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Background: Blockchain is a digitally managed, distributed, and decentralized ledger used to record transactions in an immutable format. Its characteristics in providing trust, transparency, and traceability make it attractive for applications where transactions are involved. Originally intended...
Persistent link: https://www.econbiz.de/10015194694
Diese Arbeit betrachtet zwei anspruchsvolle Probleme aus dem Bereich Computer- und Kommunikationssicherheit und Vertrauen. Beim Datenbank-Serviceprovider-Problem moechte ein Anwender seine Datenbank an einen Datenbank-Serviceprovider (DSP) uebergeben, damit dieser sie betreiben und ihm zur...
Persistent link: https://www.econbiz.de/10009467070
In this paper, we propose a unified framework for trust management that can cover a broad variety of trust mechanisms including reputations, credentials, local data and environment parameters. The proposed trust management framework leverages established standards and it covers a broad variety...
Persistent link: https://www.econbiz.de/10009481907
Ebben a cikkben az RFID (Rádiófrekvenciás azonosítás) technológia használata által felvetett adatbiztonsági kérdések kerülnek megtárgyalásra. Milyen támadási lehetőségek vannak, és milyen védekezési lépéseket tehetünk ezek kivédésére. Egy termék számtalan veszélynek...
Persistent link: https://www.econbiz.de/10011070280
We explore the consequences of the assumptions used in modern cryptographywhen applied to repeated games with public communication. Technically speaking, we model agents by polynomial Turing machinesand assume the existence of a trapdoor function. Under these conditions, we prove a Folk Theorem...
Persistent link: https://www.econbiz.de/10005043731
Persistent link: https://www.econbiz.de/10005616078
The problem of sharing manufacturing, inventory, or capacity to improve performance is applicable in many decentralized operational contexts. However, the solution of such problems commonly requires an intermediary or a broker to manage information security concerns of individual participants....
Persistent link: https://www.econbiz.de/10009218707
The computational encryption is used intensively by different databases management systems for ensuring privacy and integrity of information that are physically stored in files. Also, the information is sent over network and is replicated on different distributed systems. It is proved that a...
Persistent link: https://www.econbiz.de/10009416412
required a better level of security of the economic data, reason for what the role of cryptography is becoming increasingly …
Persistent link: https://www.econbiz.de/10010632237
Chaotic maps have attracted great interest for its special use in secure communication systems. It is proved that for some chaotic maps defined by we can find an analytical solution, so systems can leads to predictability. In this letter, we propose a new kind of chaotic map based on...
Persistent link: https://www.econbiz.de/10010632246