December '21



OLYMPUS was presented on the weekly science dissemination TV show LaboratoriUM in the regional TV channel of Murcia (Spain).

The programme was originally aired on December 29th and can be watched online here, from minute 01:24 to 11:08 (contents in Spanish).

November '21


Long live OLYMPUS!

November 30th, 2021 – Today marks the end of the OLYMPUS project. Over the past 39 months, we have developed an innovative approach for decentralized Identity Providers and privacy preserving Attribute-Based Credentials, with the ambition to further improve privacy of citizens, with minimal personal information disclosure.

The technology was applied and successfully demonstrated in 2 business use cases – the Mobile Driving License (mDL) and Credit File Profile. In both of them, data minimization was pushed to the limit, making everyday actions like age verification and credit pre-scoring fully anonymized.

We take the opportunity to thank all the community for following the project and sharing comments and suggestions, our Advisory Board for their mindful insights, and our Project Officer for the open and frequent communication.

Last but not least, we celebrate the excellent cooperation amongst OLYMPUS consortium partners University of Murcia, Alexandra Institute, IBM, Logalty, Multicert and Scytáles.

The project is over now, but we keep looking forward to hearing from you!


Olympus team at the mDL interoperability test events

Our OLYMPUS team partners from Multicert and Scytales participated in the mDL interoperability test events occurred in Rotterdam (NL) and Houston (TX, USA).

These were the first test events after the ISO 18013-5 specification was approved and publicly released. The high number of participants, including implementation vendors and observing Issuing Authorities, is just testimony of the importance of the mDL use case worked out in Olympus.


Webinar "Security and privacy: Managing threats and protecting passwords"

Don't miss the webinar "Security and privacy: Managing threats and protecting passwords", where IBM researcher Julia Hesse and member of Olympus team will be interviewed about password and identity protection.

Tune in Youtube (Nov 8th 4pm CET/10 am ET)

October '21

Business Workshop

OLYMPUS is organizing a business workshop to present the technology and project results from a business perspective, towards the possible exploitation.

The workshop is addressed to C-level individuals of companies and organizations with a vested interest in Identity Management solutions and strong privacy concerns.

The workshop is online on October 27th 15:00 - 17:00 CEST and attendance is free of charge.

Check further information and appoint yourself at the workshop website:

Digital Around the World

OLYMPUS is present in the 24 hours non-stop virtual conference Digital Around the World.

The specific session about OLYMPUS is included in the panel Intelligent Trust and Identity Management towards a Secure IoT World – Research Challenges and Outcomes, scheduled to October 20th 15:00 CEST.

Free registration on DAW here.

September '21

Released D6.3 Final Pilot deployment and evaluation of User Experience and GDPR compliance

Deliverable 6.3 Final Pilot deployment and evaluation of User Experience and GDPR compliance has been published.

The document describes real world use cases incorporating OLYMPUS and experimentation of the demonstrators by users. The deliverable also contains an evaluation of the legal and privacy aspects of the solutions developed in the project.

Feel free to download it here.

iso logo registered trademark

ISO/IEC 18013-5 approved and published!

The eagerly anticipated ISO/IEC 18013-5 International standard: Personal Identification - Mobile Driver’s License (mDL) was unanimously approved for publication on August 18, 2021 and is now available at

Publication clears the way for ID and driver’s license issuers world-wide to confidently deploy mobile solutions, and for verifiers around the world to implement or adopt readers.

This will enable businesses, government agencies, and other entities that verify government-issued ID documents and driver’s licenses to quickly and with high confidence validate such mobile credentials. mDL also gives the holder control of their ID data on their mobile device, while allowing acceptance via a tap or scan.

August '21


ARES papers and presentations available

The ARES conference has just been held, where OLYMPUS was presented to an audience of over 30 attendees that joined virtually on the workshop.

The papers submitted are now available in the Publications section in this website.

As a bonus, you can also watch the video presentations. Find the Youtube links below each paper in the Publications section.

Released D5.4 OLYMPUS Framework and Tools

Deliverable 5.4 OLYMPUS Framework and Tools has been published.

The document gives a technical overview of the OLYMPUS framework. This overview may be used by architects, and to some degree developers, wishing to integrate the OLYMPUS framework into some application.

The document is available for download here.

July '21

New videos for Credit File use case demonstrator

New videos have been published for the Credit File use case demonstrator.

The videos show the usage of PESTO and pABC from end user perspective when applying to a loan.

