1,209 research outputs found
An Evaluation Framework
No full textThere are various solutions expounded upon to address security vulnerabilities and privacy violations of low cost RFID systems. This paper will formulate a framework for defining the problem space around low cost RFID systems to enable the engineering of solutions and for evaluating those solutions for their effectiveness in the contest of networked low cost RFID systems. © 2008 Springer-Verlag Berlin Heidelberg.Damith C. Ranasinghe and Peter H. Colehttp://trove.nla.gov.au/work/835244
Introduction from the editors
No full textThis introduction describes the structure of the book, and in particular how it is divided into sections and chapters. It gives an outline of what can be found in each chapter, and gives a description of the origin and structure of the organisation known as the Auto-ID Laboratories whose members have studied the anti-counterfeiting problem and have provided the material for this book. © 2008 Springer-Verlag Berlin Heidelberg.Damith C. Ranasinghe and Peter H. Colehttp://www.springer.com/computer/communication+networks/book/978-3-540-71640-2?cm_mmc=Google-_-Book%20Search-_-Springer-_-
A low cost solution to cloning and authentication based on a lightweight primitive
No full textThis paper proposes a solution to address the issue of authentication to prevent counterfeiting in a low cost RFID based system based on using a lightweight primitive, Physically Unclonable Functions. © 2008 Springer-Verlag Berlin Heidelberg.Damith C. Ranasinghe, Srinivas Devadas, and Peter H. Col
Addressing Insecurities and Violations of Privacy
No full textRFID systems, and indeed other forms of wireless technologies, are now a pervasive form of computing. In the context of security and privacy, the most threatening (to privacy) and vulnerable (to insecurity) are the ‘low cost RFID systems’. The problems are further aggravated by the fact that it is this form of RFID that is set to proliferate through various consumer goods supply chains throughout the world. This is occurring through the actions of multinational companies like Wal-Mart, Tesco, Metro UPS and of powerful government organizations such as the United States DOD (Department Of Defence) and FDA (Food and Drug Administration). This paper examines the vulnerabilities of current low cost RFID systems and explores the security and privacy threats posed as a result of those vulnerabilities. The paper will also formulate a framework for defining the problem space constructed around low cost RFID systems, and consider the challenges faced in engineering solutions to overcome the defencelessness of low cost RFID systems. Security issues beyond and including interrogators will not be considered as such concerns may be easily resolved using existing technology and knowledge, and because interrogators are powerful devices where complex encryption and decryption operations may be performed using either the embedded systems, DSPs, or using hardware implementation of encryption engines on a FPGA device onboard a reader.Damith C. Ranasinghe and Peter H. Colehttp://nla.gov.au/anbd.bib-an4269330
Lightweight cryptography for low cost RFID
No full textSecurity and privacy concerns as well as the need for security services to enable the development of novel applications using low cost RFID have been illustrated in previous Chapters, and in particular various proposals made to address issues regarding information security and end-user privacy have been discussed in Chapter 6. However, some of these ideas are not practicable for secure low-cost RFID on account of their demand for circuit size and operational power while others fail to meet various security and privacy objectives adequately. The solutions presented have not considered: aspects unique to low cost RFID, system performance requirements and consequences and practicability of implementation in a system wide context. This chapter aims to propose a number of practicable solutions based on lightweight cryptography that address the security objectives and privacy goals outlined in Chapter 6 and are based on the low cost RFID framework outlined therein. The proposed solutions are then evaluated for their merits using the evaluation framework developed in Chapter 8. © 2008 Springer-Verlag Berlin Heidelberg.Damith C. Ranasingh
EPC Network Architecture
No full textThe concept of a “Networked Physical World” originated from the Auto-ID Center, now called the Auto-ID Labs [1]. Such a “World” can be realised with the combination of an automatic identification technology and a ubiquitous computer network that will glue the physical world together. Low cost RFID (Radio Frequency Identification) technology can automate identification of physical objects by providing an interface to link a vast number of objects to the digital domain. Thus, RFID as the enabling technology has paved the way forward for the creation of a “Networked Physical World”. The ability to form a ubiquitous item identification network has a wide range of applications including automation of manufacturing and supply chain management. The previous chapter provided a brief overview of RFID systems. This chapter describes the backend system components formulating a distributed ubiquitous item identification network enabled by the development of automatic identification provided by RFID technology, and examines the flow of tag data, once obtained by an interrogator. The implementation of such an architecture using a web services based model, as well as the impact of the network on supply chain applications, is also investigatedDamith C. Ranasinghe, Mark Harrison and Peter H. Col
Random numbers from metastability and thermal noise
No full textPseudorandom number generators are algorithmic and thus, predictable. Ideally cryptography, simulation and modelling applications require a source of true random numbers. Presented is a true random number generator that exploits metastablity and thermal noise. The novelty is that the low-cost design can be fully integrated with standard CMOS technology.D.C. Ranasinghe, D. Lim, S. Devadas, D. Abbott and P.H. Col
Estimating extreme beach erosion frequency from a Monte Carlo simulation of wave climate
No full textCALLAGHAN, D. P., NIELSEN, P. and RANASINGHE, R., 2007. Estimating extreme beach erosion frequency from a Monte Carlo simulation of wave climate. Journal of Coastal Research, SI 50 (Proceedings of the 9th International Coastal Symposium), 88 - 92. Gold Coast, Australia, ISSN 0749.020
Maladera dambullana Ranasinghe & Eberle & Athukorala & Benjamin & Ahrens 2022, sp. nov.
