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Ade Zulkarnain Hasibuan
Universitas Samudra
Computer Science & IT Library & Information Science

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Analisis Metode Weight Product untuk Penyiangan Buku Ade Zulkarnain Hasibuan
Jurnal Ilmu Komputer dan Sistem Informasi Vol. 3 No. 3 (2024): September 2024
Publisher : LKP Unity Academy

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70340/jirsi.v3i3.170

Abstract

Book weeding is an important activity carried out to maintain the quality of library collections, ensuring that the books available are relevant and useful for users. Decision support system is a field of computer science that can help speed up the book weeding process, one of the methods that can be used is Weight Product. The Weight Product method was chosen because of its ability to handle multi-criteria and provide appropriate weights for each set of criteria. In this study, the criteria used for book weeding include book condition, year of publication, number of books, frequency of borrowing, and books that have the latest edition. Data is collected through surveys and statistical analysis of the existing book collection. Next, the Weight Product method is applied to calculate the final value of each book based on the predetermined criteria. The results of this calculation are used to identify books that deserve to be removed from the library collection. The results show that the application of the Weight Product method can improve the efficiency and effectiveness of the book weeding process. By using this method, libraries can make more objective and data-based decisions in determining which books need to be removed. In addition, this research also provides recommendations for other libraries who want to apply a similar method in their weeding process. Thus, this research not only contributes to the development of book weeding methods, but also provides new insights into the overall management of library collections.
Pengembangan Algoritma Vigenere Cipher Berbasis Kunci Dinamis Dalam Pengamanan Pesan Teks Munjiat Setiani Asih; Rismayanti Rismayanti; M Imam Fadhlurahman; Ade Zulkarnain Hasibuan
Jurnal Ilmu Komputer dan Sistem Informasi Vol. 4 No. 1 (2025): Januari 2025
Publisher : LKP Unity Academy

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70340/jirsi.v4i1.178

Abstract

This research aims to develop a dynamic key-based Vigenère Cipher algorithm as a solution to improve the security of text messaging. Vigenère Cipher is one of the classical cryptographic methods that has a weakness against frequency analysis, especially when the key used is static. In this study, we propose a new approach by implementing a dynamic key that changes every time a message is sent. This dynamic key is generated through a pseudorandom algorithm that considers the time of transmission and the characteristics of the message. The research methodology includes analyzing cryptography theory, algorithm implementation, and testing the effectiveness and efficiency in encrypting and decrypting messages. The test results show that the developed algorithm not only improves message security through higher key complexity, but also maintains the speed of encryption and decryption processes. In addition, analysis of various message delivery scenarios shows that the algorithm is able to overcome frequency analysis attacks that are often a threat in traditional cryptographic methods. With these results, this research makes a significant contribution to the development of more secure and practical text message security systems, and opens up opportunities for further applications in the field of modern cryptography.
Co-Authors Asih, Munjiat Setiani M Imam Fadhlurahman Rismayanti Rismayanti