See the Credit File web page for further details and watching the videos.


Olympus test campaign at ReachOut

OLYMPUS is conducting a test campaign at ReachOut.

Follow the instructions on the website to get your first grasp with the privacy preserving technology of OLYMPUS.

The test campaign runs until August 15th, 2021.

June '21


Olympus presented in Identification & Security 2021

OLYMPUS was presented on the opening Keynote Session at the virtual webinar Identification & Security 2021 held on June 23rd.

Under the title “Nuevo marco de gestión de identidades basadas en tecnologías de gestión de la privacidad” (in English “New milestone on identity management based on privacy management technologies”), the presentation was targeted to a Spanish audience of over 160 attendees.

Released D4.3 Second Reference Implementation of Oblivious IdM

Deliverable 4.3 Second Reference Implementation of Oblivious IdM has been published.

The document describes the implementation of the oblivious IdM solution, including the APIs that are offered to higher-level applications and the design, security mechanisms, and implementation of a solution to enable authentication in offline use cases with an oblivious IdM.

It also takes into account the OLYMPUS architecture, as well as the interoperability and backward compatibility with widely deployed IdM technologies and approaches.

The document is available in the Deliverables section in this website and you may download it here.

May '21


Source code repository

Source code of OLYMPUS components are available as a bitbucket repository at

The code is licenced according to Apache License, Version 2.0. Feel free to review and try it out.


Call for Papers Workshop “Future of PI” @ EuroS&P’21

OLYMPUS will run the virtual workshop Future of PI - Challenges and Perspectives of Personal Identification as a side event of EuroS&P'21 on September 6th, 2021.

The Call for Presentations is now open until May 21st. Check the details here and submit your proposal.

April '21


Call for Papers ARES 2021

The Call for Papers is open until May 14th, 2021 for the International Workshop on Advances on Privacy Preserving Technologies and Solutions (IWAPS 2021), to be held in conjunction with the 16th International Conference on Availability, Reliability and Security (ARES 2021).

The workshop is jointly co-organized by H2020 R&D projects OLYMPUS, INCOGNITO, ERATOSTHENES and CyberSec4Europe. Visit the website here to know more about the IWAPS 2021 workshop and CfP.


YouTube channel for OLYMPUS

We have just launched a new YouTube channel dedicated for dissemination of OLYMPUS results.

Right now you may find screencasts of the pilot demonstrators. In the coming weeks more contents will be available.

The OLYMPUS YouTube channel is available here.

March '21

Online Service Concept: Legal Advice on the Metallic Keyboard Background. Online Service Concept with Blue Enter Keypad on the Modern Keyboard: Legal Advice. 3D Illustration.

Developer guide is now available!

While the OLYMPUS framework implementation has been available for some time, an introduction to the codebase is now available at

The documentation can be found here and contains both documentation on the various APIs as well as concrete code samples.


Website revamp

With spring coming to the north hemisphere, the OLYMPUS team gave a fresh new look to the website.

Further to the design changes, a new section was added describing the use cases.

You may also find News highlights on the main page and links to social media, bitbucket repository and readthedocs API online documentation.

January '21


New cool deliverable! ❄️

It's not only the temperature cooling in January. OLYMPUS is also releasing a new cool deliverable!

D3.4 has just been published, with user experience guidelines based on empirical work and interviews conducted with volunteers.

Give it a read and find the 8 design guidelines for developing and deploying an OLYMPUS-based identity solution.

December '20


3 Olympus papers in AsiaCrypt 2020

3 papers were accepted for AsiaCrypt 2020:

  • Fuzzy Asymmetric Password-Authenticated Key Exchange
  • Public-Key Generation with Verifiable Randomness
  • Succint Diophantine-Satisfiability Arguments

You may find them of the Deliverables section.

November '20

Presentation at ICT Verticals and Horizontals for Blockchain Standardisation

OLYMPUS presented the work on IdM and possible relation to blockchain standardisation in the sequence of seminars organized by the EU Commission on "ICT Verticals and Horizontals for Blockchain Standardisation: Digital Society, Identity and Privacy, on 2020-11-25.

More information here.

Presentation at IMODEV

OLYMPUS was presented on 2020-11-04 at the 5th Academic Days on Open Government and Digital Issues organized by IMODEV (Paris).

For two days, legal experts in the field of IT law from all around the world discussed about cutting-edge topics in the area, most notably, fundamental rights and freedoms and surveillance, legal and social issues of AI or media bias and social media regulation.