No full text<i>Maladera dambullana</i> sp. nov. <p>urn:lsid:zoobank.org:act: 0605777D-D598-4210-BC74-4534D46DC2A2</p> <p>Figs 6A–D, 7I, 8H</p> Diagnosis <p> The new species is very similar to <i>M. pubescens</i> (Arrow, 1916). <i>Maladera dambullana</i> sp. nov. differs from <i>M. pubescens</i> by the shape of the aedeagus: the ventral distal lobe (i.e., the fused parameres) is not extended mesally but constant in width over its entire length.</p> Etymology <p>The name of the new species is derived from its type locality ‘Dambulla’ (adjective in nominative case singular).</p> Type material <p> <b>Holotype</b> SRI LANKA • ♂; “ X-SR0269, Sri Lanka, Matale District, Dambulla, NIFS Arboretum, 7.85766ºN, 80.67474ºE, 174m, 13-X-2019, Eberle, Bohacz & Ranasinghe, Black light ”; ZFMK.</p> <p> <b>Paratypes</b> SRI LANKA • 1 ♂; “ X-SR0254, Sri Lanka, Matale District, Dambulla, NIFS Arboretum; 7.85766ºN, 80.67474ºE; 174m; 13-X-2019; Eberle, Bohacz & Ranasinghe leg.; Black light ”; ZFMK • 1 ♂; “ X- SR0257, Sri Lanka, Matale District, Dambulla, NIFS Arboretum; 7.85766ºN, 80.67474ºE; 174m; 13- X-2019; Eberle, Bohacz & Ranasinghe leg.; Black light ”; ZFMK • 1 ♂; “ X-SR0258, Sri Lanka, Matale District, Dambulla, NIFS Arboretum; 7.85766ºN, 80.67474ºE; 174m; 13-X-2019; Eberle, Bohacz & Ranasinghe leg.; Black light ”; ZFMK • 1 ♂; “ X-SR0259, Sri Lanka, Matale District, Dambulla, NIFS Arboretum; 7.85766ºN, 80.67474ºE; 174m; 13-X-2019; Eberle, Bohacz & Ranasinghe leg.; Black light ”; ZFMK • 1 ♂; “ X-SR0262, Sri Lanka, Matale District, Dambulla, NIFS Arboretum; 7.85766ºN, 80.67474ºE; 174m; 13-X-2019; Eberle, Bohacz & Ranasinghe leg.; Black light ”; ZFMK • 1 ♂; “ X- SR0264, Sri Lanka, Matale District, Dambulla, NIFS Arboretum; 7.85766ºN, 80.67474ºE; 174m; 13- X-2019; Eberle, Bohacz & Ranasinghe leg.; Black light ”; ZFMK • 1 ♂; “ X-SR0265, Sri Lanka, Matale District, Dambulla, NIFS Arboretum; 7.85766ºN, 80.67474ºE; 174m; 13-X-2019; Eberle, Bohacz & Ranasinghe leg.; Black light ”; ZFMK • 1 ♂; “ X-SR0266, Sri Lanka, Matale District, Dambulla, NIFS Arboretum; 7.85766ºN, 80.67474ºE; 174m; 13-X-2019; Eberle, Bohacz & Ranasinghe leg.; Black light ”; ZFMK • 1 ♂; “ X-SR0267, Sri Lanka, Matale District, Dambulla, NIFS Arboretum; 7.85766ºN, 80.67474ºE; 174m; 13-X-2019; Eberle, Bohacz & Ranasinghe leg.; Black light ”; ZFMK • 1 ♂; “ X- SR0271, Sri Lanka, Matale District, Dambulla, NIFS Arboretum; 7.85766ºN, 80.67474ºE; 174m; 13- X-2019; Eberle, Bohacz & Ranasinghe leg.; Black light ”; ZFMK • 1 ♂; “ X-SR0272, Sri Lanka, Matale District, Dambulla, NIFS Arboretum; 7.85766ºN, 80.67474ºE; 174m; 13-X-2019; Eberle, Bohacz & Ranasinghe leg.; Black light ”; ZFMK • 1 ♂; “ X-SR0279, Sri Lanka, Matale District, Dambulla, NIFS Arboretum; 7.85766ºN, 80.67474ºE; 174m; 13-X-2019; Eberle, Bohacz & Ranasinghe leg.; Black light ”; ZFMK • 1 ♂; “ X-SR0281, Sri Lanka, Matale District, Dambulla, NIFS Arboretum; 7.85766ºN, 80.67474ºE; 174m; 13-X-2019; Eberle, Bohacz & Ranasinghe leg.; Black light ”; ZFMK • 1 ♂; “ X- SR0282, Sri Lanka, Matale District, Dambulla, NIFS Arboretum; 7.85766ºN, 80.67474ºE; 174m; 13- X-2019; Eberle, Bohacz & Ranasinghe leg.; Black light ”; ZFMK • 1 ♂; “ X-SR0283, Sri Lanka, Matale