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PRivacy preserving pOst-quantuM systEms from advanced crypTograpHic mEchanisms Using latticeS

PRivacy preserving pOst-quantuM systEms from advanced crypTograpHic mEchanisms Using latticeS

Objective

Privacy-preserving cryptographic protocols allow users to take common daily life actions online (e.g, purchases, reservations or voting) without leaking sensitive personal information. They typically combine various tools such as digital signatures, homomorphic encryption or zero-knowledge proofs. While practical solutions exist under RSA or discrete logarithm assumptions, they are all completely vulnerable to quantum attacks, so that working quantum computers would immediately make them obsolete.

To address this threat, the PROMETHEUS project will enable users' privacy in the post-quantum world by providing a complete toolbox of innovative, efficient and quantum-secure cryptographic techniques adapted to modern services. It will provide new building blocks in relation with international competitions and standardisation processes, as well as advanced properties dedicated to the design of sophisticated protocols.

To this end, PROMETHEUS will focus on lattice-based cryptography and first conduct an in-depth study of the hardness of lattice problems in the quantum world, which will drive the development of better basic tools for lattice-based cryptography. Then, it will give a new set of practical primitives (signatures, public-key encryption, pseudorandom functions, etc) and suitable methods to combine them with efficient zero-knowledge proofs. These new tools will lead to the design of practical advanced protocols, like anonymous credentials, digital cash or electronic voting, that maintain users' privacy against quantum adversaries. The security of these protocols will be considered in its entirety, from theoretical definitions allowing quantum accesses to certain functionalities to practical implementations accounting for side-channel leakages.

As a concrete outcome, PROMETHEUS will highlight the feasibility of post-quantum privacy via demonstrators for several real-life use cases, including electronic payments, e-voting and cyberthreat intelligence.
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Coordinator

ECOLE NORMALE SUPERIEURE DE LYON

Address

Parvis Rene Descartes 15
69342 Lyon

France

Activity type

Higher or Secondary Education Establishments

EU Contribution

€ 594 943,69

Participants (12)

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ORANGE SA

France

EU Contribution

€ 651 500

STICHTING CENTRUM VOOR WISKUNDE EN INFORMATICA

Netherlands

STICHTING NEDERLANDSE WETENSCHAPPELIJK ONDERZOEK INSTITUTEN

Netherlands

EU Contribution

€ 465 010,50

ROYAL HOLLOWAY AND BEDFORD NEW COLLEGE

United Kingdom

EU Contribution

€ 465 120

RUHR-UNIVERSITAET BOCHUM

Germany

EU Contribution

€ 466 646,25

SCYTL SECURE ELECTRONIC VOTING SA

Spain

EU Contribution

€ 427 125

THALES SIX GTS FRANCE SAS

France

EU Contribution

€ 412 756,25

NEDERLANDSE ORGANISATIE VOOR TOEGEPAST NATUURWETENSCHAPPELIJK ONDERZOEK TNO

Netherlands

EU Contribution

€ 425 150

UNIVERSITAT POLITECNICA DE CATALUNYA

Spain

EU Contribution

€ 294 350

UNIVERSITE DE RENNES I

France

EU Contribution

€ 518 784,60

WEIZMANN INSTITUTE OF SCIENCE LTD

Israel

EU Contribution

€ 375 582,50

INTERDISCIPLINARY CENTER (IDC) HERZLIYA

Israel

EU Contribution

€ 399 999,96

Project information

Grant agreement ID: 780701

Status

Ongoing project

  • Start date

    1 January 2018

  • End date

    31 December 2021

Funded under:

H2020-EU.3.7.4.

H2020-EU.2.1.1.

  • Overall budget:

    € 5 496 968,94

  • EU contribution

    € 5 496 968,75

Coordinated by:

ECOLE NORMALE SUPERIEURE DE LYON

France