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All Journal TELKOMNIKA (Telecommunication Computing Electronics and Control) Bulletin of Electrical Engineering and Informatics Jurnal Informatika Jurnal Sarjana Teknik Informatika Jurnal Simantec Telematika : Jurnal Informatika dan Teknologi Informasi Jurnal Teknologi Informasi dan Ilmu Komputer Scientific Journal of Informatics JTET (Jurnal Teknik Elektro Terapan) IJID (International Journal on Informatics for Development) Mobile and Forensics Journal of Community Empowerment for Health Jurnal Berdaya Mandiri Malcom: Indonesian Journal of Machine Learning and Computer Science Jurnal Informatika: Jurnal Pengembangan IT
Eko Aribowo
Universitas Ahmad Dahlan
Religion Aerospace Engineering Agriculture, Biological Sciences & Forestry Arts Humanities Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Dentistry Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Health Professions Immunology & microbiology Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Materials Science & Nanotechnology Mathematics Mechanical Engineering Medicine & Pharmacology Neuroscience Nursing Physics Public Health Social Sciences Transportation Veterinary Other

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Implementation and Performance Analysis of PVD Method in Concealing Encrypted Data on Images Hanif, Ardhan; Astuti, Nur Rochmah Dyah Puji; Aribowo, Eko
IJID (International Journal on Informatics for Development) Vol. 14 No. 1 (2025): IJID June
Publisher : Faculty of Science and Technology, UIN Sunan Kalijaga Yogyakarta

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

Abstract

This research aims to secure text data by combining steganography and cryptography. The Pixel Value Differencing (PVD) method allows for higher data insertion capacity with minimal distortion, thereby increasing resistance to steganalysis. However, the PVD steganography method is vulnerable to variation in image areas and to the accuracy of Pixel Difference Histogram (PDH) analysis. In addition, this method is susceptible to statistical tools such as the chi-square and RS, which can be used to analyze the distribution of pixel value differences, allowing data to be detected. To address the limitations of the PVD method, we employed a cryptographic technique called XOR-VLSB, which combines XOR as the primary encryption method, Vigenère Cipher for key generation, and Least Significant Bit (LSB) for key embedding. The results showed that the fully encrypted data could be recovered and had good image quality, as indicated by the metric results, which included a low MSE value, a PSNR above 35 dB, and an SSIM value close to 1. In this study, the process of encrypting text data still uses a simple encryption algorithm, namely XOR. Future research may involve replacing cryptographic algorithms with AES, which offers stronger protection and better resistance to advanced security threats.
Studi Pendekatan Quality & Differential Analysis TerhadapKinerja Algoritma AES-CBC pada Enkripsi Gambar Gafur, Sartika; Aribowo, Eko
Jurnal Teknologi Informasi dan Ilmu Komputer Vol 12 No 5: Oktober 2025
Publisher : Fakultas Ilmu Komputer, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25126/jtiik.2025125

