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ICITS
2009
13 years 5 months ago
Linear Threshold Multisecret Sharing Schemes
In a multisecret sharing scheme, several secret values are distributed among a set of n users, and each secret may have a different associated access structure. We consider here un...
Oriol Farràs, Ignacio Gracia, Sebasti&agrav...
ICONFERENCE
2012
12 years 3 months ago
Online social networks in a post-Soviet state: how Hungarians protect and share on Facebook
As Facebook has become global, users from different cultural and socio-political contexts have joined the site. We present a case study investigating how both current and historic...
Blase Ur, Yang Wang
CSCW
2006
ACM
14 years 1 months ago
A grounded theory of information sharing behavior in a personal learning space
This paper presents a grounded theory of information sharing behavior of the users of a personal learning space. A personal learning space is an environment consisted of weblog, e...
Maryam Najafian Razavi, Lee Iverson
STOC
2000
ACM
137views Algorithms» more  STOC 2000»
13 years 11 months ago
On the complexity of verifiable secret sharing and multiparty computation
We first study the problem of doing Verifiable Secret Sharing (VSS) information theoretically secure for a general access structure. We do it in the model where private channels b...
Ronald Cramer, Ivan Damgård, Stefan Dziembow...
DBSEC
2011
233views Database» more  DBSEC 2011»
12 years 11 months ago
Multiparty Authorization Framework for Data Sharing in Online Social Networks
Online social networks (OSNs) have experienced tremendous growth in recent years and become a de facto portal for hundreds of millions of Internet users. These OSNs offer attractiv...
Hongxin Hu, Gail-Joon Ahn