43 search results - page 4 / 9 » On Basing Private Information Retrieval on NP-Hardness |
NDSS
1999
IEEE
14 years 2 months ago
1999
IEEE
We present protocols that allow a user Alice, knowing only her name and password, and not carrying a smart card, to "log in to the network" from a "generic" wo...
MDM
2007
Springer
14 years 4 months ago
2007
Springer
—In many existing location-based services, a service provider becomes aware of the location of its customers and can, maybe inadvertently, leak this information to unauthorized e...
SIGMOD
2008
ACM
14 years 10 months ago
2008
ACM
Mobile devices equipped with positioning capabilities (e.g., GPS) can ask location-dependent queries to Location Based Services (LBS). To protect privacy, the user location must n...
WISE
2002
Springer
14 years 3 months ago
2002
Springer
In recent years, several information retrieval methods using information about the Web-links are developed, such as HITS and Trawling. In order to analyze the Web-links dividing i...
SIGMOD
2012
ACM
12 years 25 days ago
2012
ACM
The rise of smartphones equipped with various sensors has enabled personalization of various applications based on user contexts extracted from sensor readings. At the same time i...