Abstract

Penelitian ini mengeksplorasi pendekatan Quality & Differential Analysis untuk menilai kinerja algoritma AES-Cipher Block Chaining (AES-CBC) pada enkripsi gambar dengan resolusi 512 x 512 piksel. Algoritma AES-CBC dipilih karena kemampuannya menyediakan enkripsi blok yang aman dan efisien terhadap data berstruktur pada gambar berekstensi *.jpg, *.jpeg, *.png, *.gif, *.bmp, *.tiff, *.webp, *.heic, *.heif, *.svg, *.raw, *.psd, dan *.ico. Penelitian ini menggunakan tujuh metrik evaluasi yang komprehensif: Encryption Quality (MSE, RMSE, PSNR, SSIM) dan Differential Analysis (NPCR, UACI, CC), yang lebih komprehensif dibandingkan beberapa penelitian sebelumnya yang umumnya hanya menggunakan dua atau tiga metrik. Hasil penelitian menunjukkan bahwa algoritma AES-CBC mampu menghasilkan enkripsi gambar yang kuat, dengan nilai MSE dan RMSE sebesar 0.0, PSNR tak terhingga (inf dB), dan SSIM 1.0. Nilai NPCR berkisar antara 99.97% hingga 100%, UACI antara 49.87% hingga 50.26%, dan CC antara -0.0055 hingga 0.007, menunjukkan kemampuan algoritma dalam menangani perubahan diferensial. Penelitian ini memberikan wawasan mendalam tentang efektivitas algoritma AES-CBC dalam mengamankan file gambar dan menawarkan analisis menyeluruh tentang kualitas enkripsi dan ketahanannya terhadap serangan diferensial. Hasil penelitian ini diharapkan dapat berkontribusi pada pengembangan teknik enkripsi yang lebih aman di masa depan.   Abstract This research explores Quality & Differential Analysis approach to assess the performance of AES-Cipher Block Chaining (AES-CBC) algorithm on image encryption with 512 x 512 pixels resolution. The AES-CBC algorithm was chosen for its ability to provide secure and efficient block encryption of structured data in images with the extensions *.jpg, *.jpeg, *.png, *.gif, *.bmp, *.tiff, *.webp, *.heic, *.heif, *.svg, *.raw, *.psd, and *.ico. This research uses seven comprehensive evaluation metrics: Encryption Quality (MSE, RMSE, PSNR, SSIM) and Differential Analysis (NPCR, UACI, CC), which is more comprehensive than some previous studies that generally only use two or three metrics. The results show that the AES-CBC algorithm is able to produce strong image encryption, with MSE and RMSE values of 0.0, PSNR infinity (inf dB), and SSIM 1.0. NPCR values range from 99.97% to 100%, UACI between 49.87% to 50.26%, and CC between -0.0055 to 0.007, demonstrating the algorithm's ability to handle differential changes. This research provides an in-depth insight into the effectiveness of the AES-CBC algorithm in securing image files and offers a thorough analysis of its encryption quality and resistance to differential attacks. The results of this research are expected to contribute to the development of more secure encryption techniques in the future.
PELATIHAN IMPLEMENTASI IoT PENGONTROL KUALITAS AIR BERBASIS WEB DI KOLAM IKAN MINA NGREMBOKO Pramono, Dedi; Widyatama, Rendra; Aribowo, Eko; Saputra, Rendie Abdi
Jurnal Berdaya Mandiri Vol. 7 No. 3 (2025): JURNAL BERDAYA MANDIRI (JBM)
Publisher : Universitas PGRI Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31316/jbm.v7i3.8596

Abstract

This training aims to provide understanding and skills to partners of Mina Ngremboko fish farmers in Bokesan Hamlet, Sindumartani, Ngemplak, Sleman, Yogyakarta. The problem for fish farmer partners lies in the ineffectiveness of controlling pond water quality. So far, partners have used titen science, so the accuracy of water conditions cannot be properly known. This training is to introduce a water control device by implementing IoT (Internet of Things) that can control water acidity (pH): 6.5-8.5, dissolved oxygen conditions: 5mg/L, and water temperature: 20-30’C. This tool can operate automatically so that partners can know the condition of the pond water in real-time using the web. In this case, partners can check the water condition from their mobile phones or laptops anywhere. This training is beneficial as evidenced by the increased understanding of knowledge about IoT implementation through the results of the average pre-test score on a scale of 100 of 61.20 and the average post-test score of 85.83. This data shows an increase in understanding of 24.63 points. As for attitudes and skills towards IoT which are detailed in 3 (three) categories, namely (1) attitudes towards technological innovation, the results obtained are the percentage of partners who agree and strongly agree in the pre-test score of 88 and post-test 96, (2) perception of the benefits of technology, pre-test score 86 and post-test 95, and (3) perception of ease of use, pre-test score 86 and post-test 91. This shows that the attitudes and skills of Mina Ngremboko fish farmers have had quite high support for the application of technology from the start. Thus, this training proves that the implementation of IoT as a web-based water quality controller can be implemented optimally. Keywords: Web-based IoT, training, water quality controller, Mina Ngremboko
Implementation and Performance Analysis of PVD Method in Concealing Encrypted Data on Images Hanif, Ardhan; Astuti, Nur Rochmah Dyah Puji; Aribowo, Eko
IJID (International Journal on Informatics for Development) Vol. 14 No. 1 (2025): IJID June
Publisher : Faculty of Science and Technology, Universitas Islam Negeri (UIN) Sunan Kalijaga Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14421/ijid.2025.4984

