Dingledine PowerPoint PPT Presentations
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... onion proxy (OP) to fetch directories, establish circuits across the network, ... Tor has been used for web browsing, FTP, IRC, Kazaa, etc. ...
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Tor: The Second-Generation Onion Router Roger Dingledine, Nick Mathewson, Paul Syverson Introduction Second Generation of Onion Routing Focus on deployability Perfect ...
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18 UT-Southwestern. Vanderbilt. 23 Emory. A Benchmark Group of 12 Medical Schools. NIH Rank ... UT-SW * Includes K-, R-, P- and U-Series Grants Only. Source: R ...
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Anonymous communication over social networks. Shishir Nagaraja. Security Group ... Mix1. Mix1. Mix1. Mix1. Mix1. Conclusions ...
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Onion Routing: a distributed overlay network designed to anonymize TCP-based applications ... Overlay of Onion Routers routes used to route traffic ...
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All nodes deliver to the head and give sender a receipt. Head publishes batch snapshot ... A dishonest head can publish a correct batch but replace its portion ...
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Outline Background Onion routing Attacks against anonymity Tor ... users to have longrunning high-speed Internet connections Entirely new network graph needed ...
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[Stekel, 2003] D. Stekel, Microarray Bioinformatics, Cambridge University Press, 2003. ... Bioinformatics (CSB'2004), August 2004. ...
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Why do we need payment in Tor? Other payment systems. PAR payment system overview ... Sybil Attack. Recent Developments in Cryptography and Information Security ...
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Leaky-pipe circuit topology. Tor initiators can direct traffic to nodes partway down circuit ... Leaky Pipe Circuits. The leaky pipe circuit topology allows ...
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The FAFSA is the only application students at JMU need to complete to apply for ... The key is to get the FAFSA on file and JMU will guide you through the rest ...
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Cannot be emptied in 1 round. Time of ... Cannot be emptied in 1 round, time ... Can (in theory) be emptied in one round. High cost in the number of messages ...
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Protecting Privacy in Software Agents: Lessons from the PISA Project. Andrew Patrick ... privacy: definitions, types of data, legal roles, preferences and policies, ...
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One Cell is Enough to Break Tor s Anonymity Xinwen Fu University of Massachusetts Lowell Team members Zhen Ling, Southeast University Junzhou Luo, Southeast University
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Quicksilver. Jack B. Nimble. The system works relatively well. Screenshot of Quicksilver. Pool Mix. N M. N. N. M. M messages stay in the mix at each round ...
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On Anonymization Overlays. Post-Mortem Of An Abandoned Course Project. Vitaly Shmatikov ... 'Untraceable Electronic Mail, Return Addresses, and Digital ...
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Social Networks ... A Social network comprises a set of people with a similar pattern ... Social Networking is used to optimize the speed of search and ...
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Trust: H e p?st?s??? p?? de???e? ??a? ?? ?? se ??a ???? a?t?p??s?pe?e? ... REGRET: A Reputation Model for Gregarious Societies. ...
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The ability to hide not just the contents of a particular ... Screenshot of Quicksilver. Pool Mix. N M. N. N. M. M messages stay in the mix at each round ...
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more sharing lower latency. overlay or wireless ad hoc routing ... combine with zero-cost identities = Sybil attack [Douceur 2002] negative collusion ...
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Creating a Location Hidden Server. Server creates onion routes. to 'introduction points' ... Free Haven project has an excellent bibliography on anonymity ...
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Time-to-Live Attacks (Mute, Mantis) Multiple Attackers (Mute) Statistical Attacks (MIXes) ... Crowds. Time-to-live Attack: Mute. Time-to-live Attack: Mantis ...
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Deployable DDoS Resiliency Ph.D. Candidate: Soon Hin Khor Advisor: Assoc. Prof. Akihiro Nakao
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Mailing lists, twikis, blogs, online social networks: Many-to-many communication (communities) Shared spaces and collective content (group photo albums, forums) ...
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18739A: Foundations of Security and Privacy. Outline. Just Fast Keying (JFK) ... 'Sybil attack': attacker creates a large number of routers ...
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Traditional definition by Matt Blaze: ... ( Blaze et al., 1998) Drawbacks of ... Example (form Grandison & Sloman, 2000): PolicyMaker (Blaze et al., 1996) ...
On eBay: only 0.6% of ratings by buyers and 1.6% of ratings by sellers were ... ratings can only be provided after a transaction (which costs money) eBay ...
The Economics of Security and Privacy
Westin, 1967 - data shadow, privacy as informational self-determination ... This can make it hard to recover capital ... So time-to-market is critical ...
