Publications in Journals

P. Martins, and L. Sousa, "The Role of Non-Positional Arithmetic on Efficient Emerging Cryptographic Algorithms", in IEEE Access, vol. 8, 2020, pp. 59533-59549, doi: 10.1109/ACCESS.2020.2983020

L. Sousa, R. Paludo, P. Martins, and H. Pettenghi, "Towards the Integration of Reverse Converters into the RNS Channels", in IEEE Transactions on Computers, vol. 69(3), March 2020, pp. 342 - 348, doi: 10.1109/TC.2019.2948335

J. Bajard, P. Martins, L. Sousa, and V. Zucca, "Improving the Efficiency of SVM Classification with FHE", in IEEE Transactions on Information Forensics and Security (TIFS), vol. 15, October 2019, pp. 1709 - 1722, doi: 10.1109/TIFS.2019.2946097

N. E. Kassem, L. Chen, R. E. Bansarkhani, A. E. Kaafarani, J. Camenisch, P. Hough, P. Martins, and L. Sousa, “More efficient, provably-secure direct anonymous attestation from lattices,” in Future Generation Computer Systems,vol. 99, 2019, pp. 425 – 458, doi: 10.1016/j.future.2019.04.036

P. Martins and L. Sousa, "A methodical FHE-based cloud computing model", in Future Generation Computer Systems, vol. 95, 2019, pp. 639-648, doi: 10.1016/j.future.2019.01.046

P. Martins, L. Sousa, and A. Mariano, "A survey on fully homomorphic encryption: An engineering perspective", in ACM Computing Surveys (CSUR), vol. 50(6), pp. 1--33, doi: 10.1145/3124441

A. S. Molahosseini, A. Zarandi, P. Martins and L. Sousa, "A Multifunctional Unit for Designing Efficient RNS-based Datapaths," in IEEE Access, no. 99, pp. 1-1. doi: 10.1109/ACCESS.2017.2766841

P. Martins, J. Eynard, J. C. Bajard and L. Sousa,"Arithmetical Improvement of the Round-Off for Cryptosystems in High-Dimensional Lattices", in IEEE Transactions on Computers, no. 99, 2017. doi: 10.1109/TC.2017.2690420

L. Sousa, S. Antão and P. Martins, "Combining Residue Arithmetic to Design Efficient Cryptographic Circuits and Systems", in IEEE Circuits and Systems Magazine, vol. 16, no. 4, pp. 6-32, Fourthquarte r2016. doi: 10.1109/MCAS.2016.2614714

L. Sousa, P. Martins, "Sign Detection and Number Comparison on RNS 3-Moduli Sets {2^n-1, 2^(n+x), 2^n+1}", in Circuits Syst Signal Process, vol. 36, n. 1224, doi:10.1007/s00034-016-0354-z

S. Mirhosseini, A. Molahosseini, M. Hosseinzadeh, L. Sousa and P. Martins,"A Reduced-Bias Approach with a Lightweight Hard-Multiple Generator to Design Radix-8 Modulo 2n+1 Multiplier", in IEEE Transactions on Circuits and Systems II: Express Briefs , n. 99, doi: 10.1109/TCSII.2016.2601285

L. Sousa and P. Martins,"Efficient sign identification engines for integers represented in the RNS extended 3-moduli set {2^n-1, 2^(n+k), 2^n+1}", inElectronics Letters, IET, vol. 50, n. 16, pp. 1138 1139, July 2014

Publications in Conferences

L. Fiolhais, P. Martins, and L. Sousa, "Software Emulation of Quantum Resistant Trusted Platform Modules", in 17th International Conference on Security and Cryptography (SECRYPT), July 2020

J. Bajard, J. Eynard, P. Martins, L. Sousa, and V. Zucca, "An asymptotically faster version of FV supported on HPR", in IEEE 27th Symposium on Computer Arithmetic (ARITH), June 2020

N. Kassem, L. Fiolhais, P. Martins, L. Chen, and L. Sousa, "A Lattice-Based Enhanced Privacy ID", in International Conference on Information Security Theory and Practice (IFIP), December 2019

P. Martins, J. Marrez, J.-C. Bajard, and L. Sousa, “Hypores: An hybrid representation system for ECC,” in IEEE 26th Symposium on Computer Arithmetic (ARITH), June 2019

J.-C. Bajard, J. Eynard, A. Hasan, P. Martins, L. Sousa and V. Zucca,"Efficient reductions in cyclotomic rings - Application to Ring-LWE based FHE schemes", in Selected Areas of Cryptography 2017

P. Martins and L. Sousa, "A Stochastic Number Representation for Fully Homomorphic Cryptography",in 2017 IEEE International Workshop on Signal Processing Systems (SiPS), Lorient, France, Oct 2017

M. Gentilal, P. Martins and L. Sousa,"TrustZone-backed Bitcoin Wallet",in 4th Workshop on Cryptography and Security in Computing Systems, pp. 25-28, Stockholm, Sweden, Jan 2017

P. Martins and L. Sousa,"Enhancing Data Parallelism of Fully Homomorphic Encryption",in Information Security and Cryptology – ICISC 2016, Lecture Notes in Computer Science, vol 10157,Springer

P. Martins and L. Sousa, "HPC on the Intel Xeon Phi: Homomorphic Word Searching",in 12th International Meeting on High Performance Computing for Computational Science, VECPAR 2016, Porto, Portugal, Jun 2016

P. Martins, P. Chawan and L. Sousa,"Featuring Immediate Revocation in Mikey-sakke (FIRM)",in IEEE International Symposium on Multimedia, pp. 501-506, Miami, USA, Dec 2015

P. Martins, L. Sousa, J. Eynard and J.-C. Bajard,"Programmable RNS Lattice-Based Parallel Cryptographic Decryption",in 26th IEEE International Conference on Application-specific Systems, Architectures and Processors (ASAP), Toronto, Canada, Jul 2015

P. Martins and L. Sousa, "Stretching the limits of Programmable Embedded Devices for Public-key Cryptography",in Cryptography and Security in Computing Systems (CS2), 2015 Second Workshop on, Jan 2015

P. Martins and L. Sousa,"On the evaluation of multi-core systems with SIMD engines for public-key cryptography",in Fifth Workshop on Applications for Multi-Core Architectures (WAMCA), Oct 2014


P. Chawan and P. Martins, "Methods and apparatus for secure communication," 2015. Available:

Chawan and P. Martins, “Electronic payment system using identity-based public key cryptography,” 2015. Available: