Welcome to my web page. I am a Senior
Lecturer at the Cybersecurity
Lab of the Faculty of Information
Technology, Monash University.
Currently, my main research interests are in the design and
analysis of cryptographic algorithms and cybersecurity
protocols, their applications, and the formulation and proof
of their security properties. Specific areas I have worked on
include: lattice-based cryptography, cryptographic primitives
with extra functionality (such as homomorphic encryption and
multilinear maps), user authentication protocols,
privacy-preserving protocols and secure multiparty
computation, cryptographic hash functions, public key
encryption, digital signatures, signcryption.
Recent Research Publications
R. Steinfeld and A. Sakzad and R. Zhao. Titanium: Proposal for a NIST Post-Quantum Public-key Encryption and
KEM Standard. Presented at First
NIST PQC Standardization Conference, April 2018.
Presentation Slides: pdf
Full NIST submission document: pdf . For full details,
software, and updates, please see the Titanium
M. Rosca, A. Sakzad, D. Stehle,
and R. Steinfeld, Middle-Product Learning with Errors, to
appear in CRYPTO 2017. Full version: pdf
Bai and A. Langlois and T. Lepoint and D. Stehle
and R. Steinfeld. Improved Security Proofs in Lattice-Based
Cryptography: Using the Renyi Divergence Rather Than the
Statistical Distance. In Proceedings of ASIACRYPT
(1) 2015, pp. 3-24, Springer-Verlag, 2015. (BEST PAPER
S. Ling and D.H. Phan and D.
Stehle and R. Steinfeld. Hardness of k-LWE and
Applications in Traitor Tracing. In Proceedings of CRYPTO
2014, Springer-Verlag LNCS Vol. 8616, pp. 315-334, 2014. Full
A. Langlois and D. Stehle and
R. Steinfeld. GGHLite:
More Efficient Multilinear Maps from Ideal Lattices. In
Proceedings of EUROCRYPT 2014, LNCS Vol. 8441, pp.
239-256, Springer-Verlag, 2014. Full version: pdf
R. Steinfeld. NTRU
Cryptosystem: Recent Developments and Emerging Mathematical
Problems in Finite Polynomial Rings. Chapter of Algebraic
Curves and Finite Fields: Cryptography and Other
Applications, H. Niederreiter and A. Ostafe and D.
Panario and A. Winterhof (Eds.), Radon Series on Computational
and Applied Mathematics, Volume 16, De Gruyter, 2014, ISBN
978-3-11-031788-6. Download: pdf