Homepage of Claudio Orlandi

About me:

My main area of research is Secure Multi Party Computation, both practical and theoretical aspects.

Starting from summer 2012, I will be back in Aarhus to work on my research project Cryptographic Protocols for Secure Computation, under a research grant of the Danish Council for Independent Research | Technology and Production Sciences (in Danish).
I have been working as postdoc at Bar Ilan University, in the group lead by Yehuda Lindell, since May 2011.
I got my PhD (2007-2011) at Departement of Computer Science, Aarhus Univeristy under the supervision of Ivan Damgård and Jesper Buus Nielsen.
I spent the summer of 2010 as an intern at NTT, Tokyo, working with Tatsuaki Okamoto and Masayuki Abe.
From July '09 to January '10 I spent a semester at UCLA where I've been working with Yuval Ishai, Rafail Ostrovsky, Amit Sahai.
From '05 to '07, during my master @UniFI, I've been doing research in the intersection between cryptography and signal processing with Alessandro Piva and Mauro Barni.

My Erdős number is 3: P. Erdős - C. Pomerance - I. Damgård - Me; unfortunately, my Bacon number is still undefined. Other numbers can be found here and here.

@claudiorlandi on Twitter:

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Publications:

Jesper Nielsen, Peter Nordholt, Claudio Orlandi, Sai Sheshank
A New Approach to Practical Active-Secure Two-Party Computation
To appear at CRYPTO 2012. Available at http://eprint.iacr.org/2011/091.

Kobbi Nissim, Claudio Orlandi, Rann Smorodinsky
Privacy-Aware Mechanism Design
To appear at ACM Conference on Electronic Commerce 2012. Available at http://arxiv.org/abs/1111.3350.

Rikke Bendlin, Jesper Nielsen, Peter Nordholt, Claudio Orlandi
Lower and Upper Bounds for Deniable Public-Key Encryption
ASIACRYPT 2011.
A preliminary version with title "Receiver-deniable public-key encryption is impossible" was published at http://eprint.iacr.org/2011/046.

Claudio Orlandi
Is Multiparty Computation Any Good In Practice?
ICASSP 2011, draft version available here.

Rikke Bendlin, Ivan Damgård, Claudio Orlandi, Sarah Zakarias
Semi-Homomorphic Encryption and Multiparty Computation
EUROCRYPT 2011. Available at http://eprint.iacr.org/2010/514.

Yuval Ishai, Abhishek Kumarasubramanian, Claudio Orlandi, Amit Sahai
On Invertible Sampling and Adaptive Security
ASIACRYPT 2010. draft version available here.

Ivan Damgård, Claudio Orlandi
Multiparty Computation for Dishonest Majority: from Passive to Active Security at Low Cost
CRYPTO 2010. Available at http://eprint.iacr.org/2010/318.
(An implementation of an earlier version of this work can be found in: Jakobsen, Makkes and Nielsen: Efficient Implementation of the Orlandi Protocol.)

Ivan Damgård, Jesper Nielsen, Claudio Orlandi
On the Necessary and Sufficient Assumptions for UC Computation
TCC 2010. Available at http://eprint.iacr.org/2009/247.

Jesper Nielsen, Claudio Orlandi
LEGO for Two Party Secure Computation
TCC 2009. Available at http://eprint.iacr.org/2008/427.

Ivan Damgård, Jesper Nielsen Claudio Orlandi
Essentially Optimal Universally Composable Oblivious Tranfer
ICISC 2008. Available at http://eprint.iacr.org/2008/220.

Alessandro Piva, Claudio Orlandi, Mauro Caini, Tiziano Bianchi, Mauro Barni,
Enhancing Privacy in Remote Data Classification,
SEC 2008.

Claudio Orlandi, Alessandro Piva, Mauro Barni,
Oblivious Neural Network Computing from Homomorphic Encryption,
EURASIP JIS, Special Issue on Signal Processing in the Encrypted Domain, 2007.

Mauro Barni, Claudio Orlandi, Alessandro Piva,
A Privacy Preserving Protocol for Neural-Network-Based Computation,
MM&Sec 2006.

Alessandro Piva, Vito Cappellini, Daniele Corazzi, Alessia De Rosa, Claudio Orlandi, and Mauro Barni,
Zero-knowledge ST-DM watermarking
Security, Steganography, and Watermarking of Multimedia Contents VIII, SPIE Electronic Imaging 2006.

