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dc.titleQuantum-Resistance in Blockchain Networks
dc.contributor.authorAllende López, Marcos
dc.contributor.authorLópez León, Diego
dc.contributor.authorCerón, Sergio
dc.contributor.authorLeal Batista, Antonio
dc.contributor.authorPareja, Adrián
dc.contributor.authorDa Silva, Marcelo
dc.contributor.authorPardo, Alejandro
dc.contributor.authorJones, Duncan
dc.contributor.authorWorrall, David
dc.contributor.authorMerriman, Ben
dc.contributor.authorGilmore, John
dc.contributor.authorKitchener, Nick
dc.contributor.authorVenegas-Andraca, Salvador E.
dc.contributor.orgunitIDB Lab
dc.contributor.orgunitTechnology and Transformation Department
dc.date.available2021-06-08T00:06:00
dc.date.issue2021-06-08T00:06:00
dc.description.abstractThis paper describes the work carried out by the Inter-American Development Bank, the IDB Lab, LACChain, Cambridge Quantum Computing (CQC), and Tecnológico de Monterrey to identify and eliminate quantum threats in blockchain networks. The advent of quantum computing threatens internet protocols and blockchain networks because they utilize non-quantum resistant cryptographic algorithms. When quantum computers become robust enough to run Shor's algorithm on a large scale, the most used asymmetric algorithms, utilized for digital signatures and message encryption, such as RSA, (EC)DSA, and (EC)DH, will be no longer secure. Quantum computers will be able to break them within a short period of time. Similarly, Grover's algorithm concedes a quadratic advantage for mining blocks in certain consensus protocols such as proof of work. Today, there are hundreds of billions of dollars denominated in cryptocurrencies that rely on blockchain ledgers as well as the thousands of blockchain-based applications storing value in blockchain networks. Cryptocurrencies and blockchain-based applications require solutions that guarantee quantum resistance in order to preserve the integrity of data and assets in their public and immutable ledgers. We have designed and developed a layer-two solution to secure the exchange of information between blockchain nodes over the internet and introduced a second signature in transactions using post-quantum keys. Our versatile solution can be applied to any blockchain network. In our implementation, quantum entropy was provided via the IronBridge Platform from CQC and we used LACChain Besu as the blockchain network.
dc.format.extent33
dc.identifier.doihttp://dx.doi.org/10.18235/0003313
dc.identifier.urlhttps://publications.iadb.org/publications/english/document/Quantum-Resistance-in-Blockchain-Networks.pdf
dc.language.isoen
dc.mediumAdobe PDF
dc.publisherInter-American Development Bank
dc.subjectBlockchain
dc.subjectEthereum
dc.subjectCloud Computing
dc.subjectScience and Technology
dc.subjectCybersecurity
dc.subjectLoan Operation
dc.subjectInternet
dc.subjectDigital Identity
dc.subjectLACChain
dc.subjectCryptocurrency
dc.subjectSmart Contract
dc.subjectDigital Signature
dc.subjectCyberthreat
dc.subjectCryptographic Control
dc.subject.jelcodeO32 - Management of Technological Innovation and R&D
dc.subject.jelcodeC60 - Mathematical Methods • Programming Models • Mathematical and Simulation Modeling: General
dc.typeDiscussion Papers
idb.identifier.pubnumberIDB-DP-00866
idb.operationBK-C2016
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