QSNP：欧洲量子安全网络安全发展倡议.pdf

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1、Iaki BarettiniQSNP.The European Initiative for the Development of Quantum-Safe NetworksQSNP.The European Initiative for the Development of Quantum-Safe NetworksIaki BarettiniQUANTUM TRACKThe problem:Classical cryptography based on mathematical complex functionsOne way functionsEasy in one directionD

2、ifficult in the reverse directionExample:Prime number factorization7x5=3535=P x Q?23X31=713 713=?733 x 1,031=755,723755,723=?As numbers get larger,complexity increases exponentiallyClassical CryptographyClassical Crypto based on mathematical algorithmsInteger factorization(RSA)Discrete logarithms(Di

3、ffie-Hellman)Elliptic curves(ECDH,ECDSA)Post Quantum Crypto(PQC)also based on mathematical principlesNIST contest 2024 for standardization of 4 families of PQC algorithmsChrystals Kyber,Chrystals Dilithium,Falcon,SphincsStill.They are quantum safe now,what about in the future?When Quantum computers

4、become a realityWith sufficient computational power.What is“sufficient”?When a new method of decrypting the mathematical function is discoveredClassical CryptographyQuantum Crypto based in the laws of Quantum mechanicsUse properties of Quantum physics to encode a cryptographic keyPolarized light(pho

5、tons)Entanglement Any eavesdropping attempt between emitter and receiver(Alice and Bob)automatically detectedDedicated quantum channel to encrypt the secret key and distribute itCommunication safety is granted independently of available computational powerQKD:Quantum Key Distribution.Quantum cryptog

6、raphy based on the laws of physics.Breaking Q-Crypto means breaking the laws of NatureQuantum CryptographyAn EU-27 project started in 2018 and spanning until end of the 2020s (https:/qt.eu/)1 Billion budget4 PillarsQuantum ComputingQuantum CommunicationsQuantum Sensing and Metrol