(Non-conference) Talks:

A New Approach to Practical Active-Secure Two-Party Computation
06/12/2011, Dagstuhl Seminar, Secure Computing in the Cloud, 21/11/2011, DoE Cryptodoc, Darmstadt
08/11/2011, NTT Tokyo
12/06/2011, GTACS Seminar, Bar-Ilan University

Lower and Upper Bounds for Deniable Public-Key Encryption
01/12/2011, GTACS Seminar, Bar-Ilan University
09/11/2011, NTT Tokyo

Secure Computation: Come Elaborare Informazioni Riservate
28/03/2011, Università di Firenze

On Invertible Sampling and Adaptive Security
04/10/2010, Aarhus University

How to (Efficiently) Play Any Mental Game
16/06/2010, NTT, Tokyo

Multiparty Computation for Dishonest Majority: from Passive to Active Security at Low Cost
10/05/2010, Bar-Ilan University, Israel,
03/02/2010, Microsoft Research, Redmond, Watch the video
17/04/2009, MPC Workshop, Aarhus University,

On the Necessary and Sufficient Assumptions for UC Computation
24/11/2009, UCLA,
29/09/2009, NYU,
25/09/2009, Microsoft/MIT CIS seminar, Boston
21/09/2009, Université de Montréal,
13/08/2009, University of California, Irvine,
18/06/2009, ACTS Series, Aarhus University,

LEGO for Two Party Secure Computation
24/09/2009, Brown University,
ACTS Series, 24/11/2008, Aarhus University,

UC Commitments with Minimal Assumptions (in the CRS model)
ACTS Series, 26/03/2009, Aarhus University,

Essentially Optimal Universally Composable Oblivious Transfer
Workshop on Practical Applications of New Research in Cryptography, 18/04/2008, Sabanci University, Turkey

Cryptography and Sugarbeets
19/03/2008, University of Florence, Italy

Introduction to Secure Multiparty Computation Techniques
Re-Trust Plenary Meeting Workshop, 25-26 September 2007, Trento - Italy

Signal Processing in the Encrypted Domain
ECRYPT Autumn school: Zero Knowledge: Foundations and Applications,
November 2, 2006, Bertinoro, Italy

Professional Activities:

Event Organization:

Bar-Ilan Winter School on Lattice-Based Cryptogrpahy, Feb 19-22, 2012.

Program Committee Member

External Reviewer for: CRYPTO 2012, 2010, 2009; ICIP 2012; EUROCRYPT 2012; TCC 2012, 2011, 2009; ACM CCS 2011; ASIACRYPT 2011, 2010, 2009; IEEE Transactions on Information Forensics & Security; ACM TISSEC; International Journal of Security and Networks; PKC 2011, 2010, 2009; SCN 2010; AFRICACRYPT 2010; Journal of Cryptology; ICALP 2009; Oxford Computer Journal; CT-RSA 2009; LNCS Transaction on DHMS; ICISC 2008; Data Mining and Knowledge Discovery; IEEE IAS 2008; EUSIPCO 2008; EURASIP Journal on Information Security; IET Information Security; IEE Proc. Information Security; IEEE TSMCB; ...

Maybe we met (or we are going to meet) at: Theory and Practice of Multiparty Computation; TCC 2012; Bar-Ilan Winter School on Lattice-Based Cryptography; Daghstul seminar: Secure Computing in the Cloud; European Postdoctoral Day of Excellence in Cryptography; ICASSP 2011; EUROCRYPT 2011; ASIACRYPT 2010; CRYPTO 2010; Provable Security against Physical Attacks Workshop (15-19/02/2010, Leiden); TCC 2010; CRYPTO 2009; PKC 2009; TCC 2009; ICISC 2008; CACE WP4 Meeting (Eindhoven, August 28 2008); ECRYPT PROVILAB general meeting (June 23-25, 2008, Berlin); Summer School on Rational Cryptography (June 1-6, 2008, Bertinoro); Workshop on Practical Applications of New Research in Cryptography, 18/04/2008, Sabanci University, Turkey; EUROCRYPT 2008; Re-Trust Plenary Meeting Workshop, 25-26 September 2007, Trento - Italy; EUROCRYPT 2007; ECRYPT Autumn school: Zero Knowledge: Foundations and Applications (October 28 - November 3, 2006, Bertinoro); SPIE Electronic Imaging 2006;BICI-INDAM International PhD school on Mathematical Aspects of Modern Cryptography (September 4-9, 2005, Bertinoro); ...

Theses:

Secure Computation in Untrusted Environments
PhD Dissertation. Available on request.

LEGO and Other Cryptographic Constructions
PhD Progress Report. Available on request.

Oblivious Transfer in the Universally Composable Security Model
MEng Thesis. Available on request.

Studio di schemi di commitment e protocolli a conoscenza zero su curve ellittiche
BEng Thesis. Available on request.