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All Journal TELKOMNIKA (Telecommunication Computing Electronics and Control) Jurnal technoscientia Jurnal Teknologi Jurnal Script Jurnal Jarkom Techno (Jurnal Fakultas Teknik, Universitas Muhammadiyah Purwokerto) E-Dimas: Jurnal Pengabdian kepada Masyarakat Journal of Dedicators Community CARADDE: Jurnal Pengabdian Kepada Masyarakat Dharma Bakti Jurnal Abdimas PHB : Jurnal Pengabdian Masyarakat Progresif Humanis Brainstorming Indonesian Journal of Electrical Engineering and Computer Science JURNAL TEKNOLOGI TECHNOSCIENTIA Prosiding SNAST Jurnal Abdimas Kartika Wijayakusuma Journal of Fundamental Mathematics and Applications (JFMA) IJCOSIN : Indonesian Journal of Community Service and Innovation Techno Prosiding Simposium Nasional Rekayasa Aplikasi Perancangan dan Industri Jurnal Teknologi
Catur Iswahyudi
Institut Sains & Teknologi AKPRIND Yogyakarta
Agriculture, Biological Sciences & Forestry Arts Humanities Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mechanical Engineering Public Health Social Sciences Other

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Journal : JURNAL TEKNOLOGI TECHNOSCIENTIA

 1 
OPTIMASI ALGORITMA SUPER ENKRIPSI UNTUK MENINGKATKAN PENGAMANAN DATA CITRA DIGITALDALAM PENGIRIMAN MMS PADA PIRANTI CERDAS Setyaningsih, Emy; Iswahyudi, Catur; Widyastuti, Naniek
JURNAL TEKNOLOGI TECHNOSCIENTIA Technoscientia Vol 5 No 2 Februari 2013
Publisher : Lembaga Penelitian & Pengabdian Kepada Masyarakat (LPPM), IST AKPRIND Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34151/technoscientia.v5i2.536

Abstract

Advances in technology have made communication and information technology functions into convergent and known as ICT (Information and Communication Technology). Internet and smart devices have an important role as a medium for multimedia convergence at this time. Mobile communications technology also developed rapidly, as well as the development of features that support services in the GSM system, among others, is MMS (Multimedia Messaging Service) that allows data transmission such as images, audio, and video.Computational complexity becomes an important concern in the development of cryptographic techniques on smart devices in the limited of bandwidth on wireless networks, also limited processing, memory, and time. This paper will discuss the security of image message using the concept of super encryption to optimize security of encryption key that adopts the concept of steganography method called End Of File (EOF). Applications built able to combine the speed, security, and flexibility so as to produce a good combination of speed, high security, complexity, reasonable computational overhead, and computational power.Image encryption algorithm is successfully implemented on a smart device with Android based operating system. Application also has the fastprocess and efficient computing resource. These are evidenced by the average time of encryption for image size of 256 x 256 pixels at 0.75 seconds and the image with a size of 480 x 640 pixels at 2.09 seconds. Average time decryption to image size of 256 x 256 pixels by 0.58 seconds and the image with a size of 480 x 640 pixels of 1.66 seconds.
PENINGKATAN KEAMANAN TRANSMISI REAL TIME VIDEO SURVEILLANCE MENGGUNAKAN SECURE SOCKET LAYER Iswahyudi, Catur; Pratama, Nanda Adi; Triyono, Joko
JURNAL TEKNOLOGI TECHNOSCIENTIA Technoscientia Vol 12 No 1 Agustus 2019
Publisher : Lembaga Penelitian & Pengabdian Kepada Masyarakat (LPPM), IST AKPRIND Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34151/technoscientia.v12i1.1968

Abstract

Security is a very important aspect of data exchange. Usually, the data in video surveillance is transmitted only for certain parties. The data must accepted to entitled user with maintained confidentiality, and avoid from packet sniffing by others. Therefore, to secure the data in video surveillance, it needs a data encryption method to hide information.SSL (Secure Socket Layer) is reliable for securing a real-time data or video transmission. SSL can be implemented on a webserver that has public hosting. In this study, Zoneminder video surveillance system implemented on the web server, then SSL will encrypt the transmitted data between the Zoneminder server and the client.The results shows that surveillance videos protected by SSL, safe from packet sniffing actions and no degradation on QoS and video quality.
SISTEM TELEMETRI TINGKAT KONSENTRASI GAS CO2 SEBAGAI PENANGANAN DAMPAK GLOBAL WARMING BERBASIS MIKROKONROLER DENGAN INFORMASI SMS GATEWAY Hadi Prasetyo Suseno; Muhammad Andang Novianta; Catur Iswahyudi
JURNAL TEKNOLOGI TECHNOSCIENTIA Technoscientia Vol 10 No 1 Agustus 2017
Publisher : Lembaga Penelitian & Pengabdian Kepada Masyarakat (LPPM), IST AKPRIND Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34151/technoscientia.v10i1.89

