LYCOS RETRIEVER 
Routing
built 656 days ago
An initial design for Onion Routing was published at the first Information Hiding Workshop and deployed in mid 1996. In 1996, work had already begun on a second generation design and was referred to as such. (Some ... called it `Onion Routing: The Next Generation' in homage to a certain television series of that era.) The first publication reflecting any of that next generation design was in a paper at ACSAC in Dec. 1996, where running the proxy at a client not otherwise running a node is mentioned in passing. Much of it is specified and discussed in the Oakland 97 design paper, which was further refined and expanded in the JSAC 98 paper. There was also a detailed specification. In 1998, there were multiple independently deployed networks of around a dozen nodes each running on multiple platforms (Solaris, HP/UX, Linux, Windows NT, BSD), and embodying most of the "next generation" design, but none was ever publicly accessible.
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Routing is the blue-collar work of IC design. There are no conceptual difficulties and very little use of higher mathematics. Almost everything is based on a few basic techniques which have been known for a long time — the papers describing these were published before most readers of this work were born. The success of a router is determined by hard work, heuristics, and implementation — reducing memory usage, increasing speed, and dealing with a multitude of obscure but necessary design rules. Perhaps as a result, almost all state-of-the-art routers are built in industry, and relatively little is published about them. In contrast, the placement problem can be attacked using a wide variety of techniques, some quite sophisticated, and many academic groups develop their own placers.
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The Onion Routing program is made up of projects researching, designing, building, and analyzing anonymous communications systems. The focus is on practical systems for low-latency Internet-based connections that resist traffic analysis, eavesdropping, and other attacks both by outsiders (e.g. Internet routers) and insiders (Onion Routing servers themselves). Onion Routing prevents the transport medium from knowing who is communicating with whom -- the network knows only that communication is taking place. In addition, the content of the communication is hidden from eavesdroppers up to the point where the traffic leaves the OR network.
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Routing is available via a graphical interface, voice-guided navigation, and turn-by-turn directions. To help reduce routing errors due to incorrect address input by end users, ServiceNavigation employs an address purification process that utilizes sophisticated algorithms to identify and correct the erroneous addresses information. Additionally, the application can be implemented on a variety of mobile devices including PDAs and cell phones in order to optimize service scheduling for a wide range of end users.
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Some routing algorithms work only within domains; others work within and between domains. The nature of these two algorithm types is different. It stands to reason, therefore, that an optimal intradomain-routing algorithm would not necessarily be an optimal interdomain-routing algorithm.
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NYC Glass has an extensive laser routing system to take photographs and artwork and to convert it to glass or acrylic at resolutions up to 1200 dpi. Coupled together with patented thermally managed LED lighting systems, these high brightness point of purchase displays are very attractive for retail applications.
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