October '20

Olympus remote meeting

The COVID-19 pandemics is still active and traveling is both difficult and not recommended.

The OLYMPUS team has met once more virtually in a remote joint session online.

September '20


PESTO presented in IEEE European Symposium

The OLYMPUS paper “PESTO: Proactively Secure Distributed Single Sign-On, or How to Trust a Hacked Server” was presented at the IEEE European Symposium.

You can watch the replay here and find the original PESTO paper in the Publications section.

August '20

Summer deliverables

Summer time is usually less productive but that is not the case for Olympus! We have just released two new deliverables

D3.3 - OLYMPUS Blueprint outlines the overall OLYMPUS framework, including its components and interfaces. Further focus is on the required components to realize the novel cryptographic approaches of the intended ecosystem.

D5.3 - OLYMPUS support for extended eID models describes how the OLYMPUS components may support and extend the use of electronic identification documents, particularly the mobile driving licence (mDL) demonstrated in WP6. It also provides a discussion and suggestions on aspects of eIDAS that can act as barriers for deployment and use of OLYMPUS itself as an eIDAS identification mean with Level of Assurance High

Enjoy the last warm days and take a good read of these new documents to find out more about OLYMPUS.

June '20

D4.2 released

The Olympus deliverable D4.2 "First Reference Implementation of Oblivious IdM” has just been released and published under the Dissemination section on this website.

This document describes the first implementation of the oblivious IdM solution, including the APIs that are offered to higher-level applications, the design and security mechanisms and the implementation of a solution to enable authentication in online/offline use cases with an oblivious IdM.

April '20

Pilots take off!

With the world in lockdown because of the COVID-19, and virtually all aircrafts grounded, OLYMPUS pilots are taking off.

As we are rolling out the first versions of the Mobile Driver's Licence (mDL) and Credit File pilots, we have just released implementation details on D6.2 First pilots deployment and initial evaluation.

Keep safe, stay home (if you can) and give it a read.

New book supported by Olympus

The new book Security and Privacy in the Internet of Things: Challenges and Solutions (ISBN 978-1-64368-053-8) has just been published.

This book supported by the OLYMPUS project presents 10 papers that emerged from the researches of the Horizon 2020 programme in the area of security, privacy and identity management. They address a wide cross-section of projects ranging from secure management of personal data and specific challenges of IoT with respect to the GDPR, through access control within a highly dynamic IoT environment and increasing trust with distributed ledger technologies, to new cryptographic approaches as a counter-measure for side-channel attacks and the vulnerabilities of digital systems.

March '20

Road ahead

We’re halfway!

Today we enter the 2nd half of the project.

Over the last 18 months we’ve been busy with laying down the fundamental building blocks of OLYMPUS, in support of a privacy aware identity management ecosystem that further protects personal information of citizens.

A lot of research was carried out on the innovative cryptographic techniques, with many articles being published on reference journals. Early on, we’ve planned the requirements. Lately, we’ve been fine tuning the architecture of OLYMPUS and started with implementations. In the meanwhile, OLYMPUS has been spreading the word in international conferences and participating in standardization activities.

Have a look at the Publications and Deliverables section of the website and stay tuned for the upcoming results.

WG10 meeting Orland (FL, US)

Standards track

From 2 to 4 March, Olympus partners Multicert and Scytales participated in the ISO/IEC JTC1/SC17 WG 10 meeting held in Orlando (Florida, US).

The team onsite provided an update about the progress of Olympus in relation to the “Day 2 features” under discussion of the mobile driving licence.

Online Service Concept: Legal Advice on the Metallic Keyboard Background. Online Service Concept with Blue Enter Keypad on the Modern Keyboard: Legal Advice. 3D Illustration.

Virtual Advisory Board meeting

On March 11th the consortium held a virtual meeting with the Advisory Board to update on the latest progress of the project, hear feedback about the results so far and seek guidance for further opportunities of exploitation on the results.

It was a very fruitful session with mindful exchange of ideas and challenges. We would like to thank the distinct members of our Advisory Board for their time and insights.

February '20

Journal Sensors

Olympus paper published in Journal Sensors 2020

The paper The OLYMPUS Architecture — Oblivious Identity Management for Private User-Friendly Services has been published in Journal Sensors as part of the Special Issue Selected Papers, from the 3rd Global IoT Summit (GIoTS).

The original paper presented by Olympus in GIoTS 2019 has been further extended and improved for publishing and can be found online here or the at Journal Sensors 2020, Volume 20, Issue 3, 945.