Abstract

This research aims to secure text data by combining steganography and cryptography. The Pixel Value Differencing (PVD) method allows for higher data insertion capacity with minimal distortion, thereby increasing resistance to steganalysis. However, the PVD steganography method is vulnerable to variation in image areas and to the accuracy of Pixel Difference Histogram (PDH) analysis. In addition, this method is susceptible to statistical tools such as the chi-square and RS, which can be used to analyze the distribution of pixel value differences, allowing data to be detected. To address the limitations of the PVD method, we employed a cryptographic technique called XOR-VLSB, which combines XOR as the primary encryption method, Vigenère Cipher for key generation, and Least Significant Bit (LSB) for key embedding. The results showed that the fully encrypted data could be recovered and had good image quality, as indicated by the metric results, which included a low MSE value, a PSNR above 35 dB, and an SSIM value close to 1. In this study, the process of encrypting text data still uses a simple encryption algorithm, namely XOR. Future research may involve replacing cryptographic algorithms with AES, which offers stronger protection and better resistance to advanced security threats.
Association of the VEGF +405C/G gene polymorphism with diabetic retinopathy in an Indonesian (Yogyakarta) population Supanji, Supanji; Romdhoniyyah, Dewi Fathin; Maharani, Dinda Mutiara; Putri, Aurelia Priscilla Regita; Felisha, Hifdza Faza; Indrawati, Vera Nurohmah; Hasanah, Ummi Noor; Widya, Shanti; Imawati, Nurul; Aribowo, Eko; Adisetiadi, Agit Seno; Revana, Eva; Winarti, Tri; Ikhsan, Muhammad Robikhul; Susanti, Vina Yanti; Prayogo, Mohammad Eko; Wardhana, Firman Setya; Sasongko, Muhammad Bayu
Journal of Community Empowerment for Health Vol 9, No 1 (2026)
Publisher : Faculty of Medicine, Public Health, and Nursing, Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jcoemph.113213

Abstract

Introduction: Diabetic retinopathy (DR) remains a major cause of vision loss, and while chronic hyperglycemia drives its pathogenesis, inconsistent findings on the VEGF +405G/C polymorphism and the absence of Indonesian data highlight the need to clarify potential genetic susceptibility. The purpose is to determine the association between the VEGF +405C/G rs2010963 gene polymorphism and the risk of diabetic retinopathy (DR) in an Indonesian population.Methods: Our observational case-control study enrolled 100 type-2 diabetes mellitus patients (50 DR patients vs. 50 non-DR)  who underwent comprehensive clinical and ophthalmic examinations. Genomic DNA was extracted from peripheral blood samples, and the VEGF +405C/G rs2010963 polymorphism was genotyped using RFLP-PCR, with results confirmed by sequencing.Results: Our study included a total of 100 participants with no significant differences in baseline characteristics other than poorer visual acuity and significantly higher LDL and lower HDL levels in the DR case group. Allelic and genotypic distributions of the VEGF +405 rs2010963 polymorphism were similar between both groups, with HWE equilibrium analysis showing no significant deviation. Neither crude (GG; crude OR 0.32 [0.87 - 1.21]), age and sex-adjusted analysis (0.41 [0.11 - 1.60]), nor blood pressure, HbA1c level, BMI, and smoking status-adjusted OR of 0.38 (0.70 - 2.06), demonstrated a significant association between VEGF +405 rs2010963 polymorphisms and DR risk in our cohorts.Conclusion: Our study suggests that VEGF +405C/G polymorphisms may not serve as an independent risk factor for DR in the Indonesian population.
PENGEMBANGAN SISTEM INFORMASI PELAYANAN DESA PLAWIKAN DENGAN METODE EXTREME PROGRAMMING Amalia yulianoor; Eko Aribowo
Jurnal Simantec Vol 12, No 1 (2023): Jurnal Simantec Desember 2023
Publisher : Universitas Trunojoyo Madura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/simantec.v12i1.22792

