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International Conference on Transparent Optical Networks

Quantum Enabled Private Recognition of Composite Signals in Genome and Proteins

Armando N. Pinto, Laura Ortíz, Manuel B. Santos, Ana Catarina Gomes, Juan P. Brito, Nelson Jesus Muga, Nuno A. Silva, Paulo Mateus, Vicente Martín

Published Jul 1, 2020• 4 citations
Publisher

Abstract

We present a quantum enabled secure multiparty computation service able to perform private recognition of composite signals. This system is based on the generation and distribution of quantum oblivious keys. The engineered system is going to be tested in the Madrid Quantum Network.
DOI
10.1109/icton51198.2020.9203042

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We analyse a Secure Multiparty Computation (SMC) system assisted with quantum communication technologies. This SMC system is designed to compute phylogenetic trees of SARS-CoV-2 genomes. It adapts a distance-based method known as the Unweighted Pair Group Method with Arithmetic mean (UPGMA) algorithm into a private setting where the sequences owned by each party are not disclosed to the other members present in the protocol. Our main contribution lies on the integration of two quantum communication systems (quantum oblivious transfer and quantum key distribution) with libScapi implementation of the Yao secure computation protocol. This system significantly improves security when compared to its classical implementation since both quantum oblivious transfer and quantum key distribution modules are robust under a quantum computer attack. This system is designed to be compatible with current quantum networks.
We analyze the use of a Quantum Key Distribution (QKD) system to generate and distribute oblivious keys. Oblivious keys can be used to implement secure multiparty computation services. After defining oblivious keys, we show how they can be reduced to symmetric keys and used to implement secure links, and how they can also be used to implement secure computation services. Oblivious keys can also be reversed. In this context, we analyze the advantages of using quantum resources to generate oblivious keys. Particularly, we analyze a protocol to generate oblivious keys, considering both the efficiency and security of the process. We show that by using QKD, we can simultaneously obtain an efficient and quantum-resistant solution to generate and distribute oblivious keys. Finally, we discuss a field trial where a quantum secure multiparty computation service for calculating phylogenetic trees was implemented in the Quantum Madrid Network.