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All Journal TEKNIK Scientific Journal of Informatics
Priyasta, Dwidharma
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Computer Science & IT Engineering

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Java Card Approach to Emulate The Indonesian National Electronic ID Smart Cards Priyasta, Dwidharma; Cesar, Wahyu; Susanti, Yanti; Junde, Juliati
Scientific Journal of Informatics Vol 5, No 2 (2018): November 2018
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/sji.v5i2.16347

Abstract

This paper presents a successful effort in emulating the Indonesian national electronic ID smart cards using Java Card. The aim is to provide theopportunity for other smart card products to contribute in the national electronic ID program. The life cycle status, the file system concept, commands and security procedures implemented in the Indonesian national electronic ID were reproduced and emulated ina Java Card applet. In the first stage, the emulator applet was tested using some test scenarios developed during the implementation phase. Later on, the emulator applet was tested in the real system under supervisioned by Direktorat Jenderal Kependudukan dan Pencatatan Sipil in order tomeasure its reliability as well as to determine that its behaviour is identical with the Indonesian national electronic ID. The results confirmed that this approach was fruitful.
Cross Operator Charging Station Access Simulator Priyasta, Dwidharma; Hadiyanto, Hadiyanto; Septiawan, Reza; Cesar, Wahyu
TEKNIK Vol 46, No 1 (2025) January 2025
Publisher : Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/teknik.v46i1.67465

Abstract

The use of battery-based electric vehicles (KLBB) continues to increase, so the ease of using the Public Electric Vehicle Charging Station (SPKLU) infrastructure for recharging electric vehicle batteries must be considered to increase public confidence. One of the problems in using electric vehicles is the concern about long-distance travel (range anxiety) due to limited battery capacity and the minimal number of SPKLUs. This research aims to provide a tool to simulate cross-operator charging stations using the EV roaming method. In this approach, charging station users only need to be registered with one SPKLU operator to use other charging stations. This research develops a set of simulation models called the EV Roaming Simulator and simulates several EV roaming scenarios concerning the basic functionality of four state-of-the-art EV roaming protocols. The simulator consists of three Open Charge Point Protocol (OCPP)-based models: the Charge Point Model, the Central System Model, and the National Access Point Model, representing charging stations, central systems, and roaming hubs. The simulator is capable of executing the given EV roaming scenario. It has the potential to be further developed and used in developing various newly proposed EV roaming systems.
Co-Authors Hadiyanto Hadiyanto Junde, Juliati Septiawan, Reza Wahyu Cesar, Wahyu Yanti Susanti