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All Journal Jurnal Computer Science and Information Technology (CoSciTech) Jurnal Siteba
Tan, Vincent
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Automotive Engineering Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Engineering

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Implementasi Algoritma Argon2 untuk Pengamanan Password pada Sistem Jaringan Client-Server Lim, Fernandoz; Candra, Samuel; Safitri, Novelia; Saputri, Khairunnisa; Shiddieqy, Alfana Hasbi; Tan, Vincent; Farizki Abdillah, Muhammad Iqbal
JURNAL SITEBA Vol. 4 No. 1 (2026): Jurnal Sistem Informasi ITEBA
Publisher : LPPM-ITEBA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62375/pa3gfc24

Abstract

Penelitian ini membahas implementasi algoritma password hashing Argon2id sebagai metode penguatan keamanan autentikasi pada sistem client–server. Argon2, pemenang Password Hashing Competition (PHC) tahun 2015, dirancang sebagai memory-hard function yang secara intensif memanfaatkan memori dan CPU untuk menghambat serangan brute-force dan GPU cracking berbasis paralel. Dalam studi ini, algoritma diimplementasikan pada proses enkripsi dan verifikasi kata sandi, serta dianalisis berdasarkan tingkat keamanan, kompleksitas komputasi, dan efektivitasnya dibandingkan dengan algoritma hash konvensional seperti MD5 dan SHA-256. Pengujian performa (Benchmarking) menunjukkan bahwa Argon2id membutuhkan waktu rata-rata 202,2238 ms, yang secara signifikan lebih lambat (sekitar 2.229 kali lebih lambat dari MD5 dan 1.111 kali dari SHA-256), sehingga efektif memberikan penalti waktu untuk mitigasi serangan. Selain itu, Avalanche Effect (Uji Kualitas Kriptografi) menghasilkan tingkat perubahan bit sebesar 34,39%, yang tergolong "Sangat Baik" dan membuktikan kemampuan difusi serta ketahanan terhadap analisis pola data. Implementasi Argon2id terbukti menghasilkan hash yang kuat dan tahan terhadap serangan brute-force berbasis paralel, sehingga meningkatkan keamanan autentikasi serta memberikan perlindungan lebih baik terhadap risiko kebocoran kata sandi dalam lingkungan sistem modern.
the Sistem Pakar Analisis Love Language untuk Menilai Kualitas Komunikasi Pasangan Milenial Menggunakan Forward Chaining dan Certainty Factor: Indonesia Caniago, Deosa Putra; Tan, Vincent; Pakpahan, Sindy Silvia Soarta; Susyantika, Salsabila Adine; Sulthony, M Rachmat; Aswirawan, Maria Yosefina Meinadia Sekar Kinanti
Computer Science and Information Technology Vol 7 No 1 (2026): Jurnal Computer Science and Information Technology (CoSciTech)
Publisher : Universitas Muhammadiyah Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37859/coscitech.v7i1.10598

Abstract

This research aims to analyze the influence of love language on communication quality among millennial couples in Indonesia. Millennials, who are highly immersed in digital interaction, tend to communicate quickly and text-based, making romantic interactions dynamic yet prone to misunderstanding. A quantitative survey was conducted involving 180 respondents aged 22–35 who had been in a relationship for at least one year. A Likert-scale questionnaire measured preferences across the five love language categories—Words of Affirmation, Quality Time, Acts of Service, Physical Touch, and Receiving Gifts, as well as communication quality indicators including openness, clarity, trust, and emotional intimacy. Findings indicate that all five love languages significantly affect communication quality, each with varying levels of influence. Quality Time emerged as the most dominant category with an estimated tendency of 92–96%, followed by Words of Affirmation with a dominance level above 85%. These results suggest that understanding and adapting to one’s partner’s love language can serve as an effective communication strategy to increase emotional closeness, reduce conflict, and strengthen relationship harmony among millennial couples.
Co-Authors Candra, Samuel Caniago, Deosa Putra Farizki Abdillah, Muhammad Iqbal Lim, Fernandoz Maria Yosefina Meinadia Sekar Kinanti Aswirawan Pakpahan, Sindy Silvia Soarta Safitri, Novelia Saputri, Khairunnisa Shiddieqy, Alfana Hasbi Sulthony, M Rachmat Susyantika, Salsabila Adine