Dept. of Electrical Engineering, Study Program of Telecommunication Engineering,
Electronics Engineering Polytechnic Institute of Surabaya (EEPIS) - ITS,
Kampus ITS Sukolilo, Surabaya 60111, Indonesia, Tel:+6231 594 7280; Fax:+6231 594 6114
E-mail: amang@eepis-its.edu
Amang Sudarsono
Applied for: An Electronic Identity Card (eID).
Anonymous credential system allows the user to convince a verifier of the possession of a certificate issued by an issuer anonymously. A previously proposed system achieves the constant complexity for the number of attributes. However, due to the use of RSA-based cryptography, it still suffers from a high cost computation. In this work, we propose an anonymous credential system with the constant complexity using a pairing-based accumulator and show the practicality of the system in an on-line electronic identity card (eID) application.
An Anonymous On-Demand Routing Protocol Using Pairing-Based Group Signatures
Applied for: An Anonymous Routing Protocol for Mobile Ad-Hoc Networks (MANETs).
Naturally, the communications in the mobile ad-hoc networks (MANETs) are more easily observed for the goal of the network traffic analysis. Hence, to enable anonymous communications from thwarting of such analysis attacks would be strongly desirable. In this work, we introduce an anonymous on-demand routing protocol using pairing-based group signatures. In this protocol, the anonymous communications are achieved by allowing all nodes as valid members of a privilege group to authenticate each other without revealing their own identities throughout an anonymous neighborhood authentication protocol.
A Group Signature Scheme with Efficient Verifier-Local Revocation Check
Applied for: An Anonymous Authentication for On-line Transaction in Mobile Applications.
Recently, verifier-local revocation (VLR) group signature scheme is one of schemes suitable for mobile signers. Unfortunately, the verifier needs to compute R separated pairings for revocation check, where R denotes the number of revoked members. In this work, we propose a VLR group signature scheme with efficient verifier-local revocation check. The efficiency improvement is derived from the observation that the product of pairings can be computed faster than the separated pairings.
Anonymous IEEE802.1X Authentication System Using Group Signatures
Applied for: An Anonymous Authentication for Wireless-ISPs.
Recently, ubiquitous Internet-access services have been provided by Internet service providers (ISPs) by deploying wireless local area networks (LANs) in public spaces including stations, hotels, and coffee shops. The IEEE802.1X protocol is usually used for user authentications to allow only authorized users to access services. Then, although user personal information of access locations, services, and operations can be easily collected by ISPs and thus, their strict management has been demanded, it becomes very difficult when multiple ISPs provide roaming services by their corporations. In this work, we present an anonymous IEEE802.1X authentication system using a group signature scheme to allow user authentication without revealing their identities. Without user identities, ISPs cannot collect personal information. As an efficient revocable group signature scheme, we adopt the verifier-local revocation (VLR) type with some modifications for use of the fast pairing computation. We show the implementation of our proposal and evaluation results where the practicality of our system is confirmed for up to 1,000 revoked users.
Journals:
Amang Sudarsono, Toru Nakanishi, Yasuyuki Nogami, and Nobuo Funabiki, “Anonymous IEEE802.1X Authentication System Using Group Signatures”, Journal of Information Processing, Vol. 18, pp. 63-76, March, 2010. [abstract]
Amang Sudarsono, Toru Nakanishi, and Nobuo Funabiki, “A Pairing-Based Anonymous Credential System with Efficient Attribute Proofs”, Journal of Information Processing, March, 2012 (Accepted, Recommended paper).
Papers:
2011Amang Sudarsono, Toru Nakanishi, and Nobuo Funabiki, “An Implementation of a Pairing-Based Anonymous Credential System with Constant Complexity”, Proceeding of The International Multi Conference of Engineers and Computer Scientists 2011 (IMECS2011), pp. 630-635, March 16-18, Hong Kong, 2011. [pdf file]
2010Amang Sudarsono, Toru Nakanishi, and Nobuo Funabiki, “Efficient Proofs of Attributes in Anonymous Credential Systems Using a Pairing-Based Accumulator”, Proceeding of Computer Security Symposium 2010 (CSS2010), pp. 801-806, 2010.
Masamitsu Sato, Amang Sudarsono, Toru Nakanishi, and Nobuo Funabiki, “An Implementation of An Anonymous IEEE802.1X Authentication Protocol with Collaborations among Organizations”, Proceeding of Computer Security Symposium 2010 (CSS2010), pp. 285-290, 2010.
