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231	Real-time monitoring of distributed real-time and embedded systems using Web Puranik, Darshan Gajanan 03 January 2014 (has links) Indiana University-Purdue University Indianapolis (IUPUI) / Asynchronous JavaScript and XML (AJAX) is the primary method for enabling asynchronous communication over the Web. Although AJAX is providing warranted real-time capabilities to the Web, it requires unconventional programming methods at the expense of extensive resource usage. WebSockets, which is an emerging protocol, has the potential to address many challenges with implementing asynchronous communication over the Web. There, however, has been no in-depth study that quantitatively compares AJAX and WebSockets. This thesis therefore provides two contributions to Web development. First, it provides an experience report for adding real-time monitoring support over the Web to the Open-source Architecture of Software Instrumentation of Systems(OASIS), which is open-source real-time instrumentation middleware for distributed real-time and embedded (DRE) systems. Secondly, it quantitatively compares using AJAX and WebSockets to stream collected instrumentation data over the Web in real-time. Results from quantitative comparison between WebSockets and AJAX show that a WebSockets server consumes 50% less network bandwidth than an AJAX server; a WebSockets client consumes memory at constant rate, not at an increasing rate; and WebSockets can send up to 215.44% more data samples when consuming the same amount network bandwidth as AJAX. Real-time instrumentation WebSockets AJAX Monitoring Comparison Open source intelligence OASIS (Computer file) -- Research Web servers -- Research Operating systems (Computers) Embedded computer systems Middleware -- Research -- Analysis Ajax (Web site development technology) JavaScript (Computer program language)
232	Smart card fault attacks on public key and elliptic curve cryptography Ling, Jie January 2014 (has links) Indiana University-Purdue University Indianapolis (IUPUI) / Blömmer, Otto, and Seifert presented a fault attack on elliptic curve scalar multiplication called the Sign Change Attack, which causes a fault that changes the sign of the accumulation point. As the use of a sign bit for an extended integer is highly unlikely, this appears to be a highly selective manipulation of the key stream. In this thesis we describe two plausible fault attacks on a smart card implementation of elliptic curve cryptography. King and Wang designed a new attack called counter fault attack by attacking the scalar multiple of discrete-log cryptosystem. They then successfully generalize this approach to a family of attacks. By implementing King and Wang's scheme on RSA, we successfully attacked RSA keys for a variety of sizes. Further, we generalized the attack model to an attack on any implementation that uses NAF and wNAF key. Smart Card RSA ECC Fault Attack Smart Card Security Public Key NAF wNAF Counter Fault Attack Bit Flip Attack Doubling Attack Attack Simulation Data encryption (Computer science) Curves, Elliptic -- Data processing Cryptography -- Mathematics Public key cryptography -- Research Data protection -- Research Computer engineering -- Research Coding theory Computer security Data structures (Computer science) Embedded computer systems Smart card industry Computer networks -- Security measures Computers -- Access control

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Real-time monitoring of distributed real-time and embedded systems using Web

Smart card fault attacks on public key and elliptic curve cryptography