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All Journal MEANS (Media Informasi Analisa dan Sistem) Jurnal SAINTIKOM (Jurnal Sains Manajemen Informatika dan Komputer) Jurnal Pengabdian Masyarakat IPTEK Bulletin of Information Technology (BIT) Brilliance: Research of Artificial Intelligence Jurnal Nasional Teknologi Komputer Jurnal Pemberdayaan Sosial dan Teknologi Masyarakat Jurnal Informatika dan Perancangan Sistem (JIPS) Jurnal Sains dan Teknologi Informasi Management of Information System Journal Journal Of Computer Engineering And Information Technology JISTI: Jurnal Ilmu Komputer, Sistem Informasi dan Teknologi Informasi Jurnal Pengabdian Kepada Masyarakat Teknologi Informasi dan Komunikasi
Sri Novida Sari
Politeknik Negeri Medan
Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Education Electrical & Electronics Engineering Languange, Linguistic, Communication & Media Mathematics Mechanical Engineering Social Sciences Other

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Keamanan Multimedia untuk Menjamin Keaslian Konten menggunakan Digital Signature Berbasis Algoritma RSA Dito Putro Utomo; Bister Purba; Sri Novida Sari; Alyiza Dwi Ningtyas
Jurnal Sains dan Teknologi Informasi Vol 5 No 4 (2026): September 2026
Publisher : Forum Kerjasama Pendidikan Tinggi (FKPT)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47065/jussi.v5i4.11358

Abstract

Multimedia content security has become a challenge as the distribution and manipulation of digital files become increasingly easy. This study aims to implement a digital signature based on the Rivest–Shamir–Adleman (RSA) algorithm to support the verification of multimedia content authenticity and integrity. The methods include problem identification, model design, implementation of the SHA-256 hash function, signature generation using a private RSA key, and verification using a public key. Testing was designed for six multimedia formats, namely JPEG, PNG, MP3, WAV, MP4, and AVI, using parameters including file size, hash value changes, verification status, signing time, verification time, and verification success rate. Based on the testing scenario, file sizes ranged from 2.50 to 82.70 MB. Signing time ranged from 0.012 to 0.038 seconds, with an average of 0.0218 seconds, while verification time ranged from 0.004 to 0.010 seconds, with an average of 0.0063 seconds. Testing across 12 conditions, consisting of six original files and six modified files, yielded a verification success rate of 100%, based on the assumption that all results matched the expected conditions. Hash value changes were used to identify changes in file content after manipulation. These results illustrate the potential of RSA for supporting multimedia integrity verification. However, empirical testing is still required to validate all values and objectively assess system performance.
Co-Authors Abdul Khaliq Ade Rizka Afifa, Rizky Maulidya Afrisawati Afrisawati Aini, Sarah Alyiza Dwi Ningtyas Amir Saleh An Nisa Dian Rahma Andari, Ayu Ardianto Pranata Arif Hamied Nababan Asprina Br Surbakti, Asprina Br Asyadila Bister Purba Cut Try Utari Dalimunthe, Aulia Rahman David JM Sembiring David JM. Sembiring David Jumpa Malem Sembiring Dewi Yohana br Ginting Dinda Triani Dini Rizqi Dwikunti Siregar Dito Putro Utomo Donny Sanjaya Eka Feby Ronauli Lubis Evi Andrika Faza, Sharfina Indri Sulistianingsih Intan Rahayu Juanda Julham Julham Kaban, Roberto Khairani Khairani Michael Stevano Sinurat Muhammad Riki Atsauri Muhammad Zenny Prananda Naim, Muhammad Akmal Nasution, Intan Suhelfi Nirwan Sinuhaji Pranata, Ardianto Putri Annisa Putri Ramadhani Br. Sembiring Rama Prameswara Ritonga Rani, Selvia Rizka, Ade Rizky Maulidya Afifa Rizky Vita Losi Losi Romulo Aritonang S Sumarlin Sulistianingsih, Indri Sumarlin Surizar Rahmi Danur Surya Fajar Siddiq Syahada Sabanu Tasril, Virdyra Virdyra Tasril