District, Dambulla, NIFS Arboretum; 7.85766ºN, 80.67474ºE; 174m; 13-X-2019; Eberle, Bohacz & Ranasinghe leg.; Black light ”; ZFMK • 1 ♂; “ X-SR0284, Sri Lanka, Matale District, Dambulla, NIFS Arboretum; 7.85766ºN, 80.67474ºE; 174m; 13-X-2019; Eberle, Bohacz & Ranasinghe leg.; Black light ”; ZFMK • 1 ♂; “ X-SR0285, Sri Lanka, Matale District, Dambulla, NIFS Arboretum; 7.85766ºN, 80.67474ºE; 174m; 13-X-2019; Eberle, Bohacz & Ranasinghe leg.; Black light ”; ZFMK • 1 ♂; “ X- SR0286, Sri Lanka, Matale District, Dambulla, NIFS Arboretum; 7.85766ºN, 80.67474ºE; 174m; 13- X-2019; Eberle, Bohacz & Ranasinghe leg.; Black light ”; ZFMK • 1 ♂; “ X-SR0292, Sri Lanka, Matale District, Dambulla, NIFS Arboretum; 7.85766ºN, 80.67474ºE; 174m; 13-X-2019; Eberle, Bohacz & Ranasinghe leg.; Black light ”; ZFMK • 1 ♂; “ X-SR0297, Sri Lanka, Matale District, Dambulla, NIFS Arboretum; 7.85766ºN, 80.67474ºE; 174m; 13-X-2019; Eberle, Bohacz & Ranasinghe leg.; Black light ”; ZFMK • 1 ♂; “ X-SR0300, Sri Lanka, Matale District, Dambulla, NIFS Arboretum; 7.85766ºN, 80.67474ºE; 174m; 13-X-2019; Eberle, Bohacz & Ranasinghe leg.; Black light ”; ZFMK • 1 ♂; “ X- SR0486, Sri Lanka, Matale District, Dambulla, NIFS Arboretum; 7.85766ºN, 80.67474ºE; 174m; 13- X-2019; Eberle, Bohacz & Ranasinghe leg.; Black light ”; ZFMK • 1 ♂; “ X-SR0489, Sri Lanka, Matale District, Dambulla, NIFS Arboretum; 7.85766ºN, 80.67474ºE; 174m; 13-X-2019; Eberle, Bohacz & Ranasinghe leg.; Black light ”; ZFMK • 1 ♂; “ X-SR0490, Sri Lanka, Matale District, Dambulla, NIFS Arboretum; 7.85766ºN, 80.67474ºE; 174m; 13-X-2019; Eberle, Bohacz & Ranasinghe leg.; Black light ”; ZFMK • 1 ♂; “ X-SR0491, Sri Lanka, Matale District, Dambulla, NIFS Arboretum; 7.85766ºN, 80.67474ºE; 174m; 13-X-2019; Eberle, Bohacz & Ranasinghe leg.; Black light ”; ZFMK • 1 ♂; “ X- SR0501, Sri Lanka, Matale District, Dambulla, NIFS Arboretum; 7.85766ºN, 80.67474ºE; 174m; 13- X-2019; Eberle, Bohacz & Ranasinghe leg.; Black light ”; ZFMK • 1 ♂; “ X-SR0507, Sri Lanka, Matale District, Dambulla, NIFS Arboretum; 7.85766ºN, 80.67474ºE; 174m; 13-X-2019; Eberle, Bohacz & Ranasinghe leg.; Black light ”; ZFMK • 1 ♂; “ X-SR0510, Sri Lanka, Matale District, Dambulla, NIFS Arboretum; 7.85766ºN, 80.67474ºE; 174m; 13-X-2019; Eberle, Bohacz & Ranasinghe leg.; Black light ”; ZFMK • 1 ♂; “ X-SR1049, Sri Lanka, Matale District, Dambulla, NIFS Arboretum; 7.85766ºN, 80.67474ºE; 174m; 13-X-2019; Eberle, Bohacz & Ranasinghe leg.; Black light ”; ZFMK • 1 ♂; “ X- SR0341, Sri Lanka, Matale District, Dambulla, NIFS Arboretum; 7.85783ºN, 80.67391ºE; 167m; 12-13- X-2019; Eberle, Bohacz & Ranasinghe leg.; Black light ”; ZFMK • 1 ♂; “ X-SR0363, Sri Lanka, Matale District, Dambulla, NIFS Arboretum; 7.85783ºN, 80.67391ºE; 167m; 12-13-X-2019; Eberle, Bohacz & Ranasinghe leg.; Black light ”; ZFMK • 1 ♂; “ X-SR0414, Sri Lanka, Matale District, Dambulla, NIFS Arboretum; 7.85796ºN, 80.67554ºE; 181m; 12-13-X-2019; Eberle, Bohacz & Ranasinghe leg.; Black light ”; ZFMK • 1 ♂; “ SR0301, Sri Lanka, Matale District, Dambulla, NIFS Arboretum; 7.85824ºN, 80.67506ºE; 182m; 13-X-2019; Eberle, Bohacz & Ranasinghe leg.; Black light ”; ZFMK • 1 ♂; “ X- SR0985, Sri Lanka, Matale District, Dambulla, NIFS