Persona: An Online Social Network with User-Defined Privacy
by Baden Randolf et al.
show details
Details
| url: | http://ccr.sigcomm.org/online/files/p135.pdf | | abstract: | Online social networks (OSNs) are immensely popular, with
some claiming over 200 million users [10]. Users share private
content, such as personal information or photographs,
using OSN applications. Users must trust the OSN service
to protect personal information even as the OSN provider
benefits from examining and sharing that information.
We present Persona, an OSN where users dictate who
may access their information. Persona hides user data with
attribute-based encryption (ABE), allowing users to apply
fine-grained policies over who may view their data. Persona
provides an effective means of creating applications in which
users, not the OSN, define policy over access to private data.
We demonstrate new cryptographic mechanisms that enhance
the general applicability of ABE. We show how Persona
provides the functionality of existing online social networks
with additional privacy benefits. We describe an implementation
of Persona that replicates Facebook applications
and show that Persona provides acceptable performance
when browsing privacy-enhanced web pages, even on
mobile devices. |
|
|
You need to log in to add tags and post comments.
