79 |
|
|
80 |
\normalsize |
\normalsize |
81 |
|
|
|
The Fenfire project is a free software effort. Mostly the source |
|
|
code is licensed under LGPL, but most valuable innovations are |
|
|
licenced under GPL license. If we ever acquire patents, we shall |
|
|
make a worldwide irrevocable license grant for use in GPL software. |
|
|
All source code is available from the Savannah's CVS server |
|
|
(http://www.nongnu.org). |
|
|
|
|
82 |
The Fenfire project is a free software research effort to build |
The Fenfire project is a free software research effort to build |
83 |
a location transparent, hyperstructured computer operating |
a location transparent, hyperstructured computer operating |
84 |
environment. |
environment. |
591 |
is constructed deterministically, which all participating peers have to follow; the topology of the |
is constructed deterministically, which all participating peers have to follow; the topology of the |
592 |
overlay and the placement of services is controlled tightly. This feafure provides $O(\log{n})$ |
overlay and the placement of services is controlled tightly. This feafure provides $O(\log{n})$ |
593 |
resource discovery efficiency and the number of packets grow with $O(\log{n})$. However, |
resource discovery efficiency and the number of packets grow with $O(\log{n})$. However, |
594 |
the tightly structured approach may not be reliable in highly adverse conditions, such as |
the tightly structured approach may not be reliable in highly adverse conditions and the |
595 |
sudded network partition or wide hostile attack. Thus, either of the approches do not support |
performance may suffers (e.g., sudden network partition or hostile attack). |
596 |
*both* adaptable and efficient resource discovery in peer-to-peer environment. |
Thus, either of the approches do not support efficient resource discovery in |
597 |
|
peer-to-peer environment in *adverse* conditions. |
598 |
In our research, we focus on developing algorithms which are both adaptable and efficient in highly |
|
599 |
adverse conditions. Specifically, we study if we can combine the adaptivity of the loosely |
In our research, we study mathematical models which can be used for analyzing the impacts of adverse |
600 |
structured approach with the efficiently of the tightly structured approach. We also examine |
events both in the loosely and tightly structured systems. Currently such impacts are not well known and mathematical |
601 |
how well distributed resource discovery algorithms can be made to endurate hostile attacks |
framework could help researchers to understand these events and effects better. Also, we |
602 |
in Peer-to-Peer enviroment. |
study algorithms which provide $O(1)$ efficiency in Peer-to-Peer environment. In this case, |
603 |
|
our focus is to investigate how well these algorithms outperform in highly adverse conditions. |
604 |
|
|
|
- is it possible to achieve logarithmical efficiency with Gnutella-like overlay (extreme ad hoc) ? |
|
|
- is it possible to improve the adaptivity of tightly structured systems without losing performance |
|
|
/ increasing node's load (gnutella's ad hoc) |
|
|
- is it possible to develop efficient algorithms which are resilient in adverse conditions ? |
|
|
- is it possible to develop algorihtms which provide O(1) efficiency and which are |
|
|
resilient in adverse conditions ? |
|
|
- is it possible to develop working security infrastructure in a P2P environment ? |
|
|
- is it possible to identify entity trustworthy in P2P environement (i.e. the Sybil attack) |
|
|
- is ideology behind tightly structured systems suitable for ad hoc enviroment (deterministic mapping |
|
|
(of overlay and items) ? |
|
605 |
|
|
606 |
Research schedule |
Research schedule |
607 |
----------------- |
----------------- |
623 |
|
|
624 |
|
|
625 |
.. - ethical questions or data protection problems of the research |
.. - ethical questions or data protection problems of the research |
626 |
|
|
627 |
|
|
628 |
|
The Fenfire project is a free software effort. Mostly the source |
629 |
|
code is licensed under LGPL, but most valuable innovations are |
630 |
|
licenced under GPL license. If we ever acquire patents, we shall |
631 |
|
make a worldwide irrevocable license grant for use in GPL software. |
632 |
|
All source code is available from the Savannah's CVS server |
633 |
|
(http://www.nongnu.org). |
634 |
|
|
635 |
|
|
636 |
.. raw:: latex |
.. raw:: latex |
637 |
|
|
638 |
\begin{table}[h] |
\begin{table}[h] |