Arboretum; 7.85897ºN, 80.67533ºE; 203m; 11-12- X-2019; Eberle, Bohacz & Ranasinghe leg.; Black light ”; ZFMK • 1 ♂; “ X-SR0209, Sri Lanka, Matale District, Dambulla, NIFS Arboretum; 7.85907ºN, 80.67587ºE; 160m; 13-X-2019; Eberle, Bohacz & Ranasinghe leg.; Black light ”; ZFMK • 1 ♂; “ X-SR0210, Sri Lanka, Matale District, Dambulla, NIFS Arboretum; 7.85907ºN, 80.67587ºE; 160m; 13-X-2019; Eberle, Bohacz & Ranasinghe leg.; Black light ”; ZFMK • 1 ♀; “ X-SR0261, Sri Lanka, Matale District, Dambulla, NIFS Arboretum; 7.85766ºN, 80.67474ºE; 174m; 13-X-2019; Eberle, Bohacz & Ranasinghe leg.; Black light ”; ZFMK • 1 ♀; “ X- SR0263, Sri Lanka, Matale District, Dambulla, NIFS Arboretum; 7.85766ºN, 80.67474ºE; 174m; 13-X- 2019; Eberle, Bohacz & Ranasinghe leg.; Black light ”; ZFMK.</p> Description <p>MEASUREMENTS. Length: 5.6 mm, length of elytra: 4.1 mm, width: 3.1 mm.</p> <p>HABITUS (Fig. 6D) AND COLOURATION. Body short oval, yellowish brown, antenna yellow, dorsal surface shiny, densely finely setose.</p> <p>HEAD. Labroclypeus subtrapezoidal, distinctly wider than long, widest at base, lateral margins weakly convex and strongly convergent to widely rounded anterior angles, lateral border and ocular canthus producing an indistinct blunt angle, margins weakly reflexed, anteriorly shallowly sinuate medially; surface slightly convex, finely and densely punctate, distance between punctures smaller than their diameter, with numerous erect setae in larger punctures; frontoclypeal suture almost invisible and strongly angled medially; smooth area in front of eye approximately twice as wide as long; ocular canthus short and narrow, minutely and superficially punctate, with a single short terminal seta. Frons with fine, dense punctures, with long erect setae in the punctures. Eyes large, ratio of diameter/interocular width: 0.85. Antenna yellow, with ten antennomeres; club with three antennomeres, as long as remaining antennomeres combined. Mentum elevated and anteriorly flattened.</p> <p>PRONOTUM. Moderately wide, widest at base, lateral margins weakly convex and evenly narrowed to the anterior third, anteriorly stronger convex, anterior angles strongly produced and sharp, anterior marginal line fine but complete medially, anterior margin weakly produced medially; surface finely and densely punctate, with dense moderately long setae being bent posteriorly on entire disc and with a few sparse longer setae being directed anteriorly; anterior and lateral borders setose, basal margin without marginal line; hypomeron ventrobasally carinate and slightly produced ventrally. Scutellum short and wide, triangular, with fine and dense punctures, with fine and dense adjacent setae.</p> <p>ELYTRA. Short oval, widest shortly behind middle, striae indistinctly impressed, finely and densely punctate, intervals flat, with fine, very dense punctures, with numerous fine setae similar to those of the pronotum and a few sparser ones being longer and erect or directed anteriorly, in particular on lateral intervals; epipleural edge fine, ending at the weakly convex external apical angle of elytra, epipleura densely setose; apical border narrowly membranous, apex covered with short microtrichomes.