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A branch hash function as a method of message synchronization in anonymous P2P conversations

Kobusińska A., Brzeziński J., Boroń M., Inatlewski Ł., Jabczyński M., Maciejewski M.

International Journal of Applied Mathematics and Computer Science

2016

Vol. 26, no. 2

479--493

Currently existing solutions rarely protect message integrity, authenticity and user anonymity without burdening the user with details of key management. To address this problem, we present Aldeon—a protocol for anonymous group conversations in a peer-to-peer system. The efficiency of Aldeon is based on a novel tree synchronization algorithm, which is proposed and discussed in this paper. By using this algorithm, a significant reduction in the number of exchanged messages is achieved. In the paper, the formal definition of the proposed hash branch function and the proof of its efficiency are presented.

On Distributed Data Processing in Data Grid Architecture for a Virtual Repository

Kuliberda K., Wiślicki J., Kowalski T. M., Adamus R., Kaczmarski K., Subieta K.

Journal of Applied Computer Science

2010

Vol. 18, nr 2

25-55

The article describes the problem of integration of distributed, heterogeneous and fragmented collections of data with application of the virtual repository and the data grid concept. The technology involves: wrappers enveloping external resources, a virtual network (based on the peer-topeer technology) responsible for integration of data into one global schema and a distributed index for speeding-up data retrieval. Authors present a method for obtaining data from heterogeneously structured external databases and then a procedure of integration the data to one, commonly available, global schema. The core of the described solution is based on the Stack-Based Query Language (SBQL) and virtual updatable SBQL views. The system transport and indexing layer is based on the P2P architecture.

Analiza systemów peer-to-peer (P2P): właściwości, możliwe zastosowania, otwarte problemy

Popczyk G.

Studia Informatica

2003

Vol. 24, nr 3

123-130

W artykule przedstawiono systemy peer-to-peer (P2P) - systemy zdecentralizowane, samoorganizujące się, charakteryzujące się dużą fluktuacją węzłów. Systemy P2P stanowią uzupełnienie, a w wielu przypadkach lepszą alternatywę dla systemów opartych na modelu komunikacji klient-serwer. Celem artykułu jest porównanie podstawowych właściwości istniejących systemów P2P, przedstawienie możliwych zastosowań oraz otwartych problemów badawczych.

This paper presents peer-to-peer (P2P) systems - an example of decentralized, self-organizing, highly dynamic systems. The P2P systems may complement, and in many cases replace the client-server systems. This paper compares the architectures of existing P2P systems, discusses possible applications and open problems.