah Muhammad Shohibuddin Muhibuddin Mukhtar Mulyani, Nani N.A, Randi Nafa Salsabila Ni Made Dwi Puspitawati Nonik Kusuma Ningrum Nor Hikmah Norlena Novika Rosari Nugraha, Billy Nur Efendy, Agik Nur Sulistyo Budi Ambarini Nurcahya Nurfadilah Siregar Nuri Wahda Salsabila Usmany Nurmasyitah Nurmisba Ovriyaidn Pangesti, Rizka Dhilla Dwi Pasaribu, Revi Lestari Permatasari, Reskia Dwi Pratama, Rizky Puji Muniarty Puput Qomaruddin Rahma Fitri Rahmaddeni Rahmaddeni Ramadhan, Yogi Rifansyah Rika Savitri Rikko kurnia fitra Rikko kurnia fitra Rini Andriani Rizka Donny Agung Saputra Robiatul Andawiyah Rohwati, Siti Romi Asmara Rustam Efendi Saiful Bahgia Saleh, M Sandy Prabowo Sapto Wibowo Saputra, Syifa Sari Yulis Terfiadi Saryana Septiza Siti Lathifah, Suci Slamet Sofyan Jafar Soleha Sonia Nadia Muslimah Sopan Hidayat Sri Murni Sri Sudono Saliro Sugiatno . Suharno, Muhammad Iqbal Susandri, Susandri SUSANTI Susetyanto, Joko SUSI ERLINDA Sustari Alamsyah Syabarrudin, Agus Syadella Nur Aqilla Syaiful Amin T.Sy Eiva Fadha Tahir, Muhlis Tajul Munir Teuku Yudi Afrizal Thorik Satria Ilmi Tiara Tomo Djudin Triyani Arita Fitri Udiannoor Ulfah Fajarini Uliyah, Siti Wahyu WAHYUDI Wahyudin Wedra Aprison Winata, Nugraha Pandu Yanti, Asri Vivi Yola Dyfa Meisari Yonnedi, Efa Yudith Evametha Vitranilla Zulfadli