</p> <p>VENTRAL SURFACE. Moderately shiny, thorax and metacoxa with large and dense punctures, densely setose, metacoxa glabrous except for numerous long setae laterally; each abdominal sternite, in addition to evenly distributed fine and dense punctures bearing each a fine seta, with a distinct transverse row of coarse punctures each bearing a long and more robust seta, penultimate sternite apically with a shiny smooth chitinous border, which is a quarter as long as the sternite. Mesosternum between mesocoxae as wide as mesofemur, with a semi-circular ridge bearing robust setae. Ratio of length of metepisternum/ metacoxa: 1/1.93. Pygidium moderately convex, finely and very densely punctate, without smooth midline, punctures with short and moderately dense, adjacent setae, along the apical margin with a few long erect setae.</p> <p>LEGS. Short and wide; femur with two longitudinal rows of setae, finely and densely punctate, densely setose; metafemur shiny, anterior edge acute, lacking an adjacent serrated line, ventral surface densely punctate and setose, posterior ventral margin straight, only little widened in apical half and very indistinctly serrate apically, dorsally not serrated, glabrous. Metatibia short, widest at middle, posteriorly slightly narrowed, ratio width/length: 1/2.18, dorsally sharply carinate, with two groups of spines, basal one at middle, apical one at three quarters of metatibial length, basally beside dorsal margin with two single punctures with serrated margins, each bearing single spines and beside them a longitudinal serrated line; lateral face almost flat, with dense, fine punctures and with minute setae in the punctures; ventral margin with five strong spines equidistant from each other, medial face smooth, apex interiorly near tarsal articulation shallowly truncate. Meso- and metatarsomeres finely and densely punctate and setose dorsally, ventrally with sparse, short setae; metatarsomeres ventrally with a strongly serrated ridge, beside which is a strong longitudinal carina; first metatarsomere as long as following two tarsomeres combined and a little longer than dorsal tibial spur. Protibia short, bidentate. All claws symmetrical, feebly curved and long, with normally developed basal tooth.</p> <p>AEDEAGUS. Fig. 6A–C.</p> Variation <p>Length: 5.6–6.7 mm, length of elytra: 4.1–4.6 mm, width: 3.1–3.5 mm.</p> <p> <b>Female</b></p> <p>Length: 6.0– 6.5 mm, length of elytra: 4.7–4.9 mm, width: 3.7–3.8 mm. Eyes slightly smaller than in male; antennal club little shorter than remaining antennomeres combined.</p> Distribution <p>See Fig. 7I.</p>Published as part of <i>Ranasinghe, Sasanka, Eberle, Jonas, Athukorala, Namal, Benjamin, Suresh P. & Ahrens, Dirk, 2022, New species of Sericini from Sri Lanka (Coleoptera, Scarabaeidae). Part II, pp. 57-101 in European Journal of Taxonomy 821 (1)</i> on pages 81-85, DOI: 10.5852/ejt.2022.821.1799, <a href="http://zenodo.org/record/6595468">http://zenodo.org/record/6595468</a>
Small UHF RFID label antenna design and limitations
No full textCopyright © 2006 IEEEDamith Chinthana Ranasinghe, Mun Leng Ng, Kin Seong Leong, Peter H. Col
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