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Perbandingan Penggunaan Algoritma Kriptografi DES, RSA, Modifikasi DES dan Modifikasi RSA untuk Penyandian Database Triloka Mahesti; Arum Febriyanti Ciptaningtyas; Agni Astungkara
Jurnal Ilmiah ILKOMINFO - Ilmu Komputer & Informatika Vol 8, No 1 (2025): Januari
Publisher : Akademi Ilmu Komputer Ternate

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47324/ilkominfo.v8i1.294

Abstract

Abstrak: Pengembangan ilmu kriptografi mendukung penyimpanan data yang terkomputerisasi karena berhubungan dengan keamanan data perusahaan yang dapat berpengaruh pada operasional perusahaan. Penelitian ini bertujuan melakukan eksplorasi teknik kriptografi symmetric dan asymmetric yang banyak digunakan yaitu Data Encryption Standard (DES) dan Rivest-Shamir-Adleman (RSA). Penelitian ini melakukan modifikasi algoritma DES dan algoritma RSA pada proses enkripsinya. Penelitian ini mengimplementasikan empat algoritma kriptografi yaitu DES, modifikasi DES, RSA dan modifikasi RSA. Penelitian menunjukkan, proses enkripsi algoritma RSA memiliki waktu yang lebih cepat daripada algoritma DES, tetapi algoritma DES memiliki pengamanan lebih baik dibanding dengan algoritma RSA karena proses perhitungannya yang cukup rumit dan sulit. Hasil modifikasi algoritma DES menunjukkan hasil yang kurang baik karena hasil enkripsi memiliki nilai ASCII yang rendah, sehingga jika dikonversi akan menghasilkan karakter ASCII yang tidak nampak. Pada modifikasi algoritma RSA ketika dipilih nilai p dan q yang besar yaitu 19 dan 37, akan membantu proses enkripsi agar nilai ASCII yang tetap dapat dikonversi dalam karakter ASCII. Hal ini memperlihatkan bahwa modifikasi algoritma RSA memiliki hasil yang lebih baik dari modifikasi algoritma DES. Penelitian selanjutnya dapat dilakukan penggabungan algoritma DES dan algoritma RSA yang dilakukan secara sequence untuk melakukan enkripsi data yang lebih rumit, hal ini untuk menghindari penyalahgunaan data.Kata kunci: Data Encryption Standard, Rivest-Shamir-Adleman, KriptografiAbstract: The development of cryptography supports computerized data storage because it relates to the security of company data which can affect company operations. This research aims to explore symmetric and asymmetric cryptography techniques that are widely used, namely Data Encryption Standard (DES) and Rivest-Shamir-Adleman (RSA). This research modified the DES algorithm and RSA algorithm in the encryption process. This research implements four cryptographic algorithms namely DES, modified DES, RSA and modified RSA. The research shows that the RSA algorithm encryption process has a faster time than the DES algorithm, but the DES algorithm has better security than the RSA algorithm because the calculation process is quite complicated and difficult. The results of the DES algorithm modification show poor results because the encryption results have low ASCII values, so if converted will produce ASCII characters that are not visible. In the RSA algorithm modification when a large p and q value is chosen, namely 19 and 37, it will help the encryption process so that the ASCII value can still be converted into ASCII characters. This shows that the RSA algorithm modification has better results than the DES algorithm modification. Future research can be done by combining the DES algorithm and RSA algorithm in sequence to encrypt more complicated data, this is to avoid data misuse.Keywords: Data Encryption Standard, Rivest-Shamir-Adleman, Cryptography
The Role of the COBIT 5 Framework in IT Governance Triloka Mahesti; Muhamad Sidik
JUKI : Jurnal Komputer dan Informatika Vol. 8 No. 1 (2026): JUKI : Jurnal Komputer dan Informatika, Edisi Mei 2026
Publisher : Yayasan Kita Menulis

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53842/juki.v8i1.2324

Abstract

The rapid growth of information technology requires effective governance to ensure alignment with organizational goals, often evaluated using the COBIT 5 framework. This study audits SIKADU, the information system at SMKN 2 Salatiga, to assess its support for strategic objectives across five domains: MEA, DSS, APO, BAI, and EDM. The findings reveal an overall capability level of 2 (Managed Process), falling short of the expected level 3. Specific scores show that while the DSS domain reached level 3.0, others lagged behind, including MEA (2.3), APO (1.8), EDM (1.5), and BAI (1.3). This performance gap indicates that while processes are managed, they are not yet fully standardized. Consequently, the audit provides a strategic roadmap and actionable recommendations to bridge these gaps, helping SMKN 2 Salatiga refine its IT governance and improve the maturity of its SIKADU system.
GENERASI Z DAN KEMANDIRIAN FINANSIAL? PERAN FRUGAL LIVING DAN LITERASI KEUANGAN TERHADAP PERILAKU MANAJEMEN KEUANGAN DENGAN GENDER SEBAGAI VARIABEL PEMODERASI Agni Astungkara; Arum Febriyanti Ciptaningtias; Triloka Mahesti
Jurnal Akuntansi dan Pajak Vol. 25 No. 2 (2025): JAP, Vol. 25, No. 02, Agustus 2024 - Januari 2025
Publisher : ITB AAS Indonesia

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

Abstract

In a dynamic economy, the ability to survive is essential. One strategy to survive is to have financial independence. Financial independence can be achieved with good financial management. This study examines the effect of frugal lifestyle (frugal living), financial literacy, and gender on financial management behavior. The sample of this research is 88 students at a state university in Semarang city. With regression analysis techniques, this study shows the results that frugal living and financial literacy have a significant positive effect on financial management behavior. Gender variables are also able to moderate the influence of frugal living and financial literacy on financial management behavior. This research is presented to be able to encourage generation Z in conducting financial management as an effort to achieve financial independence.
PENGARUH FINANCIAL TECHNOLOGY, FINANCIAL KNOWLEDGE DAN FINANCIAL ATTITUTE TERHADAP FINANCIAL MANAGEMENT BEHAVIOUR MAHASISWA Arum Febriyanti Ciptaningtias; Agni Astungkara; Triloka Mahesti
Jurnal Akuntansi dan Pajak Vol. 25 No. 2 (2025): JAP, Vol. 25, No. 02, Agustus 2024 - Januari 2025
Publisher : ITB AAS Indonesia

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

Abstract

The development of financial technology can change the way people conduct financial transactions and quickly convert cash transactions to cashless. This research aims to determine the effect of financial technology, financial knowledge, and financial attitude on bachelor students' financial management behavior. The research methodology used is a quantitative approach, utilizing primary data obtained from 88 questionnaire answers. Data were analyzed using descriptive statistical analysis, instrument test, normality test, multiple regression analysis, and hypothesis testing. The test was assisted by SPSS 22 software. The results show that financial knowledge and financial attitude affect financial management behavior partially. Meanwhile, financial technology has no effect toward financial management behavior partially. Keywords: Financial Technology, Financial Knowledge, Financial Attitude, Financial Management Behaviour