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WPES
2005
ACM
15 years 11 months ago
The privacy cost of the second-chance offer
This paper examines a generalization of a two-stage game common on eBay: an ascending-price auction followed by price discrimination (the second chance offer). High bids in the a...
Sumit Joshi, Yu-An Sun, Poorvi L. Vora
BTW
2005
Springer
113views Database» more  BTW 2005»
15 years 11 months ago
A Learning Optimizer for a Federated Database Management System
: Optimizers in modern DBMSs utilize a cost model to choose an efficient query execution plan (QEP) among all possible ones for a given query. The accuracy of the cost estimates de...
Stephan Ewen, Michael Ortega-Binderberger, Volker ...
CCS
2005
ACM
15 years 11 months ago
Fast dictionary attacks on passwords using time-space tradeoff
Human-memorable passwords are a mainstay of computer security. To decrease vulnerability of passwords to bruteforce dictionary attacks, many organizations enforce complicated pass...
Arvind Narayanan, Vitaly Shmatikov
CCS
2005
ACM
15 years 11 months ago
An auctioning reputation system based on anomaly
Existing reputation systems used by online auction houses do not address the concern of a buyer shopping for commodities—finding a good bargain. These systems do not provide in...
Shai Rubin, Mihai Christodorescu, Vinod Ganapathy,...
EUROCRYPT
2005
Springer
15 years 11 months ago
Approximate Quantum Error-Correcting Codes and Secret Sharing Schemes
It is a standard result in the theory of quantum error-correcting codes that no code of length n can fix more than n/4 arbitrary errors, regardless of the dimension of the coding ...
Claude Crépeau, Daniel Gottesman, Adam Smit...
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