△ • About us

About Poseidon

Securing European Digital Identities with Post-Quantum Solutions

POSEIDON is an EU-funded project that prepares Europe for the cybersecurity challenges posed by quantum computing. As quantum technologies advance, the cryptographic methods protecting today’s digital systems will no longer be sufficient. This creates an urgent need for new, quantum-safe security foundations based on post-quantum cryptography (PQC) and hybrid cryptographic approaches.

Quantum computers will most likely be able to break commonly used encryption, putting digital identities, online communications, and critical services across Europe at growing risk. Without timely action, the security of digital systems used by citizens, businesses and public institutions will be fundamentally weakened. This is why action is needed to secure Europe’s digital identity systems and essential online services in near future.

To address these threats, POSEIDON aims to enable a secure and reliable transition to post-quantum cryptography for digital identity and data protection. The project focuses on developing scalable, crypto-agile cryptographic solutions that can be realistically deployed in existing public and private systems to protect sensitive data and identities, both at rest and in transit.

Key Objectives

To support the transition to Post-quantum Cryptography, POSEIDON will:

Develop

mature post-quantum and hybrid cryptographic solutions

Enable

a smooth transition to PQC through crypto-agility and hybridisation

Deliver

easy-to-deploy tools for PQC-secure identity management

Validate

solutions in real-world software and hardware use cases

Support

standardisation and future European cybersecurity policies

Goals

POSEIDON develops and validates technologies focused on:

post-quantum cryptography and hybrid cryptographic schemes,

secure digital identity and credential management,

IoT identity, embedded and pervasive systems,

protection of critical digital services, including financial and smart environments.

privacy-enhancing technologies supporting confidentiality, integrity, and authenticity

consortium

Our Team

POSEIDON is carried out by a European consortium of research organisations, universities and technology companies. The partners contribute expertise in cryptology (cryptography and cryptanalysis), cybersecurity, digital identity, hardware security, and IoT systems. This structure ensures that the project solutions are developed with both strong scientific foundations and real-world deployment requirements in mind.