Abstract

Teknologi informasi dan komunikasi membawa hagoslot beragam manfaat guna berlangsungnya kehidupan manusia, salah satunya ialah penyediaan layanan publik melalui platform internet. Namun dengan pesatnya perkembangan teknologi informasi proses pembuatan surat masih dilakukan secara manual dan memerlukan kehadiran di kantor desa untuk mengantri hal ini menyebabkan tidak efisien dalam hal waktu. Desa Plawikan juga memiliki hasil UMKM yang menjadi ciri khas desa yaitu pembuatan stik sukun namun, dengan belum adanya wadah untuk mempublikasi hasil desa maka hasil penjualan tidak maksimal. Maka dari itu dibuat sistem informasi pelayanan Desa Plawikan menggunakan metode Extreme Programming. Metode Extreme Programming memiliki 4 tahap yaitu Planning, Design, Coding, dan Testing. Metode Extreme Programming dipilih karena metode tersebut fleksibel terhadap perubahan-perubahan yang mungkin akan terjadi selama proses pembuatan sistem. Pengujian sistem informasi berbasis website ini menggunakan metode Black Box dan metode System Usability Scale (SUS). Hasil pengujian dengan metode Black Box yang melibatkan 23 aktivitas mendapatkan nilai 100% yang berarti sistem dapat berjalan dengan optimal, sedangkan metode System Usability Scale Testing yang melibatkan 20 responden memperoleh skor SUS sebesar 1421,5 dengan nilai rata-rata 71,075. Skor tersebut menunjukan bahwa hasil pengujian SUS pada sistem berada di kanan, menandakan sistem tersebut berjalan dengan baik dan dapat diterima (GOOD). Setelah adanya sistem informasi pelayanan Desa Plawikan diharapkan dapat membantu meningkatkan pelayanan perangkat desa dalam melayani masyarakat dan setelah adanya wadah untuk mempublikasikan hasil UMKM desa ekonomi masyarakat desa semakin meningkat.Kata kunci: Desa, Extreme Programming, Pelayanan Publik, Sistem Informasi
Co-Authors - Disman Abdul Aziz Purnomo Achmad Lutvi Adisetiadi, Agit Seno Ahmad Miki Supriyatno Alfian Nur Hidayat Ali Tarmuji Amalia yulianoor Andana Paringga Ari Kusuma Wardana Arif Aditia Danang Tri Atmojo Dedi Pramono Dzikrianasa, Muhammad Raihandaffa Edy Nugroho Edy Nugroho Elena Yustina Elena Yustina Erna Kharistiani Faqihuddin Al-Anshori Felisha, Hifdza Faza Fiftin Noviyanto Gafur, Sartika GITA FADILA FITRIANA Hanif, Ardhan Hasanah, Ummi Noor Herlambang, Prasetyo Hery Dewantoro Ibnu Abdullah Apriyanto Ibnu Sulistyo Ikhsan, Muhammad Robikhul Imawati, Nurul Indra Pramana Indrawati, Vera Nurohmah Ismu Nugraha Khairul Putra Siregar Luh Putu Ratna Sundari Lusia Pusvita Dewi Maharani, Dinda Mutiara Mohammad Eko Prayogo Muh Masruri Mustofa Muhamad Rijal Faqih Mulyadin Mulyadin Murinto Murinto Noki Hamda Novita Wulandari Nugroho, Edy Nur Rochmah Dyah P.A Nur Rochmah Dyah Pujiastuti Orisky Sitra Arifah Destiyati Prade Septo Nugroho Prasetyo Herlambang Prasetyo Herlambang Putri, Aurelia Priscilla Regita Ratih Rifaatul Mahmudah Rendra Widyatama Revana, Eva Richo Dede Gusti S Rizal Pratama Putra Romdhoniyyah, Dewi Fathin Saputra, Rendie Abdi Sasongko, Muhammad Bayu Son Ali Akbar Sunardi, Sunardi Supanji, Supanji Susanti, Vina Yanti T.Indra Wardana Tri Winarti Tri Yani Wijayanti Trianto Juliatmojo Wardhana, Firman Setya Wibowo, Duwi Anjar Ari Wibowo, Merlinda Widya, Shanti yulianoor, Amalia Yustina, Elena