Currently, Blockchain is one of the most popular distributed system, and it is being used for several applications, such as: cryptocurrencies, healthcare transactions, DRM, supply chains, among others. Although, the idea to store the records organized in a chain of blocks is the same in the different blockchain technologies, the security level and computing capacity may vary significantly between them.
In this presentation we will introduce the blockchain technology from the permissionless to the permissioned architecture, covering their transactional models, consensus algorithms and main security characteristics.
Finally, we will introduce some examples of permissioned blockchain as suitable platform for e-voting systems and new cryptocurrencies in circular economies.
Mirko KOSCINA is BEng and Msc in Electronic Engineering. Currently, he is PhD student in information security at École Normal Supérieure (ENS) and Research Project Manager at Almerys. He is information security expert with more than 7 years of working experience in the electronic payment industry. He has led EMV card migration for Visa, MasterCard and American Express products in Chile, Argentina and Uruguay. Mirko is founder of ICPayment SpA and collaborator of Servired Spain and Cryptomathic A/S. Additionally, he is international consultant and conference speaker on payment media, payment security, fraud prevention and EMV technology.
The SRM seminars are the joint seminars of the Security and Trust of Software Systems and Applied Security and Information Assurance research groups, supported by the Laboratory of Algorithmics, Cryptology and Security and the Interdisciplinary Centre for Security, Reliability and Trust.