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» Deciding knowledge properties of security protocols
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PODC
2011
ACM
13 years 19 days ago
Securing social networks
We present a cryptographic framework to achieve access control, privacy of social relations, secrecy of resources, and anonymity of users in social networks. The main idea is to u...
Michael Backes, Matteo Maffei, Kim Pecina
CRYPTO
2003
Springer
109views Cryptology» more  CRYPTO 2003»
14 years 3 months ago
On Deniability in the Common Reference String and Random Oracle Model
We revisit the definitions of zero-knowledge in the Common Reference String (CRS) model and the Random Oracle (RO) model. We argue that even though these definitions syntacticall...
Rafael Pass
TCC
2009
Springer
158views Cryptology» more  TCC 2009»
14 years 10 months ago
On the (Im)Possibility of Arthur-Merlin Witness Hiding Protocols
The concept of witness-hiding suggested by Feige and Shamir is a natural relaxation of zero-knowledge. In this paper we identify languages and distributions for which many known co...
Iftach Haitner, Alon Rosen, Ronen Shaltiel
MDM
2010
Springer
173views Communications» more  MDM 2010»
14 years 2 months ago
ParTAC: A Partition-Tolerant Atomic Commit Protocol for MANETs
—The support of distributed atomic transactions in mobile ad-hoc networks (MANET) is a key requirement for many mobile application scenarios. Atomicity is a fundamental property ...
Brahim Ayari, Abdelmajid Khelil, Neeraj Suri
ISW
2010
Springer
13 years 7 months ago
Efficient Computationally Private Information Retrieval from Anonymity or Trapdoor Groups
A Private Information Retrieval (PIR) protocol allows a database user, or client, to obtain information from a data- base in a manner that prevents the database from knowing which...
Jonathan T. Trostle, Andy Parrish