Post-doctoral position at INRIA (near Paris - France)

We are looking for post-doctoral candidates in the SMIS project (Secured
Mediation Systems : http://www.inria.fr/recherche/equipes/smis.en.html )
at INRIA Rocquencourt (near Paris) (http://www.inria.fr/index.en.html).
We are offering two positions on :
        - Database components embedded into ultra-light computing devices
and
        - Confidentiality and privacy : data encryption vs. access rights
(see below for a more detailed description)

Post-doctoral positions at INRIA are intended for students having recently
obtained a doctoral degree.

Candidates should ideally apply before April, 15th and send to
Philippe.Pucheral-MZpvjPyXg2s@xxxxxxxxxxxxxxxx  :
        -A detailed scientific program written by the candidate
        -A curriculum vitae
        -A letter of candidature which includes employment prospects
        -following the post-doctoral period at INRIA
        -A copy of the doctoral dissertation
        -If possible, doctoral committee reports and one to three letters of
         recommendation


 Database components embedded into ultra-light computing devices
================================================
Ubiquitous computing (access data anywhere, anytime, anyhow) and ambient
intelligence introduce the need for embedding data and evaluating database
queries in a growing variety of ultra-light computing devices (PDA, cellular
phones, smartcards, sensors, chips integrated in home networks). Important
research efforts have to be undertaken: (i) to better capture the impact of
each device's hardware constraint on database techniques, (ii) to propose
new techniques allowing to build ad-hoc embedded database components
and (iii) to set up co-design rules helping to calibrate the hardware
resources
of future devices in order to match specific application's requirements.
The SMIS project is interested in storage models, indexation structures and

query execution strategies matching strong hardware constraints in terms of
RAM, energy and communication bandwidth consumption.

Key-words: mobility, embedded databases, System on Chip, co-design,
storage and indexation models, query execution, benchmarks.


Confidentiality and privacy : data encryption vs. access rights
============================================
Enforcing data confidentiality is today a tremendous challenge. Indeed, the
threats on data confidentiality and privacy increase with the permanent
connection of the data sources to the Internet, the resort to untrusted
Web-hosting companies to store and manage them and the democratization of
ubiquitous computing. While encryption is used successfully for years to
secure communications, database encryption introduces difficult theoretical
and practical issues: (i) how to execute efficiently queries over encrypted
data, how to conciliate declarative (i.e., predicate based) access rights
with encryption, how to distribute encryption keys between users sharing
part of the database, how to take advantage of secured computing devices?
Beyond database encryption, a more general issue is the definition and
management of access rights over multiple distributed and heterogeneous
resources accessible through the Internet. The way these resources are
accessed (pull, push or P2P) adds another dimension to this problem.
Currently, the SMIS project develops chip-secured models to query, update
and share encrypted databases. A post-doc researcher willing to invest on
any of the aforementioned issue is welcome.

Key-words: data confidentiality and privacy, database encryption, queries
over encrypted data, smartcards and secured computing devices, access right
management.
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