Sökning: "permissioned"

Visar resultat 11 - 15 av 17 uppsatser innehållade ordet permissioned.

  1. 11. Blockchain Based Electronic Health Record Management For Mass Crisis Scenarios : A Feasibility Study

    Master-uppsats, KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Författare :Filippo Boiani; [2018]
    Nyckelord :;

    Sammanfattning : Electronic Health Records (EHRs) are both crucial and sensitive as they contain essential information and are frequently shared among different parties including hospitals, pharmacies or private clinics. This information must remain correct, up to date, private, and accessible only to the authorized people. LÄS MER

  3. 12. Permissioned Blockchains and Distributed Databases : A Performance Study

    Master-uppsats, Linköpings universitet/Programvara och system

    Författare :Sara Bergman; [2018]
    Nyckelord :Blockchain; Hyperledger Fabric; Permissioned blockchain; Distributed Database; Cassandra; Latency; Distributed Systems;

    Sammanfattning : Blockchain technology is a booming new field in both computer science and economicsand other use cases than cryptocurrencies are on the rise. Permissioned blockchains are oneinstance of the blockchain technique. In a permissioned blockchain the nodes which validatesnew transactions are trusted. LÄS MER

  4. 13. Implications and Impact of Blockchain Transaction Pruning

    Master-uppsats, Luleå tekniska universitet/Institutionen för system- och rymdteknik

    Författare :Emanuel Palm; [2017]
    Nyckelord :Blockchain; blockchains; hyperledger; fabric; hyperledger fabric; private blockchain; permissioned blockchain; pruning; cryptography; computer science; disk; disk usage; memory; efficiency; pruning predicate function;

    Sammanfattning : This thesis presents an extension to Hyperledger Fabric, a private blockchain system, allowing historic transactions to be pruned without peer coordination. The feature is facilitated via pruning predicate functions, provided along any smart contracts a given system is desired to host. LÄS MER

  5. 14. Distributed ledger technology in the capital market : Shared versus private information in a permissioned blockchain

    Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Avdelningen för datalogi

    Författare :Alessandro Piccolo; [2017]
    Nyckelord :Blockchain; Blockchain technology Distributed ledger; Capital market; Private transaction; Cryptography; Bitcoin; Ethereum; Quorum; Corda; Ripple;

    Sammanfattning : This master thesis explores how blockchain technologies can be utilized within the financial sector with focus on how to store both private and public information on the blockchain. The capital market is looking into ways of cutting down administrative work through streamlining the financial process by using blockchain technologies. LÄS MER

  7. 15. Blockchain database; technical background and a reconnaissance on an implementation within the banking industry

    Kandidat-uppsats, KTH/Skolan för datavetenskap och kommunikation (CSC)

    Författare :Tom Johansson; Viktor Charpentier; [2017]
    Nyckelord :blockchain financial transactions cryptocurrency implementation banking;

    Sammanfattning : All human interaction can be depicted as exchanges. We exchange trivial information, feelings, assets and more. Valuable exchanges have one thing in common; they all require some degree of trust. In today’s society we rely on institutionalized trust when commencing an exchange of value. LÄS MER