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EUROCRYPT
2007
Springer
16 years 23 days ago
Divisible E-Cash Systems Can Be Truly Anonymous
This paper presents an off-line divisible e-cash scheme where a user can withdraw a divisible coin of monetary value 2L that he can parceled and spend anonymously and unlinkably. ...
Sébastien Canard, Aline Gouget
EDBTW
2004
Springer
16 years 8 hour ago
Query Answering in Peer-to-Peer Data Exchange Systems
The problem of answering queries posed to a peer who is a member of a peer-to-peerdataexchangesystemisstudied.Theanswershavetobeconsistentwrt to both the local semantic constraints...
Leopoldo E. Bertossi, Loreto Bravo
WWW
2009
ACM
16 years 7 months ago
Seller's credibility in electronic markets: a complex network based approach
In the last decade, there has been an explosion of online commercial activity enabled by the World Wide Web. An electronic marketplace (e-market) provides an online method to perf...
Adriano M. Pereira, Arlei Silva, Wagner Meira Jr.,...
CCS
2003
ACM
15 years 12 months ago
Using graphic turing tests to counter automated DDoS attacks against web servers
We present WebSOS, a novel overlay-based architecture that provides guaranteed access to a web server that is targeted by a denial of service (DoS) attack. Our approach exploits t...
William G. Morein, Angelos Stavrou, Debra L. Cook,...
174
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SIGIR
2008
ACM
15 years 6 months ago
Efficient top-k querying over social-tagging networks
Online communities have become popular for publishing and searching content, as well as for finding and connecting to other users. User-generated content includes, for example, pe...
Ralf Schenkel, Tom Crecelius, Mouna Kacimi, Sebast...