Amang Sudarsono, Toru Nakanishi, and Nobuo Funabiki, “An Implementation of a Pairing-Based Anonymous Credential System with Constant Complexity”, Proceeding of IEICE Tech. Rep., vol. 110, no. 339, NS2010-135, pp. 179-184, 2010. [abstract]
2009Amang Sudarsono, Toru Nakanishi, Yumi Sakemi, Yasuyuki Nogami, and Nobuo Funabiki, “An Implementation of a Group Signature Scheme with Efficient Verifier-Local Revocation Check”, IEICE Tech. Rep., vol. 109, no. 42, ISEC2009-6, pp. 37-42, May 22, 2009. [abstract]
Toru Nakanishi, Amang Sudarsono, Yumi Sakemi, Yasuyuki Nogami, and Nobuo Funabiki, “A Group Signature Scheme with Efficient Verifier-Local Revocation Check”, Proceeding of The 2009 Symposium on Cryptography and Information Security (SCIS 2009), Otsu, Japan, 2B4-2, Jan 20-23, 2009. [abstract&intro]
2008Amang Sudarsono, Toru Nakanishi, Yasuyuki Nogami, and Nobuo Funabiki, “An Implementation of Anonymous IEEE802.1X Authentication System for Wireless Networks”, Proceeding of The 10th Industrial Electronic Seminar 2008, Network and Communication System Session, Electronics Engineering Polytechnic Institute of Surabaya (EEPIS), Surabaya, Indonesia, pp. 23-30, October 30, 2008.
Amang Sudarsono, Toru Nakanishi, Kouhei Miki and Nobuo Funabiki, “An Implementation of Anonymous IEEE802.1X Authentication with User Revocation”, The 3rd Joint Workshop on Information Security (JWIS 2008), July 10-11, Hanyang University, Seoul, Korea. pp. 112-125, 2008.
Ph.D Thesis:A Study of Pairing-Based Anonymous Authentication Systems and Their Applications, Graduate School of Natural Science and Technology, Okayama University, Japan, March, 2011.
Others:
Hary Oktavianto, Amang Sudarsono, Bima Sena Bayu Dewantara, Reni Soelistijorini, Miftahul Huda, Titon Dutono, Takashi Ikeda, “Sebuah Metodologi Pengajaran Pada Eksperimen Pemrosesan Sinyal Digital Menggunakan Modul TMS320VC5402 Dengan Menginvestigasi Orde Filter Maksimum”, EEPIS Journal, Vol: 12, No: 1, ISSN: 0852-2863, pp. 1-7, August, 2007.
Mochamad Susantok, Amang Sudarsono, Iwan Syarif, “Studi Analisis Pengukuran Performansi dan Kualitas Layanan (QoS) pada Jaringan VoIP Berbasis Session Initiation Protocol (SIP)”, Applied Engineering Seminar (AES), Politeknik Riau, pp. 1-7, Nov. 2007.
Nonot Harsono, Stritrusta Sukaridhoto, Ahmad Subhan, Amang Sudarsono, “Teknik Pemetaan Wilayah Secara Cepat Dan Akurat Menggunakan GPS Yang Dikoordinasikan Melalui Jaringan 3G Atau Yang Setara”, Prosiding Konferensi Nasional Teknologi Informasi & Komunikasi untuk Indonesia, 3-4 Mei 2006, Aula Barat & Timur Institut Teknologi Bandung, pp. 467-471, 2006.
Nonot Harsono, Stritrusta Sukaridhoto, Ahmad Subhan, Amang Sudarsono, “Rancang Bangun Portable-Data-Entry Untuk Pendataan Sidik Jari Penduduk Menggunakan Embedded System Berbasis Open-Source Dalam Rangka Implementasi E-GOV Indonesia”, Prosiding Konferensi Nasional Teknologi Informasi & Komunikasi untuk Indonesia, 3-4 Mei 2006, Aula Barat & Timur Institut Teknologi Bandung, pp. 15-18, 2006.
Nonot Harsono, Stritrusta Sukaridhoto, Ahmad Subhan, Amang Sudarsono, “Model Distributed-Data Processing Berbasis Open-Source Untuk Pengolahan Data Kependudukan Dalam Rangka Implementasi E-GOV Indonesia”, Prosiding Konferensi Nasional Teknologi Informasi & Komunikasi untuk Indonesia, 3-4 Mei 2006, Aula Barat & Timur Institut Teknologi Bandung, pp. 1-5, 2006.
Amang Sudarsono, Mochamad Hariadi, and Takafumi Aoki, “LVQ-GVF Snakes Model for Object-Based Segmentation”, Proceeding Industrial Electronic Seminar (IES), ISBN: 979-8689-08-9, PENS-ITS Surabaya, pp. 86-91, Nov. 24, 2005.
Nanang Syahroni, Amang Sudarsono, Sritrusta Sukaridhoto, “Sistem Transmisi Informasi SMS Pada Context-Aware Devices”, Proceeding Industrial Electronic Seminar (IES), ISBN: 979-8689-06-2, PENS-ITS Surabaya, pp. 255-260, Dec. 16, 2003.
Surabaya City
My hometown
1618