January '20

PESTO cryptographic protocol

New research cryptographic papers published

Resulting from the work in Olympus, two new research papers were published describing the innovative cryptographic techniques.

The first paper PESTO improves upon the work of PASTA and proposes a distributed Single Sign On (SSO) protocol with proactive and adaptive security, guaranteeing security as long as not all servers are compromised at the same time.

The second paper Short Threshold Dynamic Group Signatures describes a new construction relying on pairing-based Pointcheval–Sanders(PS) signature scheme, which yields very short group signatures of two first-group elements and three exponents.

These protocols support the cryptographic design of the Olympus privacy and user-friendly Identify Providers described in D4.1.

Consortium meeting in Zurich

The Olympus partners met in Zurich (Switzerland) for a new consortium meeting. We had an hands on the last project developments, further discussions on technical integrations and a global review of the work ahead.

Despite the cold weather of Zurich, the consortium is working at full steam!

December '19

Olympus at ISO meeting in Sapporo, Japan

Within the scope of the standardization activities of WP7, the concepts and use cases of Olympus were presented on December 9th in the ISO/IEC JTC1/SC17 WG10 meeting held in Sapporo, Japan.

Amongst the 25-over worldwide technical experts, the topic raised big interest and discussions for possible inclusion as a Day 2 feature of the mobile Driver License (mDL), to further enhance data minimization and support a broader range of business scenarios.

Open Access Government

Olympus featured at Open Access Government

The last edition of the digital publication Open Access Government has included an article about Olympus.

It is available online here.

October '19

D4.1 released

The Olympus deliverable D4.1 “Cryptographic Design of an Oblivious IdM System” has been published and available for download under the Dissemination section. It defines the main cryptographic approaches and techniques used as the baseline for the oblivious IdM system.

For this, we introduce a novel building block called Distributed Partially-Oblivious Pseudorandom Function(dpOPRF) allowing us to verify passwords in Single Sign-On requests in a distributed manner. We also demonstrate an efficient dpOPRF construction that we believe is of broader interest. We further show how distributed issuance of credentials can be realized efficiently, using a new multi-signature variant of Pointcheval and Sanders signatures which allows n signers to separately compute a joint short signature on the same message.

September '19

Consortium meeting

The consortium will meet up in Tallinn on the 16th - 17th of September. The meeting is hosted by Scytales and will be the 4th project meeting.

eID Forum 2019

Participation at the eID Forum

The consortium will attend the eID forum conference held in Tallinn on the 17th - 18th of September.

August '19

IFIP Summerschool

The consortium will be presenting at the IFIP summerschool in Brugg, Switzerland. The presentation will present the initial problem of the project and discuss the applicability of the use cases.


mDL interoperability

Multicert and Scytales will be present at the mDL interoperability event in Omaha. The event allows producers and other stakeholders in mDL technology to verify their products are interoperable.

June '19

Global IoT Summit and IoT week

The University of Murcia and the Alexandra Institute was present at the joint GIoTS and IoT week conference in Denmark.

Paper published at GIoTS

The paper "OLYMPUS: towards Oblivious identitY Management for Private and User-friendly Services" has been accepted by GIoTS and is part of the proceedings.

It is available online here.

May '19

Eurocrypt 2019

Presented paper at Eurocrypt 2019

The paper (R)CCA Secure Updatable Encryption with Integrity Protection was presented at Eurocrypt 2019.

Aarhus meeting

Consortium meeting

The consortium held its 3rd project meeting in Aarhus on the 8th - 9th of May.

February '19

Olympus Madrid meeting

Consortium meeting Madrid

Workshop meeting in Madrid, at Logalty office, to establish an oblivious identity management framework that ensures secure and privacy-friendly virtual identity management interactions for citizens accessing services in Europe.

October '18

Kick-off meeting F2F Murcia

Consortium partners University of Murcia (ES), IBM Research Zurich (CH), Alexandra Institute (DK), Logaly (ES), Multicert (PT) and Syctales (SE) have gathered together face-to-face in Murcia to kick-off the H2020 R&D project Olympus.

We are set to develop new and innovative ways to provide privacy, yet user-friendly online services.

September '18


Introducing Olympus at the eID Conference

On September 27th, the project Olympus had an early introduction at the eID Conference 2018, held in Lisbon (PT).

The goals of the project were presented within the context of the upcoming Mobile Drivers License ISO 18013-5 standard.