Abstract

The average temperature of global warming on the earth's surface today has increased by 0.74 ± 0:18°C, the increase was due to the increase in the average temperature of the atmosphere, ocean and land earth. Emissions of the most influential on the quality of the air is carbon emissions, especially carbon dioxide (CO2). The CO2 contributes to global warming is 50%. The CO2 gases absorb and reflect radiation emitted waves of the earth, so that the heat will be stored on the surface of the earth. This study aimed to design a data logger system monitoring the level of concentration of CO2 using the oxygen sensor (OOM202), carbon dioxide sensor (MG81), as well as temperature and humidity sensors (DHT22) with microcontroller-based SMS gateway information. The study tested are simulated in the laboratory with electronic testing and testing communication systems. The test results showed good performance with the prototype, the results of monitoring CO2 emissions seen huge levels of carbon dioxide (ppm) is proportional to the output voltage (Vout) is generated. The greater the concentration levels of gas detected by the sensor, the output voltage generated will be greater, than that difference or distinction ADC output between the measured and calculated because of several errors, such as error output ADC ± 2 bits, error rounding conversion of ADC to volt. The measurement results are different, in the closed and open area refers to the measurement parameters are displayed on an alphanumeric display. Measuring system can transmit data via SMS information system with an average response time of less than 1 minute, it depends on the quality of the signal and traffic data from a provider by the user.
Co-Authors -, Cahyana -, Suraya Agradira Dwi Wahyuda Agung purnomo Ahmad Hanafi Amir Hamzah Amran Syahrul Iriawan Putra Amrullah, Yusuf Amri Andri Harsono Andri Harsono, Andri Anggreawan - Anggreawan ., Anggreawan Aris Wahyu Murdiyanto Ariyana, Renna Yanwastika Bagus Wicaksono Bambang Wahyu Santoso Bambang Wahyu Santoso, Bambang Wahyu beny firman, beny Cyrilla Indri Parwati Dedi Setiawan Edhy Sutanta (Jurusan Teknik Informatika IST AKPRIND Yogyakarta) Eko Darmanto eko tresno prabowo Ema Utami Emy Setyaningsih Erfanti Fatkhiyah Erna Kumalasari Nurnawati Erna Kumalasari Nurnawati Fadly Isnureza Sarwadyanto Fina Febrianti Gardyas Bidari Adninda Hadi Prasetyo Suseno Hariyanto, Satriawan Dini Hary Wibowo Hendra Septian Isa Hariman Iwan Risgianto Joko Triyono Joko Triyono Julianto JULIANTO Kartika Indayani Kurniati, Devi Kusumaningsih, Rr. Yuliana Rachmawati La Ode Malik Hasan Laksono Trisnantoro Luthfia Wilaksono, Nurina Ivana M Yusuf Ali Fiqri M. Andang Novianta, M. Andang Mohammad Sholeh Mufid Wahyuaji Muhammad Andang Novianta Muhammad Andang Novianta Muhammad Puguh Pamungkas Muhammad Rosyid MUHAMMAD SHOLEH Naniek Widyastuti Naniek Widyastuti Noviana Pratiwi Noviana Pratiwi, Noviana Nurcahyo, Raden Wisnu P.Aji, Galih Tegar Pamuji, Septi Ade Pratama, Nanda Adi Prita Haryani Purnawan Purnawan Purnawan Purnawan Purnawan Ragusta, Yuda Reza Pakiding Rizki Pratama Rizkyka Angellia Rizqi Aji Nugroho Rosalia Arum Kumalasanti Rosid, Ibnu Abdul Rr Yuliana Rachmawati K Rr Yuliana Rachmawati Kusumaningsih RR. Yuliana Rachmawati Rr. Yuliana Rachmawati k, Rr. Yuliana Rachmawati Rr. Yuliana Rachmawati, Rr. Yuliana Rr.Yuliana Rachamawati, Rr.Yuliana Rusyda, Annisa Rizka Alhimna Sahid Aris Budiman, Sahid Aris Samuel Kristiyana Sholeh, Muhammad Sigit Iskandar Sigit Iskandar, Sigit Sisilia Endah Lestari, Sisilia Endah Suparni Setyowati Rahayu Suwanto Raharjo Taufik Hidayat Tomas Antonio Correia Freitas, Tomas Antonio Correia Toto Rusianto Tri Anto Tri Mulyadin Triyono, Joko Uning Lestari Uning Lestari Utami, Ema Utami Utomo, Ariyadi Dwi Wahyu Widianto Witri Anik Witri Anik, Witri Yosefina Pantu Yosefina Pantu, Yosefina Yunis Aprilianti Zulfikar .L, Fauzul Rachman