JURNAL INFOTEL Informatika - Telekomunikasi - Elektronika Website Jurnal : http://ejournal.st3telkom.ac.id/index.php/infotel ISSN : 2085-3688; e-ISSN : 2460-0997
Kajian Aspek Security Pada Jaringan Informasi dan Komunikasi Berbasis Visible Light Communication Syifaul Fuada Pusat Penelitian Mikroelektronika, Institut Teknologi Bandung Jln. Ganesha No. 10, Kampus ITB, Kota Bandung (40116), Jawa Barat, Indonesia
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[email protected] Dikirim 15 Januari 2017, Direvisi 08 Februari 2017, Diterima 15 Februari 2017 Abstrak – Penerapan visible light communication (VLC) berlandaskan pada pedoman IEEE 802.15.17 yang mana aturan tersebut baru dirancang dalam waktu 5 tahun belakangan ini (sejak tahun 2009), didalamnya meliputi standar layer fisik (physical layer) dan layer MAC (medium access control). Sebagaimana teknologi komunikasi pada umumnya, VLC juga menyediakan akses security yang dibahas pada bagian layer MAC. Namun pada praktiknya masih belum begitu masif dilakukan oleh para peneliti. Hal ini sangat wajar karena mengingat VLC merupakan teknologi yang sedang dalam tahap pengembangan, yang menjadikan penelitian VLC umumnya berfokus pada ‘bagaimana meningkatkan speed dari keterbatasan komponen-komponen pembangun (IC, photodiode, LED, transistor) yang tersedia saat ini. Tantangan teknologi VLC selain target peningkatan kecepatan bit-rate, mobility communication, mengurangi interference noise, menyediakan layanan multi-acces juga salah satunya adalah isu security. Makalah ini merupakan studi literature (review paper) yang didapatkan dari dokumendokumen hasil peneltian baik di jurnal dan conference terkait dengan praktik-praktik security VLC yang pernah dilakukan dengan skema indoor maupun outdoor. Kata kunci – VLC, Security, Komunikasi dan Informasi, Review Abstract - Implementing VLC system is based on IEEE 802.15.17 standard where this guideline was designed within the past 5 years ago (since 2009), this guideline covers standard of physical layer (PHY) and medium access control layer (MAC). As communication technology in general, VLC provide security acces which discuss in MAC layer part. However in real practice, we found that they haven’t been massively conducted by researchers in the world. The reality is very reasonable due to this technology is under development, it can make VLC studies commonly are focus on “how to increase the speed of VLC with limitations components which are available at this time (such as ICs, photodiodes, LEDs, transistors, etc.)”. VLC technology challenges, not only 1) to increase the speed of bit-rate, 2) serve mobility communication, 3) reduce noise interference, 4) providing multi-service acces, but also how to implement security issues in VLC. This paper is a study of literature (review paper) which are obtained from the scientific documents from journals and conferences related to security practices VLC both for indoor and outdoor schemes. Keywords – VLC, Security, Information and Communication, Review I.
PENDAHULUAN
Teknologi wireless berkembang pesat dan mengalami peningkatan akses kecepatan [1]. Komunikasi berbasis cahaya tampak atau lazimnya disebut visible light communication (VLC) merupakan salah satu teknologi nirkabel yang sedang menjadi trend didunia dalam kurun waktu 5 tahun terakhir ini. Bermula dari demonstrasi sistem VLC Prof. Harald
Haas di tahun 2011 tentang Light Fidelity (Li-Fi) pada forum TEDx menujukkan bahwa terobosan teknologi ini dapat dijadikan alternatif komunikasi masa depan yang mana memiliki kelebihan dibandingkan teknologi komunikasi wireless lain seperti infra-red, fiber-optic dan radio frequency, yakni bebas regulasi, cakupan bandwidth yang lebih besar, aman untuk kesehatan dan masih banyak yang lainnya. Sifat dari visible light adalah tidak dapat menembus objek padat seperti 108
Jurnal Infotel Vol.9 No.1 Februari 2017 http://dx.doi.org/10.20895/infotel.v9i1.163
ISSN : 2085-3688; e-ISSN : 2460-0997 Kajian Aspek Security pada Jaringan Informasi dan Komunikasi Berbasis Visible Light Communication
mengintip komunikasi antara master dengan client yang lain secara illegal. Dan mengubah data asli juga menjadi potensi utama namun porsi keberhasilannya relatif kecil. Pada makalah ini juga telah dibahas beberapa contoh skema secure VLC pada outdoor maupun indoor. Pada aplikasi outdoor, sistem security dapat dimanfaatkan di kendaraan militer dengan protokol baru. Namun, sebagai akibat dapat meningkatkan delay komunikasi karena pengaruh key yang saling dikirimkan oleh kendaraan tersebut sangat memakan waktu (dalam hitungan detik). Selanjutnya pada aplikasi indoor sistem security tersebut dapat dimanfaatkan untuk membangun struktur secure chatting. Algoritma yang dicoba pada skenario security ini juga bermacam-macam, yakni berupa shamir’s secret, RSA, Morse code, grayscale level dan masih banyak lagi. Tentunya bidang pengembangan kriptografi juga menjadi area riset VLC yang bersifat terbuka.
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